气候变化领域集成服务门户(CCPortal): Observed Warm-Season Characteristics of MCS and Non-MCS Rainfall and Their Recent Changes in the Central United States

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DOI	10.1029/2019GL086783
	Observed Warm-Season Characteristics of MCS and Non-MCS Rainfall and Their Recent Changes in the Central United States
	Hu H.; Leung L.R.; Feng Z.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:6
英文摘要	Warm-season rainfall characteristics in the central United States are investigated as they play important roles in ecohydrology and agricultural productivity. Using rainfall observations, we compare the April–August mesoscale convective systems (MCS) and non-MCS rainfall characteristics and examine their linear trends between 1997 and 2018. MCS rainfall is found to be approximately seven times more intense than non-MCS rainfall but it occurs less frequently in time and space. MCS rainfall peaks in nocturnal hours, with synchronized timing of rainfall intensity, area, and occurrence, while non-MCS rainfall peaks in late-afternoon hours, mostly attributed to the timing of peak rainfall area. MCS rainfall has increased in the last 22 years due to an increase in frequency and a longer duration per MCS. In contrast, non-MCS rainfall has decreased mainly due to a reduction in rainfall area, leading to fewer total wet days and increased dry intervals between events. Published 2020. This article is a U.S. Government work and is in the public domain in the USA.
英文关键词	Agricultural robots; Productivity; Storms; Agricultural productivity; Eco-hydrology; Linear trends; Mesoscale Convective System; Public domains; Rainfall characteristics; Rainfall intensity; Warm season rainfall; Rain; ecohydrology; precipitation intensity; rainfall; seasonal variation; United States
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/170529
作者单位	Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States
推荐引用方式 GB/T 7714	Hu H.,Leung L.R.,Feng Z.. Observed Warm-Season Characteristics of MCS and Non-MCS Rainfall and Their Recent Changes in the Central United States[J],2020,47(6).
APA	Hu H.,Leung L.R.,&Feng Z..(2020).Observed Warm-Season Characteristics of MCS and Non-MCS Rainfall and Their Recent Changes in the Central United States.Geophysical Research Letters,47(6).
MLA	Hu H.,et al."Observed Warm-Season Characteristics of MCS and Non-MCS Rainfall and Their Recent Changes in the Central United States".Geophysical Research Letters 47.6(2020).