Important Ice Processes Are Missed by the Community Earth System Model in Southern Ocean Mixed‐Phase Clouds: Bridging SOCRATES Observations to Model Developments

Zhao, Xi; Liu, Xiaohong; Burrows, Susannah; DeMott, Paul J.; Diao, Minghui; McFarquhar, Greg M.; Patade, Sachin; Phillips, Vaughan; Roberts, Greg C.; Sanchez, Kevin J.; Shi, Yang; Zhang, Meng

doi:10.1029/2022jd037513

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Important Ice Processes Are Missed by the Community Earth System Model in Southern Ocean Mixed‐Phase Clouds: Bridging SOCRATES Observations to Model Developments

2023
By Zhao, Xi ; Liu, Xiaohong ; Burrows, Susannah ; ...
Source: Journal of Geophysical Research: Atmospheres, 128(4)

[PDF-2.52 MB]

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Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Zhao, Xi ; Liu, Xiaohong ; Burrows, Susannah ; DeMott, Paul J. ; Diao, Minghui ; ... More +

Zhao, Xi ; Liu, Xiaohong ; Burrows, Susannah ; DeMott, Paul J. ; Diao, Minghui ; McFarquhar, Greg M. ; Patade, Sachin ; Phillips, Vaughan ; Roberts, Greg C. ; Sanchez, Kevin J. ; Shi, Yang ; Zhang, Meng Less -
NOAA Program & Office:

CIWRO (Cooperative Institute for Severe and High-Impact Weather Research and Operations)
Description:

Global climate models (GCMs) are challenged by difficulties in simulating cloud phase and cloud radiative effect over the Southern Ocean (SO). Some of the new-generation GCMs predict too much liquid and too little ice in mixed-phase clouds. This misrepresentation of cloud phase in GCMs results in weaker negative cloud feedback over the SO and a higher climate sensitivity. Based on a model comparison with observational data obtained during the Southern Ocean Cloud Radiation and Aerosol Transport Experimental Study, this study addresses a key uncertainty in the Community Earth System Model version 2 (CESM2) related to cloud phase, namely ice formation in pristine remote SO clouds. It is found that sea spray organic aerosols
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Atmospheric Science Earth And Planetary Sciences (miscellaneous) Geophysics Space And Planetary Science
Source:

Journal of Geophysical Research: Atmospheres, 128(4)
DOI:

https://doi.org/10.1029/2022jd037513
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2169-897X;2169-8996;
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PDF
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:37fc016db8f6689d7be5d5c1a4b212345d0db33e5d85f1ec19c18dd2e0d56696
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