Integrating multibeam echo sounder and satellite-derived bathymetry for mapping of shallow coastal water

Echosounders are the most used depth acquisition equipments in bathymetry surveys. Despite its widespread usage, the vessels that are equipped with echosounders and their necessary components are not able to enter certain areas where the water depth is too shallow. This is due to the risk of vessel and equipment damage. An advancement in depth acquisition methods, which is the satellite-derived bathymetry, can estimate the depths of shallow waters (usually coastal waters) through specific parameters. In this study, a bathymetry map of the waters surrounding Coral Island is generated with the integration of bathymetry that was obtained from echosounding survey and satellite image. The data used for this study are secondary data that were obtained from government agencies and were then further processed in specialized softwares. The results from the data processing stage were then analysed by assessing the accuracy and fit between the depths derived from MBES and satellite image to determine the best result to be used to establish a bathymetry map derived from satellite imagery. The final output of this study is the integrated bathymetry map, which was an integration of the depths derived from MBES and satellite image.