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Title: Observational constraints on mixed-phase clouds imply higher climate sensitivity

Journal Article · · Science

Global climate model (GCM) estimates of the equilibrium global mean surface temperature response to a doubling of atmospheric CO2, measured by the equilibrium climate sensitivity (ECS), range from 2.0° to 4.6°C. Clouds are among the leading causes of this uncertainty. Here, in this paper, we show that the ECS can be up to 1.3°C higher in simulations where mixed-phase clouds consisting of ice crystals and supercooled liquid droplets are constrained by global satellite observations. The higher ECS estimates are directly linked to a weakened cloud-phase feedback arising from a decreased cloud glaciation rate in a warmer climate. Finally, we point out the need for realistic representations of the supercooled liquid fraction in mixed-phase clouds in GCMs, given the sensitivity of the ECS to the cloud-phase feedback.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0012580; AC52-07NA27344
OSTI ID:
1355851
Alternate ID(s):
OSTI ID: 1409950
Report Number(s):
LLNL-JRNL-735511; 352/6282/224
Journal Information:
Science, Journal Name: Science Vol. 352 Journal Issue: 6282; ISSN 0036-8075
Publisher:
American Association for the Advancement of Science (AAAS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 271 works
Citation information provided by
Web of Science

References (30)

The Community Earth System Model: A Framework for Collaborative Research journal September 2013
Quantification of the Effects of Shattering on Airborne Ice Particle Measurements journal November 2013
Overview of the CALIPSO Mission and CALIOP Data Processing Algorithms journal November 2009
Microphysical characterization of mixed-phase clouds
  • Korolev, Alexei V.; Isaac, George A.; Cober, Stewart G.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 129, Issue 587 https://doi.org/10.1256/qj.01.204
journal January 2003
Sensitivity Study on the Influence of Cloud Microphysical Parameters on Mixed-Phase Cloud Thermodynamic Phase Partitioning in CAM5 journal February 2016
Combining ERBE and ISCCP data to assess clouds in the Hadley Centre, ECMWF and LMD atmospheric climate models journal September 2001
The importance of feldspar for ice nucleation by mineral dust in mixed-phase clouds journal June 2013
A New Two-Moment Bulk Stratiform Cloud Microphysics Scheme in the Community Atmosphere Model, Version 3 (CAM3). Part I: Description and Numerical Tests journal August 2008
Contributions of Different Cloud Types to Feedbacks and Rapid Adjustments in CMIP5 journal July 2013
Toward a minimal representation of aerosols in climate models: description and evaluation in the Community Atmosphere Model CAM5 journal January 2012
Resilience of persistent Arctic mixed-phase clouds journal December 2011
A Focus On Mixed-Phase Clouds: The Status of Ground-Based Observational Methods journal October 2008
Cloud-radiation feedbacks in a general circulation model and their dependence on cloud modelling assumptions journal April 1992
Ice nucleation by particles immersed in supercooled cloud droplets journal January 2012
Modeling of the Wegener–Bergeron–Findeisen process—implications for aerosol indirect effects journal October 2008
Computing and Partitioning Cloud Feedbacks Using Cloud Property Histograms. Part II: Attribution to Changes in Cloud Amount, Altitude, and Optical Depth journal June 2012
Monte Carlo and quasi-Monte Carlo methods journal January 1998
C02 and climate: a missing feedback? journal September 1989
Spread in model climate sensitivity traced to atmospheric convective mixing journal January 2014
Studies of the radiative properties of ice and mixed-phase clouds journal January 1994
Validation and Sensitivities of Frontal Clouds Simulated by the ECMWF Model journal October 1999
Cloud Adjustment and its Role in CO2 Radiative Forcing and Climate Sensitivity: A Review journal November 2011
Cloudnet: Continuous Evaluation of Cloud Profiles in Seven Operational Models Using Ground-Based Observations journal June 2007
Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles journal January 2015
Sensitivity studies of different aerosol indirect effects in mixed-phase clouds journal January 2009
Importance of the mixed-phase cloud distribution in the control climate for assessing the response of clouds to carbon dioxide increase: a multi-model study journal April 2006
Using the Radiative Kernel Technique to Calculate Climate Feedbacks in NCAR’s Community Atmospheric Model journal May 2008
Mixed phase cloud water/ice structure from high spatial resolution satellite data journal January 2004
Missing iris effect as a possible cause of muted hydrological change and high climate sensitivity in models journal April 2015
Modeling of the Wegener–Bergeron–Findeisen process—implications for aerosol indirect effects journal January 2010

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The social profitability of photovoltaics in Germany journal February 2018
Reducing Uncertainties in Climate Projections with Emergent Constraints: Concepts, Examples and Prospects journal December 2019
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Tropically driven and externally forced patterns of Antarctic sea ice change: reconciling observed and modeled trends journal September 2017
Ice versus liquid water saturation in simulations of the Indian summer monsoon journal February 2018
Processes Responsible for Cloud Feedback journal October 2016
Impacts of Representing Heterogeneous Distribution of Cloud Liquid and Ice on Phase Partitioning of Arctic Mixed‐Phase Clouds with NCAR CAM5 journal December 2019
Characteristics of Ice Clouds Over Mountain Regions Detected by CALIPSO and CloudSat Satellite Observations journal October 2019
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ESD Reviews: Climate feedbacks in the Earth system and prospects for their evaluation journal January 2019
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