GRASS GIS - The World Leading Free Software GISCommonly referred to as GRASS, this is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS is official project of the
概要 – Google Earth
SAGA - System for Automated Geoscientific Analyses
