DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA
Progress in understanding cascades of subglacial lakes inAntarcticaand surface dynamics was derived using satellite laser altimetry measurements ICESat. The morphological and dynamical pattern troughs and swells indicate subglacial lakes and positions of their shorelines. Oscillations of surfaces in...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
Nauka
2015-11-01
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| Series: | Лëд и снег |
| Subjects: | |
| Online Access: | https://ice-snow.igras.ru/jour/article/view/212 |
| _version_ | 1797878184998338560 |
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| author | V. M. Kotlyakov L. N. Vasiliev A. B. Kachalin M. Yu. Moskalevsky A. S. Tyuflin |
| author_facet | V. M. Kotlyakov L. N. Vasiliev A. B. Kachalin M. Yu. Moskalevsky A. S. Tyuflin |
| author_sort | V. M. Kotlyakov |
| collection | DOAJ |
| description | Progress in understanding cascades of subglacial lakes inAntarcticaand surface dynamics was derived using satellite laser altimetry measurements ICESat. The morphological and dynamical pattern troughs and swells indicate subglacial lakes and positions of their shorelines. Oscillations of surfaces in transition zones are periodic, while the changes in surface elevation above subglacial lakes are random. Elevation change in cascade occurs out of phase. The standard deviation for elevation for transition zones is100 cm, in contrast to10 cmabove the subglacial lakes. Complete insight into the cascade process and fluctuations of surface above the adjacent lakes in space and time has been derived using spectrogram. The pattern of surface displacements above cascades of subglacial lakes inAntarcticaand their transition zones are similar. In the sense of technology, the paper initiates the method of mapping subglacial lakes based on satellite laser measurements of elevation. |
| first_indexed | 2024-04-10T02:29:46Z |
| format | Article |
| id | doaj.art-e053252f27314c1f9691814d12aef711 |
| institution | Directory Open Access Journal |
| issn | 2076-6734 2412-3765 |
| language | Russian |
| last_indexed | 2024-04-10T02:29:46Z |
| publishDate | 2015-11-01 |
| publisher | Nauka |
| record_format | Article |
| series | Лëд и снег |
| spelling | doaj.art-e053252f27314c1f9691814d12aef7112023-03-13T08:01:17ZrusNaukaЛëд и снег2076-67342412-37652015-11-015249710310.15356/2076-6734-2012-4-97-103199DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICAV. M. Kotlyakov0L. N. Vasiliev1A. B. Kachalin2M. Yu. Moskalevsky3A. S. Tyuflin4Институт географии РАН, МоскваИнститут географии РАН, МоскваИнститут географии РАН, МоскваИнститут географии РАН, МоскваИнститут географии РАН, МоскваProgress in understanding cascades of subglacial lakes inAntarcticaand surface dynamics was derived using satellite laser altimetry measurements ICESat. The morphological and dynamical pattern troughs and swells indicate subglacial lakes and positions of their shorelines. Oscillations of surfaces in transition zones are periodic, while the changes in surface elevation above subglacial lakes are random. Elevation change in cascade occurs out of phase. The standard deviation for elevation for transition zones is100 cm, in contrast to10 cmabove the subglacial lakes. Complete insight into the cascade process and fluctuations of surface above the adjacent lakes in space and time has been derived using spectrogram. The pattern of surface displacements above cascades of subglacial lakes inAntarcticaand their transition zones are similar. In the sense of technology, the paper initiates the method of mapping subglacial lakes based on satellite laser measurements of elevation.https://ice-snow.igras.ru/jour/article/view/212антарктидаповерхность ледникаподледниковые озёра |
| spellingShingle | V. M. Kotlyakov L. N. Vasiliev A. B. Kachalin M. Yu. Moskalevsky A. S. Tyuflin DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA Лëд и снег антарктида поверхность ледника подледниковые озёра |
| title | DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA |
| title_full | DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA |
| title_fullStr | DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA |
| title_full_unstemmed | DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA |
| title_short | DYNAMICS OF ICE SHEET SURFACE OVER SUBGLACIAL LAKES IN ANTARCTICA |
| title_sort | dynamics of ice sheet surface over subglacial lakes in antarctica |
| topic | антарктида поверхность ледника подледниковые озёра |
| url | https://ice-snow.igras.ru/jour/article/view/212 |
| work_keys_str_mv | AT vmkotlyakov dynamicsoficesheetsurfaceoversubglaciallakesinantarctica AT lnvasiliev dynamicsoficesheetsurfaceoversubglaciallakesinantarctica AT abkachalin dynamicsoficesheetsurfaceoversubglaciallakesinantarctica AT myumoskalevsky dynamicsoficesheetsurfaceoversubglaciallakesinantarctica AT astyuflin dynamicsoficesheetsurfaceoversubglaciallakesinantarctica |