SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK
During the 45th–57th Russian Antarctic Expeditions (1999–2012) an intensive program of glaciological and geophysical observations have been carried out in the region between the subglacial Lake Vostok and the Ridge B, Сentral Antarctica. In this work we present the instrumentally obtained snow accum...
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| Language: | Russian |
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Nauka
2015-11-01
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| Series: | Лëд и снег |
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| Online Access: | https://ice-snow.igras.ru/jour/article/view/215 |
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| author | A. A. Ekaykin V. Ya. Lipenkov Yu. A. Shibaev |
| author_facet | A. A. Ekaykin V. Ya. Lipenkov Yu. A. Shibaev |
| author_sort | A. A. Ekaykin |
| collection | DOAJ |
| description | During the 45th–57th Russian Antarctic Expeditions (1999–2012) an intensive program of glaciological and geophysical observations have been carried out in the region between the subglacial Lake Vostok and the Ridge B, Сentral Antarctica. In this work we present the instrumentally obtained snow accumulation data along the northern (NVFL) and southern (VFL) ice flow lines passing through the Lake Vostok. The mean accumulation rate at the NVFL and VFL profiles is 29–37 kg m-2 yr-1 and 21–24 kg m-2 yr-1, respectively. Thus, this region is characterized by a strong latitudinal gradient of the snow accumulation rate, while the longitudinal one is an order of magnitude less. The spatial distribution of the accumulation rate along the VFL is characterized by a sharp variability attributed to the snow re-deposition due to the wind interplay with the local glacier surface slope anomalies. The new data on the stable water isotope concentration (18O) along the VFL profile are also presented. |
| format | Article |
| id | doaj-art-9254d4b652a24e0e8bdf0c94ab396444 |
| institution | DOAJ |
| issn | 2076-6734 2412-3765 |
| language | Russian |
| publishDate | 2015-11-01 |
| publisher | Nauka |
| record_format | Article |
| series | Лëд и снег |
| spelling | doaj-art-9254d4b652a24e0e8bdf0c94ab3964442025-08-20T03:00:46ZrusNaukaЛëд и снег2076-67342412-37652015-11-0152412212810.15356/2076-6734-2012-4-122-128202SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOKA. A. Ekaykin0V. Ya. Lipenkov1Yu. A. Shibaev2Arctic and Antarctic Research Institute, St. PetersburgArctic and Antarctic Research Institute, St. PetersburgArctic and Antarctic Research Institute, St. PetersburgDuring the 45th–57th Russian Antarctic Expeditions (1999–2012) an intensive program of glaciological and geophysical observations have been carried out in the region between the subglacial Lake Vostok and the Ridge B, Сentral Antarctica. In this work we present the instrumentally obtained snow accumulation data along the northern (NVFL) and southern (VFL) ice flow lines passing through the Lake Vostok. The mean accumulation rate at the NVFL and VFL profiles is 29–37 kg m-2 yr-1 and 21–24 kg m-2 yr-1, respectively. Thus, this region is characterized by a strong latitudinal gradient of the snow accumulation rate, while the longitudinal one is an order of magnitude less. The spatial distribution of the accumulation rate along the VFL is characterized by a sharp variability attributed to the snow re-deposition due to the wind interplay with the local glacier surface slope anomalies. The new data on the stable water isotope concentration (18O) along the VFL profile are also presented.https://ice-snow.igras.ru/jour/article/view/215antarcticaice flow linessnow accumulationsnow densitysnow isotope contentspatial variability |
| spellingShingle | A. A. Ekaykin V. Ya. Lipenkov Yu. A. Shibaev SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK Лëд и снег antarctica ice flow lines snow accumulation snow density snow isotope content spatial variability |
| title | SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK |
| title_full | SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK |
| title_fullStr | SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK |
| title_full_unstemmed | SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK |
| title_short | SPATIAL DISTRIBUTION OF THE SNOW ACCUMULATION RATE ALONG THE ICE FLOW LINES BETWEEN RIDGE B AND LAKE VOSTOK |
| title_sort | spatial distribution of the snow accumulation rate along the ice flow lines between ridge b and lake vostok |
| topic | antarctica ice flow lines snow accumulation snow density snow isotope content spatial variability |
| url | https://ice-snow.igras.ru/jour/article/view/215 |
| work_keys_str_mv | AT aaekaykin spatialdistributionofthesnowaccumulationratealongtheiceflowlinesbetweenridgebandlakevostok AT vyalipenkov spatialdistributionofthesnowaccumulationratealongtheiceflowlinesbetweenridgebandlakevostok AT yuashibaev spatialdistributionofthesnowaccumulationratealongtheiceflowlinesbetweenridgebandlakevostok |