Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change
Underestimation of the proportion of supercooled liquid in mixed‐phase clouds in climate models has called into question its impact on Arctic climate change. We show that correcting for this bias in the CESM model can either enhance or reduce Arctic amplification depending on the microphysical chara...
Published in: | Geophysical Research Letters |
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American Geophysical Union
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ftoslouniv:oai:www.duo.uio.no:10852/70717 2023-05-15T14:27:00+02:00 Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change Tan, Ivy Storelvmo, Trude 2019-05-22T11:33:46Z http://hdl.handle.net/10852/70717 http://urn.nb.no/URN:NBN:no-73843 https://doi.org/10.1029/2018GL081871 EN eng American Geophysical Union http://urn.nb.no/URN:NBN:no-73843 Tan, Ivy Storelvmo, Trude . Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change. Geophysical Research Letters. 2019 http://hdl.handle.net/10852/70717 1699443 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geophysical Research Letters&rft.volume=&rft.spage=&rft.date=2019 Geophysical Research Letters https://doi.org/10.1029/2018GL081871 URN:NBN:no-73843 Fulltext https://www.duo.uio.no/bitstream/handle/10852/70717/2/Tan_et_al-2019-Geophysical_Research_Letters.pdf Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND 0094-8276 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.1029/2018GL081871 2020-06-21T08:53:36Z Underestimation of the proportion of supercooled liquid in mixed‐phase clouds in climate models has called into question its impact on Arctic climate change. We show that correcting for this bias in the CESM model can either enhance or reduce Arctic amplification depending on the microphysical characteristics of the clouds as a corollary to the cloud phase feedback. Replacement of ice with liquid in the cloud phase feedback results in more downward longwave radiation, which is effectively trapped as heat at the surface in the Arctic due to its unique stable stratification conditions, and this ultimately leads to a more positive lapse rate feedback. The larger the ice particles are to begin with, the stronger Arctic amplification becomes due to the lower precipitation efficiency of liquid droplets compared to ice crystals. Our results emphasize the importance of realistic representations of microphysical processes in mixed‐phase clouds, particularly in the Arctic. Article in Journal/Newspaper Arctic Arctic Climate change Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Geophysical Research Letters 46 5 2894 2902 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Underestimation of the proportion of supercooled liquid in mixed‐phase clouds in climate models has called into question its impact on Arctic climate change. We show that correcting for this bias in the CESM model can either enhance or reduce Arctic amplification depending on the microphysical characteristics of the clouds as a corollary to the cloud phase feedback. Replacement of ice with liquid in the cloud phase feedback results in more downward longwave radiation, which is effectively trapped as heat at the surface in the Arctic due to its unique stable stratification conditions, and this ultimately leads to a more positive lapse rate feedback. The larger the ice particles are to begin with, the stronger Arctic amplification becomes due to the lower precipitation efficiency of liquid droplets compared to ice crystals. Our results emphasize the importance of realistic representations of microphysical processes in mixed‐phase clouds, particularly in the Arctic. |
format |
Article in Journal/Newspaper |
author |
Tan, Ivy Storelvmo, Trude |
spellingShingle |
Tan, Ivy Storelvmo, Trude Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change |
author_facet |
Tan, Ivy Storelvmo, Trude |
author_sort |
Tan, Ivy |
title |
Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change |
title_short |
Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change |
title_full |
Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change |
title_fullStr |
Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change |
title_full_unstemmed |
Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change |
title_sort |
evidence of strong contribution from mixed-phase clouds to arctic climate change |
publisher |
American Geophysical Union |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/70717 http://urn.nb.no/URN:NBN:no-73843 https://doi.org/10.1029/2018GL081871 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change |
genre_facet |
Arctic Arctic Climate change |
op_source |
0094-8276 |
op_relation |
http://urn.nb.no/URN:NBN:no-73843 Tan, Ivy Storelvmo, Trude . Evidence of Strong Contribution from Mixed-Phase Clouds to Arctic Climate Change. Geophysical Research Letters. 2019 http://hdl.handle.net/10852/70717 1699443 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geophysical Research Letters&rft.volume=&rft.spage=&rft.date=2019 Geophysical Research Letters https://doi.org/10.1029/2018GL081871 URN:NBN:no-73843 Fulltext https://www.duo.uio.no/bitstream/handle/10852/70717/2/Tan_et_al-2019-Geophysical_Research_Letters.pdf |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1029/2018GL081871 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
5 |
container_start_page |
2894 |
op_container_end_page |
2902 |
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1766300557211860992 |