Philippine Standard time

Assessing the Vulnerability of a Coastal Community to Storm Surge: The Case of Barangay BASECO, City of Manila


Coastal communities are commonly characterized by lower geographic elevations and are often associated with higher population densities than that of inland communities (Balica et al. 2012). Disasters in the form of typhoons and storm surge-induced flooding can be very destructive for coastal communities. They are widely acknowledged to affect disproportionately the poorest in a community, as they have a relatively higher sensitivity to disaster events (UNISDR 2007). Preparing for anticipated effects of such disasters can decrease the damages to life and property and reduce the overall economic burden. This study presents a quantitative framework for measuring the vulnerability of a coastal community in the City of Manila. The framework is adapted from the Vulnerability and Capacity Assessment (VCA) method presented by Prabhakar (2015), drawing on the Intergovernmental Panel on Climate Change (2007) concept of vulnerability. The study incorporates socioeconomic factors and storm surge characteristics to ascertain the leading factors of vulnerability from a household perspective. These criteria were selected from different local and international methods used to assess climate change induced vulnerability of communities. Study findings draw on survey, key informant interview, estimation of spatial attributes and applicable published census data. The assessment results show that BASECO is highly vulnerable to storm surge impacts with an overall vulnerability score of 0.74 out of 1.00. While exposure is moderate with an index of 0.51 due to coastal flooding and extent of population exposed, sensitivity is high with 0.61. The community's high susceptibility to disaster impacts are driven by underlying development issues characteristics of impoverished urban communities. Low-income households have more economically inactive members with age groups requiring social protection and special welfare support. They are mainly dependent on irregular and informal sources. 



Related Publications