Validation of reanalysis Southern Ocean atmosphere trends using sea ice data
Reanalysis products are an invaluable tool for representing variability and long-term trends in regions with limited in situ data, and especially the Antarctic. A comparison of eight different reanalysis products shows large differences in sea level pressure and surface air temperature trends over t...
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Online Access: | https://hdl.handle.net/2440/132063 https://doi.org/10.5194/acp-20-14757-2020 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/132063 2023-12-17T10:20:31+01:00 Validation of reanalysis Southern Ocean atmosphere trends using sea ice data Hobbs, W.R. Klekociuk, A.R. Pan, Y. 2020 application/pdf https://hdl.handle.net/2440/132063 https://doi.org/10.5194/acp-20-14757-2020 en eng Copernicus Publications ARC Atmospheric Chemistry and Physics, 2020; 20(23):14757-14768 1680-7316 1680-7324 https://hdl.handle.net/2440/132063 doi:10.5194/acp-20-14757-2020 Klekociuk, A.R. [0000-0003-3335-0034] © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. http://dx.doi.org/10.5194/acp-20-14757-2020 Journal article 2020 ftunivadelaidedl https://doi.org/10.5194/acp-20-14757-2020 2023-11-20T23:27:14Z Reanalysis products are an invaluable tool for representing variability and long-term trends in regions with limited in situ data, and especially the Antarctic. A comparison of eight different reanalysis products shows large differences in sea level pressure and surface air temperature trends over the high-latitude Southern Ocean, with implications for studies of the atmosphere's role in driving ocean–sea ice changes. In this study, we use the established close coupling between sea ice cover and surface temperature to evaluate these reanalysis trends using the independent, 30-year sea ice record from 1980 to 2010. We demonstrate that sea ice trends are a reliable validation tool for most months of the year, although the sea ice–surface temperature coupling is weakest in summer when the surface energy budget is dominated by atmosphere-to-ocean heat fluxes. Based on our analysis, we find that surface air temperature trends in JRA55 are most consistent with satellite-observed sea ice trends over the polar waters of the Southern Ocean. William R. Hobbs, Andrew R. Klekociuk, and Yuhang Pan Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean The University of Adelaide: Digital Library Antarctic Hobbs ENVELOPE(-57.500,-57.500,-64.300,-64.300) Southern Ocean The Antarctic Atmospheric Chemistry and Physics 20 23 14757 14768 |
institution |
Open Polar |
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The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
description |
Reanalysis products are an invaluable tool for representing variability and long-term trends in regions with limited in situ data, and especially the Antarctic. A comparison of eight different reanalysis products shows large differences in sea level pressure and surface air temperature trends over the high-latitude Southern Ocean, with implications for studies of the atmosphere's role in driving ocean–sea ice changes. In this study, we use the established close coupling between sea ice cover and surface temperature to evaluate these reanalysis trends using the independent, 30-year sea ice record from 1980 to 2010. We demonstrate that sea ice trends are a reliable validation tool for most months of the year, although the sea ice–surface temperature coupling is weakest in summer when the surface energy budget is dominated by atmosphere-to-ocean heat fluxes. Based on our analysis, we find that surface air temperature trends in JRA55 are most consistent with satellite-observed sea ice trends over the polar waters of the Southern Ocean. William R. Hobbs, Andrew R. Klekociuk, and Yuhang Pan |
format |
Article in Journal/Newspaper |
author |
Hobbs, W.R. Klekociuk, A.R. Pan, Y. |
spellingShingle |
Hobbs, W.R. Klekociuk, A.R. Pan, Y. Validation of reanalysis Southern Ocean atmosphere trends using sea ice data |
author_facet |
Hobbs, W.R. Klekociuk, A.R. Pan, Y. |
author_sort |
Hobbs, W.R. |
title |
Validation of reanalysis Southern Ocean atmosphere trends using sea ice data |
title_short |
Validation of reanalysis Southern Ocean atmosphere trends using sea ice data |
title_full |
Validation of reanalysis Southern Ocean atmosphere trends using sea ice data |
title_fullStr |
Validation of reanalysis Southern Ocean atmosphere trends using sea ice data |
title_full_unstemmed |
Validation of reanalysis Southern Ocean atmosphere trends using sea ice data |
title_sort |
validation of reanalysis southern ocean atmosphere trends using sea ice data |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://hdl.handle.net/2440/132063 https://doi.org/10.5194/acp-20-14757-2020 |
long_lat |
ENVELOPE(-57.500,-57.500,-64.300,-64.300) |
geographic |
Antarctic Hobbs Southern Ocean The Antarctic |
geographic_facet |
Antarctic Hobbs Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
http://dx.doi.org/10.5194/acp-20-14757-2020 |
op_relation |
ARC Atmospheric Chemistry and Physics, 2020; 20(23):14757-14768 1680-7316 1680-7324 https://hdl.handle.net/2440/132063 doi:10.5194/acp-20-14757-2020 Klekociuk, A.R. [0000-0003-3335-0034] |
op_rights |
© Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. |
op_doi |
https://doi.org/10.5194/acp-20-14757-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
23 |
container_start_page |
14757 |
op_container_end_page |
14768 |
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1785522886602129408 |