气候变化领域集成服务门户(CCPortal): Fine Vertical Resolution Radiative-Convective Equilibrium Experiments: Roles of Turbulent Mixing on the High-Cloud Response to Sea Surface Temperatures

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DOI	10.1029/2019MS001704
	Fine Vertical Resolution Radiative-Convective Equilibrium Experiments: Roles of Turbulent Mixing on the High-Cloud Response to Sea Surface Temperatures
	Ohno T.; Satoh M.; Noda A.
发表日期	2019
ISSN	19422466
起始页码	1637
结束页码	1654
卷号	11 期号:6
英文摘要	In this study, the vertical resolution dependency of the high-cloud fraction response on the increase in sea surface temperature was investigated via radiative-convective equilibrium simulations. We performed radiative-convective equilibrium simulations for configurations with a wide range of vertical resolutions using a global nonhydrostatic model including explicit cloud microphysics. It was found that the high-cloud cover almost monotonically decreased as the vertical resolution increased. We also found that the high-cloud cover increased (decreased) as the sea surface temperature increased for higher (lower) vertical resolutions. Budget analyses of ice water condensate in transition states to equilibria were performed using the binned vertical profile method and revealed that the tendencies due to the turbulent mixing near convective cores were strongly dependent on the vertical resolution. Analyses of turbulent diffusivity profiles showed that the diffusivity tended to decrease as the vertical resolution increased. The vertical resolution dependency of turbulent mixing was related to frequently occurring weak stratification near the convective cores. We verified these findings via sensitivity experiments and determined that the contribution of the vertical resolution dependency of other processes was secondary. As substantial variability in vertical diffusivity has been reported in both models and observations, these results suggest that a more thorough understanding of turbulent mixing is needed to comprehend high-cloud changes in warming climates better. ©2019. The Authors.
英文关键词	climate sensitivity; global cloud-resolving model; high-cloud response; radiative-convective equilibrium
语种	英语
scopus关键词	Atmospheric temperature; Budget control; Climate models; Diffusion; Oceanography; Shock tubes; Submarine geophysics; Surface properties; Surface waters; Turbulent flow; Climate sensitivity; Global cloud resolving model; high-cloud response; Nonhydrostatic model; Radiative-convective equilibrium; Sea surface temperature (SST); Turbulent diffusivities; Vertical diffusivity; Mixing; air-sea interaction; atmospheric convection; cloud cover; cloud microphysics; experimental design; sea surface temperature; stratiform cloud; turbulent mixing; vertical profile
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/156897
作者单位	Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan
推荐引用方式 GB/T 7714	Ohno T.,Satoh M.,Noda A.. Fine Vertical Resolution Radiative-Convective Equilibrium Experiments: Roles of Turbulent Mixing on the High-Cloud Response to Sea Surface Temperatures[J],2019,11(6).
APA	Ohno T.,Satoh M.,&Noda A..(2019).Fine Vertical Resolution Radiative-Convective Equilibrium Experiments: Roles of Turbulent Mixing on the High-Cloud Response to Sea Surface Temperatures.Journal of Advances in Modeling Earth Systems,11(6).
MLA	Ohno T.,et al."Fine Vertical Resolution Radiative-Convective Equilibrium Experiments: Roles of Turbulent Mixing on the High-Cloud Response to Sea Surface Temperatures".Journal of Advances in Modeling Earth Systems 11.6(2019).