干旱区生态环境知识资源中心(Arid): Evaluating homogeneity of monsoon rainfall in Saraswati River basin of Gujarat, India

Arid

DOI	10.1007/s12040-021-01671-6
	Evaluating homogeneity of monsoon rainfall in Saraswati River basin of Gujarat, India
	Machiwal, Deepesh; Parmar, B. S.; Kumar, Sanjay; Meena, Hari Mohan; Deora, B. S.
通讯作者	Machiwal, D (corresponding author), ICAR Cent Arid Zone Res Inst, Div Nat Resources, Jodhpur 342003, Rajasthan, India.
来源期刊	JOURNAL OF EARTH SYSTEM SCIENCE
ISSN	2347-4327
EISSN	0973-774X
出版年	2021
卷号	130 期号:3
英文摘要	This study investigates presence/absence of homogeneity in 32-yr (1981-2012) rainfall record of four individual monsoon months (June-September) and monsoon season (JJAS) for 16 stations in Saraswati River basin, Gujarat, India. Temporal homogeneity is examined by Hartley, Link-Wallace, Bartlett, and Tukey tests, and spatial homogeneity is tested by Levene's and Tukey tests. Coefficient of variation for rainfall in June (72-163%), July (48-100%), August (78-114%) and September (93-127%) indicate a large variability in comparison to that in JJAS period (45-60%). Correlation coefficient (r) finds moderately significant (r >= 0.7) to highly significant (0.7 > r >= 0.3) relationships in rainfall for 68 (57%), 120 (100%), 120 (100%), 109 (91%), and 120 (100%) pairs of stations in June, July, August, September, and JJAS, respectively. Distribution of rainfall is uniform and stable in July, and hence, kharif crops may be sown in July to mitigate impact of uncertain rainfall on agriculture. Dissimilar results of four homogeneity tests justify approach of adopting multiple statistical tests. Considering the likely findings of Link-Wallace and Tukey tests, both are recommended for testing homogeneity. Non-homogeneity is found at Paswadal (June, September, and JJAS), Navawas (August and JJAS), Palanpur (JJAS), and Pilucha (September) stations. The Levene's test reveals spatial homogeneity in July, August, September, and JJAS; and non-homogeneity in June. Hierarchical cluster analysis delineates four clusters of rainfall stations in four months and JJAS with their geographically distinct locations and a remarkable difference in inter-annual rainfall dynamics.
英文关键词	Box-whisker plots correlation analysis hierarchical cluster analysis multiple homogeneity tests rainfall variability homogeneity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000693033100001
WOS关键词	ABRUPT CHANGES ; CLIMATE-CHANGE ; ARID REGION ; TRENDS ; TEMPERATURE ; VARIABILITY ; SERIES ; RAJASTHAN ; EXTREMES ; IMPACT
WOS类目	Geosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS研究方向	Geology ; Science & Technology - Other Topics
来源机构	ICAR Central Arid Zone Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363825
作者单位	[Machiwal, Deepesh; Meena, Hari Mohan] ICAR Cent Arid Zone Res Inst, Div Nat Resources, Jodhpur 342003, Rajasthan, India; [Parmar, B. S.; Deora, B. S.] Sardarkrushinagar Dantiwada Agr Univ, Dantiwada, Gujarat, India; [Kumar, Sanjay] ICAR Cent Arid Zone Res Inst, Krishi Vigyan Kendra, Bhuj 370105, Gujarat, India; [Meena, Hari Mohan] Banda Univ Agr & Technol, Coll Forestry, Banda, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Machiwal, Deepesh,Parmar, B. S.,Kumar, Sanjay,et al. Evaluating homogeneity of monsoon rainfall in Saraswati River basin of Gujarat, India[J]. ICAR Central Arid Zone Research Institute,2021,130(3).
APA	Machiwal, Deepesh,Parmar, B. S.,Kumar, Sanjay,Meena, Hari Mohan,&Deora, B. S..(2021).Evaluating homogeneity of monsoon rainfall in Saraswati River basin of Gujarat, India.JOURNAL OF EARTH SYSTEM SCIENCE,130(3).
MLA	Machiwal, Deepesh,et al."Evaluating homogeneity of monsoon rainfall in Saraswati River basin of Gujarat, India".JOURNAL OF EARTH SYSTEM SCIENCE 130.3(2021).