Skocz do pozycji: 1.

Tytuł:

Rainfall-Induced Landslide Thresholds Development by Considering Different Rainfall Parameters: A Review

Autorzy:

Mansor Maturidi, Abdul Muaz Abu
Kasim, Norhidayu
Abu Taib, Kamaruddin
Wan Azahar, Wan Nur Aifa

Powiązania:

https://bibliotekanauki.pl/articles/2027967.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

rainfall threshold
landslide
rainfall parameter
empirical
correlation

Opis:

This paper reviews the development of landslide thresholds from the perspective of rainfall and climate patterns. For certain, geology, morphology, lithology, etc., contribute to the initiation of the mass movement. However, the role of rainfall as the triggering mechanism of the landslide is vital as well. It has been proven by many researchers from various studies worldwide that have proposed the rainfall thresholds by utilising different rainfall parameters. The outcome of their studies is interesting, since different regions have diversified patterns of rainfall that produce a variety of threshold models. Therefore, from various published papers on rainfall thresholds, this paper studied the variety of rainfall parameters that have been utilised in establishing the rainfall threshold for landslide prediction. Instead of providing a better understanding regarding the application, this review aimed to cultivate the following study for deriving rigorous parameters for the purpose of sustainable findings.

Źródło:

Journal of Ecological Engineering; 2021, 22, 10; 85-97
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

Rainfall Variability and Drought Occurrences in the Batticaloa District, Sri Lanka

Autorzy:

Rajendram, K.

Powiązania:

https://bibliotekanauki.pl/articles/1839767.pdf

Data publikacji:

2021

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Rainfall Variability
Strandred Deviation
Drought Occurrence
Rainfall Trend

Opis:

Due to recent climate changes and monsoon variability, the amount, pattern, and intensity of rainfall are significantly changing in many Asian countries. This paper attempts to study the annual and seasonal rainfall patterns and their variability, and the occurrence of droughts. Monthly rainfall data have been collected from the Department of Meteorology, Colombo, from 1871-2020 for Batticaloa station. The Standard Deviation, Coefficient of Variation least-square trend had computed for annual and seasonal rainfall to study the rainfall variability as whole and different epochs. To study the drought scenario Standardized Precipitation Index had computed, and then the drought was categorized based on the SPI criteria, and the drought severity had distinguished. Spatial rainfall distribution maps had prepared using Arc GIS 10.4 software. The Standard Deviation and the Coefficient of annual rainfall variation are 423.9 and 24.8%, respectively. The epochal variability results reveal that the variability of rainfall is higher in 1961-1990 (CV: 28.9%), which indicates the low dependability, while variability is lower in the epochs of 1931-1960 (CV: 17.7%) and 1871-1900 and (19.6%) respectively. The long-term rainfall trend (1871-2020) results reveal the increasing trend and its r2 = 0.0271. However, only the epoch 1961-1990 shows a downward trend with r2 = 0.2398. The rainfall anomaly results reveal the extreme drought had occurred in 1968 and 1889. The severe droughts had occurred in 1998, 1983, 1981, 1980, 1909, and 1890. Out of 150 years of data periods, 25 years had been identified as drought years. The probability of drought occurrence is P = 0.167. Terefore once in five to six years, drought could have occurred.

Źródło:

World News of Natural Sciences; 2021, 39; 30-45
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Characteristics of Measured Rainfall Rate at Ogbomoso, Nigeria for Microwave Applications

Autorzy:

Semire, F. A.
Raji, T. I.

Powiązania:

https://bibliotekanauki.pl/articles/309068.pdf

Data publikacji:

2011

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

characteristics
Ogbomoso
rainfall

Opis:

Characteristics of rainfall rate useful in the estimation of attenuation due to rain are presented. Rain data collected at Ogbomoso between January-October, 2009 were used in the analysis. Result shows that power law relationship exists between the equiprobable rain rates of two different integration times. The value of conversion factor CE and CR obtained for Ogbomoso are 0.28(60) and 0.64(90) respectively. Our result then shows that different conversion factor is required for different location even within the same climatic region.

Źródło:

Journal of Telecommunications and Information Technology; 2011, 2; 85-89
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Impact of rainfall trends on flood in Agnéby watershed

Autorzy:

Konin, N’Da Jean Claude
N’go, Yao Alexis
Soro, Gneneyougo Emile
Goula, Bi Tié Albert

Powiązania:

https://bibliotekanauki.pl/articles/2073726.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Agnéby watershed
flood
hydro-rainfall hazard
Ivory Coast
rainfall trend

Opis:

The aim of this study is to analyse the spatio-temporal evolution of hydro-rainfall variables in the Agnéby watershed in a disturbed climatic context. Rainfall data from the stations of Arrah, Bongouanou, M’Batto, Akoupé, Céchi, Agboville, Adzopé, Sikensi, Abidjan Airport and Dabou as well as hydrometric data from the stations of Agboville, Offoliguié, M’Bessé and Guessiguié were used. The methodological approach is based on the application of independence and trend tests and spatio-temporal analysis of daily rainfall maxima, duration of consecutive rainfall events, number of rainfall events above a threshold and daily flow maxima. The hypothesis of independence justified the relevance of the choice of variables. The trend test showed the dynamic upward evolution of extreme rainfall and the decrease in the duration of consecutive rainy episodes, in the number of rainy episodes and in the flows feeding the main watercourse. Moreover, spatial analysis of daily maximum rainfall amounts above 120 mm, consecutive maximum rainfall amounts above 160 mm and Gumbel rainfall amounts above 190 mm indicated heavy rainfall in the southern part of the watershed. However, a decrease in rainfall is recorded in the areas covered by the stations of Arrah, Bongouanou, M’Batto, Ce chi and Akoupé. An increase in the flood flow calculated from the Generalized Extreme Value (GEV) between 76.60 m3∙s-1 and 225.70 m3∙s-1 is presented in the main river. The spatio-temporal variation in annual rainfall heights showed a high rainfall in the southern part of the watershed with a decrease in rainfall over the decades (1976-1985 and 1996-2005) followed by an increase over the decades (1986-1995 and 2006-2015). Despite the general decrease in rainfall, extreme rainfall has become frequent, causing flooding in the watershed.

Źródło:

Journal of Water and Land Development; 2022, 52; 9--20
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Spatial variability study of rainfall in Cartagena de Indias, Colombia

Autorzy:

Mouthon-Bello, Javier A.
Quiñones-Bolaños, Edgar
Ortiz-Corrales, Jairo E.
Mouthon-Barraza, Natalia
Hernández-Fuentes, Maria D.J.
Caraballo-Meza, Andrea C.

Powiązania:

https://bibliotekanauki.pl/articles/2174346.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

coastal city
rainfall duration
rainfall intensity
spatial correlation
spatial variability

Opis:

Precipitation is a component of the hydrological cycle, knowing its spatial distribution is vital for the management of hydrographic basins, the territory and the development of fundamental activities for society. That is why the present study shows the spatial variability of rainfall in Cartagena de Indias city with a network of rain gauges, made up of nine pieces of equipment, separated from each other by 0.9-27 km. After a year of recording (2019), using historical series of data, it was found that the maximum rainfall occurs in the trimester between September and November, with interpolated maps made by the Ordinary Kriging (OK) method it was found that the maximum rainfall is focused on the north, centre and west of the territory, instead, the maximum intensities are presented in the centre and west, the minimums for both variables are presented to the east and south. The 70 and 90% of the rain events have a duration of less than 30 min and 1 h, respectively. Three-parameter exponential function was fitted to the paired correlation distances, and presented correlations lower than 0.8, 0.5 and 0.2 from distances of 1, 3 and 7 km, respectively, in 30 min rain integration. It was also found that with a pluviometric network conformed by at least six pieces of equipment and separated by a 5 km distance from each other in the urban area, a correlation of 0.5 and compliance with the WMO recommendations would be obtained.

Źródło:

Journal of Water and Land Development; 2022, 55; 138--149
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Wstępne rezultaty monitoringu warunków opadowych na terenie miasta Bydgoszczy w latach 2013–2014
The preliminary results of monitoring in terms rainwater in 2013–2014 in the city of Bydgoszcz

Autorzy:

Pasela, R.
Bohuszewicz, G.
Milik, J.
Budzińska, K.
Berleć, K.
Stachowski, P.

Powiązania:

https://bibliotekanauki.pl/articles/399758.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

opad deszczu
natężenie deszczu
deszczomierz
Bydgoszcz
rainfall
rainfall intensity
rain gauge

Opis:

W artykule przedstawiono wstępne wyniki analiz rozkładu wysokości, intensywności i natężenia opadu deszczu na terenie miasta Bydgoszczy, na podstawie pomiarów sieci pluwiometrycznej eksploatowanej przez Miejskie Wodociągi i Kanalizacje w Bydgoszczy. System ten składa się z sześciu deszczomierzy korytkowych typu TPG-036-H24 firmy A-STER, wyposażonych w elektroniczny system zapisu danych z ich transmisją w technologii GPRS do serwera centralnego. Zapis wyników pomiaru wysokości opadów odbywa się w interwałach 2-minutowych z dokładnością do 0,1 mm. Poza tym analizie poddano ekstremalne wysokości i natężania opadów zarejestrowanych w badanym okresie, które zostały zaprezentowane w postaci tabel i wykresów. Pomiary natężenia i wysokości opadu prowadzone przy wykorzystaniu odpowiednio gęstej sieci pluwiometrycznej dają możliwość uzyskania wartościowych rezultatów, niezbędnych w analizie funkcjonowania miejskich systemów kanalizacyjnych.
The paper shows the results of analysis distribution of the amount and rainfall intensity in Bydgoszcz based on network measurements of rain, which is operated by the Municipal Water Supply and sewers in Bydgoszcz. The system consists of six rain-gauges type TPG-036-H24 by A-STER, which are equipped with electronic data recording system with GPRS transmission to a central server. A record of the amount of rainfall measurement results is carried out in 2-minute intervals with an accuracy of 0.1 millimeters. The extreme highs and the intensity of rainfall registered in the audited period was analyzed. The results were presented in a form of tables and graphs. The intensity measurements and the amount of rainfall were used by a dense network of rainwater, which allows you to get valuable results, essential in the analysis of the functioning of municipal sewer system.

