PEMANFAATAN CITRA SATELIT RESOLUSI TINGGI UNTUK IDENTIFIKASI PERUBAHAN GARIS PANTAI PESISIR UTARA SURABAYA

Abstract

The coastline is also known as the confluence line between sea water and land which changes position according to position at high tide. Changing the coastline physically is indicated by the occurrence of abrasion and accretion. The coastline when it experiences setbacks is called erosion and the coastline experiences progress called accretion. The purpose of this study was to find out and identify changes in shoreline that occurred in the coastal area of North Surabaya using high-resolution satellite imagery. The method used is to compare the results of the 2012 aerial photography with the World-View 2 satellite imagery in 2017. The results of the study explain the shoreline changes that occur almost along the coast of North Surabaya with an area of total accretion of 143.06 Ha due to additional settlements , mangrove and non-mangrove vegetation and total abrasion area of 44.9 ha caused by port and factory activities. So that changes in the coastline in the coastal area of North Surabaya when viewed based on each sub-district from 2002 to 2017 tend to experience abrasion compared to accretion. Keywords: