干旱区生态环境知识资源中心(Arid): Precipitation-temperature variability and drought episodes in northwest Baja California, Mexico

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DOI	10.1016/j.ejrh.2019.100653
	Precipitation-temperature variability and drought episodes in northwest Baja California, Mexico
	Jose Del-Toro-Guerrero, Francisco; Kretzschmar, Thomas
通讯作者	Jose Del-Toro-Guerrero, Francisco
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2020
卷号	27
英文摘要	Study region: The semi-arid wine region of Guadalupe Valley located in NW Baja California, Mexico. Study focus: Recently, recurrent dry years have diminishing groundwater resources threatening agricultural activities and the well-being population in the northwest of Baja California. The climate variability through changes in precipitation and temperature might further the present situation. This study presents the observed long-term (1979-2016) hydro-climatic and temperature trends, extreme events, and drought periods in the Guadalupe Valley for its economic and social relevance in the region. New hydrological insights for the region: The results revealed the annual/seasonal precipitation rate reduction (from -110 to -172 mm) and an increase in mean annual/seasonal temperature (from 0.76 to 1.82 degrees C). We detected an abrupt downward change in annual precipitation in 1998, and a continuous period of reduction in precipitation rate from 1999 to 2016 (at least 17 years). Also, we detected an upward change in maximum temperature at 90, 95, 99th percentiles, and an increase in dry seasonal/annual periods after 1998. We linked the length of the meteorological drought to precipitation rate downward and drought severity to years with the lowest annual precipitation. The decrease of precipitation and increase in temperature have had negative impacts on groundwater availability that have affected agriculture and population. Hence specific adaptation strategies are necessary to mitigate regional hydrological impacts.
英文关键词	Guadalupe Valley BC Homogeneity analysis Mann-Kendall Overexploited aquifer Reconnaissance Drought Index Semi-arid wine region Sen's slope
类型	Article
语种	英语
国家	Mexico
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000517593300009
WOS关键词	LONG-TERM TRENDS ; GUADALUPE VALLEY ; MANN-KENDALL ; RIVER-BASIN ; CLIMATE ; INDEX ; AQUIFER ; TESTS ; IRAN
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315010
作者单位	CICESE, Dept Geol, Ensenada 22860, Baja California, Mexico
推荐引用方式 GB/T 7714	Jose Del-Toro-Guerrero, Francisco,Kretzschmar, Thomas. Precipitation-temperature variability and drought episodes in northwest Baja California, Mexico[J],2020,27.
APA	Jose Del-Toro-Guerrero, Francisco,&Kretzschmar, Thomas.(2020).Precipitation-temperature variability and drought episodes in northwest Baja California, Mexico.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,27.
MLA	Jose Del-Toro-Guerrero, Francisco,et al."Precipitation-temperature variability and drought episodes in northwest Baja California, Mexico".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 27(2020).