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Tytuł:
Daily oscillations of the air temperature in selected coniferous communities in the Borecka Forest
Autorzy:
Pietras, Katarzyna
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2030278.pdf
Data publikacji:
2008-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
air temperature
amplitude
maximal air temperature
minimal air temperature
local climate
Opis:
Two coniferous forest communities were selected for analysis: a marshy coniferous forest and a young spruce forest, both located in the Borecka Forest. Thermal conditions develop differently in each community during the spring, due to different tree crown closure, which influences the amount of direct solar radiation reaching the substratum. Soil humidity is another factor influencing the air temperature, since the capacity and thermal inertia of the soil depend on its humidity. The results of the study are compared with thermal conditions outside the forest.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2008, 13; 113-120
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Próba identyfikacji zasięgu oddziaływania lodowca górskiego na temperaturę powietrza – na przykładzie lodowca Engabreen (Norwegia)
An attempt to identify the extent of mountain glacier effects on air temperature – on the example of the Engabreen glacier (Norway)
Autorzy:
Dyszy, Wiktoria
Grajek, Zofia
Powiązania:
https://bibliotekanauki.pl/articles/43349427.pdf
Data publikacji:
2022
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
air temperature
variability of air temperature
Engabreen
glacier
UAV
Opis:
This study aims to identify the extent of mountain glacier influence on air temperature in the vertical profile, using the Engabreen glacier (Norway) as an example. An important aspect of the work is also an analysis of the variation in surface temperature and wind conditions in the valley of the Engabreen glacier. The analysis was carried out based on measurement data of vertical air temperature taken over the glacier cavity with sensors mounted to an unmanned aerial vehicle. The field survey was carried out on 25 July 2022 in the afternoon. The results of the measurements may indicate that the presence of the glacier reduces the air temperature gradient with altitude compared to the surrounding areas. Above the glacier, the air temperature in the vertical profile increases with height. Based on the profiles taken above the glacier, it was concluded that the surface of the glacier influences the air temperature above it up to an altitude of 37–53 m above ground level.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2022, 13 (73); 63-77
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperatura powietrza i wielkość opadów atmosferycznych w województwie łódzkim w latach 1966–2021
Air temperature and precipitation in the Łódź province in the years 1966–2021
Autorzy:
Balcerzak, Patrycja
Kolendowicz, Leszek
Półrolniczak, Marek
Powiązania:
https://bibliotekanauki.pl/articles/43349528.pdf
Data publikacji:
2022
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
air temperature
precipitation
Opis:
The aim of the study is to investigate the course of air temperature and precipitation in Łódź Province in 1966–2021. The study uses daily data provided by the IMGW-PIB net from three meteorological stations: Łódź–Lublinek, Sulejów, and Wieluń. The average air temperature in Łódź province is 8.3ºC. When analyzing the annual course of air temperature, the lowest values were recorded in January (2.1ºC on average), the highest were recorded in July (18.4ºC). A growing, statistically significant trend in air temperature was observed at all the stations in the analyzed multi-year period. The rate of changes in the average air temperature in Łódź province reached the maximum value of 0.35°C/10 years at all the three analyzed stations. The average rainfall totals in Łódź province are not very diversified. The average annual sum of precipitation in the analyzed period in Łódź province ranged from 562.2 mm to 597.2 mm. On a seasonal scale, the heaviest precipitation was in the summer months (June–August), and the lowest in winter (December–February), while autumn rainfallwas slightly higher than in the spring. The biggest amounts of rainfall were recorded in July (84.8 mm), while the minimum rainfall was in February (25.8 mm). At all the stations, there was an upward trend in precipitation in the spring and autumn, and a downward trend in the summer. On average, in Łódź province there were 169 days with precipitation.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2022, 13 (73); 7-25
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the possibility of the estimation of bare soil temperature on the basis of air temperature measurement
Ocena mozliwości szacowania temperatury gleby nieporośniętej na podstawie pomiarów temperatury powietrza
Autorzy:
Michalska, B.
Nidzgorska-Lencewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/47297.pdf
Data publikacji:
2009
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
soil temperature
air temperature
temperature measurement
estimation
daily soil temperature
daily air temperature
regression equation
determination
Opis:
Basis of the study was made up of the results of automatic, hourly measurements of air temperature and bare soil temperature originating from the agrometeorological station in Lipnik (53o21’ N; 14o58’ E, 30 m AMSL) from the period of 2001-2005. Basing on the results of the linear regression analysis, relationships for particular months were determined between daily soil temperature at four depths and air temperature set in seven different combinations. It was stated that the highest possibilities of daily soil temperature prediction in profile to 50 cm are characteristic for the air temperature that is the average from 24 hourly measurements. Average absolute differences between the actual soil temperature and the one calculated from equations for this relation oscillate in the particular months between 1.3oC at the depth of 5 cm and 0.5oC at the depth of 50 cm. On average, the smallest differences apply to the warm half of the year and the depth of 50 cm. It was shown that significantly smaller possibilities of the estimation of daily soil temperature values are characteristic for daily air temperature amplitude.
Podstawę opracowania stanowiły wyniki automatycznych, cogodzinnych pomiarów temperatury powietrza oraz temperatury gleby nieporośniętej, pochodzące ze stacji agrometeorologicznej w Lipniku (53o21’ N; 14o58’ E, 30 m n.p.m.) z okresu 2001- -2005. W oparciu o wyniki analizy regresji liniowej oceniono związki dla poszczególnych miesięcy, pomiędzy dobową temperaturą gleby na 4 głębokościach a temperaturą powietrza ujętą w 7 różnych kombinacjach. Stwierdzono, że największymi możliwościami predykcji dobowej temperatury gleby w profilu do 50 cm odznacza się temperatura powietrza będącą średnią z 24 cogodzinnych pomiarów. Średnie bezwzględne różnice między rzeczywistą temperaturą gleby a obliczoną z równań dla tego związku wahają się w poszczególnych miesiącach od 1,3oC na głębokości 5 cm do 0,5oC na głębokości 50 cm. Przeciętnie najmniejsze różnice dotyczą ciepłej połowy roku i głębokości 50 cm. Wykazano, że zdecydowanie najmniejszymi możliwościami szacowania dobowych wartości temperatury gleby odznacza się dobowa amplituda temperatury powietrza.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2009, 08, 4
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extreme daily air temperatures in Poland (2000-2013)
Autorzy:
Szczepanek, R.
Powiązania:
https://bibliotekanauki.pl/articles/60217.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
extreme temperature
daily air temperature
Polska
2000-2013 period
maximum temperature
air temperature
minimum temperature
trend
Opis:
This work concentrates on the analysis of monthly trends of extremes daily temperatures, both minimum and maximum. Analysis was done for the period 2000–2013, based on freely available hourly temperature measurements from 60 Polish stations. Percentiles Tmin10 for minimum and Tmax90 for maximum daily temperature within each month were used as thresholds for selection of extreme temperature values. Count of days with extreme temperatures below/above threshold described every month. Significance of days count trend was analyzed with Mann–Kendall test at the significance level 0.05. For maximum temperatures, significant decreasing trend was found only for 3 station-months. For minimum temperature, 26 significant trends were found and presented in the form of map.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki termiczne a stężenie pyłu zawieszonego w powietrzu atmosferycznym zimą w wybranych miastach Polski
Thermal conditions and concentration of particulate matter in atmospheric air in winter in selected Polish cities
Autorzy:
Rawicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/134837.pdf
Data publikacji:
2016
Wydawca:
ADVSEO
Tematy:
PM10
air temperature
air pollution
Opis:
The aim of the study was to assess the impact of thermal conditions on emission of PM10 in the atmosphere during the winter period in selected Polish cities. The basis of the work were average daily PM10 and air temperature measurement results, which were made in six cities during three of calendar winters (December-February) in 2011–2014. It has been shown that every decrease in temperature during the winter affects the increase in the concentration of PM10 in ambient air in most of the analyzed cities. The greatest role of air temperature in shaping emission of the fraction of particulate matter variability was found in a relatively cool winter 2011/2012, when the number of days with oversize levels of contamination ranged from 7 in Suwałki to even 46 in Nowy Sącz. The smallest impact of this weather element was found during a warm winter 2013/2014.
Źródło:
Technical Issues; 2016, 1; 59-65
2392-3954
Pojawia się w:
Technical Issues
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synoptic features of the severe winter 1986 at Arctowski Station, King George Island, West Antarctica
Autorzy:
Kowalski, Dominik
Wielbińska, Danuta
Powiązania:
https://bibliotekanauki.pl/articles/2053163.pdf
Data publikacji:
1989
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
synoptic climatology
air temperature
Źródło:
Polish Polar Research; 1989, 10, 1; 57-71
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność temperatury powietrza w Arktyce Kanadyjskiej w okresie 1951-2005
Variability of air temperature in the Canadian Arctic from 1951 to 2005
Autorzy:
Przybylak, R.
Maszewski, R.
