Wszystkie pola: ablation season - Katalog OPAC zbiorów

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Tytuł:: Topoclimatic conditions in the Hornsund area ( SW Spitsbergen ) during the ablation season 2005
Autorzy:: Migała, Krzysztof
Nasiółkowski, Tomasz
Pereyma, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/2051834.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
Spitsbergen
Hornsund
topoclimate
thermal gradient
Źródło:: Polish Polar Research; 2008, 29, 1; 73-91
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Charakterystyka zmienności pokrywy śnieżnej w sezonie letnim (ablacyjnym) na lodowcach rejonu Kaffioyry (NW Spitsbergen)
Characteristics of snow cover variability on Kaffioyras glaciers during summer season (ablation season), Spitsbergen
Autorzy:: Sobota, I.
Powiązania:: https://bibliotekanauki.pl/articles/260727.pdf
Data publikacji:: 2007
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: akumulacja śniegu
ablacja
lodowce
Svalbard
Kaffioyra
ablation season
snow accumulation
glaciers
Opis:: Przeanalizowano wielkość oraz przestrzenną zmienność akumulacji śniegu na lodowcach rejonu Kaffioyry w sezonie letnim 2006 roku. Pokrywa śnieżna na lodowcach Waldemara i Ireny występowała do połowy sierpnia, a w najwyższych partiach pól akumulacyjnych i u podnóża stoków górskich przez cały sezon ablacyjny. W przypadku Lodowca Elizy pod koniec sezonu śnieg zajmował wyraźnie większą powierzchnię. Na podstawie szczegółowych pomiarów dokonano oceny zmienności akumulacji z wysokością nad poziomem morza oraz zróżnicowanie gęstości śniegu. Pozwoliło to określić ekwiwalent wodny pokrywy śnieżnej. Stwierdzono, że znajomość miąższości i przestrzennego zróżnicowania pokrywy śnieżnej w okresie letnim oraz stref glacjalnych na lodowcu stanowi ważny element w badaniach i ocenie tempa ablacji lodowcowej.
Size and spatial variability of snow accumulation on the Kaffiřyra glaciers were analysed in the summer of 2006. The values of accumulation changeability at the growing altitude and the diversity of accumulation density were based on detailed measurements. This enabled to estimate the thickness of the snow cover in water equivalent (w.e.). In the summer season of 2006 average snow accumulation on the Waldemar Glacier was 9.3 cm of water equivalent. On average, it changed from 24.1 cm w.e. at the beginning of the summer season to 1.1 cm w.e. in August. Mean snow accumulation on the Irene Glacier amounted to 7.3 cm e.w.; on average it changed from 15.6 to 1.0 cm w.e. Mean snow accumulation on the Elise Glacier was 25.8 cm w.e. and it changed from 36.1 July to 12.0 cm w.e. at the end of August. The largest diversity of snow accumulation at the growing altitude was recorded on the Elise Glacier. From both the Waldemar Glacier and Irene Glacier the snow cover disappeared quickly. As a result, at the end of the ablation season snow was only visible in the upper parts of the accumulation zones of those glaciers and at the foot of the mountain slopes. The Elise Glacier had a longer-lasting snow cover on large areas which survived until the end of the season. This was not only the outcome of the weather conditions but, predominantly, larger altitude diversity between the snout of this glacier and its accumulative pars as well. In higher parts of the glacier a larger snow loss in time is recorded. Mean snow thickness in the summer season is nearly twice higher than during the spring season with the snow cover. There is a correlation between the snow cover thickness and the altitude. However, with time and the diminishing snow cover this interrelation is less distinct. Another distinct interrelation exists between spatial diversity of snow accumulation and the size and spatial diversity of snow ablation. Melting of the snow cover during the summer season favours the creation of different glacial zones which influence the intensity of summer ablation. The knowledge of the thickness and spatial variability of the snow cover during the summer season, as well as the glacial zones poses an important element of the study and assessment of the rate of glacial ablation.
Źródło:: Problemy Klimatologii Polarnej; 2007, 17; 135-145
1234-0715
Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Wpływ warunków pogodowych na zmionność ablacji lodowców Waldemara i Ireny (NW Spitsbergen) w sezonie latnim 2003 roku
Influence of meteorological conditions on ablation of Waldemar Glacier and Irene Glacier (NW Spitsbergen) in the Summer season of 2003
Autorzy:: Sobota, I.
Powiązania:: https://bibliotekanauki.pl/articles/260688.pdf
Data publikacji:: 2004
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: Spitsbergen
warunki pogodowe
Lodowiec Waldemara
Lodowiec Ireny
ablacja
meteorological conditions
Waldemar Glacier
Irene Glacier
ablation
Opis:: The paper presents the results of meteorological measurements carried out in the Kaffioyra Plain in the summer season of 2003. The main meteorological observations were conducted in N.Copernicus Polar Station, situated in northern part of the Kaffioyra (NW Spitsbergen). The paper also presents the results of ablation measurements on the Waldemar Glacier and Irene Glacier, which are located at Kaffioyra Region. The mean air temperature in the summer period (21.07. to 31.08.2003) was 6.1°C and was visibly higher then the long-term average. The sum of precipitation in this time was 74 mm and was higher then the long-term average. The comparison between summer season 2003 and mean values from the years 1975-2003 in the common period shows that this season was characterised by air temperature higher then many year?s values. The Waldemar Glacier and Irene Glacier are located in the northern part of the Oscar II Land, northwestern Spitsbergen. In spite of small areas of these glaciers, there is great spatial variation of ablation. Both Waldemar Glacier and Irene Glacier area and the height difference between the accumulation zone and the ablation area are relatively small. Nevertheless, spatial variation of ablation is observed. In this summer season the highest ablation values of Waldemar Glacier were noted in the ablation area of the glacier up to the altitude of about 250 m a.s.l., as well as at the foot of its medial moraine. The highest ablation values of Irene Glacier were noted in the ablation area of the glacier up to the altitude of about 300 m a.s.l.. During the analysed season a high average air temperature was observed. It resulted in increased ablation if compared to the previous seasons. Average air temperature and local glacier conditions were accepted as the main factors of ablation. The glacier average total summer ablation of Waldemar Glacier was 118.1 cm w.e. And Irene Glacier 111.1 cm w.e., respectively. The main meteorological parameters, which have an influence on ablation, are air temperature, wind velocity, insolation and participation. But it must be stressed that these parameters are clearly determined by local conditions of glaciers such as hypsometry, solar exposition, slope as well as density and the course of supraglacial streams.
Źródło:: Problemy Klimatologii Polarnej; 2004, 14; 95-106
1234-0715
Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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