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 computed 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...
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ftnipr:oai:nipr.repo.nii.ac.jp:00015104 2023-05-15T13:49:00+02:00 Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data 2018-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15104 http://id.nii.ac.jp/1291/00015014/ en eng https://doi.org/10.1016/j.polar.2018.05.002 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15104 http://id.nii.ac.jp/1291/00015014/ Polar Science, 17, 59-74(2018-09) 18739652 Antarctica Subglacial lakes Lake Vostok Gravity field Gravity model SatGravRET2014 Bedmap 2 bedrock topography Gravity aspects Journal Article 2018 ftnipr https://doi.org/10.1016/j.polar.2018.05.002 2022-12-03T19:43:10Z By using SatGravRET2014 gravito-topography model, based also on satellite GRACE and GOCE data, we computed 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. Article in Journal/Newspaper Antarc* Antarctica Polar Science Polar Science National Institute of Polar Research Repository, Japan 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 |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
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 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 computed 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. |
format |
Article in Journal/Newspaper |
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 |
publishDate |
2018 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15104 http://id.nii.ac.jp/1291/00015014/ |
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 |
https://doi.org/10.1016/j.polar.2018.05.002 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=15104 http://id.nii.ac.jp/1291/00015014/ Polar Science, 17, 59-74(2018-09) 18739652 |
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_ |
1766250381735624704 |