Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice
The meltwater scavenging coefficient (MSC) of black carbon (BC) is a crucial parameter in snow and sea ice models, as it determines the BC enrichment in the surface layer of melting snow over sea ice and therefore modulates the BC–snow–albedo feedbacks. We present a new method for MSC estimation by...
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Copernicus Publications
2019
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00049758 2023-05-15T13:11:56+02:00 Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice Dou, Tingfeng Du, Zhiheng Li, Shutong Zhang, Yulan Zhang, Qi Hao, Mingju Li, Chuanjin Tian, Biao Ding, Minghu Xiao, Cunde 2019-12 electronic https://doi.org/10.5194/tc-13-3309-2019 https://noa.gwlb.de/receive/cop_mods_00049758 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049377/tc-13-3309-2019.pdf https://tc.copernicus.org/articles/13/3309/2019/tc-13-3309-2019.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-3309-2019 https://noa.gwlb.de/receive/cop_mods_00049758 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049377/tc-13-3309-2019.pdf https://tc.copernicus.org/articles/13/3309/2019/tc-13-3309-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/tc-13-3309-2019 2022-02-08T22:37:10Z The meltwater scavenging coefficient (MSC) of black carbon (BC) is a crucial parameter in snow and sea ice models, as it determines the BC enrichment in the surface layer of melting snow over sea ice and therefore modulates the BC–snow–albedo feedbacks. We present a new method for MSC estimation by sampling the melt–refreeze ice layer that is produced from refreezing of the meltwater within snowpack and its overlying snow and measuring their physical characteristics in Elson Lagoon northeast of Utqiaġvik (formerly Barrow), Alaska, during the melting season. The bias of estimated MSC ranges from −5.4 % to 7.3 %, which is not exactly dependent on the degree of ablation. The average MSC value calculated with this proposed method is slightly lower than that derived from the repeating sampling (RS) method in Elson Lagoon while still being within its best estimate range. Further estimation demonstrates that the MSC in the Canada Basin (23.6 %±2.1 %) is close to that in Greenland (23.0 %±12.5 %) and larger than that in the Chukchi Sea (17.9 %±5.0 %) in the northwest of Utqiaġvik. Elson Lagoon has the lowest MSC (14.5 %±2.6 %) in the study areas. The method suggested in this study provides a possible approach for large-scale measurements of MSC over the sea ice area in the Arctic. Of course, this method depends on the presence of a melt–refreeze ice layer in the observation area. Article in Journal/Newspaper albedo Arctic Barrow black carbon canada basin Chukchi Chukchi Sea Greenland Sea ice The Cryosphere Alaska Niedersächsisches Online-Archiv NOA Arctic Chukchi Sea Canada Greenland The Cryosphere 13 12 3309 3316 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Dou, Tingfeng Du, Zhiheng Li, Shutong Zhang, Yulan Zhang, Qi Hao, Mingju Li, Chuanjin Tian, Biao Ding, Minghu Xiao, Cunde Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
topic_facet |
article Verlagsveröffentlichung |
description |
The meltwater scavenging coefficient (MSC) of black carbon (BC) is a crucial parameter in snow and sea ice models, as it determines the BC enrichment in the surface layer of melting snow over sea ice and therefore modulates the BC–snow–albedo feedbacks. We present a new method for MSC estimation by sampling the melt–refreeze ice layer that is produced from refreezing of the meltwater within snowpack and its overlying snow and measuring their physical characteristics in Elson Lagoon northeast of Utqiaġvik (formerly Barrow), Alaska, during the melting season. The bias of estimated MSC ranges from −5.4 % to 7.3 %, which is not exactly dependent on the degree of ablation. The average MSC value calculated with this proposed method is slightly lower than that derived from the repeating sampling (RS) method in Elson Lagoon while still being within its best estimate range. Further estimation demonstrates that the MSC in the Canada Basin (23.6 %±2.1 %) is close to that in Greenland (23.0 %±12.5 %) and larger than that in the Chukchi Sea (17.9 %±5.0 %) in the northwest of Utqiaġvik. Elson Lagoon has the lowest MSC (14.5 %±2.6 %) in the study areas. The method suggested in this study provides a possible approach for large-scale measurements of MSC over the sea ice area in the Arctic. Of course, this method depends on the presence of a melt–refreeze ice layer in the observation area. |
format |
Article in Journal/Newspaper |
author |
Dou, Tingfeng Du, Zhiheng Li, Shutong Zhang, Yulan Zhang, Qi Hao, Mingju Li, Chuanjin Tian, Biao Ding, Minghu Xiao, Cunde |
author_facet |
Dou, Tingfeng Du, Zhiheng Li, Shutong Zhang, Yulan Zhang, Qi Hao, Mingju Li, Chuanjin Tian, Biao Ding, Minghu Xiao, Cunde |
author_sort |
Dou, Tingfeng |
title |
Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
title_short |
Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
title_full |
Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
title_fullStr |
Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
title_full_unstemmed |
Brief communication: An alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
title_sort |
brief communication: an alternative method for estimating the scavenging efficiency of black carbon by meltwater over sea ice |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-13-3309-2019 https://noa.gwlb.de/receive/cop_mods_00049758 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049377/tc-13-3309-2019.pdf https://tc.copernicus.org/articles/13/3309/2019/tc-13-3309-2019.pdf |
geographic |
Arctic Chukchi Sea Canada Greenland |
geographic_facet |
Arctic Chukchi Sea Canada Greenland |
genre |
albedo Arctic Barrow black carbon canada basin Chukchi Chukchi Sea Greenland Sea ice The Cryosphere Alaska |
genre_facet |
albedo Arctic Barrow black carbon canada basin Chukchi Chukchi Sea Greenland Sea ice The Cryosphere Alaska |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-3309-2019 https://noa.gwlb.de/receive/cop_mods_00049758 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00049377/tc-13-3309-2019.pdf https://tc.copernicus.org/articles/13/3309/2019/tc-13-3309-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-13-3309-2019 |
container_title |
The Cryosphere |
container_volume |
13 |
container_issue |
12 |
container_start_page |
3309 |
op_container_end_page |
3316 |
_version_ |
1766249592745099264 |