Abstract:
A study was conducted at Kelantan Delta to identify mangrove forest types based on
Vegetation Index (VI) approach. The aim of this study were to evaluate and compare
the performance of different VI (Atmospheric based corrected VI), derives from the
Landsat Thematic Mapper (TM) 2000 satellite. In this study four indices were used,
namely the Global Environmental Monitoring Index (GEMi), Atmospherically
Resistant Vegetation Index (ARVI), Modified Aerosol Free Vegetation Index Mid
Infrared (Modified AFRIM1R) and Modified Aerosol Free Vegetation Index
Shortwave-Infrared (Modified AFRiswiR). Total of five main mangrove forest types
which were Avicennia, Avicennia-Sonneratia, Mixed Acrostichium, Achantus
Sonneratia, and Mixed Sonneratia have been recorded during field investigation and
the performances of different VI were analyzed using Spatial-Modeler module in
Erdas Imagine environment. The results demonstrated that the indices range for
Modified AFRiswJR at Kelantan Delta was found to be well separated and therefore
five classes have been generated.