Źródło:

Inżynieria Ekologiczna; 2015, 45; 176-182
2081-139X
2392-0629

Pojawia się w:

Inżynieria Ekologiczna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

An empirical model of rainfall intensity as a function of rainfall duration and probability of occurrence

Autorzy:

Harisuseno, Donny
Prasetyorini, Linda
Fidari, Jadfan S.
Chandrasasi, Dian

Powiązania:

https://bibliotekanauki.pl/articles/2203546.pdf

Data publikacji:

2023

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

empirical model
probability of occurrence
rainfall duration
rainfall intensity
recurrence interval

Opis:

Rainfall is one of the main components of the hydrologic cycle; thus, the availability of accurate rainfall data is fundamental for designing and operating water resources systems and infrastructure. This study aims to develop an empirical model of rainfall intensity (It,p) as a function of its probability (p) and duration (t). In 1999-2020, data on the hourly duration of rainfall were collected from automatic rainfall recorder (ARR) gauges. The empirical model has been developed using a statistical approach based on duration (t) and probability (p), and subsequently they have been validated with those obtained from ARR data. The resulting model demonstrates good performance compared with other empirical formulas (Sherman and Ishiguro) as indicated by the percent bias (PBIAS) values (2.35-3.17), ratio of the RMSE (root mean square error) between simulated and observed values to the standard deviation of the observations (RSR, 0.028-0.031), Nash-Sutcliffe efficiency (NSE, 0.905-0.996), and index of agreement (d, 0.96-0.98) which classified in the rating of “very good” in model performance. The reliability of the estimated intensity based on the empirical model shows a tendency to decrease as duration (t) increases, and a good accuracy mainly for the rainfall intensity for shorter periods (1-, 2-, and 3-hours), whereas low accuracy for long rainfall periods. The study found that the empirical model exhibits a reliable estimate for rainfall intensity with small recurrence intervals (Tr) 2-, 5-, 10-, and a 20-year interval and for a shorter duration (t). Validation results confirm that the rainfall intensity model shows good performance; thus, it could be used as a reliable instrument to estimate rainfall intensity in the study area.

Źródło:

Journal of Water and Land Development; 2023, 56; 182--193
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Dynamika zmian sumy i struktury opadów w Wielkopolsce w latach 1981–2020
The dynamics of changes in the sum and structure of atmospheric precipitation in Wielkopolska in 1981–2020

Autorzy:

Walkowska, Anita
Półrolniczak, Marek
Kolendowicz, Leszek

Powiązania:

https://bibliotekanauki.pl/articles/43348607.pdf

Data publikacji:

2022

Wydawca:

Poznańskie Towarzystwo Przyjaciół Nauk

Tematy:

precipitation
rainfall
snowfall
Wielkopolska

Opis:

The study analyzes the temporal and spatial variability of atmospheric precipitation and the impact of global climate changes on precipitation in Wielkopolska. The study was based on data provided by the IMGW-PIB and collected from 5 synoptic stations located in central Poland. The average multiannual sums of precipitation, the average number of days with precipitation in total and the particular types of precipitation in 1981–2020 were calculated, and their spatial distribution presented. Moreover, seasonal precipitation totals and statistics for days with precipitation were also calculated, and trends of individual pluviometric characteristics presented. The average annual rainfall was 523 mm, and the average annual rainfall frequency was 163 days. Days with rainfall were more frequent than days with snow (35 days). Over the course of many years, there was an apparent decrease in days with snowfall (-6.5 per decade) and an increase in the number of rainy days (4.3 per decade). Annual precipitation totals show no significant long-term changes.

Źródło:

Badania Fizjograficzne Seria A - Geografia Fizyczna; 2022, 13 (73); 207-226
2081-6014

Pojawia się w:

Badania Fizjograficzne Seria A - Geografia Fizyczna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Estimation of plant water requirements during sequences of days without precipitation in 2011-2015

Autorzy:

Wójcik, K.
Treder, W.
Zbudniewek, A.

Powiązania:

https://bibliotekanauki.pl/articles/101013.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

rainfall
evapotranspiration
growing season

Opis:

This paper presents data on daily precipitation totals from six meteorological stations and the climatic water balance for the stations located throughout Poland in 2011-2015. The following sequences of days without precipitation were distinguished: from 11 to 15 days, from 16 to 20 days, and of more than 20 days. The number of precipitation-free sequences during the growing season in 2011-2015 was highly variable. Over the studied period, there were from 1.0 rainless sequence in Wtelno to 2.4 such sequences in Gołębiów per one growing season. The most frequently occurring were sequences of 11-15 days, while those of 16-20 days were less frequent. In the years under analysis, all of the different sequences occurred most frequently in July, and the least frequently in April. The highest numbers of sequences without precipitation were recorded in the south-east of Poland (Zakalniki, Gołębiów).

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2017, III/2; 1187-1200
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Estimation of plant water requirements during sequences of days without precipitation in 2011-2015

Autorzy:

Wójcik, K.
Treder, W.
Zbudniewek, A.

Powiązania:

https://bibliotekanauki.pl/articles/101157.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

rainfall
evapotranspiration
growing season

Opis:

This paper presents data on daily precipitation totals from six meteorological stations and the climatic water balance for the stations located throughout Poland in 2011-2015. The following sequences of days without precipitation were distinguished: from 11 to 15 days, from 16 to 20 days, and of more than 20 days. The number of precipitation-free sequences during the growing season in 2011-2015 was highly variable. Over the studied period, there were from 1.0 rainless sequence in Wtelno to 2.4 such sequences in Gołębiów per one growing season. The most frequently occurring were sequences of 11-15 days, while those of 16-20 days were less frequent. In the years under analysis, all of the different sequences occurred most frequently in July, and the least frequently in April. The highest numbers of sequences without precipitation were recorded in the south-east of Poland (Zakalniki, Gołębiów).

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/1; 611-624
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Flow Rate Determination as a Function of Rainfall for the Ungauged Suhareka River

Autorzy:

Kusari, Laura
Osmanaj, Lavdim
Shehu, Hana
Bungu, Samir

Powiązania:

https://bibliotekanauki.pl/articles/2086389.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

catchment area
regression coefficient
CN parameter
rainfall intensity
flow curve
rainfall
flood

Opis:

For ungauged rivers, when there are no hydrological measurements and there is a lack of data on perennial flow rates, the latter one to be determined based on other hydrological data. The river Suhareka catchment represents a similar case. Since there is no data on Suhareka’s flow rates, the authors of this study aimed for the flow rate determination based on rainfall measurements. From the available data on annual precipitation (monthly sums) provided by the Kosovo Hydrometeorological Institute for the Suhareka hydrometric station, the observed monthly rainfall data for 30 years were analysed. Those gaps were initially filled by connecting the hydrometric station in Suhareka with those of Prishtina, Prizren and Ferizaj, and as a result a fairly good fit was ensured. Moreover, the intensity-duration-frequency curves were formed using the expression of Sokolovsky, as a mathematical model of the dependence I (T, P). For a transformation of rainfall into flow, the American method SCS was used. As a result, the equation for the Suhareka River basin was derived, which enabled the determination of maximum inflows, for different return periods. The results obtained through this paper, indicates that even for ungauged river basins the peak flows can be determined from available rainfall data.

Źródło:

Journal of Ecological Engineering; 2022, 23, 4; 110--121
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Comparison of water needs of true millet in the region of Bydgoszcz and Wroclaw

Autorzy:

Rolbiecki, S.
Chmura, K.

Powiązania:

https://bibliotekanauki.pl/articles/61162.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

rainfall
water need
millet
Bydgoszcz town
Wroclaw city
water deficit
rainfall deficiency

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2015, III/2
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Influence of Selected Factors on Erodibility in Catchment Scale on the Basis of Field Investigation

Autorzy:

Hejduk, L.
Hejduk, A.
Baryła, A.
Hewelke, E.

Powiązania:

https://bibliotekanauki.pl/articles/124503.pdf

Data publikacji:

2017

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

erodibility
catchment scale
rainfall simulation

Opis:

Drying of soil surface can affect the soil water repellency and reduce the infiltration, it may have impact on runoff and erosion. The aim of the research was to determine the effect of soil surface drying on its repellency and erosion, and the dependence of these values from the land use on the changing weather conditions background during the year. The research was conducted on Zagożdżonka river catchment, six times during the period of July 2014-September 2015, at five measuring points characterized by different land use. The irrigation of soil was carried out using rainfall simulator made by Eijkelkamp company. The intensity of the rain during the first 3 minutes of precipitation was 6 mm / min, the kinetic energy of rain was 72 J·m^-2. The surface runoff was collected into containers placed in the bottom of the rainfall simulator. Water Drop Penetration Time test was used to determine soil surface wettability. WET-2 probe was used to measure the moisture and soil temperature. Sediment concentration in the effluent was determined by weight method on filters. Variability of soil wettability was observed in different dates of measurements. Increasing repellency was recorded during the dry periods. The highest class of repellency was found in the forest and wild meadow areas. There was no direct correlation between the soil moisture, soil temperature and runoff. Both, sediment concentrations and sediment grain size, varied in the collected samples, depending on measurement time. The highest sediment concentrations were found in runoff from agricultural land use.

Źródło:

Journal of Ecological Engineering; 2017, 18, 1; 256-267
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Status prawny wód opadowych i roztopowych
Legal status of rainwater and snowmelt

Autorzy:

Krzyż, Paweł Bartłomiej

Powiązania:

https://bibliotekanauki.pl/articles/46606713.pdf

Data publikacji:

2023

Wydawca:

Wydawnictwo Uniwersytetu Śląskiego

Tematy:

water
rainfall
meltwater
property
use

Opis:

This article is a comprehensive analysis of the legal status of rainwater and snowmelt. The study will attempt to distinguish these waters in an objective way, identify their specific legal context and, finally, establish their civil law status. Incidentally, the issues related to the acquisition of ownership of rainwater and snowmelt by property owners, treatment and use of these waters.

Źródło:

Prawne Problemy Górnictwa i Ochrony Środowiska; 2023, 1; 1-20
2451-3431

Pojawia się w:

Prawne Problemy Górnictwa i Ochrony Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Rainfall Variability in the wet-dry seasons. An analysis in Batticaloa District, Sri Lanka

Autorzy:

Mathanraj, S.
Kaleel, M. I. M.

