Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions
Abstract 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...
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Online Access: | http://hdl.handle.net/2262/59155 https://doi.org/10.1016/j.jog.2010.01.007 |
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fttrinitycoll:oai:tara.tcd.ie:2262/59155 2023-05-15T14:04:40+02:00 Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions 2011-09-01T00:53:11Z http://hdl.handle.net/2262/59155 https://doi.org/10.1016/j.jog.2010.01.007 en eng Elsevier 02643707 (ISSN) S0264-3707(10)00020-7 (PII) S0264-3707(10)00020-7 (publisherID) http://hdl.handle.net/2262/59155 49 5 247 doi:10.1016/j.jog.2010.01.007 Journal of Geodynamics (abbrev) 2010 18 months GOCE gravity field temporal variations gradiometry 2011 fttrinitycoll https://doi.org/10.1016/j.jog.2010.01.007 2020-02-16T13:52:49Z Abstract 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. correspondance: Corresponding author. (Moore, Philip) Philip.moore@ncl.ac.uk (Moore, Philip) School of Civil Engineering and Geosciences--> , Newcastle University--> , Newcastle--> , NE1 7RU--> - UNITED KINGDOM (Moore, Philip) School of Civil Engineering and Geosciences--> , Newcastle University--> , Newcastle--> , NE1 7RU--> - UNITED KINGDOM (King, Matt A.) UNITED KINGDOM Received: 2009-06-25 Revised: 2009-12-15 Accepted: 2010-01-06 Other/Unknown Material Antarc* Antarctica Greenland The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) Greenland Journal of Geodynamics 49 5 247 253 |
institution |
Open Polar |
collection |
The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) |
op_collection_id |
fttrinitycoll |
language |
English |
topic |
GOCE gravity field temporal variations gradiometry |
spellingShingle |
GOCE gravity field temporal variations gradiometry Satellite Gravity Gradiometry: Secular Gravity Field Change over Polar Regions |
topic_facet |
GOCE gravity field temporal variations gradiometry |
description |
Abstract 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. correspondance: Corresponding author. (Moore, Philip) Philip.moore@ncl.ac.uk (Moore, Philip) School of Civil Engineering and Geosciences--> , Newcastle University--> , Newcastle--> , NE1 7RU--> - UNITED KINGDOM (Moore, Philip) School of Civil Engineering and Geosciences--> , Newcastle University--> , Newcastle--> , NE1 7RU--> - UNITED KINGDOM (King, Matt A.) UNITED KINGDOM Received: 2009-06-25 Revised: 2009-12-15 Accepted: 2010-01-06 |
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 |
Elsevier |
publishDate |
2011 |
url |
http://hdl.handle.net/2262/59155 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_relation |
02643707 (ISSN) S0264-3707(10)00020-7 (PII) S0264-3707(10)00020-7 (publisherID) http://hdl.handle.net/2262/59155 49 5 247 doi:10.1016/j.jog.2010.01.007 Journal of Geodynamics (abbrev) |
op_rights |
2010 18 months |
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 |
_version_ |
1766275885072121856 |