DOI: 10.1175/JCLI-D-15-0732.1
Scopus记录号: 2-s2.0-85012241763
论文题名: Spatial-temporal variability of snow cover and depth in the Qinghai-Tibetan plateau
作者: Xu W. ; Ma L. ; Ma M. ; Zhang H. ; Yuan W.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 4 起始页码: 1521
结束页码: 1533
语种: 英语
Scopus关键词: Climate change
; Snow melting systems
; In-situ observations
; Meteorological station
; Qinghai-Tibetan plateau
; Rising temperatures
; Snow covers
; Snowmelt
; Spatial and temporal variability
; Spatial temporals
; Snow
; climate change
; depth
; high temperature
; precipitation (climatology)
; seasonality
; snow cover
; snowmelt
; spatiotemporal analysis
; China
; Qinghai-Xizang Plateau
英文摘要: Changes in snow cover over the Qinghai-Tibetan Plateau have attracted much attention in recent years owing to climate change. Because of the limitations of in situ observations, only a few studies have analyzed the dynamics of snow cover. Using observations from 103 meteorological stations across the Qinghai-Tibetan Plateau, this study investigated the spatial and temporal variability of snow depth and the number of snow-cover days. The results show a very weak negative trend for the snow depth and the number of snow-cover days in spring and winter from 1961 to 2010, but two different trends were found: an initial increase followed by a decrease. In summer and autumn, snow depth and the number of snow-cover days show a significant decreasing trend for most sites. The duration of snow cover exhibits a significant decreasing trend (-3.5 ± 1.2 days decade-1), which was jointly controlled by a later snow starting time (1.6 ± 0.8 days decade-1) and an earlier snow ending time (-1.9 ± 0.8 days decade-1) consistent with a response to climate change. This study highlights the competing effects of rising temperatures and changing precipitation, which remain an important challenge in understanding and interpreting the observed changes in snow depth and the number of snow-cover days for the Qinghai-Tibetan Plateau. © 2017 American Meteorological Society. 资助项目: CAS, Chinese Academy of Sciences
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49876
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; University of Chinese Academy of Sciences, Beijing, China; National Climate Center, Beijing, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China
Recommended Citation:
Xu W.,Ma L.,Ma M.,et al. Spatial-temporal variability of snow cover and depth in the Qinghai-Tibetan plateau[J]. Journal of Climate,2017-01-01,30(4)