干旱区生态环境知识资源中心(Arid): Navajo Nation, USA, Precipitation Variability from 2002 to 2015

Arid

DOI	10.1111/j.1936-704X.2018.03273.x
	Navajo Nation, USA, Precipitation Variability from 2002 to 2015
	Tulley-Cordova, Crystal L.; Strong, Courtenay; Brady, Irving P.; Bekis, Jerome; Bowen, Gabriel J.
通讯作者	Tulley-Cordova, CL
来源期刊	JOURNAL OF CONTEMPORARY WATER RESEARCH & EDUCATION
ISSN	1936-7031
EISSN	1936-704X
出版年	2018
卷号	163 期号:1 页码:109-123
英文摘要	Due to its semi-arid climate, the Navajo Nation, situated in the southwestern United States, is sensitive to small changes in precipitation. However, little information on patterns and causes of rainfall variation is available for this sparsely populated region. In order to study stability and variability over time, this study characterized hydroclimatic changes for the Navajo Nation over timescales of months to years based on data from 90 sites from 2002 to 2015. This research will help local water managers identify related precipitation areas within the region, compare Navajo Nation precipitation with climate indices to ascertain larger-scale atmospheric contributors to precipitation in the Four Corners region, and support future water planning in this understudied region. A vector quantization method, called k-means clustering, identified five sub-regions of contrasting precipitation climatology. The regions differed in the timing, magnitude, and relative importance of the winter and summer peaks comprising the bimodal precipitation regime of the area. Correlation examination of spatial and temporal trends of precipitation variability with three climate indices revealed strong winter precipitation relationships to the Pacific North American teleconnection pattern for all regions; summer precipitation teleconnections were weaker and more variable; however, modest correlations with Pacific Decadal Oscillation were observed. Climate field analysis indicates that cold-season precipitation is enhanced by intensification of the Aleutian Low with a storm trajectory into the southwest United States; warm season precipitation is enhanced by poleward shift of the North American monsoon ridge.
英文关键词	Four Corners region southwestern U.S. climate hydrometeorological network
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000433580700008
WOS关键词	CLIMATE-CHANGE ; AMERICAN ; PATTERN
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/2XILL650/332803
作者单位	[Tulley-Cordova, Crystal L.; Bowen, Gabriel J.] Univ Utah, Dept Geol & Geophys, 115 S 1460 E, Salt Lake City, UT 84112 USA; [Strong, Courtenay] Univ Utah, Dept Atmospher Sci, 135 S 1460 E, Salt Lake City, UT 84112 USA; [Brady, Irving P.; Bekis, Jerome] Navajo Nation Water Management Branch, POB 678, Ft Defiance, AZ 86504 USA; [Bekis, Jerome] POB B-14, Tsaile, AZ 86556 USA
推荐引用方式 GB/T 7714	Tulley-Cordova, Crystal L.,Strong, Courtenay,Brady, Irving P.,et al. Navajo Nation, USA, Precipitation Variability from 2002 to 2015[J],2018,163(1):109-123.
APA	Tulley-Cordova, Crystal L.,Strong, Courtenay,Brady, Irving P.,Bekis, Jerome,&Bowen, Gabriel J..(2018).Navajo Nation, USA, Precipitation Variability from 2002 to 2015.JOURNAL OF CONTEMPORARY WATER RESEARCH & EDUCATION,163(1),109-123.
MLA	Tulley-Cordova, Crystal L.,et al."Navajo Nation, USA, Precipitation Variability from 2002 to 2015".JOURNAL OF CONTEMPORARY WATER RESEARCH & EDUCATION 163.1(2018):109-123.