DOI: 10.1002/2017JD026524
论文题名: Changes of snowfall under warming in the Tibetan Plateau
作者: Deng H. ; Pepin N.C. ; Chen Y.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期: 14 起始页码: 7323
结束页码: 7341
语种: 英语
英文关键词: climate change
; mountains
; snowfall
; Tibetan Plateau
英文摘要: Snowfall is a critical part of the hydrological system in high-altitude regions and strongly impacted by climate change. This study uses a threshold temperature method to estimate spatial and temporal variations of snowfall at 71 stations across the Tibetan Plateau from 1960 to 2014. Regional air temperature and precipitation have increased by 0.039°C/yr, and 1.43 mm/yr, respectively. While warming rates have been fairly uniform across the plateau, spatial variations in snowfall trends are large, with decreases in the eastern and northeastern areas but increases at higher elevations in the center and west. Region-wide snowfall increased during 1961–1990 and 1971–2000 but decreased in 1981–2010 and 1991–2014. Wintertime snowfall has increased, but summer snowfall has decreased. These divergent trends can be explained because maximum snowfall is recorded at temperatures between 1 and 2°C. Above/below this threshold snowfall usually decreases/increases with increased warming. Although maximum snowfall temperature is a key factor to understand future snowfall changes, concurrent influences such as changing moisture sources and atmospheric circulation patterns require further research. ©2017. American Geophysical Union. All Rights Reserved. 资助项目: 41630859
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62630
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Department of Geography, University of Portsmouth, Portsmouth, United Kingdom; University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Deng H.,Pepin N.C.,Chen Y.. Changes of snowfall under warming in the Tibetan Plateau[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(14)