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    Wyświetlanie 1-7 z 7
    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
    Artykuł
    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
    Artykuł
    Tytuł:
    The geomorphological effectiveness of extreme meteorological phenomena on flysch slopes
    Autorzy:
    Gorczyca, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/294721.pdf
    Data publikacji:
    2008
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    extreme events
    heavy rainfall
    landslies
    flysch slopes
    Beskid Wyspowy
    Bieszczady Niskie
    Opis:
    Extreme events tend to cause large-scale slope system changes. During the last ten years, a series of extreme meteorological events caused considerable transformation of the slopes and valleys in various parts of the Carpathian Mountains. This paper presents the geomorphological effects of extreme rainfall and thaw events on the slopes of two catchments: the lososina catchment (Beskid Wyspowy) and the Hoczewka catchment with an area around the Solinskie Lake (Bieszczady Niskie). The bulk of the discussion concerns a study carried out in the Lososina catchment after three separate extreme events that were followed by a considerable transformation of the slopes due to landsliding. The studies carried out in the Biesr.cr.ady Range, where a single extreme event produced only spatially limited effects, were mainly used for comparison. '[he disparity between the responses of the two slope systems was a result of differences between the systems themselves, including their geology, geomorphology and landslide record, and of the difference in the scale of the extreme events.
    Źródło:
    Landform Analysis; 2008, 6; 15-27
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential risk of Mesodinium rubrum bloom in the aquaculture area of Dapeng’ao cove, China: diurnal changes in the ciliate community structure in the surface water
    Autorzy:
    Liu, H.
    Song, X.
    Huang, L.
    Tan, Y.
    Zhong, Y.
    Huang, J.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/47949.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    potential risk
    Mesodinium rubrum
    bloom
    aquaculture area
    Dapeng'ao cove
    China
    diurnal change
    ciliate community
    surface water
    heavy rainfall
    water column
    stratification
    irradiance
    Opis:
    Diurnal changes in the structure of the ciliate community in surface waters were studied in the aquaculture area of Dapeng’ao cove, China. Two periods of heavy rainfall occurred during the study period, intensifying water column stratification and influencing the water’s properties. A total of 21 ciliate taxa from 15 genera were identified; the dominant species was Mesodinium rubrum. The maximum abundance of M. rubrum reached 3.92×104 indiv. dm−3, contributing 95.1% (mean value) to the total ciliate abundance. Diurnal changes in M. rubrum abundance were highly variable, the driving force probably being irradiance and food availability. The results suggest that M. rubrum may form blooms in aquaculture areas when there is a suitable physical regime with enriched nutrients, which is potentially harmful to the fish-farming industry.
    Źródło:
    Oceanologia; 2012, 54, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Szkody w infrastrukturze leśnej w lasach Masywu Śnieżnika wyrządzone przez opady rozlewne w lipcu 2011 roku i ich uwarunkowania
    Damage to forest infrastructure in the Snieznik Massif caused by heavy rainfall in July 2011 and its conditions
    Autorzy:
    Urban, G.
    Foremnik, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/993197.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lasy
    szkody w lesie
    czynniki meteorologiczne
    opady atmosferyczne
    deszcze nawalne
    osuwiska
    rozmywanie gruntow
    uwarunkowania hydrologiczne
    uwarunkowania geomorfologiczne
    Masyw Snieznika
    heavy rainfall
    damage to forests
    the śnieżnik massif
    Opis:
    The paper investigates a landslide that occurred in the Śnieżnik Massif (SW Poland) in July 2011 after the heavy rainfall. Damage to the infrastructure in Międzylesie and Lądek Zdrój forest districts, in which the losses were the most extensive, are presented. Study analyses not only weather conditions, but also geomorphologic and hydrologic factors associated with the occurrence of the mass movement.
    Źródło:
    Sylwan; 2013, 157, 02; 95-103
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of heavy precipitation on the infiltration and inflow into small sewage treatment plants in 2010
    Autorzy:
    Kaczor, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/60233.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
    Tematy:
    heavy rainfall
    infiltration
    inflow
    small sewage treatment plant
    sewage treatment plant
    sewer system
    weather
    treatment plant
    Malopolska voivodship
    Krakow city
    mechanical treatment plant
    biological treatment plant
    modernization
    Opis:
    The aim of the study was to determine the extent to which heavy rainfall, that occurred in 2010, affected the infiltration into the selected sewage treatment plants in the Małopolskie voivodeship. The research was conducted in four separate sewer systems, located in poviats adjacent to the city of Kraków, discharging sewage to mechanical-biological treatment plants with a capacity below 1000 m3•d-1. The amount of sewage and extraneous water in the average wet year (2008) were used as control. As a result of heavy precipitation in 2010 the sewer system A received 18 539 m3 more extraneous water than in 2008 (increase by 343%), the sewer sys-tem B - 22 822 m3 (increase by 163%), the sewer system C - 109 715 m3 (increase by 248%) and the sewer system D - 30 796 m3 (increase by 303%). Heavy precipitation in 2010 caused the increase of infiltration and inflow by 264% on average in all studied sewer systems compared to the average wet year. As the result of precipitation, whose annual total in 2010 was higher by 65% than the normal value in 2008, there was an increase in the annual share of extraneous water from 5.3 to 19.7% depending on the facility. The volume of extraneous water, which was discharged into the studied treatment plants in 2010 (the period of heavy rainfall), constituted the following share of the annual value: in the sewer system A - 41.3%, in the sewer system B - 21.2%, in the sewer system C - 14.4%, in the sewer system D - 22.9%. Assuming the average gross amount of 3 PLN paid for treatment of 1 m3 of sewage, cost of extraneous water disposal in 2010 amounted from 78 533 PLN to 552 165 PLN, depending on the facility. The results obtained in the present study suggest that eliminating or reducing infiltration and inflow into the analyzed sewer systems would allow for large financial savings associated with reducing costs both for their transport and treatment as well as for modernization of facilities to enhance their hydraulic eapacity.