Powiązania:
https://bibliotekanauki.pl/articles/260769.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatura powietrza
klasyfikacja termiczna
trendy temperatury powietrza
air temperature
Canadian Arctic
trends of air temperature
Opis:
W artykule przedstawiono szczegółową charakterystykę warunków termicznych na obszarze Arktyki Kanadyjskiej w okresie 1951-2005. Do tego celu wykorzystano średnie miesięczne, sezonowe i roczne wartości temperatury powietrza. Omówiono zarówno średnie rozkłady przestrzenne, jak też ich zmienność w badanym okresie czasu. Na podstawie uśrednionych obszarowo wartości temperatury powietrza dla całej Arktyki Kanadyjskiej, dla poszczególnych miesięcy i dla roku, ukazano ich zmienność w okresie 1951-2005 wykorzystując klasyfikacje termiczną zaproponowaną przez Miętusa i in. (2002).
This paper presents a detailed characterisation of thermal conditions in the Canadian Arctic from 1951 to 2005. For this purpose, monthly data (average, maximum and minimum temperatures) for 12 meteorological stations have been used (Table 1, Figure 1). Basic climatological characteristics have been calculated (Tables 3 and 4) and their spatial distributions are shown on maps (Figure 2). For seasonal and annual mean air temperature, the frequency of their occurrence in 1-degree intervals (Figure 4) as well as year-to-year changes (Table 4) have been calculated. For two time periods (1951-2005 and 1976-2005) air temperature trends for seasonal and annual means have also been presented (Table 5 and Figure 7). In both periods, areally averaged trends for the Canadian Arctic are positive. The greatest temperature trends were noted in autumn: 0.30°C/decade and 0.91°C/decade, respectively. From the period 1951-2005 to the period 1976-2005 a significant rise in trend values was observed, with the exception of winter. In the latter period, trends were statistically significant in summer, autumn and for the year as a whole. In the period 1951-2005, statistically significant trends occurred only in autumn (see Table 5). Thermal classifications of each month and year of the study period have been made according to the proposals of Miętus et al. (2002) (see Table 2 and Figure 8). The results of this classification show that after 1993 a significant increase in the number of months and years, classified as abnormally or extremely warm, was noted.
Źródło:
Problemy Klimatologii Polarnej; 2007, 17; 31-43
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przebieg roczny temperatury powietrza na Antarktydzie
Annual course of air temperature on the Antarctic
Autorzy:
Kejna, M.
Powiązania:
https://bibliotekanauki.pl/articles/260895.pdf
Data publikacji:
2002
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
Antarktyda
temperatury powietrza
Antarctic
air temperature
Opis:
On the Antarctic the annual course of air temperature shows a considerable spatial differentiation. Over the inland the course of temperature during the year is conditioned by insolation-radiational factors. On the coast the role of circulation factors connected with the advection of air masses from above the ocean or from the interior of the continent. In the paper mean monthly air temperatures from 56 stations making standard meteorological observations and from 38 automatic weather stations (AWS) have been used. On the Antarctic there types of annual air temperature courses can be distinguished: Oceanic - characterised by positive air temperatures in the summer season with the highest temperatures in February and by mild temperatures in the winter months (to -10°C). As a result of the ocean influence spring is considerable colder then autumn. The annual amplitudes are small (to 10-15°C). This type occurs on the western coast of the Antarctic Peninsula and on the subantarctic islands. Continental - with very low air temperatures. The warmest month is December with temperatures below -30°C in the interior of the continent. In winter the lowest mean monthly temperatures reach -70°C. The temperature frequently increases in the middle of winter; this phenomenon is called kernlose winter. The annual amplitude of air temperature is not high and in the interior its value reaches 30-35°C. The continental type includes the whole Antarctic except the narrow coastal belt. Coastal - characterised by air temperature around 0°C in the summer period. The warmest month is January. The lowest temperatures occur in January (-30° do -40°C). The growth of temperature in spring delays the heat uptake for the melting of sea ice. The annual amplitude of the air temperature is quite high and exceeds 20°C. Due to the influence of circulation factors on the Antarctic the annual course of the air temperature shows a large variability from year to year.
Źródło:
Problemy Klimatologii Polarnej; 2002, 12; 5-19
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany trendu temperatury powietrza na Antarktydzie w latach 1958-2000
Change of air temperature range on the Antarctic in the years 1958-2000
Autorzy:
Kejna, M.
Powiązania:
https://bibliotekanauki.pl/articles/260927.pdf
Data publikacji:
2003
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatury powietrza
Antarktyda
air temperature
Antarctic
Opis:
The progressive increase in the concentration of greenhouse gases in the atmosphere in consequence leads to the rise of the global air temperature. According to the III Report of IPCC (2001) from 1880 the mean temperature on the Earth has grown by 0.6°C ą0.2°C. The reaction of polar regions to the greenhouse effect is unknown. The Antarctic climate shows a considerably greater variability in comparison with the lower latitudes of the Southern Hemisphere. This is conditioned by interactions between the atmospheric circulation, the ocean, and the cryosphere. According to the scenarios of global greenhouse effect the temperature at the polar regions should grow by 3°C in summer and 4-5°C in winter. However, these model researches are not confirmed in reality. This shows that our knowledge concerning the functioning of climate system of the polar regions is insufficient. In the paper we have used monthly mean air temperature values for 21 stations being in operation on the Antarctic in the years 1958-2000 and for 34 stations making observations in the years 1981-2000. After checking the homogeneity of the series by the Alexandersson?s (1986) test we have counted the trends of air temperature. The average trend for annual and seasonal values were expressed by temperature change per 10 years. In the years 1958-2000 on the Antarctic the trend of the mean annual values of the air temperature shows great spatial differentiation. These differences are connected with the radiation balance depending on the variability of cloudiness and the albedo of the surface, and on the transformation of pressure fields and changes of the atmospheric circulation. Statistically significant (on 0.95 significance level) air temperature increase occurred on the western coast of the Antarctic Peninsula (for example Faraday 0.67°C/10 years) and at the stations Belgrano and McMurdo. A negative air temperature trend occurred on the South Pole (-0.21°C/10 years) and on the Droning Maud Land. The temperature changes in the region of the Antarctic Peninsula are correlated with the extension and surface of sea ice, especially in winter. There are considerable differences of air temperature trends on the Antarctic between the periods 1958-1980 and 1981-2000. The period 1958-1980 is characterized by an increase of air temperature, especially on the shore of continent (Casey 0.84°C/10 years, Faraday 0.76°C/10 years, Halley 0.69°C/10 years). The interior of the continent is distinguished by stability of weather conditions. Year-to-year temperature changes are smaller, then at the coast (the trend at the Amundsen-Scott station average 0.26°C/10 years). During the last years (1981-2000) significant changes took place in the tendency of air temperature on the Antarctic. In many regions of the Antarctic cooling began, on the cost of East Antarctica the temperature decreases, on the coasts of the Wilkes Land (Casey -0.82°C/10 years) and the Weddell Sea (Halley -1.13?C/10 years, Larsen Ice -0.89°C/10 years), especially in the autumn-winter period. In the interior of the continent also lower and lower temperatures occurred (Amundsen-Scott -0.42°C/10 years, Dome C -0.71°C/10 years). The cooling can be observed in all seasons, but it is the greatest in summer and autumn, when the decrease of solar radiation was observed in connection with the growing cloudiness. Vostok situated at the highest parts of ice dome does not show statistically significant trend. An increase of the temperature was observed in the interior of West Antarctica (Byrd 0.37°C/10 years). The warming rate of the climate became weaker on the Antarctic Peninsula (Faraday 0.56°C/10 years). The largest temperature changes occurred in the autumn-winter season when in the Antarctic Peninsula region the temperature increased, while in the interior and at the coast of East Antarctica considerably fell. Climate changes during the last 20 years of the 20th century showed the weakening of the warming rate on the Antarctic Peninsula and distinct cooling on the East Antarctica. The lack of warming, or even cooling, on the East Antarctica, is favourable to maintain the present climate system in this region. The increasing air temperature on the West Antarctic, especially on the Antarctic Peninsula caused many natural consequences. The ablation of glaciers clearly intensified, deglaciation takes place, glaciers retreat. The environmental changes lead to disturbances in the functioning of the Antarctic ecosystem.
Źródło:
Problemy Klimatologii Polarnej; 2003, 13; 7-26
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
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:
Thermal seasons in Warsaw during the period 1961-2013
Autorzy:
Majewski, Grzegorz
Przewoźniczuk, Wiesława
Powiązania:
https://bibliotekanauki.pl/articles/2037667.pdf
Data publikacji:
2014-10-10
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Air temperature
thermal season
city
Warsaw
Opis:
This study determines the approximate duration of the thermal seasons in Warsaw, and investigates their long-term variability. The measurement data come from the Ursynów meteorological station at the Warsaw University of Life Sciences (WULS) (λE 21°02’52’’, φN 52°09’38’’, 102.5 m a.s.l.), situated in the south of Warsaw, and comprise mean diurnal air temperatures for the years 1961-2013. In order to identify thermal seasons, the method of five-day rolling averages was applied, which revealed a substantial year-by-year variability. The achieved results were close to those found by other methods for stations situated within the same climatic region. Over the analysed period, winters and springs have become shorter, whereas the other two seasons have become longer. Nevertheless, the positive trend was only statistically significant for thermal summers. The increasing length of the thermal summer in Warsaw Ursynów may be due to the influence of urban heat islands in built-up areas.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2014, 18, 4; 41-46
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Conditions Relative to Atmospheric Circulation in the Christmas Period in Poland
Autorzy:
Tomczyk, Arkadiusz M.
