Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission
Across spatial and temporal scales, sea-ice motion has implications for ship navigation, the sea-ice thickness distribution, sea-ice export to lower latitudes and re-circulation in the polar seas, among others. Satellite remote sensing is an effective way to monitor sea-ice drift globally and daily,...
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2021
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ftdoajarticles:oai:doaj.org/article:701c9b31dc764546bdd04e03f9506fd7 2023-05-15T15:12:34+02:00 Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission T. Lavergne M. Piñol Solé E. Down C. Donlon 2021-08-01T00:00:00Z https://doi.org/10.5194/tc-15-3681-2021 https://doaj.org/article/701c9b31dc764546bdd04e03f9506fd7 EN eng Copernicus Publications https://tc.copernicus.org/articles/15/3681/2021/tc-15-3681-2021.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-15-3681-2021 1994-0416 1994-0424 https://doaj.org/article/701c9b31dc764546bdd04e03f9506fd7 The Cryosphere, Vol 15, Pp 3681-3698 (2021) Environmental sciences GE1-350 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.5194/tc-15-3681-2021 2022-12-31T13:05:13Z Across spatial and temporal scales, sea-ice motion has implications for ship navigation, the sea-ice thickness distribution, sea-ice export to lower latitudes and re-circulation in the polar seas, among others. Satellite remote sensing is an effective way to monitor sea-ice drift globally and daily, especially using the wide swaths of passive microwave missions. Since the late 1990s, many algorithms and products have been developed for this task. Here, we investigate how processing sea-ice drift vectors from the intersection of individual swaths of the Advanced Microwave Scanning Radiometer 2 (AMSR2) mission compares to today's status quo (processing from daily averaged maps of brightness temperature). We document that the “swath-to-swath” (S2S) approach results in many more (2 orders of magnitude) sea-ice drift vectors than the “daily map” (DM) approach. These S2S vectors also validate better when compared to trajectories of on-ice drifters. For example, the RMSE of the 24 h winter Arctic sea-ice drift is 0.9 km for S2S vectors and 1.3 km for DM vectors from the 36.5 GHz imagery of AMSR2. Through a series of experiments with actual AMSR2 data and simulated Copernicus Imaging Microwave Radiometer (CIMR) data, we study the impact that geolocation uncertainty and imaging resolution have on the accuracy of the sea-ice drift vectors. We conclude by recommending that a swath-to-swath approach is adopted for the future operational Level-2 sea-ice drift product of the CIMR mission. We outline some potential next steps towards further improving the algorithms and making the user community ready to fully take advantage of such a product. Article in Journal/Newspaper Arctic Sea ice The Cryosphere Directory of Open Access Journals: DOAJ Articles Arctic The Cryosphere 15 8 3681 3698 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 T. Lavergne M. Piñol Solé E. Down C. Donlon Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Across spatial and temporal scales, sea-ice motion has implications for ship navigation, the sea-ice thickness distribution, sea-ice export to lower latitudes and re-circulation in the polar seas, among others. Satellite remote sensing is an effective way to monitor sea-ice drift globally and daily, especially using the wide swaths of passive microwave missions. Since the late 1990s, many algorithms and products have been developed for this task. Here, we investigate how processing sea-ice drift vectors from the intersection of individual swaths of the Advanced Microwave Scanning Radiometer 2 (AMSR2) mission compares to today's status quo (processing from daily averaged maps of brightness temperature). We document that the “swath-to-swath” (S2S) approach results in many more (2 orders of magnitude) sea-ice drift vectors than the “daily map” (DM) approach. These S2S vectors also validate better when compared to trajectories of on-ice drifters. For example, the RMSE of the 24 h winter Arctic sea-ice drift is 0.9 km for S2S vectors and 1.3 km for DM vectors from the 36.5 GHz imagery of AMSR2. Through a series of experiments with actual AMSR2 data and simulated Copernicus Imaging Microwave Radiometer (CIMR) data, we study the impact that geolocation uncertainty and imaging resolution have on the accuracy of the sea-ice drift vectors. We conclude by recommending that a swath-to-swath approach is adopted for the future operational Level-2 sea-ice drift product of the CIMR mission. We outline some potential next steps towards further improving the algorithms and making the user community ready to fully take advantage of such a product. |
format |
Article in Journal/Newspaper |
author |
T. Lavergne M. Piñol Solé E. Down C. Donlon |
author_facet |
T. Lavergne M. Piñol Solé E. Down C. Donlon |
author_sort |
T. Lavergne |
title |
Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission |
title_short |
Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission |
title_full |
Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission |
title_fullStr |
Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission |
title_full_unstemmed |
Towards a swath-to-swath sea-ice drift product for the Copernicus Imaging Microwave Radiometer mission |
title_sort |
towards a swath-to-swath sea-ice drift product for the copernicus imaging microwave radiometer mission |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-3681-2021 https://doaj.org/article/701c9b31dc764546bdd04e03f9506fd7 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice The Cryosphere |
genre_facet |
Arctic Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 3681-3698 (2021) |
op_relation |
https://tc.copernicus.org/articles/15/3681/2021/tc-15-3681-2021.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-15-3681-2021 1994-0416 1994-0424 https://doaj.org/article/701c9b31dc764546bdd04e03f9506fd7 |
op_doi |
https://doi.org/10.5194/tc-15-3681-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
8 |
container_start_page |
3681 |
op_container_end_page |
3698 |
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