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	Variability and trends of rainfall using non-parametric approaches: A case study of semi-arid area
	Das, Jayanta 1; Mandal, Tapash 1; Saha, Piu 1; Bhattacharya, Sudip Kumar 2
通讯作者	Das, Jayanta
来源期刊	MAUSAM
ISSN	0252-9416
出版年	2020
卷号	71 期号:1 页码:33-44
英文摘要	The analysis of variability and trends of rainfall can be used to assist better decision for climate risk and agricultural water management. This study makes an attempt to evaluate the trend and variability of annual, seasonal and monthly rainfall of 19 stations of Ajmer district, Rajasthan based on 44 year's monthly rainfall data (1973-2016). Non-parametric Mann-Kendall (MK), Modified Mann-Kendall (mMK) and Spearman's rho (SR) tests were used to achieve if there was an increasing or decreasing trend in the time series and the Sen's slope (Q) estimator was applied to identify the quantity of the trend. From the results, it was found that annual and monsoon rainfall both showed an increasing trend at three stations, located in the central part and a decreasing trend at two stations, located in the northwestern and south-western part of the study area. The magnitude of maximum increasing trends in both annual and monsoon rainfall was observed at Goela (Q = +10.17 mm/year and + 9.50 mm/year) while Jawaja (Q = -6.76 mm/year and - 5.21 mm/year) appeared with the maximum decreasing trends. On a monthly scale February showed an increasing trend at maximum number of stations (seven) and July showed a decreasing trend at maximum number of stations (seven). The information gathered from our study will help in future to estimate hydraulic procedures as well as to make sustainable water resource planning and management in this region.
英文关键词	Rainfall Mann-Kendall Spearman's Rho Sen's slope Ajmer
类型	Article
语种	英语
国家	India
收录类别	SCI-E
WOS记录号	WOS:000528258500004
WOS关键词	SPEARMANS RHO TESTS ; MANN-KENDALL ; TEMPORAL TRENDS ; TEMPERATURE ; RAJASTHAN ; SEASON ; STATE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318480
作者单位	1.Univ North Bengal, Dept Geog & Appl Geog, Darjeeling 734013, W Bengal, India; 2.Chhatrapati Sahuji Maharaj Univ, Dept Geog, Kanpur 208024, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Das, Jayanta,Mandal, Tapash,Saha, Piu,et al. Variability and trends of rainfall using non-parametric approaches: A case study of semi-arid area[J],2020,71(1):33-44.
APA	Das, Jayanta,Mandal, Tapash,Saha, Piu,&Bhattacharya, Sudip Kumar.(2020).Variability and trends of rainfall using non-parametric approaches: A case study of semi-arid area.MAUSAM,71(1),33-44.
MLA	Das, Jayanta,et al."Variability and trends of rainfall using non-parametric approaches: A case study of semi-arid area".MAUSAM 71.1(2020):33-44.