Powiązania:
https://bibliotekanauki.pl/articles/1052725.pdf
Data publikacji:
2016-03-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
climate change
air temperature
Christmas
Polska
Opis:
The main objective of this article was to determine thermal conditions in the Christmas period and the impact of atmospheric circulation on their formation. The article is based on data on the mean daily air temperature for 16 stations in Poland for the 1966-2014 multiannual period. In this period, no statistically significant changes of air temperature were observed, neither in December, nor the Christmas period. The occurrence of averagely warmer holidays was associated with the inflow of maritime polar air masses from the western sector, while colder holidays occurred with the inflow of continental polar air masses from the eastern sector.
Źródło:
Quaestiones Geographicae; 2016, 35, 1; 47-56
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of daily water temperature fluctuations in lake Kierskie (West Poland)
Autorzy:
Ptak, Mariusz
Sojka, Mariusz
Nowak, Bogumił
Powiązania:
https://bibliotekanauki.pl/articles/1051197.pdf
Data publikacji:
2019-09-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
lake
water temperature
air temperature
wind speed
Poznań
Opis:
The paper presents the dynamics of daily water temperature fluctuations in Lake Kierskie (West Poland) and determines the effect of air temperatures and wind speed on the variability of the parameter (water temperature). The analysis was based on hourly water temperature values from the period from May 2012 to January 2018. The data analysis permitted the description of the thermal regime of waters in the lake in the hourly cycle in reference to each month, and designation of months characterised by the highest and lowest stability of water temperatures. More than half of the analysed days was characterised by a change in water temperature not exceeding 1°C. The course of water temperature showed strongly positive correlations with air temperature, and weak correlations with wind speed. Water temperatures in the lake were correlated the strongest with air temperatures with a 24 h time step.
Źródło:
Quaestiones Geographicae; 2019, 38, 3; 41-49
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variations in weather on the East and West coasts of South Spitsbergen, Svalbard
Autorzy:
Maciejowski, Wojciech
Michniewski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2051847.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Spitsbergen
air temperature
air humidity
foehn effects
Źródło:
Polish Polar Research; 2007, 2; 123-136
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warm Waves in North-Western Spitsbergen
Autorzy:
Tomczyk, Arkadiusz Marek
Bednorz, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2051145.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
air temperature
warming
atmospheric circulation
Źródło:
Polish Polar Research; 2014, 3; 495-511
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial differentiation of air temperature and humidity on western coast of Spitsbergenin 1979-1983
Autorzy:
Przybylak, Rajmund
Powiązania:
https://bibliotekanauki.pl/articles/2052764.pdf
Data publikacji:
1992
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Spitsbergen
climate
air temperature and humidity
Źródło:
Polish Polar Research; 1992, 13, 2; 113-129
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approaching of May maximum surface air temperature to characteristic summer season for Baghdad city
Autorzy:
Muter, Sara A.
Kadhum, Jasim H.
Hassan, Ahmed S.
Powiązania:
https://bibliotekanauki.pl/articles/35539647.pdf
Data publikacji:
2021
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
maximum air temperature
summer season
May
Baghdad
Opis:
Seasonal variability is the complex non-linear response of the physical climate system. There are two types of natural variability: those external and internal to the climate system. In any given season, natural variability may cause the climate to be different than its long-term average. This study examines with the seasonal variation of the maximum temperatures during the summer season. In addition, the maximum temperatures in May become close to the characteristics of the summer season. The monthly data for maximum temperature of May, June and July were used from Iraqi Meteorological Organization and Seismology (IMOS) for 47 years from 1970 to 2017 for Baghdad city. This period was long enough to estimate the range of approaching maximum temperature (Tmax) May to summer. Results revealed a significant Tmax for Baghdad during the second period (1992–2017) and ?shown similar behavior of Tmax in May to June and July; on the contrary that first period (1970–1991). In second period, two phases have been found out, positive phase and negative phase. The positive phase were happened in 1995, 1999, and 2006, and the negative phase was four cases (1992, 2004, 2013, and 2016), while a few cases recorded in first period. The amplitudes of monthly variability had same distance of leaner correlation especially in 1999 and 2013 that represent coherent wave with summer seasons. The variance difference for Tmax between May and June approximately was 2°C for second study’s period, while exceed this range in first period. This variance change to 7.5°C when found difference between July and May.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2021, 30, 3; 400-410
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in thermal indices on Herschel Island (Qikiqtaruk, Canada) between the periods 1899–1905 and 2008–2014
Autorzy:
Jarzyna, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/16648059.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Arctic
Yukon Territory
air temperature based indices
Opis:
The paper provides a comparison of minimum air temperature (TN), maximum air temperature (TX), mean air temperature (Tmean) and a few derived temperature indices for Herschel Island (Qikiqtaruk) in the Yukon Territory, Canada for the periods 1899–1905 and 2008–2014. A significant increase in the TN was noted at +4.2°C, which was a larger increase than that for both Tmean (+3.7°C) and TX (+3.5°C). Air temperature increased the most in October, November, and December. In addition, the length of the frost-free season increased by 26 days and the length of the growing season increased by 25 days from the early 20th century to the early 21st century. The increase in the TN also triggered a change in the plant hardiness zone where Herschel Island is located. However, the daily air temperature range declined over the course of the study period as well as the annual total of heating degree days and the number of exceptionally cold days. No statistically significant change in the number of freeze-thaw days was found for the studied periods.
Źródło:
Polish Polar Research; 2023, 44, 1; 21-39
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Temperature Error Correction Method for a Thermometer Screen
Autorzy:
Yang, J.
Liu, Q.
Powiązania:
https://bibliotekanauki.pl/articles/1032598.pdf
Data publikacji:
2017-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
temperature error
surface air temperature
computational fluid dynamics
screen
Opis:
Due to solar radiation exposure, air flowing inside a thermometer screen may produce a measurement error of 0.8°C or higher. To improve the air temperature observation accuracy, a temperature error correction method is proposed. The correction method is based on a computational fluid dynamics method and a genetic algorithm method. The computational fluid dynamics method is implemented to analyze and calculate the temperature errors of a screen under various environmental conditions. Then, a temperature error correction equation is obtained by fitting the computational fluid dynamics results using the genetic algorithm method. To verify the performance of the correction equation the screen and an aspirated temperature measurement platform are characterized in the same environment to conduct the intercomparison. The aspirated temperature measurement platform serves as an air temperature reference. The mean temperature error given by measurements is 0.77°C, and the mean temperature error given by correction equation is 0.79°C. This correction equation allows the temperature error to be reduced by approximately 97.5%.
Źródło:
Acta Physica Polonica A; 2017, 132, 4; 1301-1305
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena dokładności stosowanych metod obliczania średnich i ekstremalnych dobowych wartości temperatury powietrza w Arktyce Kanadyjskiej w XIX wieku
Estimation of accuracy of methods used calculation of mean and extreme daily air temperature values in the American Arctic in the 19th century
Autorzy:
Przybylak, R.
Vizi, Z.
Powiązania:
https://bibliotekanauki.pl/articles/260639.pdf
Data publikacji:
2005
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
Arktyka Amerykańska
temperatury powietrza
średnia i ekstremalna amplituda dobowa
American Arctic
air temperature
mean and extreme daily air temperature
Opis:
W artykule omówiono różne metody obliczania średnich dobowych temperatury powietrza w Arktyce Amerykańskiej w XIX wieku. Oceniono dokładność stosowania tych metod biorąc pod uwagę jako średnią wzorcową tzw. średnią dobową rzeczywistą temperaturę powietrza obliczaną z 24 danych cogodzinnych. Drugim problemem badawczych, który podjęto w artykule, jest oszacowanie wielkości błędów jakie się popełnia wybierając z różnych zbiorów danych godzinowych (co 1-, 2-, 3-godziny itd.) najwyższe i najniższe dobowe temperatury powietrza. Jako wzorzec w tym przypadku wykorzystano wartości temperatur maksymalnych i minimalnych powietrza odczytane z termometrów ekstremalnych. Podobną analizę przeprowadzono także dla amplitudy dobowej temperatury powietrza. Dla wszystkich analizowanych parametrów termicznych i dla wszystkich metod obliczania/wyznaczania średnich dobowych temperatury powietrza i temperatur ekstremalnych obliczono m. in. przeciętne błędy estymacji ich średnich miesięcznych wartości.
