Kõrgusmall

Kõrgusmall, often translated as "height model" or "elevation model," is a digital representation of the topography of a geographical area. It is a type of raster data where each cell contains a value indicating the elevation at that specific location. This data can be derived from various sources, including aerial or satellite imagery, ground-based surveys, and LiDAR (Light Detection and Ranging) technology.

There are two primary types of kõrgusmall: Digital Elevation Models (DEMs) and Digital Surface Models (DSMs). A DEM typically represents the bare earth surface, excluding vegetation and buildings. In contrast, a DSM includes the elevation of all objects on the surface, such as trees and structures. The distinction is crucial for applications where understanding the natural terrain versus the overall surface is important.

Kõrgusmall data is fundamental in numerous geospatial applications. It is used for terrain analysis, including calculating slope, aspect, and curvature, which are vital for hydrology, geology, and urban planning. It plays a significant role in 3D modeling and visualization, enabling the creation of realistic representations of landscapes and cities. Furthermore, kõrgusmall is essential for tasks like flood modeling, landslide risk assessment, route planning for infrastructure projects, and even in the development of augmented reality experiences. The accuracy and resolution of the kõrgusmall directly impact the reliability and detail of these applications.