Current Height file Netherlands (AHN) DTM
Description
The Current Height File Netherlands DTM (AHN) is the digital height map for the entire Netherlands of ground level without objects such as buildings or trees. The AHN raster files have a resolution of 0.5 meters. It contains detailed and precise height data determined with a minimum of 10 height measurements per square meter. The height is measured with laser altimetry: a technique in which a plane with a laser beam scans the Earth’s surface. Of the measured heights (points), 3D point clouds and grids are made. Ahn is a collaboration of the provinces, government and water boards. The height file AHN4 DTM ground level grid is the grid manufactured by classifying points as “ground level” and converting them to a grid based on a Squared IDW method. No further operations have been carried out. Points that are omitted are objects such as trees, buildings, bridges, water and other objects. The current AHN is version 4, this version has been obtained over the years 2020, 2021 and 2022. For more information on the AHN see https://ahn.nl/ahn-4.
Resources
| Name |
Format |
Description |
Link |
|
0 |
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https://service.pdok.nl/rws/ahn/wms/v1_0?SERVICE=WMS&request=GetCapabilities&version=1.3.0 |
|
0 |
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https://service.pdok.nl/rws/ahn/wcs/v1_0?SERVICE=WCS&request=GetCapabilities&version=2.0.1 |
Tags
- laseraltimetrie
- maaiveld
- lidar
- dtm