Powiązania:

https://bibliotekanauki.pl/articles/1118352.pdf

Data publikacji:

2017

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Flood
Meteorology
Rainfall variability
Wet-dry

Opis:

Rainfall is of primary importance to both the physical and cultural landscape of any region. The objective of this study is to find the trends for rainfall variability on climate change in Batticaloa District of Sri Lanka, by analyzing 146 years of monthly data of rainfall received during the period 1869-2014 from the meteorological station of the Department of Meteorology. Some studies attribute extreme events to rainfall variability due to climate change induced by global warming. However, there is a dearth of climatological studies addressing the trends in rainfall over Sri Lanka in support of such attribution. In our study, statistical analysis such as linear and standard deviation for 3 year, 5 year, 11 year and 21 year periods were utilized to examine periodic rainfall changes in both annual and seasonal contexts. The study finds that the 3, 5 year moving average shows high drier seasons, but the 11, 21 years moving average show higher wet seasons during the period of study. The changes of rainfall are known to have led to disasters such as flood and drought. Annual rainfall varies from 864 mm to 3081 mm, the distribution of which has sight variation throughout the district.

Źródło:

World News of Natural Sciences; 2017, 9; 71-78
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:

The Influence of Rainfall Variability on Paddy Production: A Case Study in Batticalloa District

Autorzy:

Mathanraj, S.
Kaleel, M. I. M.

Powiązania:

https://bibliotekanauki.pl/articles/1189997.pdf

Data publikacji:

2016

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Agriculture
Meteorology
Paddy production
Rainfall variability

Opis:

Climate change has become a major concern to human society because of its potentially deleterious impact worldwide. The degree to which rainfall amounts vary across an area or through time is an important characteristic of the climate of an area. This subject area in meteorology is called "rainfall variability”. Changes in amount, intensity and frequency affect the environment and society. The annual rainfall varies from 864 mm to 3081 mm (146 years data) distribution, which has sight variation throughout the district. The study purposes to examine the relationship between rainfall and paddy production. Samplings from 100 households have been gathered by questionnaire survey as primary data and the secondary data has been collected Meteorological Department, Department of Agriculture and published research reports. 146 years rainfall data and 34 years paddy cultivation data has been utilized to analyse the result. Accurate statistical methods have been used to find the variability that includes correlation and trend analysis of 3, 5 years moving average of standard deviation. As the result, the study finds that through the 3, 5 years moving average had shown high drier seasons of the years. The paddy production was very high in Maha season but this was very low in Yala season because of the rainfall variability. By the correlation between rainfall and paddy production, the significant value is positive in Maha season and this is negative in Yala season. However, both are having the different significance each other. Thus, even the rainfall was highly influenced to the higher production, this is impossible in each time. Therefore, the development of irrigation tanks and channels, rainwater harvesting and proper management would be supported to more production in Yala season.

Źródło:

World Scientific News; 2016, 52; 265-275
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

The Effect of Land Management on the Retention Capacity of Agricultural Land in the Conditions of Climate Change – Case Study

Autorzy:

Podhrázská, Jana
Kučera, Josef
Karásek, Petr
Szturc, Jan
Konečná, Jana

Powiązania:

https://bibliotekanauki.pl/articles/1839537.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

climate change
infiltration capacity
rainfall simulator

Opis:

The water retention capacity of a territory is mainly defined by the land conditions, type of soil cover and manner of land management. The manifestations of the climate change reflect the need for better water capture from precipitation in agricultural catchment areas. The effect of the soil cover on the water retention capacity was studied in two localities with different soil types (chernozem and cambisol). The results have shown significant effects of permanent grass covers on increasing the water retention capacity. The mean retention capacity measured at permanent grass covers was 1.7-fold higher than at arable land. The soil type did not play a significant role. To some extent, the retention capacity is also influenced by the used agro-technology. After stubble-tillage, the water from precipitation was better infiltrated by arable land than by permanent grass cover. However, during a major part of the vegetation period, arable land is at the rest, and the short-term increase of its retention capacity has no impact on the overall outcome.

Źródło:

Journal of Ecological Engineering; 2021, 22, 1; 258-266
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

The Impacts of Irrigation System on Agriculture: A Study Based on Porativupattu ds Division

Autorzy:

Mathanraj, S.

Powiązania:

https://bibliotekanauki.pl/articles/1178797.pdf

Data publikacji:

2017

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Agriculture
Irrigation
Paddy production
Rainfall
Vegetables

Opis:

Irrigation is the artificial application of water to the land or soil. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and re-vegetation of disturbed soils in dry areas and during periods of inadequate rainfall. Paddy production is the main agriculture of this area, has good climate, well irrigation and soil structure for paddy production. Both temperature and rainfall are the main climatic factors that affected the paddy cultivation. The main objective of the study is to find out the agricultural activities especially paddy cultivation. The sampling method has been used to collect the primary data through the questionnaire survey from 100 households and secondary data has been gathered form District Secretariat, Irrigation Report, and published research reports. MS Excel was utilized for the study to examine the changes of paddy production and other agriculture due to the irrigation water. As the result, paddy production was very high in the Maha season but it was low in Yala season because of the less rainfall and irrigation process. In addition, the highland crops were cultivated around 396 hectare in this area. Whatever, when compere with vegetable production, this was very low and the vegetable production was very high. Thus, these area people cultivate different kind of crops for their economy but have the less production. Therefore, the improvement of irrigation and other water body help to make much production can be produced more in highland crops cultivation. Proper management and better agricultural practices cause to the high production in future.

Źródło:

World Scientific News; 2017, 90; 127-137
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

Empedocles and the Other Physiologists in Aristotle’s Physics II 8

Autorzy:

Giardina, Giovanna R.

Powiązania:

https://bibliotekanauki.pl/articles/633456.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

Presocratics
mechanism
physics
teleology
rainfall
Aristotle

Opis:

In this paper I propose to show: 1) that in Phys. II 8 Aristotle takes Empedocles as a paradigm for a theoretical position common to all philosophers who preceded him: the view that materialism implies a mechanistic explanation of natural becoming; and 2) that, since Empedocles is regarded as a philosopher who clearly expresses the position of all mechanistic materialists, Aristotle builds his teleological arguments precisely to refute him. Indeed, Aristotle believes that refuting the arguments of Empedocles – the champion of mechanism – means refuting the mechanistic theory itself. In order to illustrate this point, I will discuss some passages from Phys. II 8, while also turning to consider the Neoplatonic commentators on Aristotle’s Physics. I will then endeavour to explain why in 198b19 ff. Aristotle formulates the argument of rain, which has attracted so much attention from scholars of the Physics: I will consider whether Aristotle believes that rain serves a purpose, contrary to what he claims with regard to meteorological phenomena in Meteorologica.

Źródło:

Peitho. Examina Antiqua; 2016, 7, 1; 13-24
2082-7539

Pojawia się w:

Peitho. Examina Antiqua

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Czasowo-przestrzenne zróżnicowanie opadów atmosferycznych we Wrocławiu
Space-time distribution of precipitation in the city of Wroclaw

Autorzy:

Kotowski, A.
Dancewicz, A.
Kaźmierczak, B.

Powiązania:

https://bibliotekanauki.pl/articles/237309.pdf

Data publikacji:

2010

Wydawca:

Polskie Zrzeszenie Inżynierów i Techników Sanitarnych

Tematy:

opad deszczu
wysokość opadu
intensywność opadu
sieć pomiarowa
rainfall
precipitation amount
rainfall intensity
network of gauging stations

Opis:

Przeprowadzone badania czasowo-przestrzennego zróżnicowania opadów we Wrocławiu na podstawie wieloletnich pomiarów wykazały, że obecna sieć pomiarowo-obserwacyjna nie sprosta zapotrzebowaniu na informacje, niezbędne do projektowania bądź modernizacji, w tym modelowania hydrodynamicznego, systemów odwodnieniowych. Dotyczy to zwłaszcza intensywnych opadów krótkotrwałych stwarzających duże zagrożenie funkcjonowania kanalizacji deszczowej i ogólnospławnej. W pracy wykazano znaczne różnice ilościowe wysokości i intensywności opadów w różnych rejonach Wrocławia. W szczególności w rejonie stacji meteorologicznej Wrocław-Strachowice (na zachodzie miasta) występują wyższe wartości natężeń opadów o ok. 20% w stosunku do rejonu stacji Wrocław-Swojec (na wschodzie). Wnioskowanie oparte na materiałach pochodzących z dwóch stacji może zatem powodować niedoszacowanie natężeń opadów w rejonach północnym i południowym miasta, na co wskazują wyższe wartości opadów dobowych na Psim Polu czy Oporowie. Należy zatem zwiększyć liczbę stacji automatycznie rejestrujących wysokość opadów w czasie, co w efekcie przyczyni się do lepszej ochrony całej aglomeracji wrocławskiej przed lokalnymi wylewami z kanalizacji czy podtopieniami.
Analysis of the space-time distribution of precipitation for the city of Wroclaw obtained from many years' measurements has demonstrated that the existing net-work of gauging stations fails to provide reliable data for the design or modernization, and primarily for the hydrodynamic modeling of draining systems. This finding holds true particularly for high-intensity rainfalls of a short duration, as they pose a real threat to the functioning of the storm water drain and combined sewage systems. The results of the study have revealed considerable differences in the amount and intensity of precipitation between particular parts of the city. Within the area of the Wroclaw-Strachowice station (in the western part of the city) the amount of precipitation received was by approx. 20% higher as compared to that within the Wroclaw-Swojec station (in the eastern part of the city). Drawing conclusions based on the data obtained from the two meteorological stations may lead to the underestimation of the precipitation amounts received in the northern and southern parts of the city, as can be inferred from the higher values of daily precipitation amounts measured in Wroclaw-Psie Pole and Wroclaw-Oporów. It is therefore recommendable to increase the number of stations that will provide automatic records of the precipitation amounts received with time. This will guarantee a more efficient protection of the municipality of Wroclaw against local flooding or outflow from the sewerage system.

Źródło:

Ochrona Środowiska; 2010, 32, 4; 37-46
1230-6169

Pojawia się w:

Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Laboratory determination of potential interception of young deciduous trees during low-intense precipitation

Autorzy:

Klamerus-Iwan, A.
Sporysz, M.

