globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-12-00534.1
Scopus记录号: 2-s2.0-84880263802
论文题名:
The uneven response of different snow measures to human-induced climate warming
作者: Pierce D.W.; Cayan D.R.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期:12
起始页码: 4148
结束页码: 4167
语种: 英语
Scopus关键词: Climate sensitivity ; Climate warming ; Global climate model ; Linear trends ; Natural variability ; Snow covers ; Western United States ; Winter precipitation ; Climate change ; Snow ; climate change ; climate modeling ; global climate ; precipitation (climatology) ; snow cover ; snowpack ; time series ; water content ; United States
英文摘要: The effect of human-induced climate warming on different snow measures in the western United States is compared by calculating the time required to achieve a statistically significant linear trend in the different measures, using time series derived from regionally downscaled global climate models. The measures examined include the water content of the spring snowpack, total cold-season snowfall, fraction of winter precipitation that falls as snow, length of the snow season, and fraction of cold-season precipitation retained in the spring snowpack, as well as temperature and precipitation. Various stakeholders may be interested in different sets of these variables. It is found that temperature and the fraction of winter precipitation that falls as snow exhibit significant trends first, followed in 5-10 years by the fraction of cold-season precipitation retained in the spring snowpack, and later still by the water content of the spring snowpack. Change in total cold-season snowfall is least detectable of all the measures, since it is strongly linked to precipitation, which has large natural variability and only a weak anthropogenic trend in the western United States. Averaging over increasingly wider areas monotonically increases the signal-to-noise ratio of the 1950-2025 linear trendfrom 0.15 to 0.37, depending on the snow measure. © 2013 American Meteorological Society.
资助项目: CEC, California Energy Commission
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51849
Appears in Collections:气候变化事实与影响

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作者单位: Division of Climate, Atmospheric Sciences, and Physical Oceanography, Scripps Institution of Oceanography, La Jolla, CA, United States; U.S. Geological Survey, La Jolla, CA, United States

Recommended Citation:
Pierce D.W.,Cayan D.R.. The uneven response of different snow measures to human-induced climate warming[J]. Journal of Climate,2013-01-01,26(12)
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