Knowledge about the history of climate in the Arctic is more and more important and necessary, especially at present when we are approaching the Fourth International Polar Year 2007-2008. Generally speaking, the history of the climate in this area during the 20th century is quite well known. On the other hand, little is known about the climate in the 19th century. Moreover, while we have extensive meteorological data for this period, in particular for the American Arctic, these data have many errors and biases. One of the most important biases is connected with the way in which daily mean air temperature has been calcu-lated. In the American Arctic during the 19th century nine different methods (m1-m9) were used. For the analysis we also added two presently used methods (m10-m11). The main aim of this paper is to estimate the magnitudes of errors which are connected with the use of the above methods of calculating daily means. As a real daily mean, the mean calculated using hourly data (m1) was used. Because in the American Arctic the mean daily air temperature is still calculated using formulae m11, we also calculated differences relative to this mean. Another issue which we undertake in the present paper concerns the estimation of errors which are the result of the method which was adopted to determine extreme temperatures (Tmax and Tmin) and the diurnal temperature range (DTR). We checked this for ten different methods (nine used in the 19th century) which used hourly, 2-, 3-, and 4-hourly etc. readings of air temperature for the purposes of calculation (see formulas m1-m10 for more details). As a base, real data, temperature readings from the extreme thermometers were used. For the analysis, hourly temperature data as well as daily Tmax and Tmin for the period 1979-1983 were used for the four meteorological stations (Eureka, Resolute, Coral Harbour and Iqaluit) located in the American Arctic. The results of our investigations are presented in Tables 1-5. The main conclusions can be summarized as follows: 1. Mean monthly temperatures obtained using methods m2-m5 and m9 of daily mean temperature calculation do not need to be corrected. The greatest errors (overestimation by 0.5 to 1.5°C) were found for the methods m6-m8 (owing to a lack of measurements during the night hours). The method m11 also produces significant errors. Generally, using this method, the mean monthly temperatures are most often lower (by 0.2 to 0.7°C) in relation to all methods analysed in the present paper (see Tables 1 and 2). 2. In accordance with expectations, mean monthly Tmax and Tmin determined using different methods are lower/higher than the respective monthly means calculated based on the readings from the maximum and minimum thermometers. When we determine Tmax and Tmin using hourly, 2-, and 3-hourly data, their monthly means are lower/higher, though generally by no more than 1.0°C. Greater errors are more clearly seen in the cold half-year than in the warm half-year (see Tables 3 and 4), 3. Mean monthly DTR calculated using hourly, 2-, and 3-hourly temperature data are lower than real values by about 0.5 to 2.0°C. For other methods of DTR calculations their errors are significantly greater - lower by about 3.0 to 4.0°C (see Table 5).
Źródło:
Problemy Klimatologii Polarnej; 2005, 15; 27-39
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contemporary Climate Changes in the High Mountain Part of the Tatras
Autorzy:
Żmudzka, Elwira
Powiązania:
https://bibliotekanauki.pl/articles/2035472.pdf
Data publikacji:
2011-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
air temperature
precipitation
snow cover
trend
Tatra Mountains
Opis:
The purpose of this study was to determine the contemporary changes of precipitation and nival conditions in the high-mountain area of Tatras. Main features of thermal climate changes are the background of this investigation. The study makes use of the daily data from the weather station on Kasprowy Wierch Mt. from the years 1966-2006. Various climate characteristics were considered. The increase of the air temperature is not accompanied by significant changes in precipitation conditions. The signs of the more continentality climate features are also visible. The warming and a slight decrease in precipitation and the evolution of circulation conditions significantly influence the length of the period with the snow cover and not significantly its depth.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2011, 15; 93-102
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The climatic background of agricultural production in Poland (1951 - 2000)
Autorzy:
Żmudzka, Elwira
Kwiatkowska, Joanna M.
Powiązania:
https://bibliotekanauki.pl/articles/2029390.pdf
Data publikacji:
2004-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
air temperature
atmospheric precipitation
variability
crop production
Polska
Opis:
This article presents the results of studies conducted on the variability of thermal and precipitation conditions in Poland in the second half of the 20th century, especially taking into consideration periods which were unfavorable for agricultural production. Averaged spatial temperatures and precipitation totals from consecutive years 1951 to 2000 were used. A significant increase in spring temperatures was noted, while the winters also became warmer. This had a significant effect upon the change of the thermal vegetation period's duration. No changing trends were noted with regard to the amount of precipitation.The analysis of the seasonal structure during the anomalous years, with regard to temperature and the amount of precipitation, made it possible to pinpoint years particularly unfavorable for agricultural production. There was a certain repeatability of unfavorable conditions, tied to the existence of a relatively stable 8-year cycle of temperature change, which was especially noticeable during the wintertime. During the last two decades of the 20th century, high temperature values, occurring also in the summertime, in combination with insufficient precipitation, contributed to the occurrence of dry spells and even periods of drought. The occurrence of dry spells during the vegetation period and the extreme shortening of the vegetation period have a significant effect upon the amount of grain crop production.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2004, 11; 127-137
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Summer weather conditions in 2005 and 2016 on the western and eastern coasts of south Spitsbergen
Autorzy:
Ziaja, Wiesław
Sulikowska, Agnieszka
Wypych, Agnieszka
Mitka, Krzysztof
Maciejowski, Wojciech
Ostafin, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2042136.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
weather variability
air temperature
atmospheric circulation
Źródło:
Polish Polar Research; 2018, 39, 1; 127-144
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The origin of coreless winters in the South Shetlands area (Antarctica)
Autorzy:
Styszyńska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2052064.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
Arctowski Station
coreless winter
air temperature
climate
Źródło:
Polish Polar Research; 2004, 25, 1; 45-66
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
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:
Air temperature in high-altitude areas as exemplified by the Tatra Mountains
Autorzy:
Jurczak, Krzysztof
Kędzia, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/2058408.pdf
Data publikacji:
2021
Wydawca:
Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:
air temperature
concave forms
convex forms
Tatras
permafrost
Opis:
The climate of a high-altitude postglacial cirque, such as Kozia Dolinka, is conducive to the occurrence of permafrost. Both the depth of permafrost and the area it covers, as well as the presence of year-round snow patches, can serve as indicators for assessing the impact of global warming on the climate of mountains, including the Tatras. With few meteorological stations to survey the remote and inaccessible high-altitude areas of the Tatra Mountains, any research must rely on measurements spanning limited time periods. Against this background, the 5-year series of temperature measurements from the Kozia Dolinka cirque obtained by the Institute of Geography and Spatial Organization of the Polish Academy of Sciences (IGiPZ PAN) can be used to analyze air temperature patterns on concave and convex terrain forms in the alpine climate zone if compared to the results of measurements from stations of the State Hydrological and Meteorological Service located nearby, i.e. the Kasprowy Wierch HighMountain Meteorological Observatory and the Hala Gąsienicowa Nival Research Station of the Institute of Meteorology and Water Management, National Research Institute (IMGW-PIB). This study confirms that there is a relationship between air temperature and the formation and duration of snow cover on concave and convex terrain forms. It also reveals a hitherto unknown fact that concave terrain forms, i.e. postglacial cirques, of the alpine zone have milder thermal conditions in winter than convex terrain forms. The analyses highlight the need for further, more detailed research using modern automated meteorological stations.
Źródło:
Meteorology Hydrology and Water Management. Research and Operational Applications; 2021, 9, 1-2; 1--13
2299-3835
2353-5652
Pojawia się w:
Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat waves and health impact on human in Baghdad
Autorzy:
Hassan, Zahraa M.
Al-Jiboori, Monim H.
Al-Abassi, Hazima M.
Powiązania:
https://bibliotekanauki.pl/articles/118603.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
heat wave
max air temperature
CBC analysis
Baghdad
Opis:
This investigation aim to evaluate the effect of heat wave on health of human, so to achieve this 40 blood samples for person exposed to heat wave were drawn most patients were attend to specialists in hospital laboratories (Medical City, Ibn al-Baladi, Sheikh Zayed, Kadhimiya Educational). The patients aged 10–60 years, male (20) and female (20). CBC analyzes was performed. The result of the presents study recorded a highly signifi cant difference in total (mean and percent) as compared with the normal value of the CBC analyze the result for total (mean and percent) for male the factors CRP, ESR, WBC, PCV, PL (15.5, 43, 11.35, 28.5, 215) respectively (100%, 100%, 100%, 100%, 100%) and the result for total (mean and percent) for female the factors CRP, ESR, WBC, PCV, PL (15, 43.5, 11.35, 31, 220.5) respectively (100%, 100%, 100%, 100%, 100%). According to the result we can conclude that there was a highly significant deferent in mean value for patient compared with the normal value which is the mean cause of hard attack which lead to death. The study is the first of its kind in the Department of Atmospheric Sciences in Iraq.
