干旱区生态环境知识资源中心(Arid): Upper Gila, Salt, and Verde Rivers: Arid Land Rivers in a Changing Climate

Arid

DOI	10.1175/EI-D-21-0014.1
	Upper Gila, Salt, and Verde Rivers: Arid Land Rivers in a Changing Climate
	Woodhouse, Connie A.; Udall, Bradley
通讯作者	Woodhouse, CA
来源期刊	EARTH INTERACTIONS
EISSN	1087-3562
出版年	2022
卷号	26 期号:1 页码:1-14
英文摘要	The major tributary of the lower Colorado River, the Gila River, is a critical source of water for human and natural environments in the southwestern United States. Warmer and drier than the upper Colorado River basin, with less snow and a bimodal precipitation regime, the Gila River is controlled by a set of climatic conditions that is different from the controls on upper Colorado River flow. Unlike the Colorado River at Lees Ferry in Arizona, the upper Gila River and major Gila River tributaries, the Salt and Verde Rivers, do not yet reflect significant declines in annual streamflow, despite warming trends. Annual streamflow is dominated by cool-season precipitation, but the monsoon influence is discernable as well, variable across the basin and complicated by an inverse relationship with cool-season precipitation in the Salt and Verde River basins. Major multiyear streamflow droughts in these two basins have frequently been accompanied by wet monsoons, suggesting that monsoon precipitation may partially offset the impacts of a dry cool season. While statistically significant trends in annual streamflow are not evident, decreases in autumn and spring streamflow reflect warming temperatures and some decreases in spring precipitation. Because climatic controls vary with topography and the influence of the monsoon, the impact of warming on streamflow in the three subbasins is somewhat variable. However, given relationships between climate and streamflow, current trends in hydroclimate, and projections for the future, it would be prudent to expect declines in Gila River water supplies in the coming decades. Significance StatementThis research investigates the climatic controls on the Gila River and its major tributaries, the Verde and Salt Rivers, to gain insights on how trends in climate may impact future water supply. The Gila River is the major tributary of the lower Colorado River, but, unlike the situation for the upper Colorado River, no significant decreasing trends in annual streamflow are evident despite warming temperatures. Climate-streamflow relationships are more complex in this part of the Colorado River basin, and several factors may be buffering streamflow to the impact of warming. However, given the key climatic controls on streamflow, current and emerging trends in climate, and projections for the future, declines in streamflow should be expected in the future.
英文关键词	Watersheds Streamflow Drought Climate change Climate variability
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000860481500001
WOS关键词	NORTH-AMERICAN MONSOON ; PRECIPITATION ; TEMPERATURE ; SNOW ; VARIABILITY ; PATTERNS ; DROUGHT ; TRENDS ; FLOW
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392263
推荐引用方式 GB/T 7714	Woodhouse, Connie A.,Udall, Bradley. Upper Gila, Salt, and Verde Rivers: Arid Land Rivers in a Changing Climate[J],2022,26(1):1-14.
APA	Woodhouse, Connie A.,&Udall, Bradley.(2022).Upper Gila, Salt, and Verde Rivers: Arid Land Rivers in a Changing Climate.EARTH INTERACTIONS,26(1),1-14.
MLA	Woodhouse, Connie A.,et al."Upper Gila, Salt, and Verde Rivers: Arid Land Rivers in a Changing Climate".EARTH INTERACTIONS 26.1(2022):1-14.