Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study
The recent rapid changes in Arctic sea ice have occurred not only in ice thickness and extent, but also in the microstructure of ice. To understand the role of microstructure on partitioning of incident solar shortwave radiation within the ice and upper ocean, this study investigated the sensitivity...
Published in: | Frontiers in Marine Science |
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Language: | English |
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Online Access: | http://hdl.handle.net/10138/354301 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/354301 2024-01-07T09:38:02+01:00 Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study Yu, Miao Lu, Peng Cheng, Bin Leppäranta, Matti Li, Zhijun Institute for Atmospheric and Earth System Research (INAR) 2023-02-08T09:17:02Z 14 application/pdf http://hdl.handle.net/10138/354301 eng eng Frontiers Media 10.3389/fmars.2022.861994 Yu , M , Lu , P , Cheng , B , Leppäranta , M & Li , Z 2022 , ' Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study ' , Frontiers in Marine Science , vol. 9 . https://doi.org/10.3389/fmars.2022.861994 8753d0bd-3ccf-48e8-b4ea-e997fabf3d47 http://hdl.handle.net/10138/354301 000796408800001 cc_by openAccess info:eu-repo/semantics/openAccess Arctic Microstructure Optical properties Radiation transfer Sea ice 1172 Environmental sciences Article publishedVersion 2023 ftunivhelsihelda 2023-12-14T00:05:55Z The recent rapid changes in Arctic sea ice have occurred not only in ice thickness and extent, but also in the microstructure of ice. To understand the role of microstructure on partitioning of incident solar shortwave radiation within the ice and upper ocean, this study investigated the sensitivity of the optical properties of summer sea ice on ice microstructures such as the volume fraction, size, and vertical distribution of gas bubbles, brine pockets, and particulate matter (PM). The results show that gas bubbles are the predominant scatterers within sea ice. Their effects on the scattering coefficient and ice albedo are 5 and 20 times stronger respectively than the effect of brine pockets. Albedo and transmittance of ice decrease with higher concentration and larger size of PM particles. A 4-cm top layer of ice with high PM concentration (50 g/m(3)) results in a 10% increase in radiation absorption. The role of ice microstructure in the partitioning of radiation transfer is more important for seasonal than for multiyear ice, and more important for ponded than for snow-covered ice. Varying ice microstructure can obviously alter solar radiation transfer in the ice-ocean system, even with a constant ice thickness. Our results suggest that numerical models should take the variable microstructure of sea ice into account to improve model accuracy and to understand the interaction between internal variations in Arctic sea ice and the ocean, especially in summer. Peer reviewed Article in Journal/Newspaper albedo Arctic Arctic Sea ice HELDA – University of Helsinki Open Repository Arctic Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Arctic Microstructure Optical properties Radiation transfer Sea ice 1172 Environmental sciences |
spellingShingle |
Arctic Microstructure Optical properties Radiation transfer Sea ice 1172 Environmental sciences Yu, Miao Lu, Peng Cheng, Bin Leppäranta, Matti Li, Zhijun Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study |
topic_facet |
Arctic Microstructure Optical properties Radiation transfer Sea ice 1172 Environmental sciences |
description |
The recent rapid changes in Arctic sea ice have occurred not only in ice thickness and extent, but also in the microstructure of ice. To understand the role of microstructure on partitioning of incident solar shortwave radiation within the ice and upper ocean, this study investigated the sensitivity of the optical properties of summer sea ice on ice microstructures such as the volume fraction, size, and vertical distribution of gas bubbles, brine pockets, and particulate matter (PM). The results show that gas bubbles are the predominant scatterers within sea ice. Their effects on the scattering coefficient and ice albedo are 5 and 20 times stronger respectively than the effect of brine pockets. Albedo and transmittance of ice decrease with higher concentration and larger size of PM particles. A 4-cm top layer of ice with high PM concentration (50 g/m(3)) results in a 10% increase in radiation absorption. The role of ice microstructure in the partitioning of radiation transfer is more important for seasonal than for multiyear ice, and more important for ponded than for snow-covered ice. Varying ice microstructure can obviously alter solar radiation transfer in the ice-ocean system, even with a constant ice thickness. Our results suggest that numerical models should take the variable microstructure of sea ice into account to improve model accuracy and to understand the interaction between internal variations in Arctic sea ice and the ocean, especially in summer. Peer reviewed |
author2 |
Institute for Atmospheric and Earth System Research (INAR) |
format |
Article in Journal/Newspaper |
author |
Yu, Miao Lu, Peng Cheng, Bin Leppäranta, Matti Li, Zhijun |
author_facet |
Yu, Miao Lu, Peng Cheng, Bin Leppäranta, Matti Li, Zhijun |
author_sort |
Yu, Miao |
title |
Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study |
title_short |
Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study |
title_full |
Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study |
title_fullStr |
Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study |
title_full_unstemmed |
Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study |
title_sort |
impact of microstructure on solar radiation transfer within sea ice during summer in the arctic : a model sensitivity study |
publisher |
Frontiers Media |
publishDate |
2023 |
url |
http://hdl.handle.net/10138/354301 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Arctic Sea ice |
genre_facet |
albedo Arctic Arctic Sea ice |
op_relation |
10.3389/fmars.2022.861994 Yu , M , Lu , P , Cheng , B , Leppäranta , M & Li , Z 2022 , ' Impact of Microstructure on Solar Radiation Transfer Within Sea Ice During Summer in the Arctic : A Model Sensitivity Study ' , Frontiers in Marine Science , vol. 9 . https://doi.org/10.3389/fmars.2022.861994 8753d0bd-3ccf-48e8-b4ea-e997fabf3d47 http://hdl.handle.net/10138/354301 000796408800001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1787429066143432704 |