Powiązania:

https://bibliotekanauki.pl/articles/38420.pdf

Data publikacji:

2014

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

deciduous tree
rainfall
intensity
simulated rainfall
potential interception
raindrop size
Fagus sylvatica
Quercus robur
laboratory determination
precipitation

Opis:

The research issue focuses on potential interception, which is the maximum amount of water that can be stored on plant surface. Tests under controlled conditions remain the best way to enhance knowledge on interception determinants in forest communities. Such tests can provide data for identification of mathematical models based on ecological criteria. The study presented in this paper concerned tree interception under simulated rain in a range from 2 to 11 mm/h. To perform the experiment a set of sprinklers was designed and built. The study included two deciduous species: beech (Fagus sylvatica L.) and oak (Quercus robur L.). Descriptive characteristic and nonlinear estimation were suggested for the obtained data. Interdependence of potential interception, the intensity of rain and the size of raindrops were described using exponential equation. The intensity and drop size of simulated rainfall significantly influence the obtained values of potential interception. Data analysis shows a decrease of interception value with an increase of intensity of simulated rainfall for both analysed species. Every run of the experiment that differed in the intensity and size of raindrops reached an individual level of potential interception and time needed to realize it. The formation of ability of plants to intercept water depends both on the dynamics and the time of spraying.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2014, 56, 1
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Effects of Changes in Temperature, Rainfall and Relative Humidity on Banana Production in Ondo State, Nigeria

Autorzy:

Salau, Opeyemi R.
Momoh, Marvelous
Olaleye, Oluwatosin A.
Owoeye, Rufus S.

Powiązania:

https://bibliotekanauki.pl/articles/1190205.pdf

Data publikacji:

2016

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Banana
Plantain
Rainfall
Temperature
Agriculture
Relative Humidity

Opis:

The effects of climate change on agriculture may have strong impacts on the world’s food economy and are likely to threaten both the welfare of the world’s population and the economic development of the global society. Hence, the impacts of changes in important climate variables like temperature, rainfall and relative humidity on the production of a major food commodity called banana is investigated using the data obtained within 1998-2012 from Ondo State, Nigeria. The results suggest that excessive rainfall and extremely high temperature can reduce banana productivity while the production is also small when both rainfall and temperature are very low with poor humidity. On the average, the findings show that a mean temperature of about 26 °C and average rainfall of around 1891mm with relative humidity of approximately 77% will lead to good annual banana production above 61,000 tons in Ondo State. Since these climate variables will fluctuate under a future climate change condition, the coping strategies recommended for farmers in the area and in similar places might include planting of drought- and disease resistant banana types, monitoring of weather conditions, use of irrigation and chemicals. Improved storage facilities are also important while transportation of banana should be done under controlled conditions to avoid spoiling the quality.

Źródło:

World Scientific News; 2016, 44; 143-154
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Organic compounds in rainfall at Hornsund, SW Spitsbergen: qualitative results

Autorzy:

Krawczyk, Wiesława Ewa
Skręt, Urszula

Powiązania:

https://bibliotekanauki.pl/articles/2052041.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Arctic
Svalbard
Hornsund
organic compounds
rainfall
chemistry

Źródło:

Polish Polar Research; 2005, 26, 1; 65-76
0138-0338
2081-8262

Pojawia się w:

Polish Polar Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

The analysis of the El Niño phenomenon in the East Nusa Tenggara Province, Indonesia

Autorzy:

Karuniasa, Mahawan
Pambudi, Priyaji Agung

Powiązania:

https://bibliotekanauki.pl/articles/2073753.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

climate
communities
drought
El Nino
freshwater
rainfall

Opis:

Climate change causes various events, such as El Niño , and we experience their larger frequency. This study based on a quantitative approach uses observation data from the Umbu Mehang Kunda Meteorological Station and the Ocean Niño Index (ONI). As a result, East Sumba, which has an arid climate, has more challenges in dealing with drought and water deficits during El Niño. This study identifies rainfall when the El Niño phenomenon takes place in East Sumba through data contributing to the ONI value and dry day series from 1982 to 2019. The analysis was carried out by reviewing these data descriptively and supported by previous literature studies. The research found that there was a decrease in the accumulative total rainfall in El Niño years. The annual rainfall in the last six El Niño events is lower than the annual rainfall in the first six El Niño events. The dry day series is dominated by an extreme drought (>60 days) which generally occurs from July to October. This drought clearly has a major impact on livelihoods and causes difficulties in agriculture as well as access to freshwater. This results in crop failure, food shortages, and decreased income. The phenomenon triggers price inflation in the market and potential increase in poverty, hunger, and pushes the country further away from the first and second Sustainable Development Goals. This phenomenon and problems related to it need to be dealt with by multistakeholders.

Źródło:

Journal of Water and Land Development; 2022, 52; 180--185
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 25.

Tytuł:

An analysis of short duration high-intensity rainfall events in Cracow area

Autorzy:

Jarosińska, E.

Powiązania:

https://bibliotekanauki.pl/articles/101341.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

urban catchment
flooding
rainfall intensity
Chomicz scale

Opis:

The study involves a preliminary analysis of short-duration high-intensity rainfall events in the area of Cracow. The events were selected from a 2-year data record from the MPWiK (Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji [Municipal Water and Sewage Company]) in Cracow. A spatial analysis was carried out by comparing rainfall events with highest single totals which occurred at the same time at all observed precipitation stations. Extracted were nine cases from the data record of 2013 and ten from the data record of 2014. Each of the analysed events was classified according to the Chomicz scale for rainfall intensity in order to distinguish maximum rainfalls, in particular of the following types: heavy rainfalls, rainstorms and torrential rains. Additionally, observed were cases of the most unfavourable rainfall events, i.e. ones with the highest totals in the observed year. In both 2013 and 2014, certain areas in Cracow were observed to be characterised by a pattern of repeating rainfall types. Also, a change in the rainfall category was observed from lower into higher and reverse in certain areas represented by the same gauging stations. At the stations located in varying distances within one urban area of Cracow, the intensity of rainfall varied from rainstorm A1 to torrential rain B1.

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2018, III/1; 575-588
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 26.

Tytuł:

Simulated impacts of rainfall extremes on yield responses of various barley varieties in a temperate region

Autorzy:

Yoon, C.Y.
Kim, S.
An, K.N.

Powiązania:

https://bibliotekanauki.pl/articles/2083065.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Instytut Agrofizyki PAN

Tematy:

barley
rainfall
simulation
food cost
grain
yield

Opis:

As population rises, more people need to be fed. With increasing income, the potential exists for increases in the demand for cereals (i.e., barley). Since barley has a high level of tolerance to environmental stressors, this crop has been recommended as a potential crop for food security in marginal environments. In this study, a crop growth Agricultural Land Management Alternatives with Numerical Assessment Criteria model, was parameterized and used to simulate the yields of two barley types grown in a temperate environment at a latitude of 35°N. In order to apply this crop model to barley, 19 years of field data were used to model calibration and validation. As a result, the ALMANAC model accurately simulated yields for both barley types. The validated model was used to predict yields under three diverse seasonal rainfall scenarios associated with different patterns of the Central Pacific El Niño influence. According to the simulation results, excessively high seasonal rainfall decreased barley yields. Crop price and annual revenue of the two barley types were also evaluated using a non-linear regression model. For the malt type, the food price was higher with a higher rainfall, while naked barley had a higher revenue under the conditions of a lower rainfall.

Źródło:

International Agrophysics; 2021, 35, 2; 119-129
0236-8722

Pojawia się w:

International Agrophysics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

Temperature and Rainfall Trend in Alaknanda Valley Srinagar Garhwal, Uttarakhand, India

Autorzy:

Negi, R. S.
Sagar Gautam, Alok Sagar
Singh, Santosh

Powiązania:

https://bibliotekanauki.pl/articles/1164126.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Climate Change
Meteorological data
Rainfall
Temperature
Trend

Opis:

The rainfall and temperatures are the most important parameters among the atmosphere as these parameters decide the ecological situation of the specific area, which affects the agricultural productivity. The temperature, and rainfall trends are analysed for meteorological data of Automatic Weather Station (AWS), was installed September 2009 with 22 meteorological parameters in the Department of Rural Technology, HNB Garhwal, University, Srinagar Garhwal, and Uttarakhand. In the study assess the seven-year change in temperature and rainfall has been examination by linear tread analysis. It is observed that in velley of Srinagar Garhwal, Uttarakhand, coefficient of variation for mean temperature for Srinagar Garhwal Valley is highest in the month of February and lowest in the month of August. This means that mean temperature is most stable in the month of August and total monthly rainfall observed highest in the month of November and minimum for the month of July. This shows that rainfall is more stable in the month of July and is more variable in the month of November for the Valley.

Źródło:

World Scientific News; 2018, 108; 207-214
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Assessment of hydrological alteration from 1996 to 2017 in Brantas watershed, East Java, Indonesia

Autorzy:

Indarto, Indarto
Andiananta Pradana, Hendra
Wahyuningsih, Sri
Umam, Muhammad K.

Powiązania:

https://bibliotekanauki.pl/articles/293246.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Brantas watershed
hydrological alteration
land use
rainfall

Opis:

Climate, land use, and land cover change can propagate alteration to the watershed environment. The interaction between natural and human activities probably accelerates the change, a phenomenon that will generate serious environmental problems. This study aims to evaluate the change in the hydrological regime due to natural and human-induced processes. The study was conducted in Brantas watershed, Indonesia, which is the largest watershed in East Java. This area is populated by more than 8 million inhabitants and is the most urbanized area in the region. An analysis of rainfall time series use to shows the change in natural phenomena. Two land-use maps at different time intervals were used to compare the rapid development of urbanization, and the discharge from two outlets of the sub-watersheds was employed to assess hydrological changes. The indicator of hydrological alteration (IHA) method was used to perform the analysis. The daily discharge data are from 1996 to 2017. The research results show an increase in flow (monthly, 1-day, 3-day, 7-day, 30-day, and 90-day flows) in the two sub-watersheds (Ploso and Kertosono) from the pre-period (1996–2006) to the post-period (2007–2017).

Źródło:

Journal of Water and Land Development; 2020, 46; 121-130
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

The Water Requirements of Grapevines (Vitis vinifera L.) Under Climatic Conditions of Central Poland

Autorzy:

Rolbiecki, Stanisław
Jagosz, Barbara
Stachowski, Piotr
Rolbiecki, Roman

Powiązania:

https://bibliotekanauki.pl/articles/2069915.pdf

Data publikacji:

2021

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

climate changes
evapotranspiration
irrigation
precipitation
rainfall deficit

Opis:

The purpose of this study was to estimate the water needs of grapevines in central Poland in 1981-2010. Water needs were calculated by the plant coefficients, which were assumed according to the Doorenbos and Pruitt method. Reference evapotranspiration was assessed by the Blaney-Criddle’s equation, modified for Polish conditions. Rainfall deficit with the occurrence probability of normal, medium dry and very dry years was determined by the Ostromęcki’s method. Water needs of grapevines during the growing season was 434 mm. Upward time trend in the water needs both in the periods May-October and June-August was estimated. Temporal variability in the water needs was significant for most of the provinces. The rainfall deficit was recorded with the occurrence probability of normal as well as medium or very dry years in the entire study area. Due to climate changes, vineyards will require irrigation in the near future. This research significantly broadens and refines the knowledge about the water needs of grapevines in central Poland, which will allow the design of resource-efficient irrigation programs for grapevines in the studied region of Poland.

