气候变化领域集成服务门户(CCPortal): How Tropical Convection Couples High Moist Static Energy Over Land and Ocean

CCPortal

DOI	10.1029/2019GL086387
	How Tropical Convection Couples High Moist Static Energy Over Land and Ocean
	Zhang Y.; Fueglistaler S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:2
英文摘要	We show that in the tropics, tropical atmospheric dynamics force the subcloud moist static energy (MSE) over land and ocean to be very similar in, and only in, regions of deep convection. Using observed rainfall as a proxy for convection and reanalysis data to calculate MSE, we show that subcloud MSE in the nonconvective regions may differ substantially between land and ocean but is uniform across latitudes in convective regions even on a daily timescale. This result holds also in CMIP5 model simulations of past cold and future warm climates. Furthermore, the distribution of rainfall amount in subcloud MSE is very similar over land and ocean with the peak at 343 J/g and a half width at half maximum of 3 J/g. Our results demonstrate that the horizontally uniform free tropospheric temperature forces the highest subcloud MSE values to be similar over land and ocean. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climate models; Rain; Tropical engineering; Tropics; Deep convection; Half width at half maximums; Model simulation; Moist static energy; Quasi equilibrium; Tropical atmospheric dynamics; Tropical convection; Tropospheric temperature; Oceanography; atmospheric convection; climate modeling; CMIP; energy flux; land-sea interaction; latitude; statistical analysis; temperature gradient; timescale; tropical environment; troposphere
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170831
作者单位	Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; Department of Geosciences, Princeton University, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Zhang Y.,Fueglistaler S.. How Tropical Convection Couples High Moist Static Energy Over Land and Ocean[J],2020,47(2).
APA	Zhang Y.,&Fueglistaler S..(2020).How Tropical Convection Couples High Moist Static Energy Over Land and Ocean.Geophysical Research Letters,47(2).
MLA	Zhang Y.,et al."How Tropical Convection Couples High Moist Static Energy Over Land and Ocean".Geophysical Research Letters 47.2(2020).