Hydrocarbon index is a significant spectral index in the direct detection of hydrocarbon materials. In this study, it has been tried to identify hydrocarbons resulted from the leakage of oil lines that have accumulated in the adjacent lands through using aster images. In order to identify hydrocarbons, the aster image was first taken in 2005, that is, the time after the hydrocarbon leakage in the vicinity of Shadegan Wetland. After editing and pre-processing the images, a hydrocarbon index was applied to the ester image. The upper edge of this index displays the areas with high pollution of hydrocarbons, and the lower edge of this index represents the clean areas without hydrocarbon materials. In order to evaluate and validate the presence of hydrocarbons, two spatial statistical analysis methods of Moran insulin and hot spots were applied, that the results of hot spots analysis showed that the areas that were identified as sensitive and with hydrocarbon pollution can be confirmed with about 99% accuracy.
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