气候变化领域集成服务门户(CCPortal): Simulations of Radiative-Convective-Dynamical Equilibrium

CCPortal

DOI	10.1029/2019MS001734
	Simulations of Radiative-Convective-Dynamical Equilibrium
	Warren R.A.; Singh M.S.; Jakob C.
发表日期	2020
ISSN	19422466
卷号	12 期号:3
英文摘要	Small-domain cloud-resolving model and single-column model simulations have historically applied one of three representations of large-scale vertical motion, (Formula presented.). In simulations of radiative-convective equilibrium, (Formula presented.), and a balance develops between convective heating and radiative cooling. Under the weak-temperature gradient approximation and related approaches, (Formula presented.) is diagnosed based on the model's thermodynamic profile. Finally, for real-case simulations, (Formula presented.) may be prescribed as a time-varying field derived from observations. Here, we propose one additional setup, namely, a prescribed but time-invariant vertical motion. In this case, the atmosphere evolves toward an equilibrium state characterized by a three-way balance between radiative and adiabatic cooling and convective heating, with the relative contribution of radiation decreasing with increasing (Formula presented.). We refer to this state as radiative-convective-dynamical equilibrium (RCDE). In this preliminary study we highlight the characteristics of the RCDE state through a suite of simulations performed with a single cloud-resolving model and single-column model. An appealing aspect of these simulations is the wide variety of equilibrium states achieved, ranging from dry and strongly unstable for small (Formula presented.) to approximately moist neutral for large (Formula presented.). This makes RCDE a propitious framework for future model intercomparisons. ©2020. The Authors.
英文关键词	convection; CRM; RCDE; RCE; SCM; tropics
语种	英语
scopus关键词	Earth sciences; Cloud resolving model; Dynamical equilibrium; Radiative-convective equilibrium; Real-case simulations; Relative contribution; Single column model simulations; Thermodynamic profiles; Weak temperature gradient approximations; Radiative Cooling; adiabatic process; atmospheric convection; cooling; heating; observational method; radiative transfer; thermodynamics
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/156746
作者单位	School of Earth, Atmosphere and Environment, Monash University, Clayton, VIC, Australia; ARC Centre of Excellence for Climate Extremes, Monash University, Clayton, VIC, Australia
推荐引用方式 GB/T 7714	Warren R.A.,Singh M.S.,Jakob C.. Simulations of Radiative-Convective-Dynamical Equilibrium[J],2020,12(3).
APA	Warren R.A.,Singh M.S.,&Jakob C..(2020).Simulations of Radiative-Convective-Dynamical Equilibrium.Journal of Advances in Modeling Earth Systems,12(3).
MLA	Warren R.A.,et al."Simulations of Radiative-Convective-Dynamical Equilibrium".Journal of Advances in Modeling Earth Systems 12.3(2020).