[OSM-talk] [OSM-talk-nl] Dutch Cadastre released all topo vector, raster and toponym data under CC-BY

Jukka Rahkonen jukka.rahkonen at latuviitta.fi
Wed Jan 4 23:07:23 GMT 2012

Stefan de Konink <stefan <at> konink.de> writes:

> OpenStreetMap NL was in Dutch news today being one of the first
> receivers of the TOP10nl dataset of the Dutch Cadastre. Since 1-1-2012
> the Cadastre releases its data under the CC-BY license, they even take
> contributions back.
> The data itself is in the highest precision usable between scales
> 1:5000 and 1:25000. TOP10NL is gathered from aerial photography,
> digital measurements in the field and existing data.
> We already contacted what would be their 'ideal' contribution form,
> going beyond a simple email contribution with "this object is wrong".

The National Land Survey of Finland will also publish whole lot of data (raster
maps, aerial images, laser scanning data and the whole topographic database in
vector format) with attribution-only licence in May 2012. I have been working
with the vector database and I know it has nearly 500 thematic layers and it
takes around 10 gigabytes in zipped shapefiles. It is at least 50 times more
than we have now in OSM. I can't yet imagine what it will mean for the OSM
project in Finland. 

-Jukka Rahkonen-

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