气候变化领域集成服务门户(CCPortal): A comprehensive India-wide social vulnerability analysis: Highlighting its influence on hydro-climatic risk

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DOI	10.1088/1748-9326/ab6499
	A comprehensive India-wide social vulnerability analysis: Highlighting its influence on hydro-climatic risk
	Vittal H.; Karmakar S.; Ghosh S.; Murtugudde R.
发表日期	2020
ISSN	17489318
卷号	15 期号:1
英文摘要	The impacts of hazard events such as extreme rainfall, heatwaves, and droughts are substantial and represent an increasing threat over India. Effective adaptations to these hazards require an in-depth understanding of their physical and socioeconomic drivers. While hazard characteristic models have been substantially improved, compelling evidence of the spatio-temporal analysis of social vulnerability (SoV) throughout India are still lacking. Here, we provide the first analysis of the SoV to disasters at a national-scale for the past two decades using a robust data envelopment analysis framework, which eliminates subjectivity associated with indicator weighting. An interesting result is that SoV has decreased over past decade, which is primarily due to an increase in literacy rate and conversion rate of marginalized groups to main working population, and a decrease in child population due to use of birth control. Contrarily, while analyzing hydro-climatic hazards over India, we notice an increase in probability of their occurrence over significantly large portions all over India, particularly in Karnataka, Maharashtra, Odisha, North-Eastern states and Telangana. The spatial pattern of increase is surprisingly similar for all three considered hazards, viz. extreme precipitation, heatwaves, and drought. Combining the information from SoV and hazard analysis, we further estimate the risk to hydro-climatic extremes. A notable observation is the synchronized increase in hazard and risk in these regions, indicating that hazards are contributing significantly to the increasing risk and not SoV. Further analyses of mortalities induced by different hazards indicate that deaths per million on a decadal-scale have either decreased or remained constant in recent decades, which suggests that mortality is decreasing despite the increasing risk of hazards over India. This also indicates an enhanced capacity for adaptation, which can be attributed to the decadal decrease in SoV observed in the present study. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	data envelopment analysis; India; mortality; natural hazards; risk; social vulnerability
语种	英语
scopus关键词	Data envelopment analysis; Drought; Hazards; Risk perception; Risks; Scales (weighing instruments); Extreme precipitation; Hazard characteristics; In-depth understanding; India; mortality; Natural hazard; Social vulnerability; Spatiotemporal analysis; Risk assessment; adaptive management; data envelopment analysis; hazard assessment; hydrometeorology; literacy; mortality; natural hazard; risk assessment; socioeconomic conditions; vulnerability; India; Karnataka; Maharashtra; Odisha; Telangana
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154128
作者单位	Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai, 400 076, India; Department of Computational Hydrosystems, Helmholtz Centre for Environmental Research, UFZ, Leipzig, Germany; Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Mumbai, 400 076, India; Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, 400 076, India; Earth System Science Interdisciplinary Centre (ESSIC), DOAS, University of Maryland, College Park, MD, United States
推荐引用方式 GB/T 7714	Vittal H.,Karmakar S.,Ghosh S.,et al. A comprehensive India-wide social vulnerability analysis: Highlighting its influence on hydro-climatic risk[J],2020,15(1).
APA	Vittal H.,Karmakar S.,Ghosh S.,&Murtugudde R..(2020).A comprehensive India-wide social vulnerability analysis: Highlighting its influence on hydro-climatic risk.Environmental Research Letters,15(1).
MLA	Vittal H.,et al."A comprehensive India-wide social vulnerability analysis: Highlighting its influence on hydro-climatic risk".Environmental Research Letters 15.1(2020).