Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data
We estimate the ice-mass loss in West Antarctica from the Gravity Recovery and Climate Experiment (GRACE) using an inverse gravimetric approach. The inversion is constrained by the InSAR data to minimize the ambiguity of the resulting mass estimates. We determine the spatial resolution of GRACE over...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_238006 2023-05-15T13:43:52+02:00 Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data Sasgen, I. Martinec, Z. Bamber, J. 1.3 Earth System Modelling, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum 2008 https://gfzpublic.gfz-potsdam.de/pubman/item/item_238006 unknown https://gfzpublic.gfz-potsdam.de/pubman/item/item_238006 Eos, Transactions, American Geophysical Union, Suppl.; 89, 53 550 - Earth sciences info:eu-repo/semantics/conferenceObject 2008 ftgfzpotsdam 2022-09-14T05:53:38Z We estimate the ice-mass loss in West Antarctica from the Gravity Recovery and Climate Experiment (GRACE) using an inverse gravimetric approach. The inversion is constrained by the InSAR data to minimize the ambiguity of the resulting mass estimates. We determine the spatial resolution of GRACE over Antarctica and use it to calculate unconstrained (GRACE only) mass balance estimates for a reduced number of drainage basins. We compare InSAR, constrained and unconstrained mass change rates, estimate their uncertainties and discuss the influence of glacial-isostatic adjustment on our results. Conference Object Antarc* Antarctic Antarctica West Antarctica GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic West Antarctica |
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Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
topic |
550 - Earth sciences |
spellingShingle |
550 - Earth sciences Sasgen, I. Martinec, Z. Bamber, J. Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data |
topic_facet |
550 - Earth sciences |
description |
We estimate the ice-mass loss in West Antarctica from the Gravity Recovery and Climate Experiment (GRACE) using an inverse gravimetric approach. The inversion is constrained by the InSAR data to minimize the ambiguity of the resulting mass estimates. We determine the spatial resolution of GRACE over Antarctica and use it to calculate unconstrained (GRACE only) mass balance estimates for a reduced number of drainage basins. We compare InSAR, constrained and unconstrained mass change rates, estimate their uncertainties and discuss the influence of glacial-isostatic adjustment on our results. |
author2 |
1.3 Earth System Modelling, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum |
format |
Conference Object |
author |
Sasgen, I. Martinec, Z. Bamber, J. |
author_facet |
Sasgen, I. Martinec, Z. Bamber, J. |
author_sort |
Sasgen, I. |
title |
Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data |
title_short |
Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data |
title_full |
Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data |
title_fullStr |
Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data |
title_full_unstemmed |
Present-day West Antarctic ice-mass change estimate by the constrained inversion of GRACE and InSAR data |
title_sort |
present-day west antarctic ice-mass change estimate by the constrained inversion of grace and insar data |
publishDate |
2008 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_238006 |
geographic |
Antarctic West Antarctica |
geographic_facet |
Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctica West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica West Antarctica |
op_source |
Eos, Transactions, American Geophysical Union, Suppl.; 89, 53 |
op_relation |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_238006 |
_version_ |
1766194445767671808 |