ANALISIS KLASIFIKASI OBJEK PENUTUP DASAR PERAIRAN LAUT DANGKAL MENGGUNAKAN CITRA ALOS AVNIR-2

Nurjannah Nurdin, Taufik Hidayatullah, M. Akbar AS

Abstract


lnformasi mengenai obyek penutup dasar perairan laut dangkal sangat penting untuk diketahui dalam pengelolaan daerah pesisir dan laut. Tujuan dari penelitian ini adalah untuk mengetahui jenis dan distribusi obyek penutup dasar perairan laut dangkal dengan menggunakan citra Alos AVNIR-2. Penelitian ini dilaksanakan pada bulan Juni 2008 yang meliputi tahap persiapan, survei dan pengambilan data lapangan, pengolahan awal, pengolahan tanjut dan pengolahan akhir pemrosesan citra. Hasil klasifikasi citra menuniukan Atos AVNIR-2 dapat membedakan 10 tipe obyek perairan laut dangkal, yaitu: l) lamun dan pasir, 2) lamun, 3) pecahan karang dan pasir, 4) karang mati ditumbuhi alga dan pasir, karang mati, 5) karang keras dan karang mati ditumbuhi alga, 6) pecahan karang dan pasir, 7) lamun, alga dan pasir, 8) pecahan karang, 9) pasir dan karang mati ditumbuhi alga, 10) pasir. Jenis obyek penutup dasar perairan dangkal di Pulau Kalukalukuang secara berurut didominasi oleh karang mati, lamun dan pasir bercampur pecahan karang.

Kata Kunci: Laut Dangkal, Citra Alos AVNIR-2, Pulau Kalukalukuang 

ABSTRACT

Information about the bottom object of shallow water is important to know which is ultimately beneficial as the material for the management of coastal and marine areas. The aim of this study is to determine the types and distribution of sea bottom characteristics area in shallow water using satellite imagery Alos AVNIR-2. The study was conducted in June 2008 in Kalukalukuang Island which included the preparation stage, survey and field data acquisition, preprocessing, middle processing and final processing of the image processing. The results of image classification analysis showed that Alos AVNIR-2 was capable to distinguish of 10 types of sea bottom characteristics in the shallow waters. They are 1) sea grass mixed with sand, 2) sea grass, 3) rubbers mixed with sand, 4) dead coral with algae mixed with sand, 5) hard coral and dead coral with algae, 6) rubbers mixed with sand (above the water surface), 7) sea grass, algae mixed with sand, 8) rubbers, 9) sand, and rubbers with algae, 10) sand. Characteristics of sea bottom in the shallow water of Katukalukuang lsland were dominated by dead coral, sea grass and sand with rubbers.

Keywords: Shallow Water, Alos AVNIR-2 imagery, Kalukalukuang Island


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