气候变化领域集成服务门户(CCPortal): A Cloud Top Radiative Cooling Model Coupled With CLUBB in the Community Atmosphere Model: Description and Simulation of Low Clouds

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DOI	10.1029/2018MS001505
	A Cloud Top Radiative Cooling Model Coupled With CLUBB in the Community Atmosphere Model: Description and Simulation of Low Clouds
	Guo Z.; Wang M.; Larson V.E.; Zhou T.
发表日期	2019
ISSN	19422466
起始页码	979
结束页码	997
卷号	11 期号:4
英文摘要	In this study, a higher-order closure scheme known as Cloud Layers Unified By Binormals (CLUBB) is coupled with a cloud top radiative cooling scheme (RAD). The cloud top radiative cooling scheme treats the buoyancy flux generated near the top of the boundary layer which helps the CLUBB scheme to better represent the radiation-turbulence interaction on the condition of coarse vertical resolution. CLUBB with RAD is found to improve subtropical low-cloud simulations, and the improvement is particularly evident for nocturnal stratocumulus. The improvements are caused by the stronger and more symmetric vertical turbulent mixing in the boundary layer, as CLUBB with RAD increases the variance of vertical velocity and vertical turbulent transports and reduces the skewness of vertical velocity by enhancing the radiative cooling effects and buoyancy fluxes at the cloud layer. The pumping effect related to the stronger vertical turbulent transports further cools and dries the lower boundary layer, which increases the local surface heating fluxes and further improves the low-cloud simulations. ©2019. The Authors.
英文关键词	buoyancy flux; cloud top radiative cooling; higher-order closure scheme; low cloud
语种	英语
scopus关键词	Atmospheric thermodynamics; Boundary layers; Buoyancy; Velocity; Buoyancy fluxes; Community atmosphere model; Higher-order; Turbulence interactions; Turbulent mixing; Turbulent transports; Vertical resolution; Vertical velocity; Radiative Cooling; atmospheric modeling; boundary layer; cloud cover; cloud radiative forcing; cooling; simulation; stratocumulus; turbulent mixing
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/156930
作者单位	Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing, China; Department of Mathematical Sciences, University of Wisconsin–Milwaukee, Milwaukee, WI, United States; LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Guo Z.,Wang M.,Larson V.E.,et al. A Cloud Top Radiative Cooling Model Coupled With CLUBB in the Community Atmosphere Model: Description and Simulation of Low Clouds[J],2019,11(4).
APA	Guo Z.,Wang M.,Larson V.E.,&Zhou T..(2019).A Cloud Top Radiative Cooling Model Coupled With CLUBB in the Community Atmosphere Model: Description and Simulation of Low Clouds.Journal of Advances in Modeling Earth Systems,11(4).
MLA	Guo Z.,et al."A Cloud Top Radiative Cooling Model Coupled With CLUBB in the Community Atmosphere Model: Description and Simulation of Low Clouds".Journal of Advances in Modeling Earth Systems 11.4(2019).