Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions
International audience The ESA Gravity and steady state Ocean and Circulation Explorer, GOCE, mission will utilise the principle of satellite gravity gradiometry to measure the long to medium wavelengths in the static gravity field. Previous studies have demonstrated the low sensitivity of GOCE to o...
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ftccsdartic:oai:HAL:hal-00618179v1 2023-05-15T13:46:53+02:00 Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions Moore, Philip King, Matt A. 2010-03-01 https://hal.archives-ouvertes.fr/hal-00618179 https://hal.archives-ouvertes.fr/hal-00618179/document https://hal.archives-ouvertes.fr/hal-00618179/file/PEER_stage2_10.1016%252Fj.jog.2010.01.007.pdf https://doi.org/10.1016/j.jog.2010.01.007 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jog.2010.01.007 hal-00618179 https://hal.archives-ouvertes.fr/hal-00618179 https://hal.archives-ouvertes.fr/hal-00618179/document https://hal.archives-ouvertes.fr/hal-00618179/file/PEER_stage2_10.1016%252Fj.jog.2010.01.007.pdf doi:10.1016/j.jog.2010.01.007 info:eu-repo/semantics/OpenAccess ISSN: 0264-3707 Journal of Geodynamics https://hal.archives-ouvertes.fr/hal-00618179 Journal of Geodynamics, Elsevier, 2010, 49 (5), pp.247. ⟨10.1016/j.jog.2010.01.007⟩ GOCE gravity field temporal variations gradiometry info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1016/j.jog.2010.01.007 2020-12-26T05:30:59Z International audience The ESA Gravity and steady state Ocean and Circulation Explorer, GOCE, mission will utilise the principle of satellite gravity gradiometry to measure the long to medium wavelengths in the static gravity field. Previous studies have demonstrated the low sensitivity of GOCE to ocean tides and to temporal gravity field variations at the seasonal scale. In this study we investigate the sensitivity of satellite gradiometry missions such as GOCE to secular signals due to ice-mass change observed in Greenland and Antarctica. We show that unaccounted ice mass change signal is likely to increase GOCE-related noise but that the expected present-day polar ice mass change is below the GOCE sensitivity for an 18 month mission. Furthermore, 2-3 orders of magnitude improvement in the gradiometry in future gradiometer missions is necessary to detect ice mass change with sufficient accuracy at the spatial resolution of interest. Article in Journal/Newspaper Antarc* Antarctica Greenland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Greenland Journal of Geodynamics 49 5 247 253 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
GOCE gravity field temporal variations gradiometry |
spellingShingle |
GOCE gravity field temporal variations gradiometry Moore, Philip King, Matt A. Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
topic_facet |
GOCE gravity field temporal variations gradiometry |
description |
International audience The ESA Gravity and steady state Ocean and Circulation Explorer, GOCE, mission will utilise the principle of satellite gravity gradiometry to measure the long to medium wavelengths in the static gravity field. Previous studies have demonstrated the low sensitivity of GOCE to ocean tides and to temporal gravity field variations at the seasonal scale. In this study we investigate the sensitivity of satellite gradiometry missions such as GOCE to secular signals due to ice-mass change observed in Greenland and Antarctica. We show that unaccounted ice mass change signal is likely to increase GOCE-related noise but that the expected present-day polar ice mass change is below the GOCE sensitivity for an 18 month mission. Furthermore, 2-3 orders of magnitude improvement in the gradiometry in future gradiometer missions is necessary to detect ice mass change with sufficient accuracy at the spatial resolution of interest. |
format |
Article in Journal/Newspaper |
author |
Moore, Philip King, Matt A. |
author_facet |
Moore, Philip King, Matt A. |
author_sort |
Moore, Philip |
title |
Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
title_short |
Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
title_full |
Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
title_fullStr |
Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
title_full_unstemmed |
Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
title_sort |
satellite gravity gradiometry: secular gravity field change over polar regions |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00618179 https://hal.archives-ouvertes.fr/hal-00618179/document https://hal.archives-ouvertes.fr/hal-00618179/file/PEER_stage2_10.1016%252Fj.jog.2010.01.007.pdf https://doi.org/10.1016/j.jog.2010.01.007 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
ISSN: 0264-3707 Journal of Geodynamics https://hal.archives-ouvertes.fr/hal-00618179 Journal of Geodynamics, Elsevier, 2010, 49 (5), pp.247. ⟨10.1016/j.jog.2010.01.007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jog.2010.01.007 hal-00618179 https://hal.archives-ouvertes.fr/hal-00618179 https://hal.archives-ouvertes.fr/hal-00618179/document https://hal.archives-ouvertes.fr/hal-00618179/file/PEER_stage2_10.1016%252Fj.jog.2010.01.007.pdf doi:10.1016/j.jog.2010.01.007 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.jog.2010.01.007 |
container_title |
Journal of Geodynamics |
container_volume |
49 |
container_issue |
5 |
container_start_page |
247 |
op_container_end_page |
253 |
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1766245502900240384 |