Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2018-09-04 |
タイトル |
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タイトル |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
タイトル |
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言語 |
en |
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タイトル |
Gravito-topographic signal of the Lake Vostok area, Antarctica, with the most recent data |
言語 |
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言語 |
eng |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Antarctica |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Subglacial lakes |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Lake Vostok |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Gravity field |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Gravity model SatGravRET2014 |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Bedmap 2 bedrock topography |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Gravity aspects |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
著者 |
Klokočník, Jaroslav
Kostelecký, Jan
Cílek, Václav
Bezděk, Aleš
Pešek, Ivan
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抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
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. |
書誌情報 |
en : Polar Science
巻 17,
p. 59-74,
発行日 2018-09
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ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
18739652 |
DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.polar.2018.05.002 |
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関連名称 |
10.1016/j.polar.2018.05.002 |