    Źródło:
    Infrastruktura i Ekologia Terenów Wiejskich; 2011, 12
    1732-5587
    Pojawia się w:
    Infrastruktura i Ekologia Terenów Wiejskich
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Korelacje między wybranymi zanieczyszczeniami w ściekach deszczowych
    Correlation between selected pollutants in rainfall wastewater
    Autorzy:
    Górska, K.
    Szeląg, B.
    Górski, J.
    Bąk, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/125912.pdf
    Data publikacji:
    2014
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    ścieki deszczowe
    metale ciężkie
    analiza składowych głównych
    biplot
    rainfall wastewater
    heavy metals
    principal component analysis
    Opis:
    W ostatnim okresie coraz częściej zwraca się uwagę na fakt, że zanieczyszczenia ścieków deszczowych to nie tylko definiowane odpowiednimi przepisami zawiesiny ogólne i związki ropopochodne, ale też inne związki mające wpływ na środowisko gruntowe i wody odbiornika. Należą do nich m.in. metale ciężkie, chlorki, siarczany, biogeny, zanieczyszczenia mikrobiologiczne. Zróżnicowanie czynników wpływających na jakość ścieków deszczowych, związanych między innymi z zanieczyszczeniem powietrza atmosferycznego czy rodzajem pokrycia terenu oraz prowadzonej działalności człowieka, powoduje, że określenie typowego ich składu jest zadaniem bardzo trudnym, szczególnie jeśli mamy do czynienia z terenami zurbanizowanymi. W rezultacie duże zanieczyszczenie wód opadowych odprowadzanych z terenów miejskich wpływa zdecydowanie na okresowe pogorszenie stanu czystości wód oraz destabilizuje równowagę biologiczną w odbiorniku. W artykule przedstawiono wyniki badań stanu zanieczyszczenia ścieków deszczowych spływających systemem kanalizacyjnym z obszaru wybranej zlewni o typowo miejskim charakterze, zlokalizowanej w centrum Kielc. Do analiz wytypowano wezbrania z okresu letniego i zimowego, w czasie których pobrano za pomocą automatycznego samplera próby ścieków deszczowych i roztopowych. Oznaczono w nich stężenia metali ciężkich (Ni, Cu, Cr, Zn, Pb, Cd), chlorków oraz określono pH i temperaturę. Do oceny korelacji między analizowanymi wskaźnikami zanieczyszczeń zastosowano metodę składowych głównych, a na tej podstawie sporządzono biploty oraz wyznaczono współrzędne czynnikowe.
    Recently, increasing attention has been paid to the fact that the rainfall wastewater pollution is defined not only by the suspended solids and oil derivatives, the admissible levels of which are given in regulations, but also by other compounds that affect the soil environment and the waters of the receiver. Those include, among others, heavy metals, chlorides, sulphates, biogenic substances, and microbiological pollutants. The quality of rainfall wastewater is influenced, among others by atmospheric air pollution, type of terrain coverage, and human activity. Diversity of factors that affect the quality of rainfall wastewater is enormous, which makes it extremely difficult to determine a typical composition of such wastewater, especially in urbanised areas. As a result, high pollution of rainfall waters running off from urban areas has a decisive impact on periodic deterioration of water purity and it disturbs the biological balance in the receiver. The paper presents the results of investigations on the pollution of rainfall wastewater running off, through a sewer system, from the area of selected catchment, typically urban in character, located in the centre of Kielce. The analysis was conducted for high water stages occurring in summer and winter periods. Samples of rainfall and spring thaw wastewater were collected using an automatic sampler. Heavy metals (Ni, Cu, Cr, Zn, Pb, Cd) and chloride concentrations, pH and temperature were determined for those samples. To assess the correlation between analysed pollution indexes, the Principal Component Analysis was used, on the basis of which biplots were made and factor coordinates were determined.
    Źródło:
    Proceedings of ECOpole; 2014, 8, 2; 497-504
    1898-617X
    2084-4557
    Pojawia się w:
    Proceedings of ECOpole
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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