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3D Digital Elevation Model Generation
2012This chapter presents techniques used for the generation of 3D digital elevation models (DEMs) from remotely sensed data. Three methods are explored and discussed—optical stereoscopic imagery, Interferometric Synthetic Aperture Radar (InSAR), and LIght Detection and Ranging (LIDAR). For each approach, the state-of-the-art presented in the literature is
Hong Wei, Marc Bartels
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The digital generalization principle of digital elevation model
SPIE Proceedings, 2009This paper briefly is based on the discussion of three fundamental characteristics of the ground (elevation accuracy, validity of elevation order, and the preservation of elevation features) and the concept of the model, then analyses major theoretical and practical shortcomings of the DEM generated in the mechanical model in depth, finally we proposes
Hai Hu, Jun Gao, Peng Hu
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Digital elevation models and TIN algorithms
1997This survey has explained a number of concepts on terrains, and some algorithms for various computations. The emphasis has been on TIN algorithms, because the TIN model for terrains is more elegant than the grid and contour line models. A common argument to use grids is the simplicity of the algorithms.
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The “M” in digital elevation models
Cartography and Geographic Information Science, 2015The “M” in digital elevation models (DEM) stands for model, which literally means “a schematic description of a system, theory, or phenomenon that accounts for its known or inferred properties and may be used for further study of its characteristics.” A DEM fulfills the requirement of “a schematic description” of terrain.
XiaoHang Liu, Hai Hu, Peng Hu
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Geomorphometric processing of digital elevation models
Computers & Geosciences, 1987Abstract The general system of geomorphometry is composed of elevation, derivatives of elevation at a point, and moments of the distribution of elevation over some area. All of the point measures in this system can be obtained by computer processing of a digital elevation model (DEM), and they can be used as input to the analysis and classification ...
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Application of digital elevation model to volcanology.
2002Evaluation of morphological variation of Vulcano edifice using digital ...
ACHILLI, VLADIMIRO +4 more
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Understanding the effects of Digital Elevation Model resolution in urban fluvial flood modelling
Journal of Hydrology, 2021Manoranjan Muthusamy +2 more
exaly
Drainage Catchment Digital Elevation Models Flyer
Geoscience Australia has developed an automated mosaicking process which takes open elevation data available in the Elvis Elevation and Depth system (Elvis) and automatically combines it to produce a single Digital Elevation Model (DEM). This flyer provides information on the project.Commonwealth Of Australia (Geoscience Australia) +1 more
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