Źródło:
Scientific Review Engineering and Environmental Sciences; 2020, 29, 2; 212-222
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany warunków termicznych w Pile w latach 1971–2020
Changes in the thermal conditions in Piła in 1971–2020
Autorzy:
Matuszak, Zuzanna
Powiązania:
https://bibliotekanauki.pl/articles/43347431.pdf
Data publikacji:
2020-12-15
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
air temperature
climate changes
thermal classification
thermal seasons
Opis:
The paper focuses on changes of the thermal conditions in Piła in 1971–2020. In the study, daily data were obtained from the Institute of Meteorology and Water Management – the National Research Institute, to analyze the variability of the annual, seasonal and monthly average air temperature, develop a thermal classification and determine the variability of the start dates and the length of 6 thermal seasons. The analysis showed an increase in the average air temperature for all of the time intervals. The consequence of the progressive warming was the increasingly frequent occurrence of months, seasons and years with thermal conditions above the norm for the entire studied period. The research also showed statistically significant changes in the dates of the beginning of the spring, summer, autumn and early winter, with the highest trend in the autumn.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2020, 11 (71); 75-94
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Air temperature as a determinant of the forest line in the Tatras
Autorzy:
Baranowski, Jarosław
Kędzia, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/2040970.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
forest line
air temperature
concave landforms
the Tatras
Opis:
The forest line has been widely studied by a number of scientists representing various research disciplines. Changes in its position are an indicator of climate change. However, despite numerous studies, it is not always known what has the greatest influence on the position of the forest line. In the Tatras, which are Alpine moun-tains, the position of the forest line in places not disturbed by human activity or slope processes mainly depends on the annual mean air temperature and the number of days with negative temperature and its value in the warm season. The most unfavourable thermal conditions are found at the bottoms of concave landforms, just above the forest line. This thermal barrier effectively limits the upward movement of the forest line, even if the average annual temperature increases. Small concave landforms may have a higher vertical temperature gradient and lower air temperature values at their bottoms than larger and higher-lying forms.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 3; 203-213
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial variation of air temperature in the Arctic in 1951-1990
Autorzy:
Przybylak, Rajmund
Powiązania:
https://bibliotekanauki.pl/articles/2052494.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
air temperature changes
spatial relations
correlation analysis
Źródło:
Polish Polar Research; 1997, 18, 1; 41-63
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warming and drying of tundra and glacier summer climate in NW Spitsbergen from 1975 to 2014
Autorzy:
Przybylak, Rajmund
Araźny, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2046837.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
air temperature
Arctic
Kaffiøyra
precipitation
Svalbard
Waldemar Glacier
Źródło:
Polish Polar Research; 2016, 37, 2; 173-192
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zimowe ekstrema termiczne w Polsce i ich cyrkulacyjne uwarunkowania
Winter thermal extremes in Poland and their circulation conditions
Autorzy:
Tomczyk, Arkadiusz M.
Miś, Filip
Powiązania:
https://bibliotekanauki.pl/articles/43349045.pdf
Data publikacji:
2022
Wydawca:
Poznańskie Towarzystwo Przyjaciół Nauk
Tematy:
air temperature
warm days
NOA
SCAND
winter
Polska
Opis:
The study’s objective was to determine the spatial and temporal variability of occurrence of extremely warm days in winter in Poland in 1966/67–2020/21, and to determine the effect of atmospheric circulation on their occurrence. An extremely warm day is defined as a day with a maximum daily air temperature equal to or higher than the value of the 95. percentile. The effect of atmospheric circulation on the occurrence of the analyzed days was determined on the basis on two teleconnection patterns, namely the North Atlantic Oscillation (NAO) and Scandinavia (SCAND). The progressing warming translated into increasingly frequent occurrence of extremely warm days. In terms of the abundance of such days, the following winters stood out in the entire multiannual period: 1989/90, 2015/16, 2006/07, and 2001/02.
Źródło:
Badania Fizjograficzne Seria A - Geografia Fizyczna; 2022, 13 (73); 193-205
2081-6014
Pojawia się w:
Badania Fizjograficzne Seria A - Geografia Fizyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of Selected Parameters of Microclimate in a Stand Alone Cellar Plunged into Soil
Autorzy:
Nawalany, G.
Sokołowski, P.
Herbut, P.
Angrecka, S.
Powiązania:
https://bibliotekanauki.pl/articles/123949.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
cellar plunged into soil
air temperature
air relative humidity
soil
Opis:
The thesis presents the analysis of development of selected parameters of microclimate in a standalone cellar plunged into soil. The scope of studies included measurement of air internal and external temperature and relative humidity of internal and external air. The thesis also concerns the analysis of heat exchange of cellar compartments with the surrounding soil. The studies were carried out from July 11, 2012 to July 10, 2013. The analysis of the obtained results of studies proved that the internal air temperature in the examined cellar was mainly formed by the external air temperature as well as by the surrounding soil. For 42% of storage period, the thermal conditions in the cellar plunged into soil were unfavorable which disqualifies the cellar’s purpose for storage of vegetables, e.g. potatoes. Too high temperature was observed in the initial and final period. Favorable storage conditions were experienced only in the period from December 14, 2012 to April 11, 2013. To adjust this kind facility for storage of vegetables, thermal insulation of compartments and installation of cooling units is required.
Źródło:
Journal of Ecological Engineering; 2017, 18, 3; 156-161
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ zmian temperatury wody na Prądzie Norweskim na kształtowanie rocznej temperatury powietrza w atlantyckiej Arktyce i notowane tam ocieplenie w okresie ostatniego 20-lecia
The influence of changes in water temperature in the Norwegian Current on annual air temperature in the Atlantic part of the Arctic and its warming noted over the past 20-year period
Autorzy:
Styszyńska, A.
Powiązania:
https://bibliotekanauki.pl/articles/260694.pdf
Data publikacji:
2004
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatury powietrza
temperatury wody
Arktyka
water temperature
air temperature
Arctic
Opis:
Kruszewski, Marsz and Zblewski (2003) found out that winter temperature of water in the Norwegian Current indicates quite strong, occurring with a delay, correlations with the air temperature at Spitsbergen, Bjornoya, Hopen and Jan Mayen. Strong and statistically significant correlations between the mean sea surface temperature (SST) in the period January-March in grid 2°x2° [67°N, 10°E] and the monthly temperature of July, August and September with SST are marked the same year (3-5 month delay) and with the air temperature in November and December the following year (18-20 month delay). Waters of the Norwegian Current transport warm, of higher salinity Atlantic waters. Winter SST of the Atlantic Ocean characterizes the heat resources in the deeper layers of waters. SST in grid [67,10] in an indirect way characterizes heat resources carried with the Atlantic waters into the Norwegian Sea and farther to the Arctic together with the West Spitsbergen and Nordcap currents. The aim of this work is to describe the influence caused by changes in heat resources transported to the Arctic with the Norwegian Current on the annual temperature of air in the region of Hopen, Spitsbergen and Jan Mayen. The examined period covers the years of 1982?2002 and is marked by great warming in this area. The analysis of spatial distribution of correlation coefficients justifies Kruszewski and others (2003) hypothesis of mechanism causing the delayed influence of changes in water heat resources on the air temperature in this region The observed positive correlations between winter SST in [67,10] grid and air temperature in July, August and September result in the influence of changing water heat resources on atmospheric circulation noted in these months. Positive correlations in November and December in the following year result from the ?onflow? to the Arctic of warmer and of high salinity Atlantic waters. They have influence on the ice formation on the Greenland and Barents seas thus causing that influence of changing heat resources carried with waters on air temperature is much stronger. The analysis of regression made it possible to establish the correlation between annual air temperature at a given station (Ts) and winter water temperature (Tw) in [67,10] grid. Annual temperature in a year k is a function of two variables: Tw of the same year as the temperature Ts (Tw(k)) and Tw from the preceding year (Tw(k-1)): Ts(k) = A + b . Tw(k) + c . Tw(k-1) Table 3 contains the values of constant term and regression coefficients as well as statistical characteristics of formulas for the analysed stations. Both variables Tw from the year k and the year k-1 explain about 40% of the changeability in mean annual air temperature of the observed 20-year period at the analysed stations. This means that only one element, i.e. heat resource in the waters of the Norwegian Current, defined with the value Tw, determines more than 1/3 of the whole annual changeability in air temperature in the region located from Jan Mayen up to Hopen and from Tromso up to Ny Alesund. The station for which maximum explanation may be applied (47.7%) is Hopen, the station where the positive trend in annual temperature is the highest (+0.090°C/year). The values of regression coefficients b and c prove that the inertial factor connected with advection of the Atlantic waters has greater role in the changeability in mean annual temperature of air. The analysis of formula [2] indicates that great increases and decreases in annual temperature at the discussed stations will be observed in a k year if the values of Tw in two following years are significantly higher or lower than the mean ones. That is why the occurrence of positive trend in value of Tw should be followed by relatively systematic increase in annual air temperature at stations located at the described region. A positive trend in annual air temperature was noted at the analysed stations over the period 1982?2002. At Jan Mayen its value is +0.067 (ą0.028)°C/year (p<0.026). When taking the estimated values of regression coefficients in the multiple regression connecting the annual temperature at Jan Mayen with the value of Tw (Table 1) and the same value of trend T equal to +0.023 then the value of annual trend in air temperature at Jan Mayen influenced by trend Tw equals 0.0598°C/year. The obtained result indicates that the whole or almost whole warming observed at Jan Mayen in the years 1983-2002 may be explained by direct and indirect influence of the increase in the value of Tw over that period.
Źródło:
Problemy Klimatologii Polarnej; 2004, 14; 69-78
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feasibility of using heat-recovery exchangers in livestock buildings at a site at a specific altitude with a specific average outdoor air temperature
Autorzy:
Sleger, V.
Neuberger, P.
Polak, M.
Powiązania:
https://bibliotekanauki.pl/articles/62353.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
feasibility
heat-recovery exchanger
livestock building
outdoor air temperature
climate condition
Czech Republic
agriculture
air temperature
weather station
ventilation
air exchange
heat exchanger
Opis:
The installation of an energy-saving facility must be preceded by analysis of its financial effectiveness. Among methods enabling such evaluation is the basic net profit calculation method. For this, the annual consumption of electricity for ventilation or of thermal energy for heating must be determined. The calculation formula uses the sum of energies for temperatures within the range from the calculation temperature for the area in question to the long-term average of the maximum temperature at the site, or to the temperature at which the heating power is zero. It is necessary to know the summary time of occurrence of a given temperature during a year. The site data can only be assessed based on long-term meteorological information. In fact, data used by current national standards to describe climatic conditions in the Czech Republic are from the years 1901 to 1950. The dependence of the average yearly temperature on altitude is shown in Fig. 1 for the 1961 1990 and 1991 2000 periods. It is evident that the average temperatures for the latter period are nearly 0.6 K higher than those for the former period, irrespective of the altitude. In this paper the climatic conditions are assessed based on daily data measured throughout the period from 1 January 1991 to 31 December 2000. Weather stations were selected so as to achieve a uniform coverage and continuity of measurement at each site (as far as possible). All the stations lie in the Czech Republic between 48.8° and 50.8° north latitude at altitudes from 158 m to 1324 m. It was the objective of this examination, based on the meteorological data collected to calculate the average number of days and hours during which the temperature during the year is lower than a specific limiting level, in dependence on the average yearly temperature of the site. Fig. 3 shows the average number of days in a year during which a temperature lower than a selected limiting level occurs, as calculated for the 1991 2000 period. The results are presented for 4 areas with average yearly temperatures of 6 °C 7 °C, 7 °C 8 °C, 8 °C 9 °C, and 9 °C 10 °C, respectively. The graphs enables us to ascertain the number of days during which a heating facility is in operation if the facility is activated by outdoor air temperature decrease to below a specific limiting level. If a typical daily temperature wave is considered, the method makes it possible to estimate the number of hours during which the air temperature is lower than the limiting level chosen. The difference between the data for various limiting levels allows us, for an area with a specific average yearly temperature to ascertain the time of occurrence of outdoor temperature within various ranges. The results of calculations are shown in Fig. 4 and Table 1. The method applied enables underlying data to be prepared for the assessment of energy demands for air heating at a given site and for estimation of the energy savings that could be achieved by installing economical air heating facilities in livestock buildings.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2009, 07
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ zmian temperatury wody powierzchniowej mórz Barentsa, Norweskiego i Grenlandzkiego na trend rocznej temperatury powietrza na Spitsbergenie
Influence of changes in sea surface temperature in the Barents, Norwegian and Greenland seas on the annual air temperature trend at Spitsbergen
Autorzy:
Styszyńska, A.
Powiązania:
https://bibliotekanauki.pl/articles/261025.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatura powietrza
temperatura powierzchni morza
Spitsbergen
air temperature
sea surface temperature
Opis:
Praca omawia wpływ zmian temperatury wód powierzchniowych (SST - sea surface temperature) mórz Barentsa, Norweskiego i Grenlandzkiego zachodzących w okresie zimowego wychładzania (styczeń-kwiecień) na roczne i sezonowe wartości temperatury powietrza na Spitsbergenie w okresie 1912-2010. Stwierdzono, że zimowa SST rozległej powierzchni mórz otaczających Spitsbergen jest silnie skorelowana z roczną temperaturą powietrza na Spitsbergenie przez kolejne trzy lata (k, k+1, k+2). Powierzchnia akwenów, na których występują opóźnione korelacje z temperaturą powietrza na Spitsbergenie stopniowo zmniejsza się, a siła związków słabnie. Obszary, na których w roku k+2 korelacje utrzymują najwyższą (p < 0.001) istotność odtwarzają szlaki przenosu prądowego. Akwen, na którym zmienność SST z roku k najsilniej koreluje z roczną i zimową temperaturą powietrza na Spitsbergenie w kolejnych trzech latach (k, k+1, k+2) nie zmienia swojego położenia - jest to obszar leżący na pograniczu N części Morza Norweskiego i W części Morza Barentsa - między Bjornoyą a Nordkapem. Długookresowe zmiany temperatury powierzchni mórz wokółspitsbergeńskich regulują długookresową zmienność temperatury powietrza na Spitsbergenie, a występujący w przebiegu rocznej temperatury powietrza trend ma swoją genezę w zmianach zasobów ciepła w wodach tych mórz.
This work discusses the influence of changes in SST (sea surface temperature) of the Barents, Norwegian and Greenland seas occurring during winter cooling (January-April) on annual and seasonal air temperatures at Spitsbergen during 1912-2010. It was found that the winter SST of vast seas surrounding the region of Spitsbergen is strongly correlated with annual and winter air temperature at Spitsbergen during the next three years (k, k+1, k+2). The sea areas, where the delayed correlations with air temperature at Spitsbergen are observed, gradually decrease, and the strength of the correlation decreases. The routes of moving current represent the areas where correlations maintain the highest significance (p <0.001) in the year k+2. The sea area, where variability of SST from year k is most strongly correlated with the annual and winter air temperature at Spitsbergen in the next three years (k, k+1, k+2) does not change its position - this is the area lying on the border of the north part of the Norwegian Sea and the west part of the Barents Sea - between Bjornoya and Nordkap. Long-term sea surface temperature changes of vast seas surrounding the region of Spitsbergen regulate the long-term variability of the air temperature on Spitsbergen, and appearing in the course of the annual air temperature trend has his own genesis in changes of resources of the warmth in waters of these seas.
Źródło:
Problemy Klimatologii Polarnej; 2011, 21; 115-131
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differentiation of thermal conditions in the vertical profile of Natural National Park of Carpathians
Autorzy:
Kicińska, Bożena
Wawer, Jolanta
Mucha, Bogdan
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2030280.pdf
Data publikacji:
2008-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
air temperature
local climate
Natural National Park of Carpathians
Opis:
In the paper, the results of field studies using automatic meteorological stations are presented. The studies were conducted in July 2005 - July 2006 in the vertical profile of Natural National Park of Carpathians. The results show that the thermal conditions in the area under research is strongly differentiated. Particularly large differences have been observed between the lowerings of the terrain (where the range of annual air temperature changes reaches almost 70˚C, exceptionally high and exceptionally low temperature occurs often, and thermal inversions are frequently encountered) and the summit region (where the range of annual air temperature changes barely exceeds 50˚C and the mean changes of daily air temperature are consideraly smaller).
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2008, 13; 105-111
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of meteorological conditions in the growth of Robinia pseudoacacia on the basis of pointer years in urban conditions
Autorzy:
Kalbarczyk, Robert
Ziemiańska, Monika
Powiązania:
https://bibliotekanauki.pl/articles/957003.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
air temperature
rainfall
dendroclimatology
tree ring width
black locusts
Opis:
This study assessed changes in air temperature and rainfall during the growth of black locusts (Robinia pseudoacacia L.) in urban conditions in the city of Wroclaw based on pointer years. Materials consisted of 54 wooden discs taken from felled straight-trunked trees at a height of 1.3 m from the ground at four sampling sites in the area of a defunct garden established at the turn of the 20th century. Meteorological indicators were calculated based on monthly data obtained from the Wroclaw meteorological station, part of the national atmospheric monitoring network. Tree ring widths were determined using LINTABTM 6 and TSAP-Win software. A set of meteorological elements describing temperature and rainfall conditions during the growth of the black locusts significantly affecting the tree ring widths, were selected using cluster analysis. Pointer years were defined as the years when a unidirectional change (e.g. an increase) in tree ring width compared to a previous year was observed in at least 75% of the trees. In the multiannual period 1955–2014 we found seven pointer years, comprising three positive years (tree ring wider than in the year before): 1986, 1989, 1996, and four negative years (tree ring narrower than in the year before): 1963, 1983, 1990, 1991. The width of the tree rings were formed under the influence of different unique thermal and rainfall systems each year. Within the groups of positive and negative pointer years, individual months differed in the impact of air temperature and rainfall conditions on tree ring widths.
Źródło:
Dendrobiology; 2017, 77; 33-43
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zlodzenie Hornsundu i wód przyległych (Spitsbergen) w sezonie zimowym 2011-2012
Ice conditions in Hornsund and adjacent waters (Spitsbergen) during winter season 2011-2012
Autorzy:
Kruszewski, G.
Powiązania:
https://bibliotekanauki.pl/articles/972205.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatura powietrza
wiatr
Akseloya
Calypsobyen
Spitsbergen
air temperature
wind
Opis:
W pracy przedstawiono zróżnicowanie warunków meteorologicznych jakie występuje latem w rejonie Bellsundu. Analizą objęto okres od 23 czerwca do 1 września 2011 roku. Długość serii pomiarowej wynika z terminu rozpoczęcia i zakończenia Wyprawy UMCS na Spitsbergen. W pracy przeanalizowano zmienność temperatury powietrza oraz kierunku i prędkości wiatru na stacjach Calypsobyen i Akseloya. W badanym czasie na stacji Akseloya dominuje wiatr NE, a subdominuje wiatr z SW, natomiast na stacji Calypsobyen odpowiednio wiatry z ENE i NW. Na obu stacjach średnie prędkości wiatru są zbliżone. Przy wszystkich kierunkach wiatru, poza sektorem SW, temperatura powietrza na stacji Akseloya jest wyższa niż na Calypsobyen. Największe różnice temperatury występują przy wiatrach z ESE (4,3 deg). Występowanie wyraźnego ocieplenia na stacji Akseloya przy wiatrach z sektora E – SSE wiązać należy ze zjawiskami fenowymi.
