Abstract

Tamil Nadu (TN)’s South-Eastern coastal plain comprises of 5235 villages/wards, is densely populated (∼2000/km²), and is highly vulnerable to multi-hazard events. Earlier vulnerability case studies carried out in TN utilized district as a unit of analysis, considering mostly the physical parameters. For the first time, the socio-economic vulnerability at the level of micro administrative units was analyzed for the entire stretch of the coastal plains of TN using ten census and household data-based indicators. All the indicators were used to determine the degree of vulnerability and summed up to determine the hot spots of socio-economic vulnerability. Public perception surveys carried out with 406 respondents from 363 villages were used to derive the likelihood-impact risk matrix. Results show that ∼60% of the villages between the coastal stretch of Nagapattinam and Puducherry, including major parts of Cuddalore district are highly vulnerable (hot spots) to multi-hazard risks. The information retrieved at micro administrative units can be used by policymakers and coastal managers to develop effective plans for improving the resilience and preparedness of the community.

摘要

泰米尔纳德邦（TN）的东南沿海平原由5235个村庄/地区组成，人口稠密（〜2000 / km ²），并且极易受到多种危害事件的影响。在田纳西州进行的较早的脆弱性案例研究以地区为分析单位，主要考虑了物理参数。首次使用十种人口普查和基于家庭数据的指标对整个TN沿海平原的微观行政单位级别的社会经济脆弱性进行了分析。所有指标均用于确定脆弱性程度，并进行汇总以确定社会经济脆弱性的热点。对来自363个村庄的406位受访者进行的公众看法调查被用来得出似然影响风险矩阵。结果表明，在纳加帕蒂纳姆（Nagapattinam）沿海地区和布杜切里（Puducherry）之间，约有60％的村庄，包括Cuddalore区的大部分地区，都非常容易遭受（多处）多灾种风险。决策者和沿海管理者可以使用在微观行政部门检索到的信息来制定有效的计划，以提高社区的弹性和备灾能力。