气候变化领域集成服务门户(CCPortal): Precursors of quasi-decadal dry-spells in the Central America Dry Corridor

CCPortal

DOI	10.1007/s00382-019-04638-y
	Precursors of quasi-decadal dry-spells in the Central America Dry Corridor
	Hidalgo H.G.; Alfaro E.J.; Amador J.A.; Bastidas Á.
发表日期	2019
ISSN	0930-7575
起始页码	1307
结束页码	1322
卷号	53 期号:2020-03-04
英文摘要	Although the hydric stress in Central America is generally low, there is a region relatively drier and prone to drought known as the Central America Dry Corridor (CADC). The area of interest is located mainly in the Pacific slope of Central America, from Chiapas in southern Mexico, to the Nicoya Peninsula in the Costa Rican North Pacific. Most of the region has experienced significant warming trends (1970–1999). On the contrary precipitation and the Palmer Drought Severity Index (PDSI) have mainly displayed non-significant trends. Analysis using the Standardized Precipitation Index and PDSI in the CADC, suggests a significant periodicity of severe and sustained droughts of around 10 years. The drought response has been associated with tropical heating that drives an atmospheric response through strengthening of the Hadley cell, which in turn produces higher pressure in the subtropical highs, and intensification of the trade winds (indexed by the Caribbean Low Level Jet). It is important to determine the commonness of severe and sustained droughts in the CADC to improve water resources planning, as this is a region that depends on subsistence agriculture and presents high social and economic vulnerabilities. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climate variability; Drought; Hydrology; Oscillation; Quasi-decadal
语种	英语
scopus关键词	climate change; decadal variation; drought; Hadley cell; hydrological response; severe weather; warming; Chiapas; Costa Rica; Mexico [North America]; Nicoya Peninsula; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146088
作者单位	Center for Geophysical Research, University of Costa Rica, San Pedro, 2060, Costa Rica; School of Physics, University of Costa Rica, San Pedro, 2060, Costa Rica; Center for Research in Marine Sciences and Limnology, University of Costa Rica, San Pedro, 2060, Costa Rica; Graduate Program in Atmospheric Sciences, Postgraduate Studies System, University of Costa Rica, San Pedro, 2060, Costa Rica
推荐引用方式 GB/T 7714	Hidalgo H.G.,Alfaro E.J.,Amador J.A.,et al. Precursors of quasi-decadal dry-spells in the Central America Dry Corridor[J],2019,53(2020-03-04).
APA	Hidalgo H.G.,Alfaro E.J.,Amador J.A.,&Bastidas Á..(2019).Precursors of quasi-decadal dry-spells in the Central America Dry Corridor.Climate Dynamics,53(2020-03-04).
MLA	Hidalgo H.G.,et al."Precursors of quasi-decadal dry-spells in the Central America Dry Corridor".Climate Dynamics 53.2020-03-04(2019).