干旱区生态环境知识资源中心(Arid): Extreme rainfall and drought events in Tamil Nadu, India

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DOI	10.3354/cr01600
	Extreme rainfall and drought events in Tamil Nadu, India
	Rajkumar, R.; Shaijumon, C. S.; Gopakumar, B.; Gopalakrishnan, Deepak
通讯作者	Rajkumar, R
来源期刊	CLIMATE RESEARCH
ISSN	0936-577X
EISSN	1616-1572
出版年	2020
卷号	80 期号:3 页码:175-188
英文摘要	In the present study, we examined the exposure of the Tamil Nadu region, India, to droughts and extreme rainfall events using the Standardised Precipitation Evapotranspiration Index (SPEI) and a classification scheme based on daily rainfall. We used high-resolution temperature and rainfall observations from the India Meteorological Department for the period 1951-2016. The robustness of the results was tested using the Mann-Kendall trend (M-K) test and the Kolmogorov-Smirnov (K-S) test. During the study period, there were statistically significant increasing trends in drought area (90% significance level), maximum drought intensity (99% significance level) and maximum drought severity (99% significance level) over the Tamil Nadu region. There has also been an increase in the frequency and intensity of heavy rainfall events in recent years. The spatio-temporal dimensions of this study suggest an increasing exposure of this semi-arid, rain shadow region to severe droughts and extreme rainfall events in recent decades. The results provide sufficient grounds to substantiate the necessity of immediate interventions at the policy level.
英文关键词	Drought SPEI Extreme rainfall Rain shadow region Semi-arid climate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000597222700002
WOS关键词	NORTHEAST MONSOON RAINFALL ; SOUTH PENINSULAR INDIA ; DATA SET ; VARIABILITY ; PRECIPITATION ; TEMPERATURE ; CLIMATE ; ENSO ; TRENDS ; ASIA
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327879
作者单位	[Rajkumar, R.; Shaijumon, C. S.] Indian Inst Space Sci & Technol, Dept Humanities, Thiruvananthapuram 695547, Kerala, India; [Gopakumar, B.] Govt Engn Coll, Dept Math, Trichur 680009, India; [Gopalakrishnan, Deepak] Minist Earth Sci, Indian Inst Trop Meteorol, Pune 411008, Maharashtra, India
推荐引用方式 GB/T 7714	Rajkumar, R.,Shaijumon, C. S.,Gopakumar, B.,et al. Extreme rainfall and drought events in Tamil Nadu, India[J],2020,80(3):175-188.
APA	Rajkumar, R.,Shaijumon, C. S.,Gopakumar, B.,&Gopalakrishnan, Deepak.(2020).Extreme rainfall and drought events in Tamil Nadu, India.CLIMATE RESEARCH,80(3),175-188.
MLA	Rajkumar, R.,et al."Extreme rainfall and drought events in Tamil Nadu, India".CLIMATE RESEARCH 80.3(2020):175-188.