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Wyszukujesz frazę "Siwek, M." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Porównanie wybranych elementów meteorologicznych w sezonie letnim między stacjami Hornsund i Calypsobyen (Spitsbergen)
Comparison of some selected meteorological elements of the Summer season between Hornsund and Calypsobyen stations (Spitsbergen)
Autorzy:
Gluza, A.
Siłuch, M.
Siwek, K.
Powiązania:
https://bibliotekanauki.pl/articles/260651.pdf
Data publikacji:
2004
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
Spitsbergen
cyrkulacja atmosferyczna
warunki klimatyczne
atmospheric circulation
weather conditions
Opis:
The aim of the study washas been to determine the differences in the 24-hour means values of some selected meteorological elements between the stations analysed and also to determine the influence of atmospheric circulation on their distribution. Meteorological data collected at the Polar Station of the Institute of Geophysics of the Polish Academy of Sciences in Hornsund and the Calypsobyen Station of the Maria Curie-Skłodowska University of Lublin wasere used for the present research. The present studies showed that air temperature in Calypsobyen is on average 0.6°C higher than in Hornsund. Calypsobyen is warmer than Hornsund fromat almost all circulation directions. Hornsund is warmer only in the case of the NW direction. The highest levels of temperature differences (> 1°C) occur from theat S and SW directions. Calypsobyen was 0.3°C colder than Hornsund only in the case of the NWc type. Regarding the average total cloud coveriness of the sky [0-10], the difference between the two stations analysed was as small as 0.1. This results from thea high total cloud coveriness of the sky during summer. No differences were found in the case of medium wind velocity levels similarly as was in the case for the of cloud coveriness. The a mean difference forro this parameter was 0.1 m/s. The location of the station, as well as the orographic reletions in its surroundings, exerts a significant influence on the difference in thetiation of wind velocities in relation to the directions of the circulation directions. The total - taken ever twenty-four hour sums - of the atmospheric precipitation levels as an averaged with to the circulation directions in Hornsund were on average 0.8 mm higher than for in Calypsobyen. Precipitation levels were higher in Calypsobyen only from theat N and E directions and in the situation of a weather wedge over Spitsbergen (Ka), however, even then the values of these differences were small (0.1-0.2 mm). Analysis of the data analysis pointed to the significance of the direction of the circulation direction and its influence on the value of differences between the meteorological elements selected. In some cases (i.e. wind velocity, precipitation level) local factors - and including orographic relations and the location of the measuring site - are decisive.
Źródło:
Problemy Klimatologii Polarnej; 2004, 14; 183-188
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przebieg warunków pogodowych w Calypsobyen w sezonie letnim 2001 na tle wielolecia 1986-2000
The course of weather conditions in Calypsobyen in Summer season 2001 at the background of period 1986-2000
Autorzy:
Gluza, A.
Siwek, K.
Pęcak, J.
Siłuch, M.
Powiązania:
https://bibliotekanauki.pl/articles/260939.pdf
Data publikacji:
2003
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
warunki pogodowe
Spitsbergen
weather conditions
Opis:
Arctic, especially western coast of Spitsbergen has been a field of taking research by scientist from UMCS and AR in Lublin for more than 15 years. Researches have been taken there are connected with earth sciences like: meteorology and climatology, geomorphology, hydrography, geology and agriculture and botany. Meteorological observations were steady point of researches taking on every UMCS?s trips in Spitsbergen. At the beginning, at the 1986-1988 seasons were very wide, and measurements were taken every 3 hours. Between 1989 and 1999 measurements were taken 4 times a day a.e. every 6 hours. Since 1999 measurements have been doing by automatic stations. Appliance this equipment let us taking measurements with 10 minutes time step. The aim of this paper is to present course of meteorological conditions during the scientific trip to Spitsbergen in 2001 at the background of period 1986-2000. There were made comparisons of course mean daily four meteorological elements as: air temperature measured at 200 cm height [°C], wind speed [m/s], cloudiness, and precipitation [mm] from 2001 season with data collected during 15-years UMCS geographical trips on Spitsbergen. We can make statement that in thermic season 2001 was a bit cooler (0.1°C) than the period 1986-2000. At that season variability of mean daily temperatures was lower than in period. The lowest mean daily temperature was 2.5°C, and all days in period 2001 were lukewarm. The rate of mean daily cloudiness in period 1986-2000 is compensated. 2001 season was the same as other seasons during period. The air masses are strongly modified by circulation and orography. Season of 2001 was featured by lower mean daily wind speed (3.2 m/s) than in the period ? 4 m/s, also highest mean daily wind speed in 2001 was lower than in period 1986-2000. The greatest variability of four analysed elements on that period has precipitation. The variable of this element exceed 71.7 mm, which we can express as a ratio 1 to 20. 2001 season was dryer than mean of period about 11 mm.
