干旱区生态环境知识资源中心(Arid): Dynamics and Variability of the Spring Dry Season in the United States Southwest as Observed in AmeriFlux and NLDAS-2 Data

Arid

DOI	10.1175/JHM-D-18-0154.1
	Dynamics and Variability of the Spring Dry Season in the United States Southwest as Observed in AmeriFlux and NLDAS-2 Data
	Pascolini-Campbell, Madeleine 1,5; Seager, Richard 2; Williams, A. Park 2; Cook, Benjamin I.3; Pinson, Ariane O.4
通讯作者	Pascolini-Campbell, Madeleine
来源期刊	JOURNAL OF HYDROMETEOROLOGY
ISSN	1525-755X
EISSN	1525-7541
出版年	2019
卷号	20 期号:6 页码:1081-1102
英文摘要	The spring dry season occurring in an arid region of the southwestern United States, which receives both winter storm track and summer monsoon precipitation, is investigated. Bimodal precipitation and vegetation growth provide an opportunity to assess multiple climate mechanisms and their impact on hydroclimate and ecosystems. We detect multiple shifts from wet to drier conditions in the observational record and land surface model output. Focusing on the recent dry period, a shift in the late 1990s resulted in earlier and greater spring soil moisture draw down, and later and reduced spring vegetation green-up, compared to a prior wet period (1979-97). A simple soil moisture balance model shows this shift is driven by changes in winter precipitation. The recent post-1999 dry period and an earlier one from 1948 to 1966 are both related to the cool tropics phase of Pacific decadal variability, which influences winter precipitation. In agreement with other studies for the southwestern United States, we find the recent drought cannot be explained in terms of precipitation alone, but also is due to the rising influence of temperature, thus highlighting the sensitivity of this region to warming temperatures. Future changes in the spring dry season will therefore be affected by how tropical decadal variability evolves, and also by emerging trends due to human-driven warming.
英文关键词	North America Climate records Land surface model Climate variability Spring season Ecosystem effects
类型	Article
语种	英语
国家	USA
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000469447300003
WOS关键词	NORTH-AMERICAN-MONSOON ; CARBON-DIOXIDE ; CLIMATE-CHANGE ; PRECIPITATION ; WILDFIRE ; TEMPERATURE ; VEGETATION ; PACIFIC ; OSCILLATION ; PATTERNS
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/2XILL650/217189
作者单位	1.Columbia Univ, New York, NY 10027 USA; 2.Lamont Doherty Earth Observ, Palisades, NY USA; 3.NASA, Goddard Inst Space Studies, New York, NY 10025 USA; 4.US Army Corps Engineers, Albuquerque, NM USA; 5.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91125 USA
推荐引用方式 GB/T 7714	Pascolini-Campbell, Madeleine,Seager, Richard,Williams, A. Park,et al. Dynamics and Variability of the Spring Dry Season in the United States Southwest as Observed in AmeriFlux and NLDAS-2 Data[J],2019,20(6):1081-1102.
APA	Pascolini-Campbell, Madeleine,Seager, Richard,Williams, A. Park,Cook, Benjamin I.,&Pinson, Ariane O..(2019).Dynamics and Variability of the Spring Dry Season in the United States Southwest as Observed in AmeriFlux and NLDAS-2 Data.JOURNAL OF HYDROMETEOROLOGY,20(6),1081-1102.
MLA	Pascolini-Campbell, Madeleine,et al."Dynamics and Variability of the Spring Dry Season in the United States Southwest as Observed in AmeriFlux and NLDAS-2 Data".JOURNAL OF HYDROMETEOROLOGY 20.6(2019):1081-1102.