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Ongoing Breakthroughs in Convective ParameterizationWhile the increase of computer power mobilizes a part of the community towards models with explicit convection or based on machine learning, we review the part of the literature dedicated to convective parameterization development for large-scale forecast and climate models. Recent findings: Many developments are underway to overcome endemic limitations of traditional convective parameterizations, either in unified or multi-object frameworks: scale-aware and stochastic approaches, new prognostic equations or representations of new components such as cold pools. Understanding their impact on the emergent properties of a model remains challenging, due to subsequent tuning of parameters and the limited understanding given by traditional metrics. Summary: Further effort still needs to be dedicated to the representation of the life cycle of convective systems, in particular their mesoscale organization and associated cloud cover. The development of more process-oriented metrics based on new observations is also needed to help quantify model improvement and better understand the mechanisms of climate change.
Document ID
20190025767
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Rio, C.
(Universite de Toulouse, Meteo-France, CNRS, Toulouse, France)
Del Genio, Anthony
(NASA Goddard Inst. for Space Studies New York, NY, United States)
Date Acquired
June 7, 2019
Publication Date
April 29, 2019
Publication Information
Publication: Current Climate Change Reports
Publisher: Springer
Volume: 5
Issue: 2
Subject Category
Meteorology And Climatology
Report/Patent Number
GSFC-E-DAA-TN68302
Report Number: GSFC-E-DAA-TN68302
Funding Number(s)
WBS: 967701.02.01.02.30
Distribution Limits
Public
Copyright
Other
Keywords
parameterizations for large-scale models
mesoscale circulation
cold pools
convective memory
stochastic approaches
process-oriented metrics

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