Results 11 to 20 of about 704,317 (311)

INTEGRATION OF 3D OBJECTS AND TERRAIN FOR 3D MODELLING SUPPORTING THE DIGITAL TWIN [PDF]

open access: yesISPRS 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
doaj   +2 more sources

The digital terrain model in the computational modelling of the flow over the Perdigão site: the appropriate grid size [PDF]

open access: yesWind Energy Science, 2020
The digital terrain model (DTM), the representation of earth's surface at regularly spaced intervals, is the first input in the computational modelling of atmospheric flows. The ability of computational meshes based on high- (2 m; airborne laser
J. M. L. M. Palma   +6 more
doaj   +2 more sources

Digital terrain model height estimation using support vector machine regression

open access: yesSouth 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
doaj   +2 more sources

DeltaDTM: A global coastal digital terrain model

open access: yesScientific Data
Coastal 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
doaj   +2 more sources

Digital terrain analysis of the Haute-Mentue catchment an scale effect for hydrological modelling with TOPMODEL [PDF]

open access: yesHydrology 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
doaj   +2 more sources

A critical comparison of interpolation techniques for digital terrain modelling in mining

open access: yesJournal of the Southern African Institute of Mining and Metallurgy, 2023
Digital modelling of a surface is crucial for Earth science and mining applications for many reasons. These days, high-tech digital representations are used to produce a high-fidelity topographic surface in the form of a digital terrain model (DTM). DTMs
M. A. Razas   +4 more
semanticscholar   +1 more source

Viewshed simulation and optimization for digital terrain modelling with terrestrial laser scanning

open access: yes, 2020
The main objective of this study is the development of a simulation and optimization method for wide-area terrain mapping with terrestrial laser scanning (TLS).
M. Starek   +3 more
semanticscholar   +1 more source

BARE-EARTH EXTRACTION AND DTM GENERATION FROM PHOTOGRAMMETRIC POINT CLOUDS WITH A PARTIAL USE OF AN EXISTING LOWER RESOLUTION DTM [PDF]

open access: yesThe 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
doaj   +1 more source

UAV-Based Terrain Modeling under Vegetation in the Chinese Loess Plateau: A Deep Learning and Terrain Correction Ensemble Framework

open access: yesRemote Sensing, 2020
Accurate topographic mapping is a critical task for various environmental applications because elevation affects hydrodynamics and vegetation distributions.
Jiaming Na   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy