Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model
Ice shelves-the floating extensions of the Antarctic ice sheet-regulate the Antarctic contribution to sea-level rise by restraining the grounded ice flowing from upstream. Therefore, ice-shelf change (e.g., ice-shelf thinning) results in accelerated ice discharge into the ocean, which has a direct e...
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ftconicet:oai:ri.conicet.gov.ar:11336/146917 2023-10-09T21:46:27+02:00 Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model Glaude, Quentin Amory, Charles Berger, Sophie Derauw, Dominique Maurice Pattyn, Frank Barbier, Christian Orban, Anne application/pdf http://hdl.handle.net/11336/146917 eng eng Institute of Electrical and Electronics Engineers info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/9138726/ info:eu-repo/semantics/altIdentifier/doi/10.1109/JSTARS.2020.3008497 http://hdl.handle.net/11336/146917 Glaude, Quentin; Amory, Charles; Berger, Sophie; Derauw, Dominique Maurice; Pattyn, Frank; et al.; Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model; Institute of Electrical and Electronics Engineers; IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing; 13; 19839211; 10-7-2020; 4085-4094 1939-1404 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Antartica differential synthetic aperture radar (SAR) interferometry (DInSAR) Antarctica double DInSAR (DDInSAR) Ice shelf https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.3 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1109/JSTARS.2020.3008497 2023-09-24T19:57:36Z Ice shelves-the floating extensions of the Antarctic ice sheet-regulate the Antarctic contribution to sea-level rise by restraining the grounded ice flowing from upstream. Therefore, ice-shelf change (e.g., ice-shelf thinning) results in accelerated ice discharge into the ocean, which has a direct effect on sea level. Studying ice-shelf velocity allows the monitoring of the ice shelves' stability and evolution. Differential synthetic aperture radar interferometry (DInSAR) is a common technique from which highly accurate velocity maps can be inferred at high resolution. Because ice shelves are afloat, small sea-level changes-i.e., ocean tides and varying atmospheric pressure (aka inverse barometer effect) lead to vertical displacements. If not accounted for in the interferometric process, these effects will induce a strong bias in the horizontal velocity estimation. In this article, we present an empirical DInSAR correction technique from geophysical models and double DInSAR, with a study on its variance propagation. The method is developed to be used at large coverage on short timescales, essential for the near-continuous monitoring of rapidly changing areas on polar ice sheets. We used Sentinel-1 SAR acquisitions in interferometric wide and extra -wide swath modes. The vertical interferometric bias is estimated using a regional climate model (MAR) and a tide model (CATS2008). The study area is located on the Roi Baudouin Ice Shelf in Dronning Maud Land, East Antarctica. Results show a major decrease (67 m·a -1 ) in the vertical-induced displacement bias. Fil: Glaude, Quentin. Université Libre de Bruxelles; Bélgica. Université de Liège; Bélgica Fil: Amory, Charles. Universite de Liege. Faculty Of Applied Sciences.; Bélgica Fil: Berger, Sophie. Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung; Alemania. Université Libre de Bruxelles; Bélgica Fil: Derauw, Dominique Maurice. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; ... Article in Journal/Newspaper Antarc* Antarctic Antarctica antartic* Dronning Maud Land East Antarctica Ice Sheet Ice Shelf Ice Shelves CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic East Antarctica Dronning Maud Land Maurice ENVELOPE(-55.817,-55.817,-63.133,-63.133) Roi Baudouin ENVELOPE(24.461,24.461,-70.438,-70.438) Liège ENVELOPE(-61.917,-61.917,-64.033,-64.033) IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 13 4085 4094 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Antartica differential synthetic aperture radar (SAR) interferometry (DInSAR) Antarctica double DInSAR (DDInSAR) Ice shelf https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.3 |
spellingShingle |
Antartica differential synthetic aperture radar (SAR) interferometry (DInSAR) Antarctica double DInSAR (DDInSAR) Ice shelf https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.3 Glaude, Quentin Amory, Charles Berger, Sophie Derauw, Dominique Maurice Pattyn, Frank Barbier, Christian Orban, Anne Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model |
