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Wyświetlanie 1-15 z 23
Tytuł:
Assessment of Hazard from Damaging Wind Gusts in the Siedlce Area
Autorzy:
Radzka, Elżbieta
Olszewska, Eliza
Powiązania:
https://bibliotekanauki.pl/articles/2173241.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wind direction
wind speed
wind gust
hazard
Opis:
The average daily values of wind speed and wind gust speed in the years 2001–2018 in Siedlce were analyzed. In the study area, the frequency of individual wind directions was determined and, according to criteria set by the Government Centre for Security, the frequency of hazards from damaging wind gusts was evaluated. The following wind gusts were considered: >20 m/s, 25 m/s and 35 m/s. It was found that, in the Siedlce area, the prevailing wind direction was west-south-westerly (WSW), and the average annual wind speed in the long-term study period was 2.99 m/s. March, April and May were the months when the highest speeds of maximum wind gusts (>35 m/s) were recorded. Extreme wind gusts the speed of which poses a hazard to the environment, national economy as well as human life and health, occurred in both the cold and warm seasons of the year.
Źródło:
Journal of Ecological Engineering; 2022, 23, 7; 192--196
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trends Analysis of Wind in Srinagar Garhwal Valley, Uttarakhand, India
Autorzy:
Singh, Santosh
Negi, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/1075718.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AWS
Srinagar Garhwal
Wind Direction
Wind Speed
Opis:
Wind results from the air in motion. Air in motion arises from a pressure gradient. Wind direction and wind speed are two characteristics of the wind, whose inter-relationships may give us an insight into the prevailing weather condition at a particular place. This study examines the trend analysis of the wind direction and wind speed pattern of Srinagar Garhwal Valley, Uttarakhand. The average wind speed in Srinagar Valley is 2.923± 1.232 m/s. As it is seen the most frequent wind in Srinagar Garhwal has a speed from 0.50 to 2.10 m/s in the northwest direction.
Źródło:
World Scientific News; 2019, 119; 248-253
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mean air temperatures at definite wind directions in Hornsund, Spitsbergen
Autorzy:
Wielbińska, Danuta
Skrzypczak, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2053230.pdf
Data publikacji:
1988
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Spitsbergen
wind direction
air temperature
Źródło:
Polish Polar Research; 1988, 9, 1; 105-119
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of wind direction on aeolian sand transport in Southern Tunisia
Autorzy:
Khatelli, H.
Gabriels, D.
Powiązania:
https://bibliotekanauki.pl/articles/24714.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Tunisia
wind direction
sand transport
aeolian transport
Źródło:
International Agrophysics; 2000, 14, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wind Power as a Renewable Energy Source
Autorzy:
Radzka, Elżbieta
Rymuza, Katarzyna
Michalak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/124283.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
renewable energy sources
wind speed
wind direction
wind power technology
Opis:
The work presents a description of wind speed and direction in terms of using wind power as a renewable energy source. The wind power in Poland and at the Zawady EF was characterised. Observations were collected from 2002 to 2006 by an automatic meteorological station installed at the Zawady Experimental Farm (EF). Average monthly and yearly frequencies of winds blowing from individual directions were determined, and the average monthly wind speed was analysed. The most frequently recorded wind speed ranged from 2 to 4 m/s (light wind), and the least frequent winds blew at the speed of more than 10 m/s (strong wind). The cold season of the year saw winds blowing at the greatest speed (December, January and February), it being the lightest in the summer months (June, July and August). Wind rose analysis (2002–2006) revealed that at Zawady Experimental Farm, the westerly wind was the most frequent. A wind turbine has a limited capacity of wind power use, so only a small portion of energy supplied by wind may be converted into usable energy.
