Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009
SSM/I sea ice concentration and CLARA black-sky composite albedo were used to estimate sea ice albedo in the region 70 degrees N-82 degrees N, 130 degrees W-180 degrees W. The long-term trends and seasonal evolutions of ice concentration, composite albedo, and ice albedo were then obtained. In July-...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/10138/224136 |
id |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/224136 |
---|---|
record_format |
openpolar |
spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/224136 2024-01-07T09:38:02+01:00 Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 Lei, Ruibo Tian-Kunze, Xiangshan Leppäranta, Matti Wang, Jia Kaleschke, Lars Zhang, Zhanhai Department of Physics 2017-09-14T09:57:13Z 17 application/pdf http://hdl.handle.net/10138/224136 eng eng American Geophysical Union 10.1002/2016JC011831 This work was financially supported by grants from the National Natural Science Foundation of China (41476170), Chinese Polar Environment Comprehensive Investigation and Assessment Programs (CHINARE2016-03-01/04-03/ 04-04), and Chinese Arctic and Antarctic Administration (IC2014007). M.L. was supported by the Nordic Center of Excellence Cryosphere-Atmosphere Interactions in a Changing Arctic Climate (CRAICC). J.W. was supported by the NOAA CPO Office of Arctic Research through RUSALCA project (1821). L.K. was funded by the DFG (EXC177). We also wish to acknowledge CMSAF for providing CLARA-A1 albedo data, NSIDC for SSM/I ice concentration data, NASA Cryospheric Sciences Research Portal for sea ice melt data, ICDC of University of Hamburg for MODIS melt pond data, ECWMF for ERA-interim data, and NCEP for Reanalysis 2 data. The satellite-derived sea ice albedo is available from the authors on request (leiruibo@pric.org.cn). Lei , R , Tian-Kunze , X , Leppäranta , M , Wang , J , Kaleschke , L & Zhang , Z 2016 , ' Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 ' , Journal of Geophysical Research : Oceans , vol. 121 , no. 8 , pp. 5470-5486 . https://doi.org/10.1002/2016JC011831 84980407335 662154c6-775c-4760-a964-300cade15cdb http://hdl.handle.net/10138/224136 000386912700005 cc_by_nc_sa openAccess info:eu-repo/semantics/openAccess SEASONAL EVOLUTION MELT PONDS AMPLIFICATION IMPACTS 1171 Geosciences 114 Physical sciences Article publishedVersion 2017 ftunivhelsihelda 2023-12-14T00:10:10Z SSM/I sea ice concentration and CLARA black-sky composite albedo were used to estimate sea ice albedo in the region 70 degrees N-82 degrees N, 130 degrees W-180 degrees W. The long-term trends and seasonal evolutions of ice concentration, composite albedo, and ice albedo were then obtained. In July-August 1982-2009, the linear trend of the composite albedo and the ice albedo was -0.069 and -0.046 units per decade, respectively. During 1 June to 19 August, melting of sea ice resulted in an increase of solar heat input to the ice-ocean system by 282 MJ.m(-2) from 1982 to 2009. However, because of the counter-balancing effects of the loss of sea ice area and the enhanced ice surface melting, the trend of solar heat input to the ice was insignificant. The summer evolution of ice albedo matched the ice surface melting and ponding well at basin scale. The ice albedo showed a large difference between the multiyear and first-year ice because the latter melted completely by the end of a melt season. At the SHEBA geolocations, a distinct change in the ice albedo has occurred since 2007, because most of the multiyear ice has been replaced by first-year ice. A positive polarity in the Arctic Dipole Anomaly could be partly responsible for the rapid loss of summer ice within the study region in the recent years by bringing warmer air masses from the south and advecting more ice toward the north. Both these effects would enhance ice-albedo feedback. Peer reviewed Article in Journal/Newspaper albedo Arctic Arctic Arctic Ocean Sea ice HELDA – University of Helsinki Open Repository Arctic Arctic Ocean Pacific Journal of Geophysical Research: Oceans 121 8 5470 5486 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
SEASONAL EVOLUTION MELT PONDS AMPLIFICATION IMPACTS 1171 Geosciences 114 Physical sciences |
spellingShingle |
