Extratropical Shortwave Cloud Feedbacks in the Context of the Global Circulation and Hydrological Cycle

McCoy, Daniel T.; Field, Paul; Frazer, Michelle E.; Zelinka, Mark D.; Elsaesser, Gregory S.; Mülmenstädt, Johannes; Tan, Ivy; Myers, Timothy A.; Lebo, Zachary J.

doi:10.1029/2021GL097154

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Extratropical Shortwave Cloud Feedbacks in the Context of the Global Circulation and Hydrological Cycle

2022
By McCoy, Daniel T. ; Field, Paul ; Frazer, Michelle E. ; ...
Source: Geophysical Research Letters, 49(8)

[PDF-1.85 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

McCoy, Daniel T. ; Field, Paul ; Frazer, Michelle E. ; Zelinka, Mark D. ; Elsaesser, Gregory S. ; ... More +

McCoy, Daniel T. ; Field, Paul ; Frazer, Michelle E. ; Zelinka, Mark D. ; Elsaesser, Gregory S. ; Mülmenstädt, Johannes ; Tan, Ivy ; Myers, Timothy A. ; Lebo, Zachary J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; PSL (Physical Sciences Laboratory)

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; PSL (Physical Sciences Laboratory) Less -
Description:

Shortwave (SW) cloud feedback (SWFB) is the primary driver of uncertainty in the effective climate sensitivity (ECS) predicted by global climate models (GCMs). ECS for several GCMs participating in the sixth assessment report exceed 5K, above the fifth assessment report “likely” maximum (4.5K) due to extratropical SWFB's that are more positive than those simulated in the previous generation of GCMs. Here we show that across 57 GCMs Southern Ocean SWFB can be predicted from the sensitivity of column- integrated liquid water mass (LWP) to moisture convergence and to surface temperature. The response of LWP to moisture convergence and the response of albedo to LWP anti-correlate across GCMs. This is because
Keywords:

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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 49(8)
DOI:

https://doi.org/10.1029/2021GL097154
ISSN:

0094-8276;1944-8007;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA17OAR4320101
Rights Information:

Other
Rights Statement:

Crown copyright. This article is published with the permission of the Controller of HMSO and the Queen's Printer for Scotland.
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Library
Main Document Checksum:

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urn:sha256:80f35d4979b797b00d962ada8589e01b5e1d3733fd60e780fbcc187950930479
Download URL:

https://repository.library.noaa.gov/view/noaa/54039/noaa_54039_DS1.pdf
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