气候变化领域集成服务门户(CCPortal): The unusual nature of recent snowpack declines in the North American Cordillera

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DOI	10.1126/science.1201570
	The unusual nature of recent snowpack declines in the North American Cordillera
	Pederson G.T.; Gray S.T.; Woodhouse C.A.; Betancourt J.L.; Fagre D.B.; Littell J.S.; Watson E.; Luckman B.H.; Graumlich L.J.
发表日期	2011
ISSN	0036-8075
起始页码	332
结束页码	335
卷号	333 期号:6040
英文摘要	In western North America, snowpack has declined in recent decades, and further losses are projected through the 21st century. Here, we evaluate the uniqueness of recent declines using snowpack reconstructions from 66 tree-ring chronologies in key runoff-generating areas of the Colorado, Columbia, and Missouri River drainages. Over the past millennium, late 20th century snowpack reductions are almost unprecedented in magnitude across the northern Rocky Mountains and in their north-south synchrony across the cordillera. Both the snowpack declines and their synchrony result from unparalleled springtime warming that is due to positive reinforcement of the anthropogenic warming by decadal variability. The increasing role of warming on large-scale snowpack variability and trends foreshadows fundamental impacts on streamflow and water supplies across the western United States.
英文关键词	snow; climate effect; climate variation; decadal variation; dendrochronology; human activity; paleoclimate; prediction; reconstruction; river basin; runoff; snowpack; streamflow; synchrony; tree ring; trend analysis; twentieth century; twenty first century; warming; water supply; article; greenhouse effect; North America; priority journal; water supply; watershed; Colorado; Columbia [Missouri]; Missouri; Missouri Basin; North American Cordillera; Rocky Mountains; United States
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245025
作者单位	U.S. Geological Survey (USGS), Northern Rocky Mountain Science Center, 2327 University Way, Bozeman, MT 59715, United States; School of Natural Resources, University of Arizona, 325 Biosciences East, Tucson, AZ 85721, United States; Laboratory of Tree-Ring Research, University of Arizona, 105 West Stadium, Tucson, AZ 85721, United States; Department of Civil and Architectural Engineering, University of Wyoming, Laramie, WY 82071, United States; School of Geography and Development, 412 Harvill Building, University of Arizona, Tucson, AZ 85721-0076, United States; USGS, National Research Program, Water Resources Division, Tucson, AZ 85719, United States; Climate Impacts Group, University of Washington, Post Office Box 355672, Seattle, WA 98195-5672, United States; Department of Geography, University of Western Ontario, London, ON N6A 5C2, Canada; College of the Environment, University of Washington, Post Office Box 355679, Seattle, WA 98195-5679, United States
推荐引用方式 GB/T 7714	Pederson G.T.,Gray S.T.,Woodhouse C.A.,et al. The unusual nature of recent snowpack declines in the North American Cordillera[J],2011,333(6040).
APA	Pederson G.T..,Gray S.T..,Woodhouse C.A..,Betancourt J.L..,Fagre D.B..,...&Graumlich L.J..(2011).The unusual nature of recent snowpack declines in the North American Cordillera.Science,333(6040).
MLA	Pederson G.T.,et al."The unusual nature of recent snowpack declines in the North American Cordillera".Science 333.6040(2011).