Źródło:
Journal of Ecological Engineering; 2019, 20, 3; 167-171
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of wind direction and orography on air temperature at the „Arctowski Station
Autorzy:
Styszyńska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2052904.pdf
Data publikacji:
1990
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
South Shetland Islands
air temperature
wind direction
Źródło:
Polish Polar Research; 1990, 11, 1-2; 69-93
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mean air temperatures at definite wind directions at Arctowski Station, King George Island, West Antarctica
Autorzy:
Wielbińska, Danuta
Skrzypczak, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2053229.pdf
Data publikacji:
1988
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
South Shetland Islands
wind direction
air temperature
Źródło:
Polish Polar Research; 1988, 9, 1; 133-145
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the Impact of Wind Conditions on Urban Heat Islands in Large Australian Cities
Autorzy:
Al-Obaidi, Ilham
Rayburg, Scott
Półrolniczak, Marek
Neave, Melissa
Powiązania:
https://bibliotekanauki.pl/articles/2028031.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
climate change
heat island
wind speed
wind direction
seasonal UHI
diurnal UHI
Opis:
Urban regions are well known to be warmer than the outlying surrounding regions: this phenomenon is termed an Urban Heat Island (UHI). Depending upon its severity, an UHI can influence human health, the condition of urban vegetation, as well as air and water quality leading to a general decline in the living conditions of the affected urban environments and residents. Some studies have shown that prevailing weather conditions, like wind patterns, can influence UHI magnitudes. These studies suggest that wind speeds may be inversely related to UHI magnitude. However, long-term and high frequency weather and temperature measurements are exceedingly rare, so the exact nature of the relationship between wind speeds and directions as well as UHI magnitudes remain unknown. In order to address this problem, this study investigates how UHI magnitudes in five Australian cities affect wind speed and wind direction. The results of this study revealed that urban–non-urban temperature differences are most pronounced under calm weather conditions. The UHI intensity weakened as wind velocity increased: strong significant negative correlations were found between the mean UHI intensity and mean wind speed magnitudes. The results show that the greatest UHI intensities are recorded when wind is weak (less than $2 ms^{-1}$), while the lowest magnitudes are found when wind speeds exceed $6 ms^{-1}$. Further, the results show that the critical wind speed value, above which the strength of the UHI is considerably minimized, is around $4–5 ms^{-1}$. In addition, the study shows that wind direction in each city is a critical driver factor that determines the intensity of the UHI effect. When winds originate from dry environments, they favour high UHI intensities at all wind speeds, while the winds from the ocean side of coastal cities tend to cool urban regions, reducing UHI intensities or even promoting the urban cool island formation.
Źródło:
Journal of Ecological Engineering; 2021, 22, 11; 1-15
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperatura powietrza a kierunek wiatru w Hornsundzie (1978-2009)
Air temperature and wind direction at the Hornsund station (1978-2009)
Autorzy:
Ferdynus, J.
Styszyńska, A.
Powiązania:
https://bibliotekanauki.pl/articles/260987.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatura powietrza
kierunek wiatru
Hornsund
Spitsbergen
air temperature
wind direction
Opis:
Praca charakteryzuje związki temperatury powietrza z kierunkami wiatru obserwowanymi na stacji w Hornsundzie w wieloleciu 1978-2009. Na stacji najczęściej wieje wiatr ze wschodu, od 38.3% w czerwcu do 59.4% wszystkich obserwacji w marcu. Subdominuje wiatr z NE (od 5.3% w lipcu do 30.9% w październiku). Przy wiatrach z N, NE i E średnia temperatura powietrza w okresie grudzień-marzec jest niższa od -10°C. Najcieplejsze są wiatry południowe (od -2.4°C w grudniu do 4.5°C w sierpniu). W okresie dnia polarnego (czerwiec-wrzesień) wieloletnie średnie miesięczne temperatury powietrza są dodatnie niezależnie od kierunku wiatru. Występujące na stacji w Hornsundzie wiatry cechują się dużą stałością struktury termicznej. W okresie chłodnym (listopad-maj) 'trwale' ciepłe są wiatry z sektora od W przez SW, S do SE, a 'trwale' zimne są wiatry z N, NE i E. Od listopada do stycznia największy wpływ na temperaturę powietrza w danym miesiącu wywierają wiatry z NE, a od lutego do maja - wiatry wschodnie.
This work characterises correlations between air temperatures and the wind directions observed at the Hornsund station over the many-year period 1978-2009. The wind direction most frequently observed at this station is east and it is noted in 38.3% of all observations in June and in 59.4% in March. NE wind prevails (form 5.3% in July to 30.9% in October). When N, NE and E winds are observed then the mean air temperature in the period December- March is lower than -10°C (from -10°C with E winds in December to -13.3°C with NE winds in January). Warmest are S wind (from -2.4°C in December to 4.5°C in August). During the polar day (June -September) the many-year mean monthly air temperatures are positive regardless of wind direction and in the middle of summer they are characterized by similar values: in July from 4.0°C with winds from SW to 5.1°C with NE winds, in August from 3.5°C with N winds to 4.5°C S winds. Winds occurring at the Hornsund station are characterized by high stability of thermal structures. During the cold (November-May) winds from the sector by W, S to SE are 'permanently' warm and winds from the N, NE and E are 'permanently' cold. From November to January the biggest impact on air temperature in the month have winds from the NE and from February to May - easterly winds.
Źródło:
Problemy Klimatologii Polarnej; 2011, 21; 197-211
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dependence of air quality conditions in cities in north-western Poland on the direction of air inflow
Autorzy:
Kicińska, Bożena
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2032475.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
North-western Poland
air pollution
sulphur dioxide
nitrogen dioxide
wind direction
Opis:
This paper presents the dependence of air pollution with sulphur dioxide and nitrogen dioxide on wind direction in Szczecin, Łeba, Elbląg and Zielona Góra in the period 19931999. It has been shown that the most disadvantageous air quality conditions in the cities listed above are on the days with air inflow from south-east, and the most advantageous on the days with advection from north-west. This dependence is particularly evident in the case of pollution with sulphur dioxide, especially in the cold half-year.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 81-86
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining the accuracy of weather forecasts emitted in NAVTEX system on the Klaipeda - Bayonne route
Autorzy:
Trzeciak, S.