Źródło:

Rocznik Ochrona Środowiska; 2021, 23; 731--743
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 30.

Tytuł:

Impact of upstream sediment inflow on headcut morphodynamics

Autorzy:

Wells, R. R.
Bennett, S. J.
Alonso, C. V.

Powiązania:

https://bibliotekanauki.pl/articles/295198.pdf

Data publikacji:

2011

Wydawca:

Stowarzyszenie Geomorfologów Polskich

Tematy:

headcuts
overland flow
simulated rainfall
soil erosion

Opis:

Headcut erosion can severely accelerate soil loss in upland concentrated flows and lead to significant soil degradation in agricultural areas. Previous experimental work has demonstrated that actively migrating headcuts display systematic morphodynamic behavior, and impinging jet theory can provide an excellent theoretical foundation for this erosional phenomenon. This research sought to examine systematically the effect of an upstream sediment inflow on the morphodynamics of actively migrating headcuts in upland concentrated flows. Using a specially designed experimental facility, actively migrating headcuts were allowed to develop, and then subjected to an upstream sediment load composed of sand. As the upstream sediment feed rate increased, the size and migration rate of the headcut decreased markedly, but sediment discharge was less affected. The headcut erosion process was arrested as sediment inflow rates increased above a threshold value. As sediment feed rate upstream of the headcut increased, sediment size fraction downstream of the headcut also increased. This research suggests that headcut erosion can be greatly modulated by an upstream sediment source, further complicating the prediction of soil erosion on upland areas.

Źródło:

Landform Analysis; 2011, 17; 225-227
1429-799X

Pojawia się w:

Landform Analysis

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Water Needs of the Ash-Leaved Maple (Acer negundo L.) at the Period over Three Years after Reclamation in Different Regions of Poland

Autorzy:

Rolbiecki, Stanisław
Rolbiecki, Roman
Jagosz, Barbara
Kasperska-Wołowicz, Wiesława
Ptach, Wiesław
Stachowski, Piotr
Figas, Anna
Grybauskiene, Vilda
Klimek, Andrzej
Podsiadło, Cezary

Powiązania:

https://bibliotekanauki.pl/articles/124919.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

irrigation
potential evapotranspiration
rainfall deficiencies
water requirements

Opis:

The ash-leaved maple (Acer negundo L.) has low habitat requirements, which is why this species is often used in the reclamation of industrial areas. The development of the reclamation plantings depends on the optimal water soil conditions that can be controlled by watering treatments. However, the use of irrigation requires determining the water needs of the cultivated species. The objective of the study was to evaluate the water needs of the ash-leaved maple in the reclamation plantings, in the period of over three years after planting. The water needs of the ash-leaved maple were determined using the crop coefficients method. Potential evapotranspiration was calculated using the Blaney-Criddle’s formula that was modified for the Polish conditions by Żakowicz. The water needs of the ash-leaved maple were assessed for five agro-climatic regions of Poland, in the years 1981-2010. The water needs of the ash-leaved maple in the growing period (April-October) were the highest in the C-E (638 mm) and C-N-W (637 mm) regions, and the lowest in the N-E (598 mm) and S-E (601 mm) regions. In July, the highest water needs were noted in the C-N-W region (149 mm) and the lowest in the S-W region (129 mm). In the studied thirty-years period, there was a significant upward trend in the water needs of the ash-leaved maple both during the growing season (except for the C-N-W region) and in July, in all the considered regions.

Źródło:

Journal of Ecological Engineering; 2019, 20, 4; 69-75
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Estimation of standard duration maximum rainfall by using regression models

Autorzy:

Yerdelen, Cahit
Asikoglu, Ömer Levend
Abdelkader, Mohamed
Eris, Ebru

Powiązania:

https://bibliotekanauki.pl/articles/1841938.pdf

Data publikacji:

2021

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Eastern Black Sea Region
Marmara Region
regression model
standard duration maximum rainfall
temporal distribution of maximum daily rainfall

Opis:

Gauging stations of meteorological networks generally record rainfall on a daily basis. However, sub-daily rainfall observations are required for modelling flood control structures, or urban drainage systems. In this respect, determination of temporal distribution of daily rainfall, and estimation of standard duration of rainfall are significant in hydrological studies. Although sub-daily rainfall gauges are present at meteorological networks, especially in the developing countries, their number is very low compared to the gauges that record daily rainfall. This study aims at developing a method for estimating temporal distribution of maximum daily rainfall, and hence for generating maximum rainfall envelope curves. For this purpose, the standard duration of rainfall was examined. Among various regression methods, it was determined that the temporal distribution of 24-hour rainfall successfully fits the logarithmic model. The logarithmic model’s regression coefficients (named a and b) were then linked to the geographic and meteorological characteristics of the gauging stations. The developed model was applied to 47 stations located at two distinct geographical regions: the Marmara Sea Region and Eastern Black Sea Region, Turkey. Various statistical criteria were used to test the method's accuracy, and the proposed model provided successful results. For instance, the RMSE values of the regression coefficients a and b in Marmara Regions are 0.004 and 0.027. On the other hand, RMSE values are 0.007 and 0.02 for Eastern Black Sea Region.

Źródło:

Journal of Water and Land Development; 2021, 50; 281-288
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Znormalizowane rozkłady warstwy opadu w czasie trwania deszczy na obszarze zlewni doświadczalnej w Warszawie
Normalized rainfall depth distributions during rainfalls in the area of experimental catchment in Warsaw

Autorzy:

Barszcz, M.

Powiązania:

https://bibliotekanauki.pl/articles/339590.pdf

Data publikacji:

2012

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

rozkład warstwy opadu deszczu
rozkłady DVWK i SCS Typ II
DVWK and SCSType II rainfall distributions
rainfall depth distribution

Opis:

W artykule przedstawiono wyniki analizy opadów deszczu pomierzonych na obszarze zlewni doświadczalnej Potoku Służewieckiego, położonej w południowej części Warszawy. Celem pracy było wyznaczenie znormalizowanych rozkładów warstwy opadu w czasie jego trwania. Rozkłady te przedstawiają skumulowane wartości warstwy opadu w odniesieniu do skumulowanych czasów jego trwania, które przyjęto jako wartości wynoszące 0, 10, 20, 30, 40, 50, 60, 70, 80, 90 i 100% czasu trwania deszczu. Do analizy wykorzystano 71 zdarzeń zarejestrowanych na trzech posterunkach opadowych (Okęcie, Usynów i Pyry). Warstwy opadu zarejestrowanych deszczy wynosiły od 1,0 do 81,5 mm, a czasy ich trwania - od 20 do 1000 min. Na podstawie ustalonych rozkładów wszystkich analizowanych deszczy obliczono, z zastosowaniem mediany, syntetyczny znormalizowany rozkład warstwy opadu w czasie jego trwania. Rozkład ten może być wykorzystany w procedurze wyznaczania hydrografów w badanej zlewni do obliczania rozkładu warstwy opadu w trakcie deszczu. Na podstawie przeprowadzonych analiz wykazano, że zróżnicowanie czasów trwania i warstw opadów rozpatrywanych deszczy nie miało wpływu na ich rozkłady. Syntetyczny znormalizowany rozkład, wyznaczony na analizowanym obszarze, porównano z rozkładami DVWK i SCS Typ II, opracowanymi odpowiednio na obszarze Niemiec i USA, i wykazano, że ich przebieg jest podobny. W przypadku braku rozkładu opracowanego lokalnie na obszarze kraju, w analizach projektowych może być stosowany ustalony syntetyczny znormalizowany rozkład warstwy opadu deszczu lub rozkłady DVWK i SCS Typ II.
The paper presents results of the analysis of rainfalls measured in the area of experimental catchment of the Potok Służewiecki, located in the southern part of Warsaw. The aim of this study was to calculate the normalized rainfall depth distributions during rainfalls. These rainfall distributions represent cumulative values of rainfall depth corresponding to cumulative times, which were assumed as 0, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100% of rainfall duration. Seventy one events measured at three rainfall gauges (Okęcie, Ursynów and Pyry) were used in the analysis. The measured rainfalls were characterised by rainfall depths ranging from 1.0 to 81.5 mm, and rainfall Dura tions from 20 to 1000 min. Normalized rainfall depth distributions were calculated for events recorded at the three rainfall gauges. Based on the established rainfall distributions for all analyzed rainfalls a synthetic normalized rainfall depth distribution was calculated using the median. The established distribution can be used in the procedure of calculating hydrographs in the studied catchment. The analyses showed also that different rainfall durations and rainfall depths of analyzed rainfalls did not affect rainfall distribution. The synthetic normalized rainfall distribution calculated for the analysed area was compared with rainfall distributions of DVWK and SCS Type II developed for areas of Germany and the USA, respectively. Graphical comparison of the three rainfall distributions showed a similar course (shape). In the absence of locally developed rainfall distribution in the country, the established synthetic normalized rainfall distribution or the DVWK and the SCS Type II rainfall distributions can be used in design analyses.

Źródło:

Woda-Środowisko-Obszary Wiejskie; 2012, 12, 3; 27-38
1642-8145

Pojawia się w:

Woda-Środowisko-Obszary Wiejskie

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Wykorzystanie eksperymentu terenowego w badaniach erozji wodnej gleb w zlewni Chwalimskiego Potoku (Pojezierze Drawskie, górna Parsęta)

Autorzy:

Majewski, Mikołaj

Powiązania:

https://bibliotekanauki.pl/articles/634072.pdf

Data publikacji:

2014

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

soil erosion, field experiment, simulated rainfall, rain simulator

Opis:

Application of a field experiment in soil erosion research in the Chwalimski Potok catchment (Drawskie Lakeland, upper Parsęta River)Stationary research upon soil erosion has been conducted in the Chwalimski Potok catchment since 2012 as a continuation of research started in 1994. In 2013 conducted two field experiments were conducted in order to evaluate the impact of high intensity rainfall on soil surface. The first experiment consisted of 5 and the second of 4 rainfall simulations. The rainfall was created by using a purpose-built rain simulator, consisting of 3 and 6 sprinklers placed around the testing plot. The paper focuses on the characterization of the course of these experiments. The achieved results compared with the results from the hydrological years 2012 and 2013 show that slope wash considerably increases during rainfall of high intensity and high amount.

