Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz
An advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz is presented. The method is based on the new approach for the determination of the tie points ― the polarization differences (PD) of the brightness temperatures (TB) of...
Published in: | Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa |
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Online Access: | https://archimer.ifremer.fr/doc/00660/77194/78613.pdf https://doi.org/10.21046/2070-7401-2019-16-4-233-243 https://archimer.ifremer.fr/doc/00660/77194/ |
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ftarchimer:oai:archimer.ifremer.fr:77194 2023-05-15T14:55:43+02:00 Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz Zabolotskikh, E.v. Balashova, E.a. Chapron, Bertrand 2019 application/pdf https://archimer.ifremer.fr/doc/00660/77194/78613.pdf https://doi.org/10.21046/2070-7401-2019-16-4-233-243 https://archimer.ifremer.fr/doc/00660/77194/ eng eng Space Research Institute RAS https://archimer.ifremer.fr/doc/00660/77194/78613.pdf doi:10.21046/2070-7401-2019-16-4-233-243 https://archimer.ifremer.fr/doc/00660/77194/ info:eu-repo/semantics/openAccess restricted use Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosaCurrent problems in remote sensing of the Earth from space (2411-0280) (Space Research Institute RAS), 2019 , Vol. 16 , N. 4 , P. 233-243 sea ice sea ice concentration Arctic satellite passive microwave radiometers brightness temperatures AMSR2 polarization difference physical modeling text Publication info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.21046/2070-7401-2019-16-4-233-243 2021-09-23T20:36:29Z An advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz is presented. The method is based on the new approach for the determination of the tie points ― the polarization differences (PD) of the brightness temperatures (TB) of the ocean-atmosphere system (PDW) and the sea ice-atmosphere system microwave radiation (PDSI). The approach is based on the results of physical modeling of the sea ice – ocean – atmosphere TB and the analysis of the measurements of the Advanced Microwave Scanning Radiometer 2 (AMSR2) in the Arctic region. The TB simulation is carried out for the whole ranges of the Arctic atmospheric conditions and sea ice and ocean parameters. The method of sea ice concentration (SIC) retrieval uses PD in measurements on the vertical and horizontal polarization at the frequency of 89 GHz and the values of tie points over the ice-free sea surface and over the sea ice. The range of PDW and PDSI variability is analyzed basing on the AMSR2 measurement data and the results of TB model calculations. The advancement of the method as compared to those traditionally used is the use of variable PDW values depending on how far from the sea ice edge is the pixel for which C is estimated. The method was tested using the maps of the Norwegian Meteorological Institute (NMI) for the Northeren, Kara and Barents seas. The error of SIC estimation, calculated using the new method, turned out to be 4.2 %, which is almost two times lower than the error of the standard product of the University of Bremen, calculated using the same verification data set. Article in Journal/Newspaper Arctic Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa 16 4 233 243 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
sea ice sea ice concentration Arctic satellite passive microwave radiometers brightness temperatures AMSR2 polarization difference physical modeling |
spellingShingle |
sea ice sea ice concentration Arctic satellite passive microwave radiometers brightness temperatures AMSR2 polarization difference physical modeling Zabolotskikh, E.v. Balashova, E.a. Chapron, Bertrand Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz |
topic_facet |
sea ice sea ice concentration Arctic satellite passive microwave radiometers brightness temperatures AMSR2 polarization difference physical modeling |
description |
An advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz is presented. The method is based on the new approach for the determination of the tie points ― the polarization differences (PD) of the brightness temperatures (TB) of the ocean-atmosphere system (PDW) and the sea ice-atmosphere system microwave radiation (PDSI). The approach is based on the results of physical modeling of the sea ice – ocean – atmosphere TB and the analysis of the measurements of the Advanced Microwave Scanning Radiometer 2 (AMSR2) in the Arctic region. The TB simulation is carried out for the whole ranges of the Arctic atmospheric conditions and sea ice and ocean parameters. The method of sea ice concentration (SIC) retrieval uses PD in measurements on the vertical and horizontal polarization at the frequency of 89 GHz and the values of tie points over the ice-free sea surface and over the sea ice. The range of PDW and PDSI variability is analyzed basing on the AMSR2 measurement data and the results of TB model calculations. The advancement of the method as compared to those traditionally used is the use of variable PDW values depending on how far from the sea ice edge is the pixel for which C is estimated. The method was tested using the maps of the Norwegian Meteorological Institute (NMI) for the Northeren, Kara and Barents seas. The error of SIC estimation, calculated using the new method, turned out to be 4.2 %, which is almost two times lower than the error of the standard product of the University of Bremen, calculated using the same verification data set. |
format |
Article in Journal/Newspaper |
author |
Zabolotskikh, E.v. Balashova, E.a. Chapron, Bertrand |
author_facet |
Zabolotskikh, E.v. Balashova, E.a. Chapron, Bertrand |
author_sort |
Zabolotskikh, E.v. |
title |
Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz |
title_short |
Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz |
title_full |
Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz |
title_fullStr |
Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz |
title_full_unstemmed |
Advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 GHz |
title_sort |
advanced method for sea ice concentration retrieval from satellite microwave radiometer measurements at frequencies near 90 ghz |
publisher |
Space Research Institute RAS |
publishDate |
2019 |
url |
https://archimer.ifremer.fr/doc/00660/77194/78613.pdf https://doi.org/10.21046/2070-7401-2019-16-4-233-243 https://archimer.ifremer.fr/doc/00660/77194/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosaCurrent problems in remote sensing of the Earth from space (2411-0280) (Space Research Institute RAS), 2019 , Vol. 16 , N. 4 , P. 233-243 |
op_relation |
https://archimer.ifremer.fr/doc/00660/77194/78613.pdf doi:10.21046/2070-7401-2019-16-4-233-243 https://archimer.ifremer.fr/doc/00660/77194/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.21046/2070-7401-2019-16-4-233-243 |
container_title |
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa |
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16 |
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4 |
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233 |
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243 |
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