SEASONAL EVOLUTION MELT PONDS AMPLIFICATION IMPACTS 1171 Geosciences 114 Physical sciences Lei, Ruibo Tian-Kunze, Xiangshan Leppäranta, Matti Wang, Jia Kaleschke, Lars Zhang, Zhanhai Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 |
topic_facet |
SEASONAL EVOLUTION MELT PONDS AMPLIFICATION IMPACTS 1171 Geosciences 114 Physical sciences |
description |
SSM/I sea ice concentration and CLARA black-sky composite albedo were used to estimate sea ice albedo in the region 70 degrees N-82 degrees N, 130 degrees W-180 degrees W. The long-term trends and seasonal evolutions of ice concentration, composite albedo, and ice albedo were then obtained. In July-August 1982-2009, the linear trend of the composite albedo and the ice albedo was -0.069 and -0.046 units per decade, respectively. During 1 June to 19 August, melting of sea ice resulted in an increase of solar heat input to the ice-ocean system by 282 MJ.m(-2) from 1982 to 2009. However, because of the counter-balancing effects of the loss of sea ice area and the enhanced ice surface melting, the trend of solar heat input to the ice was insignificant. The summer evolution of ice albedo matched the ice surface melting and ponding well at basin scale. The ice albedo showed a large difference between the multiyear and first-year ice because the latter melted completely by the end of a melt season. At the SHEBA geolocations, a distinct change in the ice albedo has occurred since 2007, because most of the multiyear ice has been replaced by first-year ice. A positive polarity in the Arctic Dipole Anomaly could be partly responsible for the rapid loss of summer ice within the study region in the recent years by bringing warmer air masses from the south and advecting more ice toward the north. Both these effects would enhance ice-albedo feedback. Peer reviewed |
author2 |
Department of Physics |
format |
Article in Journal/Newspaper |
author |
Lei, Ruibo Tian-Kunze, Xiangshan Leppäranta, Matti Wang, Jia Kaleschke, Lars Zhang, Zhanhai |
author_facet |
Lei, Ruibo Tian-Kunze, Xiangshan Leppäranta, Matti Wang, Jia Kaleschke, Lars Zhang, Zhanhai |
author_sort |
Lei, Ruibo |
title |
Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 |
title_short |
Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 |
title_full |
Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 |
title_fullStr |
Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 |
title_full_unstemmed |
Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 |
title_sort |
changes in summer sea ice, albedo, and portioning of surface solar radiation in the pacific sector of arctic ocean during 1982-2009 |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
http://hdl.handle.net/10138/224136 |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
albedo Arctic Arctic Arctic Ocean Sea ice |
genre_facet |
albedo Arctic Arctic Arctic Ocean Sea ice |
op_relation |
10.1002/2016JC011831 This work was financially supported by grants from the National Natural Science Foundation of China (41476170), Chinese Polar Environment Comprehensive Investigation and Assessment Programs (CHINARE2016-03-01/04-03/ 04-04), and Chinese Arctic and Antarctic Administration (IC2014007). M.L. was supported by the Nordic Center of Excellence Cryosphere-Atmosphere Interactions in a Changing Arctic Climate (CRAICC). J.W. was supported by the NOAA CPO Office of Arctic Research through RUSALCA project (1821). L.K. was funded by the DFG (EXC177). We also wish to acknowledge CMSAF for providing CLARA-A1 albedo data, NSIDC for SSM/I ice concentration data, NASA Cryospheric Sciences Research Portal for sea ice melt data, ICDC of University of Hamburg for MODIS melt pond data, ECWMF for ERA-interim data, and NCEP for Reanalysis 2 data. The satellite-derived sea ice albedo is available from the authors on request (leiruibo@pric.org.cn). Lei , R , Tian-Kunze , X , Leppäranta , M , Wang , J , Kaleschke , L & Zhang , Z 2016 , ' Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009 ' , Journal of Geophysical Research : Oceans , vol. 121 , no. 8 , pp. 5470-5486 . https://doi.org/10.1002/2016JC011831 84980407335 662154c6-775c-4760-a964-300cade15cdb http://hdl.handle.net/10138/224136 000386912700005 |
op_rights |
cc_by_nc_sa openAccess info:eu-repo/semantics/openAccess |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
121 |
container_issue |
8 |
container_start_page |
5470 |
op_container_end_page |
5486 |
_version_ |
1787428538854408192 |