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Cloud properties and their projected changes in CMIP models with low to high climate sensitivity

Bock, Lisa and Lauer, Axel (2024) Cloud properties and their projected changes in CMIP models with low to high climate sensitivity. Atmospheric Chemistry and Physics (ACP), 24, pp. 1587-1605. Copernicus Publications. doi: 10.5194/acp-24-1587-2024. ISSN 1680-7316.

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Official URL: https://acp.copernicus.org/articles/24/1587/2024/

Abstract

Since the release of the first Coupled Model Intercomparison Project version 6 (CMIP6) simulations, one of the most discussed topics is the higher effective climate sensitivity (ECS) of some of the models, resulting in an increased range of ECS values in CMIP6 compared to previous CMIP phases. An important contribution to ECS is the cloud climate feedback. Although climate models have continuously been developed and improved over the last few decades, a realistic representation of clouds remains challenging. Clouds contribute to the large uncertainties in modeled ECS, as projected changes in cloud properties and cloud feedbacks also depend on the simulated present-day fields. In this study, we investigate the representation of both cloud physical and radiative properties from a total of 51 CMIP5 and CMIP6 models. ECS is used as a simple metric to group the models, as the sensitivity of the physical cloud properties to warming is closely related to cloud feedbacks, which in turn are known to have a large contribution to ECS. Projected changes in the cloud properties in future scenario simulations are analyzed by the ECS group. In order to help with interpreting the projected changes, model results from historical simulations are also analyzed.

Item URL in elib:https://elib.dlr.de/202662/
Document Type:Article
Title:Cloud properties and their projected changes in CMIP models with low to high climate sensitivity
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bock, LisaDLR, IPAhttps://orcid.org/0000-0001-7058-5938UNSPECIFIED
Lauer, AxelDLR, IPAhttps://orcid.org/0000-0002-9270-1044UNSPECIFIED
Date:5 February 2024
Journal or Publication Title:Atmospheric Chemistry and Physics (ACP)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:24
DOI:10.5194/acp-24-1587-2024
Page Range:pp. 1587-1605
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:cloud properties, projected changes, CMIP
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Atmospheric and climate research
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Model Evaluation and Analysis
Deposited By: Bock, Lisa
Deposited On:06 Feb 2024 07:38
Last Modified:06 Feb 2024 07:38

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