Remote Sensing Analysis of Base Cover Of The Water In Bontosua Island, Pangkajene Regency And The Islands
A H Nyompa, N Nurdin, A Haris, A Faizal, and C Rani

Departement of Marine Science, Hasanuddin University

Abstract

This research was conducted on Bontosua Island, Pangkajene Islands District, South Sulawesi to map the bottom cover of benthic habitats. Benthic identification and mapping extracted from Sentinel 2A satellite imagery acquired on 29 July 2021 using the Lyzenga Algorithm and unsupervised classification. The field verification using the Rapid Reef Assessment method. The results showed that there were seven dominant objects with a total area of 69.42 ha, namely live coral (17,32 ha), dead coral with algae (11,16 ha), broken coral (12,73 ha), sand (4,43 ha), seagrass (12,61 ha), deep sea, and mix (dead coral, sand, dead coral with algae, and coral debris) (11,17 ha). The largest cover area is live coral which has an area of 25%, and the smallest cover area is sand which is 6% of the base cover of the water Bontosua Island waters.

Keywords: Sentinel-2A, Bottom Coverage, and Unsupervised Classification

Topic: Marine and Fisheries Geographic Information System