Abstract: ENVI 5.2 and ArcGIS 10.1 were used to process 16-phase Landsat TM/OLI image data for Sanya Coral Reef National Nature Reserve from 1987 to 2017. Assisted by field research data, we used visual interpretation to summarize the rules of coral reef distribution,and to extract the spatial distributional data of shallow sea coral reefs in the reserve. The accuracy of the results was verified by field survey and 14 spot information collected. Finally, We obtained the spatial distribution data of shallow sea coral reefs in phase 16. This data set can be used for analysis of the temporal and spatial changes, eco-environmental changes of coral reefs, among others. With the support time series, it clearly reflects the distributional changes of coral reefs in Sanya National Nature Reserve.
Keywords: coral reef; remote sensing monitoring; visual interpretation; information extraction; Sanya