The impact of arctic winter infrared radiation on early summer sea ice
The Arctic summer sea ice area has been rapidly decreasing in recent decades. In addition to this trend, substantial interannual variability is present, as is highlighted by the recovery in sea ice area in 2013 following the record minimum in 2012. This interannual variability of the Arctic summer s...
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ftseoulnuniv:oai:s-space.snu.ac.kr:10371/207158 2024-09-15T17:53:21+00:00 The impact of arctic winter infrared radiation on early summer sea ice Park, Hyo-Seok Lee, Sukyoung Kosaka, Yu Son, Seok-Woo Kim, Sang-Woo Son, Seok-Woo Kim, Sang-Woo 2018-10-26 https://hdl.handle.net/10371/207158 https://doi.org/10.1175/JCLI-D-14-00773.1 영어 unknown American Meteorological Society Journal of Climate, Vol.28 No.15, pp.6281-6296 0894-8755 https://hdl.handle.net/10371/207158 doi:10.1175/JCLI-D-14-00773.1 000359532800025 2-s2.0-84942851242 63271 MODEL VARIABILITY ATMOSPHERE EXTENT OCEAN Arctic Climate models Longwave radiation Satellite observations Sea ice Surface fluxes Article ART 2018 ftseoulnuniv https://doi.org/10.1175/JCLI-D-14-00773.1 2024-08-13T23:46:33Z The Arctic summer sea ice area has been rapidly decreasing in recent decades. In addition to this trend, substantial interannual variability is present, as is highlighted by the recovery in sea ice area in 2013 following the record minimum in 2012. This interannual variability of the Arctic summer sea ice area has been attributed to the springtime weather disturbances. Here, by utilizing reanalysis- and satellite-based sea ice data, this study shows that summers with unusually small sea ice area are preceded by winters with anomalously strong downward longwave radiation over the Eurasian sector of the Arctic Ocean. This anomalous wintertime radiative forcing at the surface is up to 10-15 W m(-2), which is about twice as strong than that during the spring. During the same winters, the poleward moisture and warm-air intrusions into the Eurasian sector of the Arctic Ocean are anomalously strong and the resulting moisture convergence field closely resembles positive anomalies in column-integrated water vapor and tropospheric temperature. Climate model simulations support the above-mentioned findings and further show that the anomalously strong wintertime radiative forcing can decrease sea ice thickness over wide areas of the Arctic Ocean, especially over the Eurasian sector. During the winters preceding the anomalously small summer sea ice area, the upper ocean of the model is anomalously warm over the Barents Sea, indicating that the upper-ocean heat content contributes to winter sea ice thinning. Finally, mass divergence by ice drift in the preceding winter and spring contributes to the thinning of sea ice over the East Siberian and Chukchi Seas, where radiative forcing and upper-ocean heat content anomalies are relatively weak. Y 1 Article in Journal/Newspaper Arctic Ocean Barents Sea Chukchi Sea ice Seoul National University: S-Space Journal of Climate 28 15 6281 6296 |
institution |
Open Polar |
collection |
Seoul National University: S-Space |
op_collection_id |
ftseoulnuniv |
language |
unknown |
topic |
MODEL VARIABILITY ATMOSPHERE EXTENT OCEAN Arctic Climate models Longwave radiation Satellite observations Sea ice Surface fluxes |
spellingShingle |
MODEL VARIABILITY ATMOSPHERE EXTENT OCEAN Arctic Climate models Longwave radiation Satellite observations Sea ice Surface fluxes Park, Hyo-Seok Lee, Sukyoung Kosaka, Yu Son, Seok-Woo Kim, Sang-Woo The impact of arctic winter infrared radiation on early summer sea ice |
topic_facet |
MODEL VARIABILITY ATMOSPHERE EXTENT OCEAN Arctic Climate models Longwave radiation Satellite observations Sea ice Surface fluxes |
description |
The Arctic summer sea ice area has been rapidly decreasing in recent decades. In addition to this trend, substantial interannual variability is present, as is highlighted by the recovery in sea ice area in 2013 following the record minimum in 2012. This interannual variability of the Arctic summer sea ice area has been attributed to the springtime weather disturbances. Here, by utilizing reanalysis- and satellite-based sea ice data, this study shows that summers with unusually small sea ice area are preceded by winters with anomalously strong downward longwave radiation over the Eurasian sector of the Arctic Ocean. This anomalous wintertime radiative forcing at the surface is up to 10-15 W m(-2), which is about twice as strong than that during the spring. During the same winters, the poleward moisture and warm-air intrusions into the Eurasian sector of the Arctic Ocean are anomalously strong and the resulting moisture convergence field closely resembles positive anomalies in column-integrated water vapor and tropospheric temperature. Climate model simulations support the above-mentioned findings and further show that the anomalously strong wintertime radiative forcing can decrease sea ice thickness over wide areas of the Arctic Ocean, especially over the Eurasian sector. During the winters preceding the anomalously small summer sea ice area, the upper ocean of the model is anomalously warm over the Barents Sea, indicating that the upper-ocean heat content contributes to winter sea ice thinning. Finally, mass divergence by ice drift in the preceding winter and spring contributes to the thinning of sea ice over the East Siberian and Chukchi Seas, where radiative forcing and upper-ocean heat content anomalies are relatively weak. Y 1 |
author2 |
Son, Seok-Woo Kim, Sang-Woo |
format |
Article in Journal/Newspaper |
author |
Park, Hyo-Seok Lee, Sukyoung Kosaka, Yu Son, Seok-Woo Kim, Sang-Woo |
author_facet |
Park, Hyo-Seok Lee, Sukyoung Kosaka, Yu Son, Seok-Woo Kim, Sang-Woo |
author_sort |
Park, Hyo-Seok |
title |
The impact of arctic winter infrared radiation on early summer sea ice |
title_short |
The impact of arctic winter infrared radiation on early summer sea ice |
title_full |
The impact of arctic winter infrared radiation on early summer sea ice |
title_fullStr |
The impact of arctic winter infrared radiation on early summer sea ice |
title_full_unstemmed |
The impact of arctic winter infrared radiation on early summer sea ice |
title_sort |
impact of arctic winter infrared radiation on early summer sea ice |
publisher |
American Meteorological Society |
publishDate |
2018 |
url |
https://hdl.handle.net/10371/207158 https://doi.org/10.1175/JCLI-D-14-00773.1 |
genre |
Arctic Ocean Barents Sea Chukchi Sea ice |
genre_facet |
Arctic Ocean Barents Sea Chukchi Sea ice |
op_relation |
Journal of Climate, Vol.28 No.15, pp.6281-6296 0894-8755 https://hdl.handle.net/10371/207158 doi:10.1175/JCLI-D-14-00773.1 000359532800025 2-s2.0-84942851242 63271 |
op_doi |
https://doi.org/10.1175/JCLI-D-14-00773.1 |
container_title |
Journal of Climate |
container_volume |
28 |
container_issue |
15 |
container_start_page |
6281 |
op_container_end_page |
6296 |
_version_ |
1810295407616458752 |