Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons
Abstract Recently, the Antarctic Peninsula has received more attention due to the pronounced warming in that region. Non-glaciated coastal areas on the Peninsula can be significant energy sources for the atmosphere when they are exposed during summer despite the high degree of cloud associated with...
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Online Access: | http://dx.doi.org/10.1017/s095410200700082x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200700082X |
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crcambridgeupr:10.1017/s095410200700082x 2024-09-15T17:46:44+00:00 Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons Choi, Taejin Lee, Bang Yong Kim, Seong-Joong Yoon, Young Jun Lee, Hee-Choon 2007 http://dx.doi.org/10.1017/s095410200700082x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200700082X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 20, issue 1, page 99-112 ISSN 0954-1020 1365-2079 journal-article 2007 crcambridgeupr https://doi.org/10.1017/s095410200700082x 2024-07-03T04:03:22Z Abstract Recently, the Antarctic Peninsula has received more attention due to the pronounced warming in that region. Non-glaciated coastal areas on the Peninsula can be significant energy sources for the atmosphere when they are exposed during summer despite the high degree of cloud associated with the frequent passage of low pressure systems. An eddy covariance system was established in December 2002 to evaluate the turbulent energy exchanges between the atmosphere and a non-glaciated coastal area on King George Island. Monthly average downward shortwave radiation was less than 210 Wm -2 in summer. Due to the low albedo of 0.12, monthly average net radiation reached > 130 Wm -2 , a magnitude that was significantly larger than the reported magnitudes of < ~70 Wm -2 at glaciated areas with a high albedo on the Peninsula. The sum of monthly average sensible heat (< 64 Wm -2 ) and latent heat (< 20 Wm -2 ) fluxes amounted up to ~80 Wm -2 , which was an order of magnitude larger than those at glaciated areas on the Antarctic Peninsula. Given that non-glaciated areas should be enlarged if the warming continues, more attention may need to be paid to the role of non-glaciated areas in the local climate to predict climate change on the Antarctic Peninsula. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science King George Island Cambridge University Press Antarctic Science 20 1 99 112 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Recently, the Antarctic Peninsula has received more attention due to the pronounced warming in that region. Non-glaciated coastal areas on the Peninsula can be significant energy sources for the atmosphere when they are exposed during summer despite the high degree of cloud associated with the frequent passage of low pressure systems. An eddy covariance system was established in December 2002 to evaluate the turbulent energy exchanges between the atmosphere and a non-glaciated coastal area on King George Island. Monthly average downward shortwave radiation was less than 210 Wm -2 in summer. Due to the low albedo of 0.12, monthly average net radiation reached > 130 Wm -2 , a magnitude that was significantly larger than the reported magnitudes of < ~70 Wm -2 at glaciated areas with a high albedo on the Peninsula. The sum of monthly average sensible heat (< 64 Wm -2 ) and latent heat (< 20 Wm -2 ) fluxes amounted up to ~80 Wm -2 , which was an order of magnitude larger than those at glaciated areas on the Antarctic Peninsula. Given that non-glaciated areas should be enlarged if the warming continues, more attention may need to be paid to the role of non-glaciated areas in the local climate to predict climate change on the Antarctic Peninsula. |
format |
Article in Journal/Newspaper |
author |
Choi, Taejin Lee, Bang Yong Kim, Seong-Joong Yoon, Young Jun Lee, Hee-Choon |
spellingShingle |
Choi, Taejin Lee, Bang Yong Kim, Seong-Joong Yoon, Young Jun Lee, Hee-Choon Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons |
author_facet |
Choi, Taejin Lee, Bang Yong Kim, Seong-Joong Yoon, Young Jun Lee, Hee-Choon |
author_sort |
Choi, Taejin |
title |
Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons |
title_short |
Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons |
title_full |
Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons |
title_fullStr |
Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons |
title_full_unstemmed |
Net radiation and turbulent energy exchanges over a non-glaciated coastal area on King George Island during four summer seasons |
title_sort |
net radiation and turbulent energy exchanges over a non-glaciated coastal area on king george island during four summer seasons |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1017/s095410200700082x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200700082X |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science King George Island |
op_source |
Antarctic Science volume 20, issue 1, page 99-112 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410200700082x |
container_title |
Antarctic Science |
container_volume |
20 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
112 |
_version_ |
1810495078454525952 |