干旱区生态环境知识资源中心(Arid): Synoptic-to-Regional-Scale Analysis of Rainfall in the Atacama Desert (18 degrees-26 degrees S) Using a Long-Term Simulation with WRF

Arid

DOI	10.1175/MWR-D-20-0038.1
	Synoptic-to-Regional-Scale Analysis of Rainfall in the Atacama Desert (18 degrees-26 degrees S) Using a Long-Term Simulation with WRF
	Reyers, Mark; Boehm, Christoph; Knarr, Leon; Shao, Yaping; Crewell, Susanne
通讯作者	Reyers, M (corresponding author), Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany.
来源期刊	MONTHLY WEATHER REVIEW
ISSN	0027-0644
EISSN	1520-0493
出版年	2021
卷号	149 期号:1 页码:91-112
英文摘要	In this study, reanalysis data and a long-term simulation with the regional climate model WRF (1982-2017; 10 km resolution) is used to analyze synoptic and regional processes associated with rainfall events in the Atacama Desert. Five composites, each with 10 WRF-simulated rainfall events, are studied. They are selected based on a clustering and comprise the top winter events in SouthAtacama (23 degrees-26 degrees S), SoutheastAtacama, and North Atacama (18 degrees-23 degrees S), and the top summer events in North Atacama and Northeast Atacama. Winter rainfall events in South Atacama are mostly associated with strong low pressure systems over the southeast Pacific and atmospheric rivers at their foreside, while cutoff lows occurring anomalously far north facilitate strong rainfall inNorthAtacama. Accordingly, tropical continental areas and the remote tropical and subtropical Pacific are identified as primarymoisture sources, and moisture transport toward theAtacamaDesertmainly takes place in the free troposphere (above 800 hPa). Strong summer rainfall events in North Atacama and Northeast Atacama are associated with a southward displaced Bolivian high. During rainfall events in North Atacama the high is shifted westward when compared to the Northeast Atacama events. Consequently, northern Chile is located at the northern periphery of the Bolivian high and the resulting strong easterlies may push strong convective systems from the Altiplano, toward the Atacama coast. Detailed analyses of individual rainfall events reveal that the most important synoptic patterns associated with rainfall not only control the synoptic-scale moisture transport into the Atacama Desert, but also decisively influence the regional atmospheric circulation.
英文关键词	Atmosphere South America
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000656685300006
WOS关键词	ATMOSPHERIC RIVERS ; CENTRAL CHILE ; WINTER STORM ; PRECIPITATION ; VARIABILITY ; EVENTS ; IMPACT ; COAST
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351172
作者单位	[Reyers, Mark; Boehm, Christoph; Knarr, Leon; Shao, Yaping; Crewell, Susanne] Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany
推荐引用方式 GB/T 7714	Reyers, Mark,Boehm, Christoph,Knarr, Leon,et al. Synoptic-to-Regional-Scale Analysis of Rainfall in the Atacama Desert (18 degrees-26 degrees S) Using a Long-Term Simulation with WRF[J],2021,149(1):91-112.
APA	Reyers, Mark,Boehm, Christoph,Knarr, Leon,Shao, Yaping,&Crewell, Susanne.(2021).Synoptic-to-Regional-Scale Analysis of Rainfall in the Atacama Desert (18 degrees-26 degrees S) Using a Long-Term Simulation with WRF.MONTHLY WEATHER REVIEW,149(1),91-112.
MLA	Reyers, Mark,et al."Synoptic-to-Regional-Scale Analysis of Rainfall in the Atacama Desert (18 degrees-26 degrees S) Using a Long-Term Simulation with WRF".MONTHLY WEATHER REVIEW 149.1(2021):91-112.