SIOSE DESKTOP > Technical Characteristics

•Geographic Reference System ETRS89, according to Consejo Superior Geográfico Geographic High Council recommendation and INSPIRE.

•The Cartographic Projection System is Universal Transversal Mercator Projection (UTM), zones 28, 29, 30 y31.

•The Equivalent Cartographic Scale is 1:25.000.

•The Spatial Unit is Polygon. Each polygon must contain a homogeneous Land Cover/Land Use type or a combination of several homogeneous Land Cover/Land Use types. This has to make each polygon clearly distinguishable of all around it.

•There are different surface spatial unit, according to the cover class in the Land:

oUrban fabrics and water bodies: 1 ha

oWetland, beaches, riverside vegetation and coastal cliff: 0,5 ha

oCrops, forest and natural areas: 2 ha

All of these values are from SIOSE 2005. The minimum unit sizes are revised in each update of SIOSE database, according to the real needs of SIOSE’s users.