Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data
Marine gravity anomalies over the area 82°S to 82°N and 0°E to 360°E on a 2′× 2′ grid have been derived from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data. The inverse Vening Meinesz formula with a 1-D FFT method was used to compute gravity anomalies from gridded north-south and west-east...
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fthighwire:oai:open-archive.highwire.org:gji:134/2/449 2023-05-15T13:52:21+02:00 Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data Hwang, Cheinway Kao, Eu-Chi Parsons, Barry 1998-08-01 00:00:00.0 text/html http://gji.oxfordjournals.org/cgi/content/short/134/2/449 https://doi.org/10.1111/j.1365-246X.1998.tb07139.x en eng Oxford University Press http://gji.oxfordjournals.org/cgi/content/short/134/2/449 http://dx.doi.org/10.1111/j.1365-246X.1998.tb07139.x Copyright (C) 1998, Oxford University Press Articles TEXT 1998 fthighwire https://doi.org/10.1111/j.1365-246X.1998.tb07139.x 2015-02-28T21:53:18Z Marine gravity anomalies over the area 82°S to 82°N and 0°E to 360°E on a 2′× 2′ grid have been derived from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data. The inverse Vening Meinesz formula with a 1-D FFT method was used to compute gravity anomalies from gridded north-south and west-east geoid gradients, in a remove—restore procedure with the EGM96 gravity model as the reference field. This paper presents a new gridding technique and an altimeter data management system that help to extract data efficiently. In the 12 areas where ship-measured gravity and satellite-derived gravity were compared, rms agreements of 5–14 mgal were obtained. Special discussions of the gravity anomalies over selected inland seas, the Arctic, Antarctica and coastal waters are presented. The derived gravity anomalies show detailed tectonic structures of the world ocean. The global data set will be continuously updated with more altimeter data included in the derivation. Text Antarc* Antarctica Arctic HighWire Press (Stanford University) Arctic Geophysical Journal International 134 2 449 459 |
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HighWire Press (Stanford University) |
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English |
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Articles Hwang, Cheinway Kao, Eu-Chi Parsons, Barry Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data |
topic_facet |
Articles |
description |
Marine gravity anomalies over the area 82°S to 82°N and 0°E to 360°E on a 2′× 2′ grid have been derived from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data. The inverse Vening Meinesz formula with a 1-D FFT method was used to compute gravity anomalies from gridded north-south and west-east geoid gradients, in a remove—restore procedure with the EGM96 gravity model as the reference field. This paper presents a new gridding technique and an altimeter data management system that help to extract data efficiently. In the 12 areas where ship-measured gravity and satellite-derived gravity were compared, rms agreements of 5–14 mgal were obtained. Special discussions of the gravity anomalies over selected inland seas, the Arctic, Antarctica and coastal waters are presented. The derived gravity anomalies show detailed tectonic structures of the world ocean. The global data set will be continuously updated with more altimeter data included in the derivation. |
format |
Text |
author |
Hwang, Cheinway Kao, Eu-Chi Parsons, Barry |
author_facet |
Hwang, Cheinway Kao, Eu-Chi Parsons, Barry |
author_sort |
Hwang, Cheinway |
title |
Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data |
title_short |
Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data |
title_full |
Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data |
title_fullStr |
Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data |
title_full_unstemmed |
Global derivation of marine gravity anomalies from Seasat, Geosat, ERS-1 and TOPEX/POSEIDON altimeter data |
title_sort |
global derivation of marine gravity anomalies from seasat, geosat, ers-1 and topex/poseidon altimeter data |
publisher |
Oxford University Press |
publishDate |
1998 |
url |
http://gji.oxfordjournals.org/cgi/content/short/134/2/449 https://doi.org/10.1111/j.1365-246X.1998.tb07139.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic |
genre_facet |
Antarc* Antarctica Arctic |
op_relation |
http://gji.oxfordjournals.org/cgi/content/short/134/2/449 http://dx.doi.org/10.1111/j.1365-246X.1998.tb07139.x |
op_rights |
Copyright (C) 1998, Oxford University Press |
op_doi |
https://doi.org/10.1111/j.1365-246X.1998.tb07139.x |
container_title |
Geophysical Journal International |
container_volume |
134 |
container_issue |
2 |
container_start_page |
449 |
op_container_end_page |
459 |
_version_ |
1766256632062279680 |