Analysis of East Surabaya Shoreline Determination Using Tidal Data, Image Satellite and RTK-GNSS

Abstract

Coastal areas often experience changes in function, region supposed to be conservation area or coastal protection forests, as water catchment areas and habitats of mangrove forests have been turned into region large-scale housing, residential, industrial, ware housing and so on. Coastal area of Surabaya, especially in the East Surabaya, the reclaimed much influenced by several factors, including results from land fill for various purposes (residential areas, factories, bussiness and etc.) and caused by the sedimentation of the estuary lead the emergence of mainland. The impact of the reclamation both landfill or natural sedimentation certainly have an impact on shoreline.Based on the explanation of the law of local government No. 23, 2014 Article 6 [1], the meant of shoreline is the boundary meeting between the highest sea level and the mainland. The use of shoreline in this provision is intended for the determination of the administrative area in the management marine areas. Where is the position of the East Surabaya shoreline recently?This paper will answer the question to determine the East Surabaya shoreline using tidal data, image satellite and Real Time Kinematic-Global Network Satellite System (RTK-GNSS). The result can be used by Surabaya Government to manage buffer and marine zone especially in the eastern part of Surabaya.