The paper presents a variation of meteorological conditions that are observed during summer in the region of Bellsund. The analysis covered the period from 21 June to 1 September 2011. The length of the measurement series results from the date of commencement and completion of UMCS Expedition to Spitsbergen. The paper examines the variability of air temperature and wind direction and speed at the Calypsobyen and Akseloya stations. In the analyzed period, NE wind dominates at the Akseloya station and SW wind sub-dominates there whereas at the Calypsobyen station winds from ENE and NW respectively. The average wind speeds at both stations are similar. For all wind directions, outside the SW sector, the air temperature at the Akseloya station is higher than at the Calypsobyen station. The largest temperature differences occur when winds from ESE (4.3 deg) are observed. The presence of visible warming at the Akseloya station during winds from the E-SSE sector should be associated with the phenomenon of foehn winds.
Źródło:
Problemy Klimatologii Polarnej; 2013, 23; 169-179
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zapis zmian zachodzących w środowisku przez sosnę zwyczajną oraz sosnę Banksa
Record of the changes in environment by Scots pine and Jack pine trees
Autorzy:
Wilczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/979308.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
basal area increment
growth reduction
pollution
air temperature
dendroclimatology
Opis:
The aim of the study was to investigate how industrial pollutants and change of thermal conditions of winter season in the second half of the 20th century affected the basal area increment (BAI) and the climatic signal in the BAI chronologies of Pinus sylvestris and Pinus banksiana. Samples were collected from 21 trees of both species growing in the Chrzanów Forest District (50°20' N, 19°47' E) which is located between the Upper Silesian and Krakow Industrial Regions. Two cores were taken from each tree. Tree−ring widths were measured at the cores and the BAI for each year in the period 1930−2016 was calculated. The growth reductions of both pine species in the years 1951−1970, increasing of diversity of growth reactions from year to year and also reduction of strength of climatic signal in the period 1963−1994 may have been caused by industry pollution. The reduction of wood growth, the increase of the diversity of short−term incremental reactions and also the reduction of strength of the climatic signal were greater in Jack pine. This indicates that Scots pine was more resistant to pollution. As an industrial production declined and environmentally friendly technologies were introduced in the 1990s homogeneity of growth reactions and strength of dependence between BAI and climate parameters in both species increased. A significant increase in the strength of the relationship between January temperature and BAI of Scots pine and Jack pine was observed in the early 2000s. This may suggest that the vegetation season starts already in January in the study area.
Źródło:
Sylwan; 2020, 164, 07; 583-593
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza zmienności temperatury powietrza w Poznaniu w latach 1973-2003
Analysis of the variability of air temperature in Poznań in the years 1973-2003
Autorzy:
Jędrys, K.
Leśny, J.
Powiązania:
https://bibliotekanauki.pl/articles/338509.pdf
Data publikacji:
2007
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Poznań
temperatura powietrza
zmiany klimatu
air temperature
climate change
Opis:
W pracy dokonano analizy warunków termicznych w Poznaniu w latach 1973-2003, wykorzystując dane meteorologiczne pochodzące ze stacji meteorologicznej IMGW Poznań-Ławica. Stwierdzono, że ocieplenie obserwowane na prawie całej kuli ziemskiej może znajdować swoje odzwierciedlenie w przebiegu średniej rocznej temperatury powietrza w Poznaniu. W analizowanym okresie zaobserwowano jej średni wzrost o 0,35°C w ciągu 10 lat, czyli łącznie o 1,05°C. Jest to wartość istotna statystycznie. Analizując temperaturę średnią miesięczną w tym samym czasie, zaobserwowano tendencję wzrostową w odniesieniu do 9 miesięcy.
The paper presents a study on thermal conditions in the years 1973-2003 in Poznań, using meteorological data from IMGW Meteorological Station Poznań-Ławica. It was found that global warming observed almost all over the world is probably reflected in the course of mean annual air temperature in Poznań. It grew on average by 0.35°C per decade, which makes a statistically significant increase by 1.05°C over the study period. The analysis of monthly means of air temperatures showed increasing tendency for 9 months.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2007, T. 7, z. 2a; 137-145
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Słoneczna temperatura przegrody pionowej w warunkach klimatu lokalnego
Solar-air temperature of vertical building structure in local climate
Autorzy:
Wojewódka, D.
Wilk, B.
Powiązania:
https://bibliotekanauki.pl/articles/362800.pdf
Data publikacji:
2007
Wydawca:
Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Tematy:
słoneczna temperatura
współczynnik absorpcyjności promieniowania słonecznego
solar-air temperature
Opis:
W artykule autorzy podjęli próbę oceny wpływu promieniowania słonecznego na pionowe przeszkody budowlane w warunkach klimatu lokalnego, w zależnosci od parametrów materiałowych powierzchni przegrody. Wpływ promieniowania słonecznego wyrażony został przez temperaturę słoneczną. Analiza została przeprowadzona na podstawie pomiarów całkowitego promieniowania słonecznego padającego na płaszczyznę pionową, uzyskanych na stanowisku badawczym zakładu Budownictwa Ekologicznego.
In the paper a trial of the influence of total solar radiation on vertical building structures was taken up. The influence of solar radiation was described on research stand of Department of Building Processes of Silesian University of technology were used in calculations.
Źródło:
Fizyka Budowli w Teorii i Praktyce; 2007, T. 2; 311-316
1734-4891
Pojawia się w:
Fizyka Budowli w Teorii i Praktyce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stosunki termiczne i wilgotnościowe w Zatoce Treurenberg i na masywie Olimp (NE Spitsbergen) w okresie od 1.VIII.1899 - 15.VIII.1900
Thermal and humidity relations in Treurenberg Bay and Massif Olimp (NE Spitsbergen) from 1st August 1899 to 15th August 1900)
Autorzy:
Przybylak, R.
Dzierżawski, J.
Powiązania:
https://bibliotekanauki.pl/articles/260665.pdf
Data publikacji:
2004
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatury powietrza
wilgotność powietrza
Spitsbergen
air temperature
atmospheric humidity
Opis:
The paper describes weather conditions (based on air temperature and humidity) in Treurenberg Bay and Massif Olimp (NE Spitsbergen) for the period from 1st August 1899 to 15th August 1900. The hourly data of the meteorological elements under analysis were collected by the Swedish-Russian scientific expedition, which was sent to Spitsbergen in 1899 to measure an arc of the Earth?s meridian. During the expedition two meteorological stations were established (Fig. 1): the main one (21.9 m a.s.l.) located by the sea in Treurenberg Bay (hereafter 'Treurenberg') and a secondary station (408 m a.s.l.) situated on Massif Olimp (hereafter 'Olimp'). The quality of data were checked and assessed as being very good, especially for the Treurenberg station. The air temperature (T) in Treurenberg in the annual march was highest in August (mean monthly T = 2.1°C) and lowest in March (-27.0°C) (Tab. 2, Fig. 2). Mean yearly T was equal to -9.8°C. The values of T in this part of Spitsbergen are significantly lower than in the western coastal part of the island where, for example, the average annual T for the period 1975-2000 was about twice as high (see Przybylak et al. 2004). On the other hand, mean monthly daily T ranges in Treurenberg are greater (Fig. 3). Day-to-day T changes in the annual cycle were greatest in the cold half-year, and lowest in summer (Fig. 4). These changes are lower here than in the western coastal part of Spitsbergen. Mean monthly daily courses of T are clearest from April to September, showing maximum T in the afternoon, and minimum in the early morning hours (Fig. 5). From October to March (but especially during the polar night) the average daily courses were smooth. Air humidity in Treurenberg was characterized using three commonly used variables: water vapor pressure, relative humidity, and saturation deficit. Due to very low T and quite a large thermic continentality of the climate in NE Spitsbergen, water vapor pressure in Treurenberg is lower than in the western coastal part of Spitsbergen. The highest values in Treurenberg occurred in summer (on average about 6 hPa) and the lowest in late winter (below 1 hPa) (Tab. 2, Fig. 6). Generally, similar relations in the annual march are also seen for two other air humidity variables (see Tab. 2, Fig. 6). The annual cycles of day-to-day changes of all humidity variables in Treurenberg are not clear, as they consist of many maximums and minimums (Fig. 7). These changes are lower here than in other parts of Spitsbergen (see Table 15 in Przybylak 1992a). Mean daily courses of relative humidity are smooth for most months. Only in April and in the period from June to September do we see normal daily cycles with lowest values in 'day' hours and highest values in 'night' hours (Fig. 9). The annual course of T in the Olimp station is similar to that occurring in Treurenberg (Figs. 2 and 10). Of course, the upper station was colder, but only by 1oC for mean annual values (Fig. 11). The drop of T in the Treurenberg region - a drop that is lower than is normally observed in the atmosphere (0.6oC/100 m) - was probably caused by measurement errors (the thermograph at the Olimp station was wrapped in thin material in order to stop the snow accumulating around the metallic sensor). Only limited air humidity data were gathered for the Olimp station due to measurement problems of this element in cold half-year. Therefore, most observations were made only in summer, and they show that the relative humidity was in most cases greater here than at the Treurenberg station. The investigation shows that weather conditions in the NE part of Spitsbergen differ significantly from those observed in the western coastal part of the island. Both T and air humidity are significantly lower in the study area, and these differences in the case of T are especially large in winter.
