气候变化领域集成服务门户(CCPortal): Snow cover expansion with contrasting depth thinning in the recent 40 years: Evidence from the Yalong River Basin, South-eastern Tibetan Plateau

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DOI	10.1016/j.ejrh.2024.101786
	Snow cover expansion with contrasting depth thinning in the recent 40 years: Evidence from the Yalong River Basin, South-eastern Tibetan Plateau
	Wu, Nan; Zhang, Ke; Chao, Lijun; Ning, Zhongrui; Wang, Sheng; Jarsjo, Jerker
发表日期	2024
EISSN	2214-5818
起始页码	53
卷号	53
英文摘要	Study region: Yalong River Basin, Southeastern Tibetan Plateau, China. Study focus: The spatio-temporal variability of snow characteristics are important indicators of climate change. Based on statistical analyses of remote sensing data from 1979 to 2018, this study explored changes of snow characteristics and climate parameters in the basin. This region has, despite rapidly changing ambient conditions, not previously been investigated at the current level of detail, including multiple snow-related variables. New hydrological insights for the region: We show that the average snow depth (SD) decreased over the considered 40-year period, while the snow covered days showed an opposite, increasing trend. This pattern was attributed to a combined effect of a gradually earlier arrival of the first snow and a gradually later arrival of the last snow, with overall more frequent occurrence of instantaneous snow cover. Such short-duration snow events are likely linked to regionally increasing precipitation amounts and intensities that on an event basis can outweigh melting effects of increased temperatures. The results furthermore underscored a high degree of spatiotemporal heterogeneity within the basin, not least in SD, which decreases in 27 % and increases in 73 % of the basin. These findings have crucial implications for energy budgets and frozen season length of the basin, raising questions about the prevalence of similar dynamics across the Tibetan plateau.
英文关键词	Snow features; Influencing factors; Spatiotemporal variation; Trend analysis; Correlation analysis
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001232461500001
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298840
作者单位	Hohai University; Hohai University; Hohai University; Hohai University; Hohai University; Hohai University; Stockholm University
推荐引用方式 GB/T 7714	Wu, Nan,Zhang, Ke,Chao, Lijun,et al. Snow cover expansion with contrasting depth thinning in the recent 40 years: Evidence from the Yalong River Basin, South-eastern Tibetan Plateau[J],2024,53.
APA	Wu, Nan,Zhang, Ke,Chao, Lijun,Ning, Zhongrui,Wang, Sheng,&Jarsjo, Jerker.(2024).Snow cover expansion with contrasting depth thinning in the recent 40 years: Evidence from the Yalong River Basin, South-eastern Tibetan Plateau.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,53.
MLA	Wu, Nan,et al."Snow cover expansion with contrasting depth thinning in the recent 40 years: Evidence from the Yalong River Basin, South-eastern Tibetan Plateau".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 53(2024).