Spectral Clustering of Coral Reefs on the Small Islands, Spermonde Archipelago, Indonesia

Nurjannah Nurdin *

Department of Marine Science, Hasanuddin University, Jl. Perintis Kemerdekaan km.10, Makassar, 95245, Indonesia

Teruhisa Komatsu

Atmosphere and Ocean Research Institute (AORI), The University of Tokyo, 1-15-1, Kashiwanoha, Kashiwa, 277-8564, Japan

Hiroya Yamano

National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba-City, Ibaraki, 305-8506, Japan

Gulam Arafat

Department of Marine Science, Hasanuddin University, Jl. Perintis Kemerdekaan km.10, Makassar, 95245, Indonesia

Chair Rani

Department of Marine Science, Hasanuddin University, Jl. Perintis Kemerdekaan km.10, Makassar, 95245, Indonesia

M. Akbar AS

Magister Information Technology for Natural Resources Management (MIT), SEAMEO Biotrop. Jl. Raya Tajur, km 6. Bogor, Indonesia

*Author to whom correspondence should be addressed.


Abstract

Ecologically, coral reef has a function to protect the others component of marine and coastal ecosystem from pressure of wave and storm. If compared with the other ecosystems, coral reef that are most easily destroyed. Spermonde archipelago consist of more than one hundred small islands, which have the higher potential ecosystem especially of coral reef distribution. It is very influencing and provide higher contributes to the preservation of society, where most livelihoods depend on its shallow water and has high growing human activity. Remote Sensing technologies is an alternative to support the availability of spatial information resources, such as coral reefs in the large area. However, before remote sensing can be viewed as a practical monitoring and diagnostic tool for entire coral communities, there is a need to understand the spectral responses from individual coral.The aim of this study is identifying the spectral reflectance of coral reefs using hyperspectral data, it is expected that they can be used as references in discriminating healthy coral. Spectral reflectance data was collected in Spermonde Archipelago, Indonesia by using a hyperspectral radiometer. Correlation and cluster analysis support that distinct differences in reflectance spectra among categories existed. The analysis result of hyperspectral data shown that live corals, dead corals covered with alga and coral rubble are spectrally separable from each other.

 

Keywords: Hyperspectral data, spectral reflectance, coral reefs


How to Cite

Nurdin, Nurjannah, Teruhisa Komatsu, Hiroya Yamano, Gulam Arafat, Chair Rani, and M. Akbar AS. 2014. “Spectral Clustering of Coral Reefs on the Small Islands, Spermonde Archipelago, Indonesia”. Physical Science International Journal 5 (1):1-11. https://doi.org/10.9734/PSIJ/2015/9390.

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