气候变化领域集成服务门户(CCPortal): A New Look at the Daily Cycle of Trade Wind Cumuli

CCPortal

DOI	10.1029/2019MS001746
	A New Look at the Daily Cycle of Trade Wind Cumuli
	Vial J.; Vogel R.; Bony S.; Stevens B.; Winker D.M.; Cai X.; Hohenegger C.; Naumann A.K.; Brogniez H.
发表日期	2019
ISSN	19422466
起始页码	3148
结束页码	3166
卷号	11 期号:10
英文摘要	A description of the daily cycle of oceanic shallow cumulus for undisturbed boreal winter conditions in the North Atlantic trades is presented. Modern investigation tools are used, including storm-resolving and large-eddy simulations, runover large domains in realistic configurations, and observations from in situ measurements and satellite-based retrievals. Models and observations clearly show pronounced diurnal variations in cloudiness, both near cloud base and below the trade inversion. The daily cycle reflects the evolution of two cloud populations: (i) a population of nonprecipitating small cumuli with weak vertical extent, which grows during the day and maximizes around sunset, and (ii) a population o deeper precipitating clouds with a stratiform cloud layer below the trade inversion, which grows during the night and maximizes just before sunrise. Previous studies have reported that cloudiness near cloud base undergoes weak variations on time scales longer than a day. However, here we find that it can vary strongly at the diurnal time scale. This daily cycle could serve as a critical test of the models' representation of the physical processes controlling cloudiness near cloud base, which is thought to be key for the determination of the Earth's climate response to warming. ©2019. The Authors.
英文关键词	daily cycle; diurnal time scale; high-resolution models; observations; shallow clouds; trade wind cumuli
语种	英语
scopus关键词	Climate models; Commerce; Large eddy simulation; Time measurement; daily cycle; High-resolution models; observations; Shallow clouds; Time-scales; Trade-wind cumulus; Clouds; cloud cover; cumulus; in situ measurement; large eddy simulation; stratiform cloud; timescale; trade wind; Atlantic Ocean; Atlantic Ocean (North)
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/156853
作者单位	Max-Planck-Institut für Meteorologie, Hamburg, Germany; Laboratoire de Météorologie Dynamique, Universite Pierre et Marie Curie (UPMC), Paris, France; NASA Langley Research Center, Hampton, VA, United States; Science Systems and Applications, Inc., Hampton, VA, United States; Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris, France
推荐引用方式 GB/T 7714	Vial J.,Vogel R.,Bony S.,et al. A New Look at the Daily Cycle of Trade Wind Cumuli[J],2019,11(10).
APA	Vial J..,Vogel R..,Bony S..,Stevens B..,Winker D.M..,...&Brogniez H..(2019).A New Look at the Daily Cycle of Trade Wind Cumuli.Journal of Advances in Modeling Earth Systems,11(10).
MLA	Vial J.,et al."A New Look at the Daily Cycle of Trade Wind Cumuli".Journal of Advances in Modeling Earth Systems 11.10(2019).