Hydrographic survey of wharf at northport, Port Klang

Abstract

A hydrographic survey of port is very important to support the safe navigation of ships. This research had focus in Port Klang sea area which is Northport. Northport, at Lat 03 °00' N. Long 101 °24' E, is strategically located midway on the West Coast of Peninsular Malaysia. Hydrographic surveys were done at Northport's wharf, about 3 kilometers long in order to measure the depth and declaring the update one before dredging process take place. For surveying process, the equipments used falls within the broad grouping of equipment to measure depth, to establish position, and to measure water level. Depth is measured using Single-beam Echo Sounder with its multi-transducer which is the most common tool used in port. Global Positioning System (GPS) or Differential GPS (DGPS) as positioning equipment while tide gauge equipment will be used to measure water level. The data collected from surveying is logged to correct parameters for further with data processing and analyzing. From the surveys information, graphical bathymetry chart of the wharf are generated. The result showed a significant difference of bathymetry structure between surveys as indicated by the bathymetry charts; much shallower at locations closer to the wharf between 1 to 4 meters. This information together with the bathymetry is needed for dredging work.