Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering
Remote sensing has long been used as a powerful tool for the observation in cryospheric sciences. With the advances brought by the ESA Copernicus program, Earth observation goes a step further in its ability to get acquisitions at very high temporal rate. This is even amplified in polar regions due...
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ftorbi:oai:orbi.ulg.ac.be:2268/247617 2024-04-21T07:49:56+00:00 Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering Glaude, Quentin Kittel, Christoph 2020-05-05 https://orbi.uliege.be/handle/2268/247617 https://orbi.uliege.be/bitstream/2268/247617/1/Presentation.pdf en eng https://meetingorganizer.copernicus.org/EGU2020/EGU2020-5561.html#discussion https://orbi.uliege.be/handle/2268/247617 info:hdl:2268/247617 https://orbi.uliege.be/bitstream/2268/247617/1/Presentation.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess EGU Sharing Geosciences Online, from 04-05-2020,to 08-05-2020 Ice Shelf Sentinel-1 MAR SAR Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2020 ftorbi 2024-03-27T14:50:47Z Remote sensing has long been used as a powerful tool for the observation in cryospheric sciences. With the advances brought by the ESA Copernicus program, Earth observation goes a step further in its ability to get acquisitions at very high temporal rate. This is even amplified in polar regions due to heliosynchronism of satellites’ orbits. Earth observation shifts from sporadic observations to Earth monitoring. Observations are a critical aspect for the assessment of geophysical models. The ability of a model to replicate observations is crucial as a benchmark. It also allows to refine our comprehension of Earth systems, such as in cryospheric sciences. In this work, we are using the regional climate model MAR to compute the surface melt on a domain focusing on the Roi Baudouin Ice Shelf, Queen Maud Land, East Antarctica. From the results, we extract the number of days with surface melt in a region. In parallel, we employ remote sensing to obtain comparison data. Synthetic aperture radar appears as a solution of choice thanks to its day-and-night (critical in polar regions) and atmospheric-free capabilities. Radar backscattering anomalies between different dates are witnesses of substantial increase of soil moisture. Using Sentinel-1 in its wide-swath modes (namely Interferometric Wide Swath and Extra Wide Swath modes) and multiple satellite paths, near-daily acquisitions can be obtained. By comparing the two independent results, we better constraint model’s outputs while also better interpret SAR acquisitions. MIMO (Monitoring melt where Ice Meets Ocean) Conference Object Antarc* Antarctica East Antarctica Ice Shelf Queen Maud Land University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Ice Shelf Sentinel-1 MAR SAR Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Ice Shelf Sentinel-1 MAR SAR Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Glaude, Quentin Kittel, Christoph Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering |
topic_facet |
Ice Shelf Sentinel-1 MAR SAR Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
Remote sensing has long been used as a powerful tool for the observation in cryospheric sciences. With the advances brought by the ESA Copernicus program, Earth observation goes a step further in its ability to get acquisitions at very high temporal rate. This is even amplified in polar regions due to heliosynchronism of satellites’ orbits. Earth observation shifts from sporadic observations to Earth monitoring. Observations are a critical aspect for the assessment of geophysical models. The ability of a model to replicate observations is crucial as a benchmark. It also allows to refine our comprehension of Earth systems, such as in cryospheric sciences. In this work, we are using the regional climate model MAR to compute the surface melt on a domain focusing on the Roi Baudouin Ice Shelf, Queen Maud Land, East Antarctica. From the results, we extract the number of days with surface melt in a region. In parallel, we employ remote sensing to obtain comparison data. Synthetic aperture radar appears as a solution of choice thanks to its day-and-night (critical in polar regions) and atmospheric-free capabilities. Radar backscattering anomalies between different dates are witnesses of substantial increase of soil moisture. Using Sentinel-1 in its wide-swath modes (namely Interferometric Wide Swath and Extra Wide Swath modes) and multiple satellite paths, near-daily acquisitions can be obtained. By comparing the two independent results, we better constraint model’s outputs while also better interpret SAR acquisitions. MIMO (Monitoring melt where Ice Meets Ocean) |
format |
Conference Object |
author |
Glaude, Quentin Kittel, Christoph |
author_facet |
Glaude, Quentin Kittel, Christoph |
author_sort |
Glaude, Quentin |
title |
Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering |
title_short |
Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering |
title_full |
Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering |
title_fullStr |
Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering |
title_full_unstemmed |
Comparison Between Surface Melt Days Estimation from a Regional Climate Model and Near-Daily Synthetic Aperture Radar Backscattering |
title_sort |
comparison between surface melt days estimation from a regional climate model and near-daily synthetic aperture radar backscattering |
publishDate |
2020 |
url |
https://orbi.uliege.be/handle/2268/247617 https://orbi.uliege.be/bitstream/2268/247617/1/Presentation.pdf |
genre |
Antarc* Antarctica East Antarctica Ice Shelf Queen Maud Land |
genre_facet |
Antarc* Antarctica East Antarctica Ice Shelf Queen Maud Land |
op_source |
EGU Sharing Geosciences Online, from 04-05-2020,to 08-05-2020 |
op_relation |
https://meetingorganizer.copernicus.org/EGU2020/EGU2020-5561.html#discussion https://orbi.uliege.be/handle/2268/247617 info:hdl:2268/247617 https://orbi.uliege.be/bitstream/2268/247617/1/Presentation.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796933859579789312 |