Źródło:

Prace Geograficzne; 2014, 138
1644-3586

Pojawia się w:

Prace Geograficzne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Analiza średnich natężeń deszczów miarodajnych we Wrocławiu
Analysis of average design storm intensity for the city of Wroclaw

Autorzy:

Licznar, P.
Łomotowski, J.

Powiązania:

https://bibliotekanauki.pl/articles/236808.pdf

Data publikacji:

2005

Wydawca:

Polskie Zrzeszenie Inżynierów i Techników Sanitarnych

Tematy:

deszcz miarodajny
natężenie deszczu
design storm
rainfall intensity

Opis:

W pracy przedstawiono wyniki analizy natężeń deszczu zarejestrowanych w Obserwatorium Agro- i Hydrometeorologii Akademii Rolniczej we Wrocławiu (Swojec) w latach 1975-2002. W oparciu o przyjęte kryterium deszczu wyodrębniono, a następnie ustalono związki funkcyjne pomiędzy średnim natężeniem deszczu, czasem jego trwania oraz prawdopodobieństwem przewyższenia. Otrzymane wyniki porównano z modelem Wołoszyna i wzorem Błaszczyka. Wykazano, że podane w pracach Wołoszyna i Błaszczyka formuły zostały ustalone nie na podstawie analizy wartości średnich natężeń deszczu, ale na materiale, w którym zawarte były zarówno dane o maksymalnych natężeniach chwilowych, jak i maksymalnych średnich natężeniach deszczu.
The analysis covered rainfall intensities recorded at the Agro- and Hydrometeorological Station, Wroclaw University of Agriculture, Wrocław-Swojec in the time span of 1975 to 2002. On the basis of the adopted criteria, rain events were selected and the functional relations between average rainfall intensity, duration and exceeding probability were established. The results were compared with those obtained with the Wołoszyn model and Błaszczyk equation. It was demonstrated that the formulas derived by Wołoszyn and Błaszczyk were not based on the analysis of average rainfall intensities; they involved analyses of both maximal temporary and maximal average rainfall intensities.

Źródło:

Ochrona Środowiska; 2005, R. 27, nr 1, 1; 29-34
1230-6169

Pojawia się w:

Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

Infrared Sensor to Predict Atmospheric Visibility and Rainfall Rate

Autorzy:

Holejko, K.
Czarnecki, T.
Perlicki, K.

Powiązania:

https://bibliotekanauki.pl/articles/227162.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

light scattering
atmospheric visibility
rainfall rate
rain gauge

Opis:

The presented paper describes an instrument called Aurometer which was designed for both atmospheric visibility and rainfall rate measurement. The principle of operation of Aurometer is based on determining the amount of light scatteredby particles in the air that passes through the sample volume. The achieved results show that simultaneous estimation of the atmospheric visibility.

Źródło:

International Journal of Electronics and Telecommunications; 2013, 59, 2; 109-112
2300-1933

Pojawia się w:

International Journal of Electronics and Telecommunications

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

Reconstruction of rainfall region boundaries for the western region found by Dale (1959) in Peninsular Malaysia

Autorzy:

Hashim, Mohmadisa
Nayan, Nasir
Said, Zahid Mat
Setyowati, Dewi Liesnoor
Saleh, Yazid
Mahat, Hanifah
Koh, See L.

Powiązania:

https://bibliotekanauki.pl/articles/2073752.pdf

Data publikacji:

2022

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

GIS
isohyetal method
Peninsular Malaysia
rainfall region boundary

Opis:

Re-delimitation of rainfall regions plays an important role in determining the rainfall pattern of an area. This study aims to reconstruct the delimitation of rainfall regions for the western region of Peninsular Malaysia. This study involved only the collection of rainfall data at 133 stations from 1960 to 2010. These data were obtained from the Department of Irrigation and Drainage, Malaysia. The analysis methods applied include kriging, contouring and topology using a geographical information system. The results showed that the new delimitation of the western region has been formed with an area reduction of 10% compared to the original western region found by Dale. This is due to some areas in the western region have not received rainfall between 2540 and 2794 mm. The area that getting the rainfall between 2540 and 2794 mm is 46,413.6 km2, in contrast to the sized of Dale’s western region of 51,596.2 km2. The area that frequently getting rainfall of between 2540 and 2794 during 1960s to 2010 are Parit Buntar, Taiping, Kuala Kangsar, Ipoh, Teluk Intan, Tanjong Malim, Batang Kali, Cameron Highlands, Subang, Petaling Jaya, Klang, Kajang and Bangi. The new delimitation formed through this study can be used as a guide by the agencies that manage water resources in Perak, Selangor and Negeri Sembilan in planning a more efficient water supply system.

Źródło:

Journal of Water and Land Development; 2022, 52; 205--209
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

Niedobór i nadmiar opadów w okresie wegetacji średnio wczesnych odmian ziemniaka w Polsce (1971–2013)
Rainfall deficits and shortages during the growing seasons of medium early potato cultivars in Poland (1971–2013)

Autorzy:

Radzka, Elżbieta
Rymuza, Katarzyna
Lenartowicz, Tomasz

Powiązania:

https://bibliotekanauki.pl/articles/2199181.pdf

Data publikacji:

2016-12-30

Wydawca:

Instytut Hodowli i Aklimatyzacji Roślin

Tematy:

opady optymalne
ziemnaik
Polska
optimal rainfall
potato
Polska

Opis:

Celem pracy była ocena niedoboru i nadmiaru opadów w okresie wegetacji średnio wczesnych odmian ziemniaka, uprawianych w Polsce. Wykorzystano dane z czternastu stacji COBORU (1971–2013) dotyczące miesięcznej sumy opadów atmosferycznych (V–IX). Charakterystyki zaspokojenia potrzeb opadowych dokonano na podstawie różnic między wartościami miesięcznych sum opadów występujących w latach badań i wartościami uznanymi za optymalne. Na obszarze całego kraju niedobór opadów, z częstością przekraczającą 50%, występował w maju i sierpniu, a nadmiar w czerwcu. niedobory opadów najczęściej występowały w Kawęczynie, Szczecinie Dąbie oraz Chrząstowie. Nadmiary opadów najczęściej notowano w Karżniczce i Jeleniej Górze. Najwyższe średnie wartości niedoboru opadów notowano w sierpniu. Największy nadmiar opadów występował w czerwcu i wahał się od 6 mm w Kawęczynie do 24 mm w Jeleniej Górze. Największy niedobór opadów, w okresie wegetacji średnio wczesnych odmian ziemniaka w Polsce, notowano w ostatnim dziesięcioleciu (2001–2010).
The objective of the work was to assess the deficits and excesses of rainfall during the growing seasons of medium early potato cultivars grown in light soil in Poland. Data for analysis, that is monthly precipitation sums during the growing seasons of medium early potato cultivars (May-September), was obtained from fourteen COBORU (Research Centre for Cultivar Testing) experimental stations (1971–2013). Differences between monthly precipitation sums in the study years and optimum values were used to demonstrate how water needs of potato crop were met. Throughout Poland, rainfall deficits occurred at a frequency of over 50% in May and August whereas precipitation excesses were recorded in June only. Rainfall amounts were most frequently insufficient in Kawęczyn, Szczecin Dąbie and Chrząstowo. Precipitation excesses were recorded in Karżniczka and Jelenia Góra. The highest average precipitation deficit was noted in August, the highest excess precipitation — in June. It fluctuated between 6 mm in Kawęczyn and 24 mm in Jelenia Góra. The precipitation deficit, during the growing season of medium early potato in Poland, was found to be the greatest over the last decade (2000–2010).

Źródło:

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2016, 280; 61-70
0373-7837
2657-8913

Pojawia się w:

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

The influence of cloudiness on air temperature and precipitation on the territory of Poland (1951-2000)

Autorzy:

Żmudzka, Elwira
Owsiński, Jan

Powiązania:

https://bibliotekanauki.pl/articles/2030281.pdf

Data publikacji:

2008-06-01

Wydawca:

Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych

Tematy:

cloudiness
temperature
rainfall
atmospheric circulation
Polska
variability
relationships

Opis:

Analysis of time series was performed of cloudiness, air temperature and precipitation for the years 1951-2000, the data used representing lowland Poland. The properties of the temporal course of these elements of climate and the interrelations between their variability in time have been determined. The strength of dependence of precipitation and temperature upon the magnitude of cloudiness in the annual cycle has been assessed with the linear correlation coefficient. The essential climate-forming role of cloudiness has been confirmed. The magnitude of cloudiness over Poland explains up to 70% of variability of temperature and precipitation. These interrelations are the strongest in the warmer half of the year. Atmospheric circulation and cloudiness explain up to 85% of variability of the climate elements studied.

Źródło:

Miscellanea Geographica. Regional Studies on Development; 2008, 13; 89-103
0867-6046
2084-6118

Pojawia się w:

Miscellanea Geographica. Regional Studies on Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

The influences of meteorological and hydrological factors on the operation and performance of a semi-natural stormwater reservoir

Autorzy:

Wałęga, Andrzej
Młyński, Dariusz
Radecki-Pawlik, Artur

Powiązania:

https://bibliotekanauki.pl/articles/108597.pdf

Data publikacji:

2020

Wydawca:

Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy

Tematy:

storm reservoir
heavy rainfall
best management practices
infiltration

Opis:

The aim of this research was to determine the influences of meteorological and hydrogeological factors on the water level of a rainwater storage and infiltration reservoir. The examined reservoir is located in the urban and industrial area of Krakow, on ground owned by the Polish State Railways (PKP), Kraków-Bieżanów branch. We analyzed a range of climatic (precipitation and evaporation) and hydrological factors (water stage in the reservoir and groundwater level) and their inter-relationships to determine their influences on the water depth regime in the storage and infiltration reservoir. Based on our results, the increase in the water table level in the reservoir is connected with the increase in the groundwater level and it is observed in the spring and summer periods, when meltwater and stormwater enter the reservoir. At the end of July, the groundwater table level increases because of excessive rainfall events. Throughout the entire experimental period, the reservoir was fed by infiltering groundwater from the upper parts of the basin. The water depth averages in the reservoir were closely correlated with the average groundwater table levels, the sum of precipitation from the week prior to the date of the examination of water depth in the reservoir, and the sum of potential evaporation in the given week.

