The Strength of Low-Cloud Feedbacks and Tropical Climate: A CESM Sensitivity Study

Erfani, Ehsan; Burls, Natalie J.

doi:10.1175/JCLI-D-18-0551.1

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The Strength of Low-Cloud Feedbacks and Tropical Climate: A CESM Sensitivity Study

2019
By Erfani, Ehsan ; Burls, Natalie J.
Source: Journal of Climate, 32(9), 2497–2516

[PDF-2.42 MB]

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Journal Title:

Journal of Climate
Personal Author:

Erfani, Ehsan ; Burls, Natalie J.

Erfani, Ehsan ; Burls, Natalie J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office)

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office) Less -
Description:

Variability in the strength of low-cloud feedbacks across climate models is the primary contributor to the spread in their estimates of equilibrium climate sensitivity (ECS). This raises the question: What are the regional implications for key features of tropical climate of globally weak versus strong low-cloud feedbacks in response to greenhouse gas–induced warming? To address this question and formalize our understanding of cloud controls on tropical climate, we perform a suite of idealized fully coupled and slab-ocean climate simulations across which we systematically scale the strength of the low-cloud-cover feedback under abrupt 2 × CO2 forcing within a single model, thereby isolating the impact of low-cloud feedback strength.
Keywords:

[+]

Atmosphere-ocean Interaction Climate Sensitivity Clouds Coupled Models Feedback General Circulation Models
Source:

Journal of Climate, 32(9), 2497–2516
DOI:

https://doi.org/10.1175/JCLI-D-18-0551.1
Document Type:

Journal Article
Funding:

Grant no. NA14OAR4310160
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Submitted
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urn:sha256:b0f58580b7bd9e76fdb0780036d9d99dd6e73ca486b719335c495cf2df590797
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https://repository.library.noaa.gov/view/noaa/36805/noaa_36805_DS1.pdf
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The Strength of Low-Cloud Feedbacks and Tropical Climate: A CESM Sensitivity Study

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