West Africa Coastal Vulnerability Mapping: Social Vulnerability Indices

The West Africa Coastal Vulnerability Mapping: Social Vulnerability Indices data set includes three indices: Social Vulnerability, Population Exposure, and Poverty and Adaptive Capacity. The Social Vulnerability Index (SVI) was developed using six indicators: population density (2010), population growth (2000-2010), subnational poverty and extreme poverty (2005), maternal education levels circa 2008, market accessibility (travel time to markets) circa 2000, and conflict data for political violence (1997-2013). Because areas of high population density and growth (high vulnerability) are generally associated with urban areas that have lower levels of poverty and higher degrees of adaptive capacity (low vulnerability), to some degree, the population factors cancel out the poverty and adaptive capacity indicators. To account for this, the data set includes two sub-indices, a Population Exposure Index (PEI), which only includes population density and population growth; and a Poverty and Adaptive Capacity Index (PACI), composed of subnational poverty, maternal education levels, market accessibility, and conflict. These sub-indices are able to isolate the population indicators from the poverty and conflict metrics. The indices represent Social Vulnerability in the West Africa region within 200 kilometers of the coast.

西非沿海地区脆弱性映射：社会脆弱性指数数据集包括三个指数：社会脆弱性指数、人口暴露指数和贫困与适应性能力指数。社会脆弱性指数（SVI）是基于六个指标开发的：人口密度（2010年）、人口增长率（2000-2010年）、地方性贫困及极端贫困（2005年）、母亲教育水平（约2008年）、市场可及性（市场旅行时间，约2000年）以及政治暴力冲突数据（1997-2013年）。鉴于高人口密度和增长率（高脆弱性）区域通常与贫困水平较低且适应性能力较高（低脆弱性）的城区相关联，在一定程度上，人口因素抵消了贫困与适应性能力指标。为弥补此情况，数据集包含两个子指数，即人口暴露指数（PEI），仅包括人口密度和人口增长率；以及贫困与适应性能力指数（PACI），由地方性贫困、母亲教育水平、市场可及性和冲突组成。这些子指数能够将人口指标从贫困和冲突指标中分离出来。这些指数代表了西非沿海地区（海岸线200公里范围内）的社会脆弱性。