Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data
By using SatGravRET2014 gravito-topography model, based also on satellite GRACE and GOCE data, we cornputed and plotted the gravity disturbances, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angle and the virtua...
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Online Access: | http://hdl.handle.net/10084/131614 https://doi.org/10.1016/j.polar.2018.05.002 |
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fttuostrava:oai:dspace.vsb.cz:10084/131614 2023-05-15T13:53:31+02:00 Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš Pešek, Ivan Cílek, Václav 2018 http://hdl.handle.net/10084/131614 https://doi.org/10.1016/j.polar.2018.05.002 en eng Elsevier Polar Science http://doi.org/10.1016/j.polar.2018.05.002 © 2018 Elsevier B.V. and NIPR. All rights reserved. Antarctica subglacial lakes Lake Vostok gravity field gravity model SatGravRET2014 Bedmap 2 bedrock topography gravity aspects article Peer-reviewed 2018 fttuostrava https://doi.org/10.1016/j.polar.2018.05.002 2019-06-22T11:11:07Z By using SatGravRET2014 gravito-topography model, based also on satellite GRACE and GOCE data, we cornputed and plotted the gravity disturbances, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angle and the virtual deformations for the Lake Vostok (LV) area in Antarctica. This set of gravity "aspects" provides more detailed and clearer information than the traditional gravity anomalies. Maps with the bedrock topography from Bedmap 2 are added. Some of our estimates and results confirm independent findings of other specialists, some results presented here are new. LV is divided not only into its N and S parts by a ridge, but also to E and W parts. A tension across LV has a prevailing direction E-W. We identified at least three candidates for subglacial lakes south of the lakes 90 E and Sovetskaya. In the gravity aspects this area looks like a basin, where the mentioned lakes might be just a remnant of a large bowl; the orientation of this basin is the same as that of LV; the size comparable to LV. A subglacial connection between all the mentioned lakes is possible and documented via the gravity aspects, namely by the virtual deformations. Web of Science 17 74 59 Article in Journal/Newspaper Antarc* Antarctica Polar Science Polar Science Technical University of Ostrava: DSpace VŠB-TUO Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) Sovetskaya ENVELOPE(178.855,178.855,71.164,71.164) Polar Science 17 59 74 |
institution |
Open Polar |
collection |
Technical University of Ostrava: DSpace VŠB-TUO |
op_collection_id |
fttuostrava |
language |
English |
topic |
Antarctica subglacial lakes Lake Vostok gravity field gravity model SatGravRET2014 Bedmap 2 bedrock topography gravity aspects |
spellingShingle |
Antarctica subglacial lakes Lake Vostok gravity field gravity model SatGravRET2014 Bedmap 2 bedrock topography gravity aspects Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš Pešek, Ivan Cílek, Václav Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
topic_facet |
Antarctica subglacial lakes Lake Vostok gravity field gravity model SatGravRET2014 Bedmap 2 bedrock topography gravity aspects |
description |
By using SatGravRET2014 gravito-topography model, based also on satellite GRACE and GOCE data, we cornputed and plotted the gravity disturbances, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angle and the virtual deformations for the Lake Vostok (LV) area in Antarctica. This set of gravity "aspects" provides more detailed and clearer information than the traditional gravity anomalies. Maps with the bedrock topography from Bedmap 2 are added. Some of our estimates and results confirm independent findings of other specialists, some results presented here are new. LV is divided not only into its N and S parts by a ridge, but also to E and W parts. A tension across LV has a prevailing direction E-W. We identified at least three candidates for subglacial lakes south of the lakes 90 E and Sovetskaya. In the gravity aspects this area looks like a basin, where the mentioned lakes might be just a remnant of a large bowl; the orientation of this basin is the same as that of LV; the size comparable to LV. A subglacial connection between all the mentioned lakes is possible and documented via the gravity aspects, namely by the virtual deformations. Web of Science 17 74 59 |
format |
Article in Journal/Newspaper |
author |
Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš Pešek, Ivan Cílek, Václav |
author_facet |
Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš Pešek, Ivan Cílek, Václav |
author_sort |
Klokočník, Jaroslav |
title |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
title_short |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
title_full |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
title_fullStr |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
title_full_unstemmed |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
title_sort |
gravito-topographic signal of the lake vostok area, antarctica, with the most recent data |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://hdl.handle.net/10084/131614 https://doi.org/10.1016/j.polar.2018.05.002 |
long_lat |
ENVELOPE(106.000,106.000,-77.500,-77.500) ENVELOPE(178.855,178.855,71.164,71.164) |
geographic |
Lake Vostok Sovetskaya |
geographic_facet |
Lake Vostok Sovetskaya |
genre |
Antarc* Antarctica Polar Science Polar Science |
genre_facet |
Antarc* Antarctica Polar Science Polar Science |
op_relation |
Polar Science http://doi.org/10.1016/j.polar.2018.05.002 |
op_rights |
© 2018 Elsevier B.V. and NIPR. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.polar.2018.05.002 |
container_title |
Polar Science |
container_volume |
17 |
container_start_page |
59 |
op_container_end_page |
74 |
_version_ |
1766258698221518848 |