Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations
<jats:p>Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth system. Therefore, reliably estimating the Arctic sea-ice thickness (SIT) using a combination of available observations and numerical modeling is urgently needed. Here, for the first time, we assimilate the lates...
Published in: | Ocean-Land-Atmosphere Research |
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American Association for the Advancement of Science (AAAS)
2023
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Online Access: | https://epic.awi.de/id/eprint/58146/ https://epic.awi.de/id/eprint/58146/1/Min_etal_OLAR2_0025_2023.pdf https://doi.org/10.34133/olar.0025 https://hdl.handle.net/10013/epic.d66c644e-8163-4669-bf3c-3adce191b74b |
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ftawi:oai:epic.awi.de:58146 2023-12-24T10:12:27+01:00 Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations Min, Chao Yang, Qinghua Luo, Hao Chen, Dake Krumpen, Thomas Mamnun, Nabir Liu, Xiaoyu Nerger, Lars 2023-01 application/pdf https://epic.awi.de/id/eprint/58146/ https://epic.awi.de/id/eprint/58146/1/Min_etal_OLAR2_0025_2023.pdf https://doi.org/10.34133/olar.0025 https://hdl.handle.net/10013/epic.d66c644e-8163-4669-bf3c-3adce191b74b unknown American Association for the Advancement of Science (AAAS) https://epic.awi.de/id/eprint/58146/1/Min_etal_OLAR2_0025_2023.pdf Min, C. , Yang, Q. , Luo, H. , Chen, D. , Krumpen, T. orcid:0000-0001-6234-8756 , Mamnun, N. , Liu, X. and Nerger, L. orcid:0000-0002-1908-1010 (2023) Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations , Ocean-Land-Atmosphere Research, 2 . doi:10.34133/olar.0025 <https://doi.org/10.34133/olar.0025> , hdl:10013/epic.d66c644e-8163-4669-bf3c-3adce191b74b EPIC3Ocean-Land-Atmosphere Research, American Association for the Advancement of Science (AAAS), 2, ISSN: 2771-0378 Article isiRev 2023 ftawi https://doi.org/10.34133/olar.0025 2023-11-27T00:23:17Z <jats:p>Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth system. Therefore, reliably estimating the Arctic sea-ice thickness (SIT) using a combination of available observations and numerical modeling is urgently needed. Here, for the first time, we assimilate the latest CryoSat-2 summer SIT data into a coupled ice-ocean model. In particular, an incremental analysis update scheme is implemented to overcome the discontinuity resulting from the combined assimilation of biweekly SIT and daily sea-ice concentration (SIC) data. Along with improved estimates of sea-ice volume, our SIT estimates corrected the overestimation of SIT produced by the reanalysis that assimilates only SIC in summer in areas where the sea ice is roughest and experiences strong deformation, e.g., around the Fram Strait and Greenland. This study suggests that the newly developed CryoSat-2 SIT product, when assimilated properly using our approach, has great potential for Arctic sea-ice simulation and prediction.</jats:p> Article in Journal/Newspaper Arctic Arctic Fram Strait Greenland Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Greenland Ocean-Land-Atmosphere Research 2 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
<jats:p>Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth system. Therefore, reliably estimating the Arctic sea-ice thickness (SIT) using a combination of available observations and numerical modeling is urgently needed. Here, for the first time, we assimilate the latest CryoSat-2 summer SIT data into a coupled ice-ocean model. In particular, an incremental analysis update scheme is implemented to overcome the discontinuity resulting from the combined assimilation of biweekly SIT and daily sea-ice concentration (SIC) data. Along with improved estimates of sea-ice volume, our SIT estimates corrected the overestimation of SIT produced by the reanalysis that assimilates only SIC in summer in areas where the sea ice is roughest and experiences strong deformation, e.g., around the Fram Strait and Greenland. This study suggests that the newly developed CryoSat-2 SIT product, when assimilated properly using our approach, has great potential for Arctic sea-ice simulation and prediction.</jats:p> |
format |
Article in Journal/Newspaper |
author |
Min, Chao Yang, Qinghua Luo, Hao Chen, Dake Krumpen, Thomas Mamnun, Nabir Liu, Xiaoyu Nerger, Lars |
spellingShingle |
Min, Chao Yang, Qinghua Luo, Hao Chen, Dake Krumpen, Thomas Mamnun, Nabir Liu, Xiaoyu Nerger, Lars Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations |
author_facet |
Min, Chao Yang, Qinghua Luo, Hao Chen, Dake Krumpen, Thomas Mamnun, Nabir Liu, Xiaoyu Nerger, Lars |
author_sort |
Min, Chao |
title |
Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations |
title_short |
Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations |
title_full |
Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations |
title_fullStr |
Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations |
title_full_unstemmed |
Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations |
title_sort |
improving arctic sea-ice thickness estimates with the assimilation of cryosat-2 summer observations |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2023 |
url |
https://epic.awi.de/id/eprint/58146/ https://epic.awi.de/id/eprint/58146/1/Min_etal_OLAR2_0025_2023.pdf https://doi.org/10.34133/olar.0025 https://hdl.handle.net/10013/epic.d66c644e-8163-4669-bf3c-3adce191b74b |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Fram Strait Greenland Sea ice |
genre_facet |
Arctic Arctic Fram Strait Greenland Sea ice |
op_source |
EPIC3Ocean-Land-Atmosphere Research, American Association for the Advancement of Science (AAAS), 2, ISSN: 2771-0378 |
op_relation |
https://epic.awi.de/id/eprint/58146/1/Min_etal_OLAR2_0025_2023.pdf Min, C. , Yang, Q. , Luo, H. , Chen, D. , Krumpen, T. orcid:0000-0001-6234-8756 , Mamnun, N. , Liu, X. and Nerger, L. orcid:0000-0002-1908-1010 (2023) Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations , Ocean-Land-Atmosphere Research, 2 . doi:10.34133/olar.0025 <https://doi.org/10.34133/olar.0025> , hdl:10013/epic.d66c644e-8163-4669-bf3c-3adce191b74b |
op_doi |
https://doi.org/10.34133/olar.0025 |
container_title |
Ocean-Land-Atmosphere Research |
container_volume |
2 |
_version_ |
1786174402960818176 |