The Locating Suitable Anchoring Sites in Sattahip Bay, Thailand by Using GIS and Logistic Regression Model.

บทคัดย่อ

     Sattahip Bay is one of the important maritime regions in Thailand since 3 main harbors (Laem Thian Naval Base, Chuk Samet Naval Base, and Sattahip Commercial Port) located in this bay. Consequently, tons of ships port-in and port-out in this area including some ships also anchor in the bay as well. However, selecting a wrong anchoring location led to unexpected incidents such as getting ground on the rock, ship collision, etc. In order to mitigate those issues, the aim of this project is to use Geographic Information System (GIS) and Logistic Regression Model to generate suitable an anchoring site model in Sattahip Bay with 5 main factors, which are water depth, seafloor type, current speed, the availability of communication signal, and clearance from dangerous object. The results from the model imply that the middle area of Sattahip Bay is the most suitable for anchoring since all criteria is met that are neither too deep and too shallow water depth, proper holding force from sand and clay, low current speed, average accessibility of communication signal, and no dangerous object. This model is useful to serve as a cross check tool for navigators to mitigate man errors in anchoring.