气候变化领域集成服务门户(CCPortal): A Satellite-Based Estimate of Convective Vertical Velocity and Convective Mass Flux: Global Survey and Comparison With Radar Wind Profiler Observations

CCPortal

DOI	10.1029/2020GL090675
	A Satellite-Based Estimate of Convective Vertical Velocity and Convective Mass Flux: Global Survey and Comparison With Radar Wind Profiler Observations
	Jeyaratnam J.; Luo Z.J.; Giangrande S.E.; Wang D.; Masunaga H.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:1
英文摘要	Convective vertical velocity (wc) and convective mass flux (Mc) lie at the heart of global climate model cumulus parameterizations, but few observations of these critical parameters are available. This paper develops and evaluates a novel, satellite-based method for estimating profiles of wc and Mc. Comparisons with collocated ground-based radar wind profiler (RWP) observations show that satellite-estimated median wc is slightly greater than the RWP estimates, but they show solid agreement when compared at the 95th percentiles (intense updrafts). RWP-derived and satellite-estimated Mc are broadly comparable in the lower and middle troposphere, with some differences in the upper troposphere due to differences in convective core sampling. A k-means cluster analysis of multiple years of wc data shows that convective characteristics are distinctly different among extratropical convection, tropical land convection, and tropical oceanic convection. Tropical land convection is significantly more intense and more variable than the oceanic counterpart. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climate models; Cluster analysis; K-means clustering; Satellites; Surveys; Tropics; Troposphere; Velocity; Convective mass flux; Global climate model; Ground based radar; Radar wind profilers; Tropical lands; Tropical oceanic convection; Upper troposphere; Vertical velocity; Space-based radar
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/169277
作者单位	The Graduate Center, Earth and Environmental Sciences Program, City University of New York, New York, NY, United States; Department of Earth and Atmospheric Sciences, City University of New York, City College, New York, NY, United States; Department of Environmental and Climate Sciences, Brookhaven National Laboratory, Upton, NY, United States; Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
推荐引用方式 GB/T 7714	Jeyaratnam J.,Luo Z.J.,Giangrande S.E.,et al. A Satellite-Based Estimate of Convective Vertical Velocity and Convective Mass Flux: Global Survey and Comparison With Radar Wind Profiler Observations[J],2021,48(1).
APA	Jeyaratnam J.,Luo Z.J.,Giangrande S.E.,Wang D.,&Masunaga H..(2021).A Satellite-Based Estimate of Convective Vertical Velocity and Convective Mass Flux: Global Survey and Comparison With Radar Wind Profiler Observations.Geophysical Research Letters,48(1).
MLA	Jeyaratnam J.,et al."A Satellite-Based Estimate of Convective Vertical Velocity and Convective Mass Flux: Global Survey and Comparison With Radar Wind Profiler Observations".Geophysical Research Letters 48.1(2021).