Recent developments in high-resolution global altimetric gravity field modeling
In recent years, dedicated effort has been made to improve high-resolution global marine gravity fields. One new global field is the Danish National Space Center (DNSC) 1-minute grid called DNSC08GRA, released in 2008. DNSC08GRA was derived from double-retracked satellite altimetry, mainly from the...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2010
|
Subjects: | |
Online Access: | https://orbit.dtu.dk/en/publications/7c64f709-5d04-4809-b362-10b575f6438b |
id |
ftdtupubl:oai:pure.atira.dk:publications/7c64f709-5d04-4809-b362-10b575f6438b |
---|---|
record_format |
openpolar |
spelling |
ftdtupubl:oai:pure.atira.dk:publications/7c64f709-5d04-4809-b362-10b575f6438b 2024-03-31T07:51:02+00:00 Recent developments in high-resolution global altimetric gravity field modeling Andersen, Ole Baltazar Knudsen, Per Berry, P. A .M. Kenyon, S. Trimmer, R. 2010 https://orbit.dtu.dk/en/publications/7c64f709-5d04-4809-b362-10b575f6438b eng eng https://orbit.dtu.dk/en/publications/7c64f709-5d04-4809-b362-10b575f6438b info:eu-repo/semantics/restrictedAccess Andersen , O B , Knudsen , P , Berry , P A M , Kenyon , S & Trimmer , R 2010 , ' Recent developments in high-resolution global altimetric gravity field modeling ' , The Leading Edge (Tulsa) , vol. 29 , no. 5 , pp. 540-545 . /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2010 ftdtupubl 2024-03-06T00:52:32Z In recent years, dedicated effort has been made to improve high-resolution global marine gravity fields. One new global field is the Danish National Space Center (DNSC) 1-minute grid called DNSC08GRA, released in 2008. DNSC08GRA was derived from double-retracked satellite altimetry, mainly from the ERS-1 geodetic mission data, augmented with new retracked GEOSAT data which have significantly enhanced the range and hence the gravity field accuracy. DNSC08GRA is the first high-resolution global gravity field to cover the entire Arctic Ocean all the way to the North Pole. Comparisons with other older gravity fields show accuracy improvement of the order of 20-40% due to a combination of retracking, enhanced processing, and the use of the new EGM2008 geoid model. In coastal and polar regions, accuracy improved in many places by 40-50% (or more) compared with older global marine gravity fields. Article in Journal/Newspaper Arctic Arctic Ocean North Pole Technical University of Denmark: DTU Orbit Arctic Arctic Ocean North Pole |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Andersen, Ole Baltazar Knudsen, Per Berry, P. A .M. Kenyon, S. Trimmer, R. Recent developments in high-resolution global altimetric gravity field modeling |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
In recent years, dedicated effort has been made to improve high-resolution global marine gravity fields. One new global field is the Danish National Space Center (DNSC) 1-minute grid called DNSC08GRA, released in 2008. DNSC08GRA was derived from double-retracked satellite altimetry, mainly from the ERS-1 geodetic mission data, augmented with new retracked GEOSAT data which have significantly enhanced the range and hence the gravity field accuracy. DNSC08GRA is the first high-resolution global gravity field to cover the entire Arctic Ocean all the way to the North Pole. Comparisons with other older gravity fields show accuracy improvement of the order of 20-40% due to a combination of retracking, enhanced processing, and the use of the new EGM2008 geoid model. In coastal and polar regions, accuracy improved in many places by 40-50% (or more) compared with older global marine gravity fields. |
format |
Article in Journal/Newspaper |
author |
Andersen, Ole Baltazar Knudsen, Per Berry, P. A .M. Kenyon, S. Trimmer, R. |
author_facet |
Andersen, Ole Baltazar Knudsen, Per Berry, P. A .M. Kenyon, S. Trimmer, R. |
author_sort |
Andersen, Ole Baltazar |
title |
Recent developments in high-resolution global altimetric gravity field modeling |
title_short |
Recent developments in high-resolution global altimetric gravity field modeling |
title_full |
Recent developments in high-resolution global altimetric gravity field modeling |
title_fullStr |
Recent developments in high-resolution global altimetric gravity field modeling |
title_full_unstemmed |
Recent developments in high-resolution global altimetric gravity field modeling |
title_sort |
recent developments in high-resolution global altimetric gravity field modeling |
publishDate |
2010 |
url |
https://orbit.dtu.dk/en/publications/7c64f709-5d04-4809-b362-10b575f6438b |
geographic |
Arctic Arctic Ocean North Pole |
geographic_facet |
Arctic Arctic Ocean North Pole |
genre |
Arctic Arctic Ocean North Pole |
genre_facet |
Arctic Arctic Ocean North Pole |
op_source |
Andersen , O B , Knudsen , P , Berry , P A M , Kenyon , S & Trimmer , R 2010 , ' Recent developments in high-resolution global altimetric gravity field modeling ' , The Leading Edge (Tulsa) , vol. 29 , no. 5 , pp. 540-545 . |
op_relation |
https://orbit.dtu.dk/en/publications/7c64f709-5d04-4809-b362-10b575f6438b |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1795029544888958976 |