Źródło:
Problemy Klimatologii Polarnej; 2003, 13; 117-125
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie warunków meteorologicznych na zachodnim wybrzeżu Spitsbergenu w sezonie letnim 2005 r.
Diversification of meteorological conditions on the western coast of Spitsbergen during the summer season of 2005
Autorzy:
Przybylak, R.
Araźny, A.
Gluza, A.
Hojan, M.
Migała, K.
Sikora, S.
Siwek, K.
Zwoliński, Z.
Powiązania:
https://bibliotekanauki.pl/articles/260889.pdf
Data publikacji:
2006
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
warunki meteorologiczne
sezon letni
Arktyka
Spitsbergen
meteorological conditions
summer season
Arctic
Opis:
W artykule przedstawiono porównanie warunków meteorologicznych w sezonie letnim 2005 r. na podstawie danych zebranych w trakcie trwania polskich wypraw polarnych do Hornsundu, Calypsobyen, doliny Ebby i Kaffiöyry. Dodatkowo, aby szczegółowiej poznać ich zróżnicowanie na zachodnim wybrzeżu Spitsbergenu skorzystano z dostępnych danych dla 2 norweskich stacji: Ny Alesund i Svalbard Lufthavn. Ze względu na różny czas pracy polskich ekspedycji polarnych do porównania warunków meteorologicznych wybrano wspólny okres 21.07-31.08. Stwierdzono, iż zróżnicowanie przestrzenne większości badanych elementów meteorologicznych na zachodnim wybrzeżu Spitsbergenu latem 2005 r. było znaczące. Na kształtowanie warunków meteorologicznych na badanym obszarze, a więc i na ich zróżnicowanie przestrzenne, w pełni sezonu letniego większy wpływ wywiera stopień kontynentalizmu klimatu niż szerokość geograficzna. Jednak wraz ze zbliżaniem się końca lata polarnego rola wspomnianych czynników się odwraca.
The paper presents the data concerning the spatial diversification of meteorological conditions occurring on the western coast of Spitsbergen during the summer season of 2005. For the analysis daily data have been used from four Polish stations (Kaffiöyra - KH, Ebby valley - EBB, Calypsobyen - CAL and Hornsund - HOR) and two Norwegian stations (Ny Ĺlesund - NYA, Svalbard Lufthavn - SVA), mainly for the common period of observation (from 21st July to 31st August) (Fig. 1). The Hornsund station was used as a reference station. Differences have been computer for all the analysed meteo-rological variables between stations for every 24-hour period, ten- / eleven-day period, and for the common period of observations as a whole (the meterological variables analysed include air pressure (AP), wind speed (v), cloudiness (C), sunshine duration (SS), maximum daily temperature (Tmax), mean daily temperature (Ti), minimum daily temperature (Tmin), relative humidity (f), and atmospheric precipitation (P)) (Table 1, Fig. 2, Fig. 5). All results proved that the spatial diversification of almost all analysed variables is significant. It is very evident that in the summer the degree of climate continentality has a greater influence on this diversification than the geographical latitude. Local topography plays also important role in the diversification of meteorological variables on the western coast of Spitsbergen. A good example of this influence is presented in Figure 4, showing different kinds of wind roses. It can be seen that winds from different directions dominate in each station. Mean daily courses of some selected meteorological variables (Fig. 3) also show that spatial diversification is varied throughout the day. For example, greater differences are noted during "night" hours for atmospheric pressure and wind speed, while an opposite relation exists for air temperature and relative humidity. Extreme values of analysed meteorological variables during the common period of observation (from 21st July to 31st August 2005) are shown in Table 2. The highest temperature (13.1°C) occurred in Svalbard Lufthavn located in the most continental part of Spitsbergen, while the lowest (0.5°C) was in the Hornsund region, where cyclones bringing thick clouds are very common. Day-to-day variabilities of the majority of the analysed meteorological variables on the west coast of Spitsbergen are quite large (Table 3).
Źródło:
Problemy Klimatologii Polarnej; 2006, 16; 125-138
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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