Results 11 to 20 of about 383,988 (304)
Digital elevation model uncertainty and hazard analysis using a geophysical flow model [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 This paper describes a new methodology to quantify the variation in the output of a computational fluid dynamics model for block and ash flows, when the digital elevation model (DEM) of the terrain and other inputs are given as a range of possible values
Bursik, Marcus +4 more
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Challenges and Opportunities for UAV-Based Digital Elevation Model Generation for Flood-Risk Management: A Case of Princeville, North Carolina. [PDF]
Sensors (Basel), 2018 Hashemi-Beni L +4 more
europepmc +2 more sources
Visualization of a Digital Elevation Model
Data Science Journal, 2007 In recent years, Geographic Information Systems (GIS) have gradually changed from using the traditional 2D map expression to 3D visualization. The combination of visual techniques and GIS is a multi discipline, leading edge field, the development of ...
Linlin Lu, Huadong Guo
doaj +1 more source
A PHASED CREATION OF DIGITAL ELEVATION MODEL FOR HYDRODYNAMIC MODELING IN FLAT ZONES
Facta Universitatis. Series: Architecture and Civil Engineering, 2022 Hydrodynamic modeling of rivers with flood simulation requires an accurate description of the riverbed and inundation morphology. Depending on a geodetic survey method and data collected, the digital elevation models with different accuracy can be ...
Borko Radivojević +3 more
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Geographic Information Systems (GIS)-based spatially distributed model for runoff routing [PDF]
, 1999 A method is proposed for routing spatially distributed excess precipitation over a watershed to produce runoff at its outlet. The land surface is represented by a (raster) digital elevation model from which the stream network is derived.
Maidment, David, Olivera, Francisco
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Geografares, 2022 This study evaluated three orthophotos, generated from aerial surveys configured at 80 m, 100 m and 120 m in height with multirotor RPA, model Phantom 4 Pro from the company DJI coupled to Complementary Metal Oxide Semiconductor (CMOS) sensor of 1 inch ...
Agostinho Prado Alves Junior +1 more
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, 2020 Digital elevation models (DEMs) represents the elevation of the earth’s surface in the form of a digital image where each pixel contains an elevation value of the center point of the pixel. DEMs are a primary input to any modeling or process quantification involving the earth’s topography and ...
Louise Croneborg +4 more
openaire +3 more sources
Statistical representation of mountain shading [PDF]
, 2004 International audienceShadows cast by the mountains themselves have a strong influence on the surface energy balance of mountainous regions. If the influence of shadows is to be included on sub-grid scales in a surface energy balance model, a statistical
Essery, R
core +2 more sources
International Journal of Environment and Geoinformatics, 2019 Photogrammetry is a map production technique or science applied by measurements made from terrestrial images with terrestrial cameras or more commonly used images taken with airborne cameras.
Aydan Yaman +2 more
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Non-affine georectification to improve the topographic fidelity of legacy geologic maps
International Journal of Applied Earth Observations and Geoinformation, 2022 Field-based geologic maps, which are among the most valuable tools of communication among geoscientists, can be expensive and time-consuming to produce or manually revise.
Yichuan Zhu +2 more
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