Analysis on damaged areas by wildfire on Gangwon province in 2019 using KOMpsat-3 images

Satellite image analysis are efficient tool for quick response of extensive disasters, and wildfire is the recent global issue. This study will present the entire process of damaged area analysis by wildfire using KOMPSAT data, which is the earth observation satellite with an optical sensor collecting data of four multispectral bands and one panchromatic band. In this study, KOMPSAT-3 and Sentinel-2 were used for burned area analysis. After preprocessing the KOMPSAT-3, images with geometric correction and Bottom-Of-Atmosphere (BOA) reflectance were produced for reflectance information after wildfire, and Sentinel-2 file was used for non-vegetation area removal. For burned area detection, Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) were calculated using BOA reflectance values, and burned areas were extracted by thresholding of index map values. The analyzed results of damaged areas in Gangwon province were compared with the official report of Korea Forest Service.