USING SPACE SURVEY MATERIALS FOR MODELING HYDRODYNAMIC ACCIDENTS AT MINING ENTERPRISES IN KAZAKHSTAN [PDF]
The timeliness of using modern computer programs for modelling flood zones, the consequences of hydraulic accidents, dam breakthroughs, flood and flood forecasting in a complex system of rivers and channels for the prevention of hydro meteorological ...
M. Ye. Rakhymberdina +3 more
doaj +1 more source
Optimizing 3D Urban Modelling: Integrating Land Lot and Building Footprint Geometries in Dual-Iteration Morphometric Algorithms [PDF]
The increasing demand for accurate 3D urban models is driven by rapid urbanization and the need for advanced geospatial tools in smart cities and digital twin applications.
S. A. F. Syed Abdul Rahman +8 more
doaj +1 more source
Comparative analysis of the differences between using LiDAR and contour-based DEMs for hydrological modeling of runoff generating debris flows in the Dolomites [PDF]
Present work aims to explore the differences in hydrological modeling when using digital elevation models (DEMs) generated by points from LiDAR surveys and those digitized on the contour lines of the regional technical map (RTM) and their relevance for ...
Bernard, Martino +2 more
core +2 more sources
HORAYZON v1.2: an efficient and flexible ray-tracing algorithm to compute horizon and sky view factor [PDF]
Terrain parameters like topographic horizon and sky view factor (SVF) are used in numerous fields and applications. In atmospheric and climate modelling, such parameters are utilised to parameterise the effect of terrain geometry on radiation exchanges ...
C. R. Steger, B. Steger, C. Schär
doaj +1 more source
Performance of a TV white space database with different terrain resolutions and propagation models [PDF]
Cognitive Radio has now become a realistic option for the solution of the spectrum scarcity problem in wireless communication. TV channels (the primary user) can be protected from secondary-user interference by accurate prediction of TV White Spaces ...
Alfahad, O. +3 more
core +3 more sources
DEVELOPING A STRATEGY FOR PRECISE 3D MODELLING OF LARGE-SCALE SCENES FOR VR [PDF]
In this work, we present a methodology for precise 3D modelling and multi-source geospatial data blending for the purposes of Virtual Reality immersive and interactive experiences.
A. El Saer +3 more
doaj +1 more source
Exploring multiple viewshed analysis using terrain features and optimisation techniques [PDF]
The calculation of viewsheds is a routine operation in geographic information systems and is used in a wide range of applications. Many of these involve the siting of features, such as radio masts, which are part of a network and yet the selection of ...
Kim, YH, Rana, S, Wise, S
core +2 more sources
ENHANCING THE RESOLUTION OF URBAN DIGITAL TERRAIN MODELS USING MOBILE MAPPING SYSTEMS [PDF]
Digital Terrain Models (DTMs) are essential surveying products for terrain based analyses, especially for overland flow modelling. Nowadays, many high resolution DTM products are generated by Airborne Laser Scanning (ALS).
Y. Feng, C. Brenner, M. Sester
doaj +1 more source
Airborne photogrammetry and LIDAR for DSM extraction and 3D change detection over an urban area : a comparative study [PDF]
A digital surface model (DSM) extracted from stereoscopic aerial images, acquired in March 2000, is compared with a DSM derived from airborne light detection and ranging (lidar) data collected in July 2009.
De Maeyer, Philippe +4 more
core +1 more source
Perfection of technology in compiling the optimal digital terrain model
The article analyses digital terrain model accuracy dependence on both the terrain type and selected method for surface modeling. The authors suggest the technique to be able to split the surface into different categories of the terrain.
Algirdas Kumetaitis +1 more
doaj +1 more source