Źródło:

Meteorology Hydrology and Water Management. Research and Operational Applications; 2020, 8, 1; 28-34
2299-3835
2353-5652

Pojawia się w:

Meteorology Hydrology and Water Management. Research and Operational Applications

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

The evaluation of weekly extended range river basin rainfall forecasts and a new bias correction mechanism for flood management in India

Autorzy:

Guhathakurta, Pulak
Prasad, Ashwini Kumar
Chattyopadhyay, Rajib
Sangwan, Neha
Wagh, Nilesh
Pattanaik, D. R.
Pai, D. S.
Mohapatra, M.

Powiązania:

https://bibliotekanauki.pl/articles/2058418.pdf

Data publikacji:

2022

Wydawca:

Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy

Tematy:

extended range prediction
rainfall bias correction
flood management

Opis:

Operational extended range forecasts are being disseminated once every week by the India Meteorological Department (IMD) for several sectorial applications. These forecasts show a reduction in amplitude and variance as a function of lead-time. Such reductions in variance can be due to several physical factors: inherent forecast model bias, a problem relating to initial conditions, leaddependent statistical biases, etc. A week-by-week analysis shows that such biases are not systematic. Rainfall forecasts are underestimated in some regions, while others overestimate rainfall amplitude. To correct the bias in the extended range weekly averaged forecast, a statistical post-processing method (normal ratio correction) is proposed to make the outlook more valuable at a longer lead-time. The correction method is based on the World Meteorological Organization (WMO) technical guidance on rainfall estimation and is also shown to be useful for rainfall forecasts. In this analysis, we evaluate the extended range forecast skill at the river sub-basin-scale and show that there are several river sub-basins over the central Indian region where the correction has improved the model forecast in the one to two-week range. Although this analysis was tailored toward making the river basins and sub-basins of India more readily realizable for flood forecasters, it can be used for any administrative boundaries such as block, district, or state-level requirements.

Źródło:

Meteorology Hydrology and Water Management. Research and Operational Applications; 2022, 10, 1; 1--25
2299-3835
2353-5652

Pojawia się w:

Meteorology Hydrology and Water Management. Research and Operational Applications

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Evaluation of Rainfall-Runoff Erosivity Factor for Cameron Highlands, Pahang, Malaysia

Autorzy:

Abdulkadir, T. S.
Mustafa, M. R.
Yusof, K. W.
Hashim, A. M.

Powiązania:

https://bibliotekanauki.pl/articles/123050.pdf

Data publikacji:

2016

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

rainfall
erosivity factor
soil erosion
USLE/RUSLE
runoff

Opis:

Rainfall-runoff is the active agent of soil erosion which often resulted in land degradation and water quality deterioration. Its aggressiveness to induce erosion is usually termed as rainfall erosivity index or factor (R). R-factor is one of the factors to be parameterized in the evaluation of soil loss using the Universal Soil Loss Equation and its reversed versions (USLE/RUSLE). The computation of accurate R-factor for a particular watershed requires high temporal resolution rainfall (pluviograph) data with less than 30-minutes intensities for at least 20 yrs, which is available only in a few regions of the world. As a result, various simplified models have been proposed by researchers to evaluate R-factor using readily available daily, monthly or annual precipitation data. This study is thus aimed at estimating R-factor and to establish an approximate relationship between R-factor and rainfall for subsequent usage in the estimation of soil loss in Cameron highlands watershed. The results of the analysis showed that the least and peak (critical) R-factors occurred in the months of January and April with 660.82 and 2399.18 MJ mm ha^-1 h^-1year-1 respectively. Also, it was observed that erosivity power starts to increase from the month of January through April before started falling in the month of July. The monthly and annual peaks (critical periods) may be attributed to increased rainfall amount due to climate change which in turn resulted to increased aggressiveness of rains to cause erosion in the study area. The correlation coefficient of 0.985 showed that there was a strong relationship rainfall and R-factor.

Źródło:

Journal of Ecological Engineering; 2016, 17, 3; 1-8
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

Impact of Landslides Induced by the 2018 Palu Earthquake on Flash Flood in Bangga River Basin, Sulawesi, Indonesia

Autorzy:

Tunas, I. Gede
Tanga, Arody
Oktavia, Siti Rahmi

Powiązania:

https://bibliotekanauki.pl/articles/125089.pdf

Data publikacji:

2020

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

flash flood
heavy rainfall
landslide
watershed
Palu
earthquake

Opis:

High magnitude flash flood has occurred several times in some areas in Central Sulawesi Province after the 2018 Palu Earthquake, one of them is in the Bangga River, Sigi Regency, Indonesia. It has caused massive impacts such as damaging agricultural and plantation areas and submerging public facilities and infrastructure and even causing fatalities. The flood carries a variety of materials, especially high concentration sediments which are thought to originate from eroded soils due to landslides induced by a 7.5 magnitude earthquake. These materials are eroded and transported by the flow at the upstream watershed due to heavy rainfall. This study intends to investigate the potential of landslides, factors that trigger floods and increased flooding after the earthquake. This research was conducted by investigating the landslides potency based on field surveys and interpretation of the latest satellite imagery, analyzing the characteristics of rainfall as a trigger for flooding, and predicting the flood potency as the primary impact of these two factors. Rainfall-flood transformation was simulated with the HEC-HMS Model, one of the freeware semi-distributed models commonly used in hydrological analysis. The model input is the configuration of river networks generated from the National DEM (DEMNAS), hourly rainfall during floods and other watershed parameters such as land cover, soil types and river slope. The similar simulation was also carried out on the condition of the watershed before the earthquake. Based on the results of the analysis, It can be inferred that flash floods in the Bangga River are mainly caused by heavy rainfall with long duration and landslide areas in the upper watershed triggered by the 2018 Palu Earthquake with an area of approximately 10.8 km². The greatest depth of rainfall as a trigger for flooding is 30.4 mm with a duration of 8 hours. The results of the study also showed that landslides in the upper watershed could increase the peak flood by 33.33% from 118.56 m³/s to 158.08 m³/s for conditions before and after the earthquake.

Źródło:

Journal of Ecological Engineering; 2020, 21, 2; 190-200
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 44.

Tytuł:

Wykorzystanie sztucznych sieci neuronowych w wymiarowaniu zbiorników retencyjnych
Using artificial neural networks for dimensioning of storage reservoirs

Autorzy:

Pochwat, K.
Słyś, D.

Powiązania:

https://bibliotekanauki.pl/articles/126253.pdf

Data publikacji:

2016

Wydawca:

Towarzystwo Chemii i Inżynierii Ekologicznej

Tematy:

zbiorniki retencyjne
opad miarodajny
rozkład opadu deszczu
wymiarowanie zbiorników retencyjnych
storage reservoir
critical rainfall
rainfall distribution
dimensioning of the storage reservoir

Opis:

Kanalizacyjne zbiorniki retencyjne są obiektami służącymi między innymi do redukowania przepływu strumienia objętości ścieków w systemach kanalizacyjnych. Ich główną zaletą jest możliwość zwiększenia retencji w systemie, co w efekcie wpływa na poprawę bezpieczeństwa hydraulicznego zlewni poprzez ograniczenie możliwości wylania się ścieków i powstania zjawiska „powodzi miejskich”. Coraz powszechniejsze użycie obiektów retencyjnych, obserwowane zmiany klimatu oraz rozwój dostępnych narzędzi softwarowych powodują konieczność aktualizowania metod ich wymiarowania. Dotychczas najczęściej wykorzystywane w tym celu są formuły analityczne oraz narzędzia do modelowania hydrodynamicznego. W obu przypadkach podstawą do właściwego zaprojektowania obiektu retencyjnego jest wybór miarodajnego opadu deszczu o określonym prawdopodobieństwie wystąpienia i odpowiedniej długości czasu trwania, który powoduje krytyczny przepływ ścieków w systemie kanalizacyjnym i wymaga zastosowania największej niezbędnej pojemności retencyjnej zbiornika. Celem artykułu jest wykonanie analizy możliwości wykorzystania sztucznych sieci neuronowych we wstępnym szacowaniu miarodajnej długości czasu deszczu. Jej wartość jest niezbędna w procesie modelowania hydrodynamicznego funkcjonowania systemu i wyznaczenia niezbędnej pojemności retencyjnej zbiornika. W badaniach do budowy modelu sztucznej sieci neuronowej wykorzystano teorię planowania doświadczeń oraz pakiet Statistica.
Storage reservoirs are objects which serving inter alia, to reducing the volume of wastewater flow in sewer systems. Their main advantage is the possibility to increase retention in the system, which in turn improves hydraulic safety by reducing the possibility of the node flooding and the emergence of the phenomenon of "urban flooding". An increasingly common use of storage reservoirs, observed climate change and the development of available software tools makes it necessary to update the methods of its dimensioning. So far, the most well-known calculation procedures in this regard is the use of analytical formulas and tools for hydrodynamic modeling the functioning sewage systems. In both cases, the basis for the designing of the retention facility is choosing a appropriate rainfalls which a certain probability of occurrence, and appropriate duration, which causes the critical flow of rainwaters in the sewer system and requires the use of the most necessary storage capacity of the reservoir. The purpose of this article is the analyze of the possibility of using artificial neural networks in the preliminary estimation of the length of duration the critical rainfall. Its value is essential in the process of hydrodynamic modeling of the system and determine the necessary storage capacity of the reservoir. In a study for the construction of an artificial neural network model used in the theory of planning experience and Statistica package.

Źródło:

Proceedings of ECOpole; 2016, 10, 2; 757-766
1898-617X
2084-4557

Pojawia się w:

Proceedings of ECOpole

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 45.

