AUTHOR=Suresh Babu K. V. , Singh Swati , Kabdulova G. , Gulnara Kabzhanova , Baktybekov G. 

TITLE=Geospatial assessment of forest fire impacts utilizing high-resolution KazEOSat-1 satellite data

JOURNAL=Frontiers in Forests and Global Change

VOLUME=Volume 7 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/forests-and-global-change/articles/10.3389/ffgc.2024.1296100

DOI=10.3389/ffgc.2024.1296100

ISSN=2624-893X

ABSTRACT=Burnt area mapping is important for fire managers to take appropriate mitigation steps and restoration activities after the fire event. In this study, KazEOSat 1 high resolution satellite datasets are used to map the burnt area in the regions of Kazakhstan. KazEOSat 1 satellite is in Sun-synchronous orbit, consisting of 4 bands including blue, green, red, NIR multispectral bands in 4 m spatial resolution, while panchromatic data is in 1m spatial resolution. This study examined three spectral indices, namely AVI, BAI, and GEMI, for mapping the burnt area based on the four spectral bands NIR, blue, red, and green of the KazEOsat 1 satellite datasets. The DN values for each band are used to determine TOA reflectance, which is then used as a basis for deriving the aforementioned spectral indices. The results of spectral indices, AVI, BAI and GEMI are compared based on a discriminative index (M) for quantifying the effectiveness of each index based on burned area derived from KazEOSat 1 datasets. The spectral index BAI shows higher M values than other indices, therefore, the index BAI has the higher capability to extract the burned area as compared with AVI and GEMI. Accuracy was calculated based on the number of forest fire incidents fell in burned and un-burned areas and results are showing that BAI shows the highest accuracy, while, AVI show the lower accuracy among them. Therefore, the BAI has the highest ability for extracting the burned area using the KazEOsat 1 satellite datasets. As revisit time period of KazEOsat is 3 days, this study will be useful to map the burnt area and fire progression in Kazakhstan.