Results 11 to 20 of about 695,725 (323)
Digital terrain model height estimation using support vector machine regression
South African Journal of Science, 2015 Digital terrain model interpolation is intrinsically a surface fitting problem, in which unknown heights H are estimated from known X-Y coordinates.
Onuwa Okwuashi, Christopher Ndehedehe
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INTEGRATION OF 3D OBJECTS AND TERRAIN FOR 3D MODELLING SUPPORTING THE DIGITAL TWIN [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 3D modelling of precincts and cities has significantly advanced in the last decades, as we move towards the concept of the Digital Twin. Many 3D city models have been created but a large portion of them neglect representing terrain and buildings ...
J. Yan +4 more
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Digital Terrain Model Geospatial Modelling [PDF]
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The modelling means the world object cognition based on the analogy. This analogy presents an idea and material imitation of some properties of the existing world. It is processed by various anthropogenic objects, in which the chosen properties are presented, defined and characterised as shapes and relations of original objects.
Robert Sasik +2 more
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DeltaDTM: A global coastal digital terrain model
Scientific DataCoastal elevation data are essential for a wide variety of applications, such as coastal management, flood modelling, and adaptation planning. Low-lying coastal areas (found below 10 m +Mean Sea Level (MSL)) are at risk of future extreme water levels ...
Maarten Pronk +8 more
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Digital terrain analysis of the Haute-Mentue catchment an scale effect for hydrological modelling with TOPMODEL [PDF]
Hydrology and Earth System Sciences, 2000 It is widely recognised that topography plays an important role in the generation of runoff. The scale of a digital elevation model has been found to have some impacts on the results of hydrological modelling in several studies.
C. Higy, C. Higy, A. Musy
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The assessment of the capacity of the existing detention reservoir – Lubina [PDF]
MATEC Web of Conferences, 2023 The presented article describes the assessment of the capacity of the existing detention reservoir with an alternative proposal for raising the dam and constructing an emergency spillway. The subject of the investigation was the capacity of the river bed
Mydla Jakub
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Multiscale analysis of surface roughness for the improvement of natural hazard modelling [PDF]
Natural Hazards and Earth System Sciences, 2021 Surface roughness influences the release of avalanches and the dynamics of rockfall, avalanches and debris flow, but it is often not objectively implemented in natural hazard modelling.
N. Brožová +8 more
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TERRA: Terrain Extraction from elevation Rasters through Repetitive Anisotropic filtering
International Journal of Applied Earth Observations and Geoinformation, 2020 Over the past decades, several filters have been developed to derive a Digital Terrain Model (DTM) from a Digital Surface Model (DSM), by means of filtering out aboveground objects such as vegetation.
Anton Pijl +5 more
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BARE-EARTH EXTRACTION AND DTM GENERATION FROM PHOTOGRAMMETRIC POINT CLOUDS WITH A PARTIAL USE OF AN EXISTING LOWER RESOLUTION DTM [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 A method of extracting bare-earth points from photogrammetric point clouds by partially using an existing lower resolution digital terrain model (DTM) is presented. The bare-earth points are extracted based on a threshold defined by local slope.
M. Debella-Gilo
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Remote Sensing, 2020 Accurate topographic mapping is a critical task for various environmental applications because elevation affects hydrodynamics and vegetation distributions.
Jiaming Na +6 more
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