Event Based Fire Hotspot Analysis and Mapping using NASA FIRMS Data and ArcGIS скачать в хорошем качестве

Event Based Fire Hotspot Analysis and Mapping using NASA FIRMS Data and ArcGIS

1. Download Fire Hotspot Data Select appropriate sensor (MODIS or VIIRS). Website Link- https://firms.modaps.eosdis.nasa.gov/ Video Link-   • Process to download data from FIRMS for Fi...   Choose area of interest and time period. Download data in shapefile format. 2. Import Data into GIS Add the downloaded shapefile into ArcGIS. Export a working copy if necessary. Project the data into an appropriate coordinate system (e.g., UTM Zone suitable for Nepal). 3. Integrate Nearby Fire Points Use an integration tool to merge fire points within a selected threshold distance (e.g., 500 m or 1 km). This removes duplicate or very close detections. 4. Collect Events Use the “Collect Events” tool. Generate a new dataset containing incident counts (ICOUNT field). This represents fire frequency per location. 5. Test for Spatial Clustering Perform Spatial Autocorrelation (Moran’s I). Use the incident count (ICOUNT) field. Determine whether fire occurrences are clustered, dispersed, or random. Proceed only if clustering is statistically significant. 6. Perform Hotspot Analysis Use Getis-Ord Gi* Hotspot Analysis. Select the incident count field. Apply an appropriate distance band. Identify statistically significant hotspots and cold spots. 7. Interpolate Hotspot Surface Use IDW interpolation. Select the GiZScore field as input. Generate a continuous raster surface representing hotspot intensity. 8. Reclassify the Interpolated Raster Classify raster values into categories (e.g., low, moderate, high hotspot). Use appropriate threshold ranges. 9. Prepare Final Map Layout Add title, legend, scale bar, north arrow. Include projection information. Mention data source. Export final hotspot map.