气候变化领域集成服务门户(CCPortal): Identifying meteorological influences on marine low-cloud mesoscale morphology using satellite classifications

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DOI	10.5194/acp-21-9629-2021
	Identifying meteorological influences on marine low-cloud mesoscale morphology using satellite classifications
	Mohrmann J.; Wood R.; Yuan T.; Song H.; Eastman R.; Oreopoulos L.
发表日期	2021
ISSN	1680-7316
起始页码	9629
结束页码	9642
卷号	21 期号:12
英文摘要	Marine low-cloud mesoscale morphology in the southeastern Pacific Ocean is analyzed using a large dataset of classifications spanning 3 years generated by machine learning methods. Meteorological variables and cloud properties are composited by the mesoscale cloud type of the classification, showing distinct meteorological regimes of marine low-cloud organization from the tropics to the midlatitudes. The presentation of mesoscale cellular convection, with respect to geographic distribution, boundary layer structure, and large-scale environmental conditions, agrees with prior knowledge. Two tropical and subtropical cumuliform boundary layer regimes, suppressed cumulus and clustered cumulus, are studied in detail. The patterns in precipitation, circulation, column water vapor, and cloudiness are consistent with the representation of marine shallow mesoscale convective self-aggregation by large eddy simulations of the boundary layer. Although they occur under similar large-scale conditions, the suppressed and clustered low-cloud types are found to be well separated by variables associated with low-level mesoscale circulation, with surface wind divergence being the clearest discriminator between them, regardless of whether reanalysis or satellite observations are used. Clustered regimes are associated with surface convergence, while suppressed regimes are associated with surface divergence. © Author(s) 2021.
语种	英语
scopus关键词	atmospheric convection; boundary layer; cloud classification; data set; machine learning; marine atmosphere; mesoscale meteorology; satellite imagery; Pacific Ocean; Pacific Ocean (Southeast)
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246782
作者单位	Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Earth Science Division, NASA Goddard Space Flight Center, Goddard, MD, United States; Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Baltimore, MD, United States; Science Systems and Application Inc., Lanham, MD, United States
推荐引用方式 GB/T 7714	Mohrmann J.,Wood R.,Yuan T.,et al. Identifying meteorological influences on marine low-cloud mesoscale morphology using satellite classifications[J],2021,21(12).
APA	Mohrmann J.,Wood R.,Yuan T.,Song H.,Eastman R.,&Oreopoulos L..(2021).Identifying meteorological influences on marine low-cloud mesoscale morphology using satellite classifications.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(12).
MLA	Mohrmann J.,et al."Identifying meteorological influences on marine low-cloud mesoscale morphology using satellite classifications".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.12(2021).