气候变化领域集成服务门户(CCPortal): Responses of Clouds and Large-Scale Circulation to Global Warming Evaluated From Multidecadal Simulations Using a Global Nonhydrostatic Model

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DOI	10.1029/2019MS001658
	Responses of Clouds and Large-Scale Circulation to Global Warming Evaluated From Multidecadal Simulations Using a Global Nonhydrostatic Model
	Noda A.T.; Kodama C.; Yamada Y.; Satoh M.; Ogura T.; Ohno T.
发表日期	2019
ISSN	19422466
起始页码	2980
结束页码	2995
卷号	11 期号:9
英文摘要	This is the first paper that analyzes data from atmosphere model intercomparison project-type climate simulations using a cloud-system-resolving global nonhydrostatic model without cumulus parameterization focussing particulaly on the relationship between clouds and circulation, and their changes due to global warming. The decrease in fractional coverage of low clouds is key to evaluating cloud radiative effects, because changes in shortwave cloud radiative effects overwhelm those of longwave cloud radiative effects. Thus, improved evaluation of low clouds is important, even in high-resolution climate simulations. An analysis of heat redistribution by explicitly computed clouds revealed that column-integrated heating rate due to phase changes correlates highly with vertical velocity at the altitude corresponding to 500 hPa and is closely linked to column water vapor, similar to the present climate result. Using data from year 1 to year 5, the effective climate sensitivity was evaluated to be 3.6−3.7°C. Possible convective aggregation is also examined using an index of modified subsidence fraction and characteristic changes in the number of cold pools. Despite previous idealized-planet simulations showing more aggregated tropical convection under warmer conditions, here we show a decrease in the subsidence fraction and an increase in the number of smaller cold pools, suggesting that it is possible to realize less convective organization with warming under real atmospheric conditions. ©2019. The Authors.
英文关键词	changes of clouds due to global warming; climate change; convective aggregation; global nonhydrostatic simulation
语种	英语
scopus关键词	Climate change; Global warming; Subsidence; Atmosphere modeling; Atmospheric conditions; Cloud radiative effects; Cumulus parameterization; Large-scale circulation; Multidecadal simulations; Non-hydrostatic; Nonhydrostatic model; Climate models; air-sea interaction; atmospheric modeling; computer simulation; cumulus; global warming; heating; parameterization; radiative forcing; shortwave radiation; water vapor
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156860
作者单位	Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan; National Institute for Environmental Studies, Tsukuba, Japan
推荐引用方式 GB/T 7714	Noda A.T.,Kodama C.,Yamada Y.,et al. Responses of Clouds and Large-Scale Circulation to Global Warming Evaluated From Multidecadal Simulations Using a Global Nonhydrostatic Model[J],2019,11(9).
APA	Noda A.T.,Kodama C.,Yamada Y.,Satoh M.,Ogura T.,&Ohno T..(2019).Responses of Clouds and Large-Scale Circulation to Global Warming Evaluated From Multidecadal Simulations Using a Global Nonhydrostatic Model.Journal of Advances in Modeling Earth Systems,11(9).
MLA	Noda A.T.,et al."Responses of Clouds and Large-Scale Circulation to Global Warming Evaluated From Multidecadal Simulations Using a Global Nonhydrostatic Model".Journal of Advances in Modeling Earth Systems 11.9(2019).