ZABAGED® - altimetry - introduction
Altimetry data of the Land Survey Office provide information about space structures of the terrain relief or surface (incl. buildings and vegetation cover) of the Czech Republic, respectively. Recently Land Survey Office administers several altimetry data sets at different level of detail and accuracy.
Digital Terrain Model of the Czech Republic of the 5th generation (DMR 5G) represents the image of natural or man-modelled terrain in digital form as heights of discrete points in a triangulated irregular network (TIN) with total mean error of the height 0.18 m in an open terrain and 0.3 m in a forested terrain.
Digital Terrain Model of the Czech Republic of the 4th generation (DMR 4G) represents the image of natural or man-modelled terrain in digital form as heights of discrete points in a regular grid (5 x 5 m) with total mean error of the height 0.3 m in an open terrain and 1 m in a forested terrain.
DMR 5G contours were created by deriving from the product Digital Terrain Model of the Czech Republic of the 5th generation (DMR 5G). The content of the data set consists of 3 types of contour objects with a basic interval of 1 m and additional layers of slopes and contour description. All objects are represented by a three-dimensional vector spatial component.
INSPIRE dataset - Elevation (EL) represents the digital Digital Terrain Model of the Czech Republic – 4th generation (DMR 4G) in the form according to the relevant INSPIRE Directive.
Detailed information about the products can be found in the Technical Reports that describe technological procedures for processing of the products, accuracy parameters, supposed areas of exploitation and recommended rules for their use.
ZABAGED® - altimetry file datasets will be provided in selected formats by ATOM download services as open data from 01/07/2023, free of charge under the Creative Commons CC BY 4.0 license.
Another option for data distribution is the export of data slices in the Geoviewer application and WFS and ArcGIS REST services.
You can use the eshop application to order data in other formats and other forms of distribution.