干旱区生态环境知识资源中心(Arid): Fingerprinting of rainfall over semi-arid region, Western India, using MATLAB and GIS

Arid

DOI	10.1007/s10661-023-11225-6
	Fingerprinting of rainfall over semi-arid region, Western India, using MATLAB and GIS
	Choubey, Saurabh; Kumari, Rina; Chander, Shard
通讯作者	Kumari, R
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2023
卷号	195 期号:5
英文摘要	The present study investigates long-term changes in the rainfall regime over the Sabarmati River Basin, Western India, during 1981-2020 using computational and spatial analysis tools. Daily gridded rainfall data from India Meteorological Department (IMD) at 0.25 x 0.25 spatial resolution was employed to determine changes in rainfall at annual, monthly, and seasonal scales and analyze changes in rainfall characteristics using different thresholds for dry/ wet days and prolonged spells over Western India. Mann-Kendall test, Sen slope estimation, and linear regression analysis indicate that annual and monsoon rainfall over the basin has increased while the rest of the seasons have shown a declining trend. However, none of the trends obtained was found to be statistically significant. Spatial analysis of rainfall trends for each decade between 1980 and 2020 revealed that certain parts of the basin had experienced a significant declining trend during 1991-2000. Monthly rainfall analysis indicates the presence of a unimodal distribution of rainfall and a shift in rainfall towards later monsoon months (August and September). It is also inferred that days with moderate rainfall have decreased while low and extreme rainfall events have increased over the basin. It is evident from the study that the rainfall regime is highly erratic, and the study is important in understanding the changes in the rainfall regime during the last 40 years. The study has significant implications for water resource management, agricultural planning, and mitigation of water-related disasters.
英文关键词	Sabarmati River Basin Sen's slope estimator Mann-Kendall test Unimodal Rainfall Distribution Moderate rainfall events
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000978805900001
WOS关键词	RIVER-BASINS ; VARIABILITY ; TRENDS
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/2XILL650/396174
推荐引用方式 GB/T 7714	Choubey, Saurabh,Kumari, Rina,Chander, Shard. Fingerprinting of rainfall over semi-arid region, Western India, using MATLAB and GIS[J],2023,195(5).
APA	Choubey, Saurabh,Kumari, Rina,&Chander, Shard.(2023).Fingerprinting of rainfall over semi-arid region, Western India, using MATLAB and GIS.ENVIRONMENTAL MONITORING AND ASSESSMENT,195(5).
MLA	Choubey, Saurabh,et al."Fingerprinting of rainfall over semi-arid region, Western India, using MATLAB and GIS".ENVIRONMENTAL MONITORING AND ASSESSMENT 195.5(2023).