Pemetaan Sebaran Terumbu Karang Dengan Metode Algoritma Lyzenga Secara Temporal Menggunakan Citra Landsat 5 7 Dan 8 (Studi Kasus : Pulau Karimunjawa)

Karimunjawa is a sub district located in the Jepara District, Central Java. Karimunjawa is a national park in Indonesia. Publications also famous for sea travel, especially coral reefs. Reefs may be the number one reason tourists visit karimunjawa, but the lack of scientific information related to changes in coral reef habitats in the archipelago karimunjawa make the process of monitoring the state of coral reefs karimunjawa experiencing difficulties. The purpose of this study was to determine differences in coral reef area, using Landsat 5 in 1996, Landsat 7 in 2002 and 2016 Landsat 8 Karimun Islands and RBI Map Scale 1: 25000. The methodology used in this study is the use of remote sensing to determine how many coral reefs that decreases or increases lyzenga temporal algorithm using Landsat satellite imagery and field validation. The extent of this study found coral reefs has decreased since 1996, 2002 and 2016 amounted to 15.94% or 1,128,000 m2 of 7.0748.00 m2. While other classes increases as in 1996, 2002, 2016, the class of sand increased 6,009,000 m2, grade substrates increases 1,755,600 m2, grade water becomes 859.600 m2