Hello everyone,
I’m looking for building contours for Saxony-Anhalt (3 Landkreise) to calculate the PV potential.
There’re data sources such as the official contours (“Hausumringe”) [1] and the digital landscape model BasisDLM [2] but none of these data are open.
Possible solutions I see:
- Buildings from OpenStreetMap: Great, but the coverage, especially in rural areas, is quite poor
- Extraction by color using WMS services from public raster maps, e.g.
2a) TopPlusOpen [3] (German BKG)
Works well, since buildings feature a defined color, but many buildings are missing here:
2b) WebAtlasDE [4] (vom BKG):
Apparently all buildings are included but it doesn’t work well as there’re overlain by captions and the color is not unique:
Do you have ideas/different approaches?
Do you know where to find appropriate maps/data sources that allow to implement the solution in 2)?
Best,
Jonathan
[1] https://www.lvermgeo.sachsen-anhalt.de/de/hausumringe.html
[2] https://www.gfds.sachsen-anhalt.de/ows/de/basis-dlm-lsa/basis-dlm-digitales-basis-landschaftsmodell.html
[3] http://www.geodatenzentrum.de/geodaten/gdz_rahmen.gdz_div?gdz_spr=deu&gdz_akt_zeile=5&gdz_anz_zeile=1&gdz_unt_zeile=41&gdz_user_id=0
[4] http://www.geodatenzentrum.de/geodaten/gdz_rahmen.gdz_div?gdz_spr=deu&gdz_akt_zeile=4&gdz_anz_zeile=4&gdz_unt_zeile=0&gdz_user_id=0