Tytuł:

Analysis of distribution of precipitation duration and amounts in Legnica in the period of 1966–2015
Analiza rozkładów długości trwania i wielkości opadów w Legnicy w latach 1966–2015

Autorzy:

Jakubczyk, Teresa

Powiązania:

https://bibliotekanauki.pl/articles/293381.pdf

Data publikacji:

2019

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

analysis of distributions
Mann–Kendall test
precipitation
rainfall conditions
rainfall variability
analiza rozkładów
opady
test Manna-Kendalla
warunki opadowe
zmienność opadów

Opis:

The paper presents the results of analysis of duration of precipitation sequences and the amounts of precipitation in individual sequences in Legnica. The study was aimed at an analysis of potential trends and regularities in atmospheric precipitations over the period of 1966–2015. On their basis a prediction attempt was made for trends in subsequent years. The analysis was made by fitting data to suitable distributions – the Weibull distribution for diurnal sums in sequences and the Pascal distribution for sequence durations, and then by analysing the variation of the particular indices such the mean value, variance and quartiles. The analysis was performed for five six-week periods in a year, from spring to late autumn, analysed in consecutive five-year periods. The trends of the analysed indices, observed over the fifty-year period, are not statistically significant, which indicates stability of precipitation conditions over the last half-century.
W pracy przedstawiono wyniki analiz rozkładów długości trwania sekwencji opadowych oraz wielkości opadów w poszczególnych sekwencjach w Legnicy. Badania miały na celu przeprowadzenie analizy ewentualnych tendencji i regularności w opadach atmosferycznych w okresie 1966–2015. Na ich podstawie podjęto próbę predykcji dla tendencji w kolejnych latach. Analizę wykonano przez dopasowanie do danych odpowiednich rozkładów – rozkładu Weibulla do sum dobowych w sekwencjach oraz rozkładu Pascala do długości sekwencji, a następnie przez zbadanie zmienności poszczególnych wskaźników, takich jak średnia, wariancja i kwartyle. Analiza została przeprowadzona w odniesieniu do pięciu sześciotygodniowych okresów w ciągu roku od wczesnej wiosny do późnej jesieni, rozpatrywanych w kolejnych pięcioleciach. Tendencje badanych wskaźników zaobserwowane na przestrzeni pięćdziesięciolecia nie są istotne statystycznie, co świadczy o stabilności zjawiska opadów w ostatnim pięćdziesięcioleciu.

Źródło:

Journal of Water and Land Development; 2019, 41; 69-76
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:

Ocena struktury czasowo-przestrzennej opadów z wkorzystaniem wybranych wskaźników do identyfikacji zdarzeń ekstremalnych
Evaluation of spatio-temporal rainfall patterns with selected indicators for extreme event identification

Autorzy:

Szalińska, W.
Otop, I.

Powiązania:

https://bibliotekanauki.pl/articles/338269.pdf

Data publikacji:

2012

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

opad
wartości wskaźnikowe
zdarzenia ekstremalne
extreme events
indicators
rainfall

Opis:

Intensywne opady mogą powodować zagrożenie oraz poważne skutki hydrologiczne (powodzie, wezbrania), zarówno lokalnie, jak i w skali regionalnej. Stopień zagrożenia powodowanego opadami zależy od wielu czynników, m.in. od wysokości opadów, czasu trwania, zasięgu przestrzennego oraz sposobu zagospodarowania danego obszaru. Celem badań było opracowanie zbioru wartości wskaźnikowych dobowych sum opadów, umożliwiających ocenę struktury czasowo-przestrzennej opadów pod kątem identyfikacji zdarzeń ekstremalnych, wpływających na zagrożenie hydrologiczne. Opracowany zbiór wskaźników obejmował wskaźniki aprioryczne i statystyczne. Wartości progowe wskaźników statystycznych wyznaczono na podstawie wieloletnich danych obserwacyjnych, analizując sumy, czas trwania i rozkład przestrzenny opadów. Wybrany zbiór wskaźników wykorzystano do oceny struktury czasowo-przestrzennej opadów w dorzeczu górnej i środkowej Odry w okresie czerwiec-lipiec 2009 oraz maj-czerwiec 2010 r. Wyznaczone wskaźniki mogą być wykorzystane w bieżącej ocenie warunków opadowych, a wraz z uwzględnieniem morfologii terenu i zagospodarowania danego obszaru - do oceny stopnia zagrożenia hydrometeorologicznego.
Intensive rainfall events can cause severe hydrological threats and flooding. The scale of hydrological impact depends on the amount of precipitation, duration and spatial range. The aim of this work was to develop a set of indicators for the evaluation of daily sums of rainfall in order to identify extreme events triggering hydrological hazards. Indicator threshold values were assumed a priori or estimated from long-term observation dataset. A selected set of indicators was used to evaluate spatial and temporal structure of two precipitation events: June-July 2009 and May-June 2010. The obtained results showed the magnitude of extreme rainfall, frequency and duration as well as location of extreme events forming hydrological hazard in 2009 and 2010 in the upper and middle Odra River basin. Developed set of indicators can be used operationally to evaluate current rainfall situation and, in combination with the information on hydrological and catchment conditions, to assess hydrological risk.

Źródło:

Woda-Środowisko-Obszary Wiejskie; 2012, 12, 2; 269-282
1642-8145

Pojawia się w:

Woda-Środowisko-Obszary Wiejskie

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Analysis of Rainfall Trend in Sokoto State, Nigeria (1987-2016)

Autorzy:

Ekoh, Harrison Charles

Powiązania:

https://bibliotekanauki.pl/articles/1031709.pdf

Data publikacji:

2020

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Cessation
Trends in Rainfall Pattern
climate change
climatic parameter

Opis:

Rainfall is an important climatic parameter. The study examined the nature of trend in annual rainfall amount and rainfall attributes such as onset, cessation dates and hydrological growing season. This study was carried out to determine if there was any significant change in rainfall in the study area. Walter’s 1967 formula was used to determine the onset, cessation and hydrological growing season. The results obtained were then subjected to a time-series analysis. The findings showed that annual rainfall in Sokoto from 1987 to 2016 is on the increase, Onset dates showed early onset of recent. The rains stopped late thereby increasing the hydrological growing season. The latest onset date occurred on 4th July in the years 1995 and 2016 and the earliest onset date on 12th April in the year 2015. The earliest cessation date was recorded on 22nd August in the year 1987 and the latest on 18th October in the years 2009 and 2010. The Hydrological growing season was longest (162 days) in 2015, this was seen to be a result of the onset dates of rainfall occurring earlier and cessation dates later. Despite the upward trend rainfall is variable and unreliable and insufficient to meet the water needs of the plants, and this has a great implication resulting in cases of seasonal drought occurrences and reduced agricultural yield. The government policies as related to agriculture and water resources development should be based on recent rainfall parameters.

Źródło:

World News of Natural Sciences; 2020, 28; 171-186
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 48.

Tytuł:

Spatial-Temporal Analysis of Rainfall West Java Indonesia Using Empirical Orthogonal Function based on Singular Value Decomposition

Autorzy:

Pribadi, Diantiny Mariam
Sumiati, Ira
Purwani, Sri

Powiązania:

https://bibliotekanauki.pl/articles/1031922.pdf

Data publikacji:

2020

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Empirical Orthogonal Function
Rainfall
Singular Value Decomposition
Spatial-Temporal

Opis:

Rainfall is one of the climate variables that have a significant influence, especially in supporting the activities of various sectors in tropical countries. Climate change is causing rainfall variability in Indonesia. However, the analysis of climate variable patterns is difficult because of the formation of a large matrix. Empirical Orthogonal Function (EOF) analysis can be used to reduce the dimensions of large data by maintaining as much variation as possible from the original data set. The method used in this study is through the Singular Value Decomposition (SVD) approach. The analysis shows that 98.50% of the total rainfall variance can be represented by four EOF modes. Analysis of the spatial pattern of EOF1 shows that rainfall is below average, while the other EOF modes show variations in rainfall.

Źródło:

World Scientific News; 2020, 140; 113-126
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

The Changes in Temperature and Relative Humidity in Lagos State, Nigeria

Autorzy:

Salau, Opeyemi R.

Powiązania:

https://bibliotekanauki.pl/articles/1182945.pdf

Data publikacji:

2016

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

temperature
relative humidity
rainfall
global warming
heat stroke
lagos

Opis:

The variability in the temperature and Relative Humidity (RH) observed within Lagos State, a coastal region in Nigeria, is investigated using data from Nigeria Meteorological Agency (NIMET) for 1980 to 2010. The results reveal an annual mean value of 27.20°C and 83.01% for the temperature and RH respectively and an increasing trend in RH over the study period while such rising trend in the mean temperature is reversed from 2005 to 2010. The findings show an inverse relationship between the temperature and RH while it further indicates that low temperature is associated with increased rainfall under the accompanying cloudy condition and vice versa. These observations are supported by the strong correlation coefficients between the RH and the rainfall (0.72) and that between the RH and the temperature (-0.95) while -0.59 is obtained between the rainfall and the corresponding temperature. The correlations show that the impacts of the precipitation on RH are stronger than the effects it has on the temperature while both temperature and RH strongly depends on each other. Hence, under a future global warming, extremely warm atmospheric condition characterized by high RH in the coastal region could cause heat stroke, discomfort and health problems among the inhabitants. However, the area becomes conducive and attractive to tourists under moderate RH and good temperature.

Źródło:

World Scientific News; 2016, 49, 2; 295-306
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 50.

Tytuł:

Wheat yield response and seasonal salt profile evolution under irrigation with saline waters in a semi-arid region

Autorzy:

Cheraghi, Seyed A. M.

Powiązania:

https://bibliotekanauki.pl/articles/293346.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

saline water
soil salinity
wheat yield
rainfall
leaching fraction

Opis:

Scarcity of fresh water resources is the major constraint for agricultural development in Iran as in many other regions with arid and semi-arid climate. With the pressure on fresh water resources, the use of un-conventional water resources including brackish, saline and sewage water has received greater attentions in recent years. The objective of this study was to assess the impact of farmers' practices using saline groundwater on wheat yield and soil salinity in a Mediterranean climate of Fars province in southern Iran. The study was carried out in several commercial wheat production regions for two years. Chemical analysis of irrigation waters, volume of applied irrigation water, electrical conductivity of soil saturation extract (ECe) and yield were measured in each field. General information on agronomic practices was also collected using a questionnaire. Results demonstrate that waters with salinities higher than what has been classified as “suitable for irrigation” are being used for the production of wheat crop. Analysis of wheat yield response to saline irrigation water showed that for water salinities up to 10.7 mS∙cm^–1 (threshold value) variation in yield was relatively minor, above which wheat yield decreased at a greater rate. Root zone salinity profiles showed the effect of winter rainfall in reducing soil salinity. It is concluded that although acceptable yields are obtained with some of the highly brackish waters, over application of these waters would threaten the sustainability of crop production in the region.

Źródło:

Journal of Water and Land Development; 2020, 44; 26-32
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

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