Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity
Marine gravity surveying in polar regions was typically difficult and costly, requiring expensive long range research vessels and ice-breakers. Satellite altimetry can recover the gravity field in these regions where it is feasible to survey with a surface vessel. Unfortunately, the data collected b...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19900011210 2023-05-15T13:58:36+02:00 Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity Haxby, W. F. Bell, R. E. Labrecque, J. L. Brozena, J. M. Unclassified, Unlimited, Publicly available Jun 1, 1989 application/pdf http://hdl.handle.net/2060/19900011210 unknown Document ID: 19900011210 Accession ID: 90N20526 http://hdl.handle.net/2060/19900011210 No Copyright CASI GEOPHYSICS Ohio State Univ., Progress in the Determination of the Earth's Gravity Field; p 52-55 1989 ftnasantrs 2019-07-21T09:13:42Z Marine gravity surveying in polar regions was typically difficult and costly, requiring expensive long range research vessels and ice-breakers. Satellite altimetry can recover the gravity field in these regions where it is feasible to survey with a surface vessel. Unfortunately, the data collected by the first global altimetry mission, Seasat, was collected only during the austral winter, producing a very poor quality gravitational filed for the southern oceans, particularly in the circum-Antarctic regions. The advent of high quality airborne gravity (Brozena, 1984; Brozena and Peters, 1988; Bell, 1988) and the availability of satellite altimetry data during the austral summer (Sandwell and McAdoo, 1988) has allowed the recovery of a free air gravity field for most of the Weddell Sea. The derivation of the gravity field from both aircraft and satellite measurements are briefly reviewed, before presenting along track comparisons and shaded relief maps of the Weddell Sea gravity field based on these two data sets. Other/Unknown Material Antarc* Antarctic Weddell Sea NASA Technical Reports Server (NTRS) Antarctic Weddell Sea Austral Weddell |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
GEOPHYSICS |
spellingShingle |
GEOPHYSICS Haxby, W. F. Bell, R. E. Labrecque, J. L. Brozena, J. M. Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity |
topic_facet |
GEOPHYSICS |
description |
Marine gravity surveying in polar regions was typically difficult and costly, requiring expensive long range research vessels and ice-breakers. Satellite altimetry can recover the gravity field in these regions where it is feasible to survey with a surface vessel. Unfortunately, the data collected by the first global altimetry mission, Seasat, was collected only during the austral winter, producing a very poor quality gravitational filed for the southern oceans, particularly in the circum-Antarctic regions. The advent of high quality airborne gravity (Brozena, 1984; Brozena and Peters, 1988; Bell, 1988) and the availability of satellite altimetry data during the austral summer (Sandwell and McAdoo, 1988) has allowed the recovery of a free air gravity field for most of the Weddell Sea. The derivation of the gravity field from both aircraft and satellite measurements are briefly reviewed, before presenting along track comparisons and shaded relief maps of the Weddell Sea gravity field based on these two data sets. |
format |
Other/Unknown Material |
author |
Haxby, W. F. Bell, R. E. Labrecque, J. L. Brozena, J. M. |
author_facet |
Haxby, W. F. Bell, R. E. Labrecque, J. L. Brozena, J. M. |
author_sort |
Haxby, W. F. |
title |
Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity |
title_short |
Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity |
title_full |
Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity |
title_fullStr |
Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity |
title_full_unstemmed |
Gravity field of the Western Weddell Sea: Comparison of airborne gravity and Geosat derived gravity |
title_sort |
gravity field of the western weddell sea: comparison of airborne gravity and geosat derived gravity |
publishDate |
1989 |
url |
http://hdl.handle.net/2060/19900011210 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic Weddell Sea Austral Weddell |
geographic_facet |
Antarctic Weddell Sea Austral Weddell |
genre |
Antarc* Antarctic Weddell Sea |
genre_facet |
Antarc* Antarctic Weddell Sea |
op_source |
CASI |
op_relation |
Document ID: 19900011210 Accession ID: 90N20526 http://hdl.handle.net/2060/19900011210 |
op_rights |
No Copyright |
_version_ |
1766266959860596736 |