topic_facet |
Antartica differential synthetic aperture radar (SAR) interferometry (DInSAR) Antarctica double DInSAR (DDInSAR) Ice shelf https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.3 |
description |
Ice shelves-the floating extensions of the Antarctic ice sheet-regulate the Antarctic contribution to sea-level rise by restraining the grounded ice flowing from upstream. Therefore, ice-shelf change (e.g., ice-shelf thinning) results in accelerated ice discharge into the ocean, which has a direct effect on sea level. Studying ice-shelf velocity allows the monitoring of the ice shelves' stability and evolution. Differential synthetic aperture radar interferometry (DInSAR) is a common technique from which highly accurate velocity maps can be inferred at high resolution. Because ice shelves are afloat, small sea-level changes-i.e., ocean tides and varying atmospheric pressure (aka inverse barometer effect) lead to vertical displacements. If not accounted for in the interferometric process, these effects will induce a strong bias in the horizontal velocity estimation. In this article, we present an empirical DInSAR correction technique from geophysical models and double DInSAR, with a study on its variance propagation. The method is developed to be used at large coverage on short timescales, essential for the near-continuous monitoring of rapidly changing areas on polar ice sheets. We used Sentinel-1 SAR acquisitions in interferometric wide and extra -wide swath modes. The vertical interferometric bias is estimated using a regional climate model (MAR) and a tide model (CATS2008). The study area is located on the Roi Baudouin Ice Shelf in Dronning Maud Land, East Antarctica. Results show a major decrease (67 m·a -1 ) in the vertical-induced displacement bias. Fil: Glaude, Quentin. Université Libre de Bruxelles; Bélgica. Université de Liège; Bélgica Fil: Amory, Charles. Universite de Liege. Faculty Of Applied Sciences.; Bélgica Fil: Berger, Sophie. Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung; Alemania. Université Libre de Bruxelles; Bélgica Fil: Derauw, Dominique Maurice. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; ... |
format |
Article in Journal/Newspaper |
author |
Glaude, Quentin Amory, Charles Berger, Sophie Derauw, Dominique Maurice Pattyn, Frank Barbier, Christian Orban, Anne |
author_facet |
Glaude, Quentin Amory, Charles Berger, Sophie Derauw, Dominique Maurice Pattyn, Frank Barbier, Christian Orban, Anne |
author_sort |
Glaude, Quentin |
title |
Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model |
title_short |
Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model |
title_full |
Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model |
title_fullStr |
Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model |
title_full_unstemmed |
Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model |
title_sort |
empirical removal of tides and inverse barometer effect on dinsar from double dinsar and a regional climate model |
publisher |
Institute of Electrical and Electronics Engineers |
url |
http://hdl.handle.net/11336/146917 |
long_lat |
ENVELOPE(-55.817,-55.817,-63.133,-63.133) ENVELOPE(24.461,24.461,-70.438,-70.438) ENVELOPE(-61.917,-61.917,-64.033,-64.033) |
geographic |
Antarctic The Antarctic East Antarctica Dronning Maud Land Maurice Roi Baudouin Liège |
geographic_facet |
Antarctic The Antarctic East Antarctica Dronning Maud Land Maurice Roi Baudouin Liège |
genre |
Antarc* Antarctic Antarctica antartic* Dronning Maud Land East Antarctica Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctica antartic* Dronning Maud Land East Antarctica Ice Sheet Ice Shelf Ice Shelves |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/9138726/ info:eu-repo/semantics/altIdentifier/doi/10.1109/JSTARS.2020.3008497 http://hdl.handle.net/11336/146917 Glaude, Quentin; Amory, Charles; Berger, Sophie; Derauw, Dominique Maurice; Pattyn, Frank; et al.; Empirical Removal of Tides and Inverse Barometer Effect on DInSAR From Double DInSAR and a Regional Climate Model; Institute of Electrical and Electronics Engineers; IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing; 13; 19839211; 10-7-2020; 4085-4094 1939-1404 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1109/JSTARS.2020.3008497 |
container_title |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
container_volume |
13 |
container_start_page |
4085 |
op_container_end_page |
4094 |
_version_ |
1779322152804155392 |