BATHYMETRY MONITORING OF ASABA COAST USING OPEN SATELLITE IMAGERY AND FISHING VESSEL DEPTH DATA

Abstract

 In this study, we examine the monitoring of coastal topography by creating a dataset that combines "shoreline position readings from open satellite images" and "depths and locations obtained from fishing vessels during operation and navigation (fishing vessel big data)." We show the changes in coastal topography along 8 km of coastline from 2017, 2018, and 2019 data collected around the Asaba Coast in Enshu-nada, Shizuoka Prefecture, and explain what can be read from the topographic data and its applicability to monitoring coastal topography. Further, we discuss the method's applicability as a coastal monitoring system that replaces or is used with surveying.