Custom Terrain Models
Definition
Custom Terrain Models are user-defined digital representations of Earth's surface tailored for specific applications. Unlike standard DEMs, these models integrate varied data sources like field surveys, photogrammetry, UAVs, and CAD plans to produce highly detailed or context-specific elevation surfaces. They may represent altered terrain, proposed developments, or synthetic surfaces for simulations.
Application
Engineers use custom terrain models for accurate 3D designs of infrastructure like dams or mining pits. Environmental scientists create models showing post-restoration or climate-altered terrain. Military planners simulate terrain visibility and logistics routes. GIS tools allow interpolation, mesh building, and terrain smoothing to create realistic models. Models may include multiple layers—elevation, hydrology, soil type—integrated for multi-criteria analysis or visualization. Custom terrain models are used in VR/AR environments, cinematic visualization, and flood risk simulations.
FAQ
1. What makes a terrain model 'custom'?
It is created for a specific purpose using user-selected data sources, resolution, and processing techniques.
2. What makes a terrain model 'custom'?
They reflect specific project needs, offering greater precision and relevance than standard elevation models.
3. What makes a terrain model 'custom'?
By merging field data, remote sensing, CAD inputs, and interpolation tools to create accurate digital surfaces.
4. What makes a terrain model 'custom'?
In engineering, architecture, environmental modeling, military simulations, and visual storytelling.
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