efb28f60-f63a-4671-aa05-b5468c128641 Natural Science Institute of Iceland natt@natt.is 2026-09-29T13:21:15.136758901Z ISO 19115:2003/19139 1.0 1 50 50 50 50 true 1 20 20 true 1 20 true 1 10 10 10 10 true 3057 / 8088 Stefnukort / Aspect map 2022-02-02 Slope aspect map of Iceland. This tool calculates slope aspect (i.e. slope orientation in degrees clockwise from north) for each grid cell in an input digital elevation model (DEM). “Aspect values indicate the directions the physical slopes face.” The values of each cell in the output raster indicate the compass direction the surface faces at that location. It is measured clockwise in degrees from 0 (due north) to 360 (again due north), coming full circle. Flat areas having no downslope direction are given a value of -1. Natural Science Institute of Iceland natt@natt.is https://atlas.lmi.is/gn/myndir/aspect.jpg Thumbnail Aspect map terrain analysis DEM derivates topographic attributes geomorphometry first derivatives steepness surface parameters geomorphology ecology (soil) conservation practices (soil) biodiversity mapping land management landscape planning land capability class natural hazard assessment microclimate assessment aspect stefnukort engar takmarkanir, opið aðgengi TilvísunHöfundar 4.0 Alþjóðlegt (CC BY 4.0) 50 eng -24.7416 -13.1983 63.2315 66.5641 GeoTIFF 1.0 Degrees [°] 50 https://dem.gis.is/mapview/?application=DEM&l=is&c=510085,576349&z=2.0&ls=87,1607,1041,62 WWW:LINK-1.0-http--link The aspect map in geoportal https://gis.lmi.is/mapcache/isn93/wms?request=GetCapabilities OGC:WMS-1.3.0-http-get-capabilities IslandsDEM_aspect IslandsDEM aspect Degrees [°] 20 Degrees [°] 10 Percent [%] 50 Percent [%] 20 Percent [%] 10 https://atlas.lmi.is/gn/myndir/AspectMap2021.pdf WWW:LINK-1.0-http--link Information document about the Aspect map data. PDF document https://dem.gis.is/mapview/?application=DEM WWW:LINK-1.0-http--link Ísland DEM Geoportal https://ftp.lmi.is/gisdata/raster/ WWW:LINK-1.0-http--link FTP - NLSI https://ftp.lmi.is/gisdata/raster/StyleSymbology/ WWW:LINK-1.0-http--link FTP NLSI - styles http://www.lmi.is/ WWW:LINK-1.0-http--link Natural Science Institute of Iceland - Webside NLSI Webside See further information about the Aspect map in the attached metadata description.