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A geological model of London and the Thames Valley, southeast England; Modelling rapid coastal catch-up after defence removal along the soft cliff coast of Happisburgh, UK; Enkoping Esker Pilot Study : workflow for data integration and publishing of 3D geological outputs [2] UK Minecraft Geology Model built using Groundhog [3]
A digital elevation model (DEM) or digital surface model (DSM) is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, moon, or asteroid.
Includes different thematic maps such as: transportation, elevation, drainage, vegetation, administrative boundaries, land cover, population centres, and land use. Registration required. [2] FABDEM: The first global digital elevation model at 30 meter resolution with forests and buildings removed.
DTED (or Digital Terrain Elevation Data) is a standard of digital datasets which consists of a matrix of terrain elevation values, i.e., a Digital Elevation Model.This standard was originally developed in the 1970s to support aircraft radar simulation and prediction.
The USGS DEM standard is a geospatial file format developed by the United States Geological Survey for storing a raster-based digital elevation model.It is an open standard, and is used throughout the world.
Digimap is a web mapping and online data delivery service developed by the EDINA national data centre for UK academia. It offers a range of on-line mapping and data download facilities which provide maps and spatial data from Ordnance Survey, British Geological Survey, Landmark Information Group and OceanWise Ltd Ltd., (marine mapping data and charts from the UK Hydrographic Office ...
GTOPO30 is a digital elevation model for the world, developed by United States Geological Survey (USGS). It has a 30-arc second resolution (approximately 1 km), [1] and is split into 33 tiles stored in the USGS DEM file format. According to DTED and USGS DEM the absolute vertical accuracy of GTOP30 varies from ±30 meters. [2]
The first version of LandSerf was written in 1996 as a platform for performing scale-based analysis of Digital Elevation Models. It implemented the idea of multiscale surface characterisation proposed by Jo Wood where characteristics such as slope, curvature and feature type could be measured over a range of spatial scales.