![]() Originally the term DEM was exclusively used for raster representations (thus elevation values given at the intersection nodes of a regular grid).ĭigital Terrain Model (DTM) is a DEM of the shape of the ground surface. The term DEM was introduced in the 1970s with the purpose of distinguishing the simplest form of terrain relief modelling from more complex types of digital surface representation. The definition of DEMĪ Digital Elevation Model (DEM) is a digital model or three dimensional (3D) representation of a terrain's surface created from elevation data. By clicking the image"Introduction to DEMs", a summary presentation will be opened. In this section, the digital elevation models will be introduced. ![]() Introduction for Digital Elevation Models 8.4 National landslide susceptibility for roads.8.3 National scale landslide susceptibility.8.1 Analysing historical data of hazard events.7.4 Mapping buildings from satellite images.7.2 Generating physical vulnerability curves.6.2 Local coastal flood risk assessment.7.2 Comparing legislation and planning frameworks.4.3 Landslide susceptibility at the national scale.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |