The mapping of the vulnerability coastal area in Pangandaran District by the coastal vulnerability index (CVI) approach

Abstract

The phenomenon of sea level rise (SLR) in Pangandaran Regency threatens the continuity of human activities such as tourism, fisheries and trade that gives value to coastal regions. The southern coast of Java directly faces the Indian Ocean and sea levels are expected to rise by 2 – 4 mm/year, leaving the Pangandaran Regency relatively vulnerable to SLR. Coastal vulnerability can be mapped using the Coastal Vulnerability Index method to determine levels of vulnerability based on six parameters which are geomorphology, elevation, tidal range, significant wave height (SWH), shoreline change and rate of SLR. The results show that the geomorphology of Pangandaran Regency is considered to be very vulnerable (Score 5) due to the number of sandy beaches present. Elevation is dominated by the vulnerable category (Score 4). Tidal range of the coastal region is considered moderately vulnerable (Score 3). SWH of the coastal region is very vulnerable (Score 5). Shoreline change is considered to be moderately vulnerable (Score 3) with overall erosion in the region. Rate of SLR is considered to be very vulnerable (Score 5). The coastal region Pangandaran Regency is leaning towards being vulnerable against sea level rise.