Research Article

Implications of a Spatial Multicriteria Decision Analysis for Urban Development in Ulaanbaatar, Mongolia

Table 5

Data sources used to create the various information layers for the criteria maps.

Features consideredSourceMethod of creation

Urban areasLandsat 7 satellite imageUnsupervised classification
Forest areasLandsat 7 satellite imageSupervised classification
Topography (slope, aspect)CGIAR-CSI DEM of 90 m resolution/Aster GDEM of 30 mImport via GIS (grid) and Erdas (raster)
HydrologyASTER GDEMGeoprocessing tool/hydrology tool in GIS
VegetationLandsat 7 satellite imageNormalized difference vegetation index (NDVI)
National parksNational parks mapDigitizing/georeferencing