Comparative analysis of the yacht marinas' vulnerability to sea level rise by using an integrated vulnerability index

This study aims to analyse the vulnerability of yacht marinas in Bodrum to sea level rise (SLR) compound impacts using seven spatial physical and eight socio-economic parameters. A new integrated marina vulnerability index (IMVI) was developed as a composition of the physical coastal vulnerability index (PCVI) and non-physical marina vulnerability index (MVI). To determine vulnerability values, coastal vulnerability index approach was used. A geo-database was created using spatial and tabular data collected from different data source. The PCVI parameters were converted to a 1-5 scale by using geographic information systems analysis (GIS) (subset, buffer, slope, reclass, map algebra), and PCVI values were calculated. The MVI parameters were converted to a 1-5 scale by using the natural break classification method, and MVI values were calculated. Both PCVI and MVI results were presented as maps and tabular values using a scale of 1 (Very Low Vulnerability) to 5 (Very High Vulnerability). The results provide comparative vulnerability analyses of seven marinas, using the PCVI and MVI, individually and, their combination with IMVI.  The findings showed that the physical vulnerability of marinas was generally higher than their socio-economic vulnerability.  While the physically very high vulnerability marinas are Turgutreis, Yalikavak and Ortakent, the marina with very low socio-economic vulnerability is Ortakent. According to IMVI results, Turgutreis, Yalikavak and Milta are the vulnerable marinas both physically and socio-economically. Consequently, this study potentially brings a new perspective to research on SLR-induced climate impacts not only for marinas but also for cargo ports.