The CIGAL BdOCS is a set of data layers constituting a reference for land cover in Alsace.
It provides a state of play for 2000 and 2008 and 2011/2012. It also provides an observation of the evolution of changes between 2000 and 2008, as well as between 2008 and 2011/12.
This project covers the whole of Alsatian territory. The exploitation of the databases is foreseen in 1/10 000th.
The information layers were also generalised for exploitation in the 1/50 000th and 1/250 000ths.
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