[BOUNDARY ERRATA] DEU ADM1

[SvenVw]

Describe the Error
The boundaries for DEU ADM1 seem to be not very accurate. The offset is for some cases > 2km compared with with ADM2 and other sources. It looks therefore that the scale of the source data used for ADM1 is not detailed enough.

Screenshots
Comparison between ADM1 (red), ADM2 (green) and OSM (Location: 10.50601,51.68217):

Additional context
An improvement can be to use the dataset from the German government: https://gdz.bkg.bund.de/index.php/default/digitale-geodaten/verwaltungsgebiete/nuts-gebiete-1-250-000-stand-31-12-nuts250-31-12.html. The download link is: https://daten.gdz.bkg.bund.de/produkte/vg/nuts250_1231/aktuell/nuts250_12-31.gk3.shape.zip
The license looks permissive: https://www.govdata.de/dl-de/by-2-0

[DanRunfola]

Thank you!

That license does look like we could use it - at least very similar to CC-BY.

@lydiatroup @dfornatora could one of you grab this? I'm working on the gb 5 code revisions now :)

[lydiatroup]

We have used this license previously. I will assign someone to this issue to update our Germany ADM1 to use this source. Thank you for the suggestion!

[DanRunfola]

@all-contributors add @SvenVw to ideas

[allcontributors]

@DanRunfola

I've put up a pull request to add @SvenVw! 🎉