Mapped drainage ditches in forested landscapes

This data contains 1607 km of manually digitized ditch channels from Sweden and high-resolution digital elevation models for the same areas. The data was digitized in 10 regions that were dominated by forests. Each region was selected to achieve a good representation of different landscape properties concerning topography, soil conditions, runoff, land use, and tree species. A compact laser-based system (Leica ALS80-HP-8236) was used to collect LiDAR data from an aircraft flying at 2888 -3000 m. The ALS point clouds have a last and only return density of 1-2 points m-2 and were divided into 55 tiles with the size of 2.5 x 2.5 km each and covering a total of 344 km2. DEMs with 0.5 m resolution were created from the LiDAR point clouds using a tin gridding approach implemented in Whitebox tools 1.4.0 (https://github.com/jblindsay/whitebox-tools).

The data were digitized in a collaboration between the Swedish university of agricultural sciences: https://www.slu.se/ and the Swedish Forest Agency: https://www.skogsstyrelsen.se/
ditchlines.zip contains vector lines of the digitized ditch channels.
vectorfiles.zip contains polygons where the ditches were digitized and the extent of the raster tiles.
rastertiles.zip contains raster tiles with a resolution of 0.5 m covering the same areas.