干旱区生态环境知识资源中心(Arid): Divergent determinants on interannual variability of terrestrial water cycle across the globe

Arid

DOI	10.1016/j.scitotenv.2024.174046
	Divergent determinants on interannual variability of terrestrial water cycle across the globe
	Zhu, Jinyu; Yin, Dongqin; Li, Xiang; Zhu, Ruirui; Zheng, Hongxing
通讯作者	Yin, DQ
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	945
英文摘要	Intensifying variability in precipitation under a changing climate is projected to amplify fluctuation in terrestrial hydrological cycle, leading to more severe water-related disasters. The connections between interannual variability of hydrological components and factors influencing these connections have not been clearly defined yet. Based on terrestrial water budget from Climate Data Record, we identify dominant factors influencing partitioning interannual variability of precipitation (P) into that of evapotranspiration (E), runoff (Q), and water storage deviation (Delta S) across the globe by employing geographical detector model (GDM). Sensitivities of the variability partitioning to dominant factors are quantified for different hydroclimate regions by linear regression model and law of total differential. Results show that dominant factors influencing precipitation variability partitioning (VP) are different across distinct hydroclimate conditions. Comparing the statistical index (q value) of the GDM, it can be seen that surface air temperature (T-a), snow water equivalent (SWE) and water storage capacity (S-max) are dominant factors of VP in humid, semi-arid and arid regions, respectively. Changes in P variability largely can transfer into Q variability in humid region. The P variability partitioned into Q variability is dramatically reduced in semi-arid region with SWE decreasing, while P variability partitioned into Delta S variability increases with S-max increasing in arid region. Joint effects of T-a and coefficient of variation of precipitation (P-cv) are found to be the most important interaction in determining VP across the globe. Furthermore, warmer temperatures in humid region cause >90 % of the change in precipitation variability to be transferred to Q variability change. In semi-arid region with snowfall, decreased SWE has strong effect on changes in Delta S (30-40 %) and Q (20-40 %) variability. Our findings imply a changing VP and more severe impacts of hydrological extremes under future climate, where intensive changes in T-a, SWE and land cover are projected.
英文关键词	Terrestrial water cycle Interannual variability Variability partitioning Geographical detector model
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001260586000001
WOS关键词	VEGETATION CHANGES ; CLIMATE ; EVAPOTRANSPIRATION ; SNOW ; STORAGE ; FRAMEWORK ; IMPACTS ; TRENDS ; LAND ; IDENTIFICATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405511
推荐引用方式 GB/T 7714	Zhu, Jinyu,Yin, Dongqin,Li, Xiang,et al. Divergent determinants on interannual variability of terrestrial water cycle across the globe[J],2024,945.
APA	Zhu, Jinyu,Yin, Dongqin,Li, Xiang,Zhu, Ruirui,&Zheng, Hongxing.(2024).Divergent determinants on interannual variability of terrestrial water cycle across the globe.SCIENCE OF THE TOTAL ENVIRONMENT,945.
MLA	Zhu, Jinyu,et al."Divergent determinants on interannual variability of terrestrial water cycle across the globe".SCIENCE OF THE TOTAL ENVIRONMENT 945(2024).