Track vegetation change between two dates. The model calculates NDVI for a before and an after scene, clips to your area of interest, computes the difference, extracts zones where NDVI fell by 0.5 or more as polygons with their area in square metres, aggregates the change into a hexagon grid with zonal statistics and writes an HTML report with the count and total area of the loss zones. Use Level-2A bands with the offset removed; no cloud or water mask is applied.
Eight Bozmaps QGIS models in one zip: flood, landslide, wildfire, NDVI, NDVI change detection, land surface temperature, OSM map generator and vegetation vulnerability.
Screens how far inland a tsunami of a height you choose could reach, from a DEM, a coastline and land use roughness, using the published Berryman height-loss method.
Zone of Theoretical Visibility for a proposed wind turbine, mast or tall building, with visible area by distance band and the buildings that can see it.