NOAA-AVHRR and 4D GIS-towards a more realistic view of fog clearance

The development of a 4D GIS application for the realistic rendering of fog clearance is presented. The system comprises of a 2D raster GIS, a 3D volume rendering technique and a 4D animation procedure. The application extensively uses NOAA-AVHRR data to provide a realistic view of fog coverage and fog optical properties.