Powiązania:
https://bibliotekanauki.pl/articles/320911.pdf
Data publikacji:
2007
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
NAVTEX
dokładność prognozy
kierunek wiatru
siła wiatru
widzialność
opady
forecast accuracy
wind direction
wind force
visibility
precipitation
Opis:
The study assesses the accuracy of 24-hour weather forecasts on the Klaipeda (Lithuania) - Bayonne (France) navigational route emitted in NAVTEX system. There were analysed the parts of the forecasts concerning wind direction and force, visibility and precipitation. The verification was based on the real state of these factors, stated the next day on areas concerned. A high degree of forecast accuracy was stated in all five broadcasting stations of the NAVTEX system, particularly with reference to visibility and precipitation.
Źródło:
Annual of Navigation; 2007, 12; 87-94
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparison of ASCAT wind measurements and the HIRLAM model over the Baltic Sea
Autorzy:
Sluzenikina, J.
Mannik, A.
Powiązania:
https://bibliotekanauki.pl/articles/48369.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
backscattering
Baltic Sea
HIRLAM model
numerical weather prediction
ocean surface
sea surface
stormy season
wind direction
wind field
wind scatterometer
wind speed
Opis:
This paper presents a comparison of the wind data measured by the ASCAT polar-orbiting satellite scatterometer and winds forecast by the numerical weather prediction model HIRLAM in the Baltic Sea region during the stormy season in 2009. Two different resolution models were used in the comparison. Mutual quality and uncertainty characteristics of the measurements and predictions are determined. The results of the study show that the ASCAT wind data are well correlated with the HIRLAM predicted winds, which raises the credibility of both data sources in operational and hindcasting applications over the Baltic Sea. A case of phase error in a HIRLAM forecast of cyclonic activity over the Baltic Sea is discussed.
Źródło:
Oceanologia; 2011, 53, (1-TI)
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of meteorological conditions in Svalbard fjords: Hornsund and Kongsfjorden
Autorzy:
Cisek, M.
Makuch, P.
Petelski, T.
Powiązania:
https://bibliotekanauki.pl/articles/47827.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
meteorological parameter
Arctic fjord
West coast
Spitsbergen
Svalbard Fjord
Hornsund
Kongsfjorden
air temperature
wind speed
wind direction
humidity
cloud cover
Opis:
This paper presents the results of a comparison of basic meteorological parameters in two Arctic fjords situated on the west coast of Spitsbergen, the main island of the Svalbard archipelago. Air temperature, wind speed and direction, humidity and cloud cover from the period 2005 to 2016 are described and compared with previous (from 1975) analyses of meteorological conditions in the investigated region. Such a choice of dates coincides with the time the GAME project measurements were carried out. The main goal of this study was to compare meteorological conditions in two fjords: Hornsund and Kongsfjorden, during the time of rapid climate changes. The results are collated with research results available in literature from previous years. We discovered that in the investigated period the climate of the Hornsund region is more oceanic than in Kongsfjorden. The stable level of the difference in climate elements is manifested and is evident mainly through greater amplitudes in air temperatures in Kongsfjorden, and in stronger winds in Hornsund.
Źródło:
Oceanologia; 2017, 59, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability in aerosol optical properties at Hornsund, Spitsbergen
Autorzy:
Rozwadowska, A.
Sobolewski, P.
Powiązania:
https://bibliotekanauki.pl/articles/48390.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Hornsund
Spitsbergen
aerosol optical property
atmosphere
chemical composition
humidity
meteorological condition
seasonal variability
variability
wind direction
wind speed
Arctic aerosol
Źródło:
Oceanologia; 2010, 52, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of 50-year wind data of the Southern Baltic Sea for modelling coastal morphological evolution – a case study from the Darss-Zingst Peninsula
Autorzy:
Zhang, W.
Harff, J.
Schneider, R.
Powiązania:
https://bibliotekanauki.pl/articles/48896.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Baltic Sea
coastal morphological evolution
coastline change
Darss-Zingst Peninsula
modelling
morphodynamic model
sea level
statistical analysis
wind
wind direction
wind speed
Opis:
High-resolution wind series in the southern Baltic Sea for the period of 1958–2007 are analysed to generate representative climate input conditions for a multi-scale morphodynamic model to simulate decadal-to-centennial coastline change. Four seasonal wind classes, each characterized by a predominant distribution of wind direction and speed, are derived from statistical analysis. Further calibration of this statistical description is done by sensitivity studies of the model to generate similar coastline changes of the Darss-Zingst peninsula as the measured data for the last century. The coastline change of this area is then projected for the next 300 years based on four different climate scenarios, through which impacts of accelerated sea level rise and storm frequency on the long-term coastline change are quantified.
Źródło:
Oceanologia; 2011, 53, (1-TI)
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

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