Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data

We use aerogravity data to estimate the water depth of subglacial Lake Vostok in East Antarctica. The inversion produces the first bathymetry map covering the entire lake. Lake Vostok consists of two sub-basins separated by a ridge with very shallow water depths. The deeper southern sub-basin is app...

Full description

Bibliographic Details
Main Authors: Studinger, Michael, Bell, Robin E., Tikku, Anahita A.
Format: Article in Journal/Newspaper
Language:English
Published: 2004
Subjects:
Hydrology
Submarine geology
Geophysics
Antarc*
Antarctica
East Antarctica
Online Access:https://doi.org/10.7916/D8086FVN
id ftcolumbiauniv:oai:academiccommons.columbia.edu:10.7916/D8086FVN
record_format openpolar
spelling ftcolumbiauniv:oai:academiccommons.columbia.edu:10.7916/D8086FVN 2024-09-15T17:40:08+00:00 Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data Studinger, Michael Bell, Robin E. Tikku, Anahita A. 2004 https://doi.org/10.7916/D8086FVN English eng https://doi.org/10.7916/D8086FVN Hydrology Submarine geology Geophysics Articles 2004 ftcolumbiauniv https://doi.org/10.7916/D8086FVN 2024-08-23T04:10:25Z We use aerogravity data to estimate the water depth of subglacial Lake Vostok in East Antarctica. The inversion produces the first bathymetry map covering the entire lake. Lake Vostok consists of two sub-basins separated by a ridge with very shallow water depths. The deeper southern sub-basin is approximately double the spatial area of the smaller northern sub-basin. The close correlation between the pattern of basal melting and freezing and the bathymetric structure has important ramifications for the water circulation and the sediment deposition. We estimate the lake volume to be 5400 ± 1600 km^3. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Columbia University: Academic Commons
institution Open Polar
collection Columbia University: Academic Commons
op_collection_id ftcolumbiauniv
language English
topic Hydrology
Submarine geology
Geophysics
spellingShingle Hydrology
Submarine geology
Geophysics
Studinger, Michael
Bell, Robin E.
Tikku, Anahita A.
Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data
topic_facet Hydrology
Submarine geology
Geophysics
description We use aerogravity data to estimate the water depth of subglacial Lake Vostok in East Antarctica. The inversion produces the first bathymetry map covering the entire lake. Lake Vostok consists of two sub-basins separated by a ridge with very shallow water depths. The deeper southern sub-basin is approximately double the spatial area of the smaller northern sub-basin. The close correlation between the pattern of basal melting and freezing and the bathymetric structure has important ramifications for the water circulation and the sediment deposition. We estimate the lake volume to be 5400 ± 1600 km^3.
format Article in Journal/Newspaper
author Studinger, Michael
Bell, Robin E.
Tikku, Anahita A.
author_facet Studinger, Michael
Bell, Robin E.
Tikku, Anahita A.
author_sort Studinger, Michael
title Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data
title_short Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data
title_full Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data
title_fullStr Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data
title_full_unstemmed Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data
title_sort estimating the depth and shape of subglacial lake vostok's water cavity from aerogravity data
publishDate 2004
url https://doi.org/10.7916/D8086FVN
genre Antarc*
Antarctica
East Antarctica
genre_facet Antarc*
Antarctica
East Antarctica
op_relation https://doi.org/10.7916/D8086FVN
op_doi https://doi.org/10.7916/D8086FVN
_version_ 1810485098749886464

Similar Items