Źródło:
Problemy Klimatologii Polarnej; 2004, 14; 133-147
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie wybranych elementów meteorologicznych w sezonie letnim 2011 roku między stacjami Calypsobyen i Akseloya (W Spitsbergen)
Comparison of some selected meteorological elements of the summer season 2011 between Calypsobyen and Akseloya stations (W Spitsbergen)
Autorzy:
Styszyńska, A.
Siwek, K.
Gluza, A.
Powiązania:
https://bibliotekanauki.pl/articles/260755.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatura powietrza
wiatr
Akseloya
Calypsobyen
Spitsbergen
air temperature
wind
Opis:
W pracy przedstawiono zróżnicowanie warunków meteorologicznych jakie występuje latem w rejonie Bellsundu. Analizą objęto okres od 23 czerwca do 1 września 2011 roku. Długość serii pomiarowej wynika z terminu rozpoczęcia i zakończenia Wyprawy UMCS na Spitsbergen. W pracy przeanalizowano zmienność temperatury powietrza oraz kierunku i prędkości wiatru na stacjach Calypsobyen i Akseloya. W badanym czasie na stacji Akseloya dominuje wiatr NE, a subdominuje wiatr z SW, natomiast na stacji Calypsobyen odpowiednio wiatry z ENE i NW. Na obu stacjach średnie prędkości wiatru są zbliżone. Przy wszystkich kierunkach wiatru, poza sektorem SW, temperatura powietrza na stacji Akseloya jest wyższa niż na Calypsobyen. Największe różnice temperatury występują przy wiatrach z ESE (4,3 deg). Występowanie wyraźnego ocieplenia na stacji Akseloya przy wiatrach z sektora E – SSE wiązać należy ze zjawiskami fenowymi.
The paper presents a variation of meteorological conditions that are observed during summer in the region of Bellsund. The analysis covered the period from 21 June to 1 September 2011. The length of the measurement series results from the date of commencement and completion of UMCS Expedition to Spitsbergen. The paper examines the variability of air temperature and wind direction and speed at the Calypsobyen and Akseloya stations. In the analyzed period, NE wind dominates at the Akseloya station and SW wind sub-dominates there whereas at the Calypsobyen station winds from ENE and NW respectively. The average wind speeds at both stations are similar. For all wind directions, outside the SW sector, the air temperature at the Akseloya station is higher than at the Calypsobyen station. The largest temperature differences occur when winds from ESE (4.3 deg) are observed. The presence of visible warming at the Akseloya station during winds from the E-SSE sector should be associated with the phenomenon of foehn winds.
Źródło:
Problemy Klimatologii Polarnej; 2013, 23; 157-168
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odczuwalność cieplna w okresie zimowym w rejonie Polskiej Stacji Polarnej w Hornsundzie w latach 1991-2000
Thermal sensations in Winter months over the Polish Polar Station in Hornsund area; 1991-2000
Autorzy:
Owczarek, M.
Powiązania:
https://bibliotekanauki.pl/articles/260653.pdf
Data publikacji:
2004
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
Spitsbergen
temperatury powietrza
odczuwalność cieplna
air temperature
thermal sensations
Opis:
Evaluation of thermal conditions on polar station is the subject of this paper. Calculations based on the Polish Polar Station in Hornsund data at 06, 12 and 18 GMT in the period 1991-2000. Three bio-meteorological indices were analyzed: Wind Chill Index (WCI) according to Siple-Passel formula (1945), Wind Chill Temperature Index (WCTI) based on new American and Canadian formula (2002) and Insulation Predicted (Iclp) according to Burton-Edholm formula (1955). Hypothermic conditions were noticed most often (60-90%) during considered period. Comfortable thermal conditions took below 10% causes per month only. The risk of frostbite of exposed skin could be noticed from November to April from 1% to over 18% causes per moth. The most severe conditions were occurred in February. There is a necessary to use clothes of over 4 clo thermal insulation and wind-protectors for most of considered period. There is also the need for keeping active, covering exposed skin and being ready to short outdoor activities.
Źródło:
Problemy Klimatologii Polarnej; 2004, 14; 171-182
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola cyrkulacji atmosfery w kształtowaniu temperatury powietrza w styczniu na Spitsbergenie
Role of atmospheric circulation on the January temperature variability in Spitsbergen
Autorzy:
Niedźwiedź, T.
Powiązania:
https://bibliotekanauki.pl/articles/260696.pdf
Data publikacji:
2004
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
cyrkulacja atmosfery
Spitsbergen
temperatury powietrza
atmospheric circulation
air temperature
Opis:
The study presents variability of simple circulation indices above Spitsbergen for the period 1899-2004 in January, based on original calendar of synoptic divided from the synoptic maps. After calculation of synoptic types frequencies the further results have been obtained using the simple circulation indices: W - westerly, zonal index, S - southerly - meridional index, C - cyclonicity index, as proposed by R. Murray and R. Lewis (1966) with some modifications, as well as Spitsbergen Oscillation (OS) defined as the standarized pressure difference between Bjornoya and Longyearbyen. The negative value of W index is typical for Spitsbergen, according to great frequency of eastern airflow. Variability of January temperature in Svalbard (t01SV) were investigated on the basis of averages from four stations: Isfjord Radio and Svalbard Lufthavn, as well as from Polish Polar Station in Hornsund Fiord on SW part of Spitsbergen, and from Bjornoya (Bear Island) - about 300 km SSE from Hornsund. After reconstructions of some lack data on the basis of linear regression, temperature data were obtained for the period of 1912-2004. For the temperature the main feature is period of cooling in the years 1912-1918 and then the great warming during the decade of 1930th (1933-1937). During the years 1937-1971 was observed the significant decreasing trend in January temperature to the cool period of years 1962-1971. The last period 1971-2004 has no any trend in temperature. But three large fluctuations took place with warm Januarys of 1972-1974, 1990-1992 and 1999-2001 and cool ones of 1975-1982, 1993-1998 and 2002-2004. Temperature of January changes in Spitsbergen depend on a great extend of circulation factors, mainly from the southern (S) and zonal circulation indices (W) or Spitsbergen Oscillation index (SO). Using the models of multiple regression was possible the recontruction of January temperature since 1899 on the basis of circulation indices. They explained about 63% of variance in temperature.
Źródło:
Problemy Klimatologii Polarnej; 2004, 14; 59-68
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przebieg wartości wskaźnika oceanizmu na Szetlandach Południowych według zweryfikowanych danych połączonego ciągu Deception-Bellingshausen (1944-2000)
The course of oceanicity index in the South Shetlands on the basis of verified data of the 'syntetic' Deception-Bellingshausen series (1947-2000)
Autorzy:
Styszyńska, A.
Zblewski, S.
Powiązania:
https://bibliotekanauki.pl/articles/260891.pdf
Data publikacji:
2002
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
Szetlandy Południowe
temperatury powietrza
South Shetland Islands
air temperature
Opis:
This article presents the characteristic of the course of oceanicity index (Oc) in the region of the South Shetlands and its correlation with ENSO. The research made use of reconstructed by Lagun and Marshall (2001) series of monthly air temperatures at Bellingshausen station (1947-2000). The values of Oc have been calculated both for a calendar and hydrologic years (May - April) with a formulae given by Marsz (1995). Series of Southern Oscillation indexes (SOI) obtained from CRU has been used to examine correlation between Oc and ENSO. Periods of smaller and greater changes in Oc index were observed to take place one following another in the said period (Fig. 1) and a good proportion of the years was marked by ultraoceanicity. A posotive trend appearing in the series turned to be not statistically significant (Fig. 3). The analysis showed 2-year and 6-year periodiciy in the series of Oc index. Correlation between oceanicity index and mean annual air temperature (Fig. 2) and minimum temperature is characterised by high statistical significance. The fact that most significant correlation occurs in winter may prove that changes in ice condition have great influence on the increase in the frequency of occurrence of fresh sea air masses. The obtained results point to a tendency that the increase in air temperature in the region of the South Shetlands and the northern coast of the Antarctic Peninsula is followed by the increase in the transport of heat from the ocean to the atmosphere, represented by the increase in oceanicity index. At this stage we obtain quite paradoxical picture, i.e. the increase in the transfer of heat from the surface of the ocean should be accompanied by great rise in air temperature in winter, that is in the period when the intensity of heat transfer from the ocean to the atmosphere reaches greatest values. However, the analysis of trends indicated that the greatest rise in temperature was observed in the warmest month and in summer temperatures, that is in the periods when the heat transfer from the ocean to the atmosphere was least intensive. This means, that a possible cause ? effect sequence relating the increase in air temperature to the intensity of ocean influence observed in this area must be more comlicated than it is usually observed. Quite clear correlations may by noted here, although occurring with a long, 2-year time shift between the Oc and SOI. Such a great time shift suggests that the correlation between those variables cannot by governed by direct atmospheric circulation but there must be an in direct inertion linking element that retards the effect of temperature increase. The only possible link of this type ocean. The mechanisms that cause the shift of the maximum increase in the transfer of heat from the ocean to the air in winter to the increase in air temperature in summer are not clear. The co-author research results obtained so far seem to indicate that the mechanism responsible for the shift may be attributed to large scale changes in sea surface temperature reflected in changes in sea ice cover extent and its concentration.
Źródło:
Problemy Klimatologii Polarnej; 2002, 12; 21-32
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
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