Neo-Aquitain Occupancy Reference (OCS) at Grande Ecale 2020, ‘2015’, ‘2009’, ‘2000’

Within the framework of PIGMA, a large-scale neo-Aquitan land use benchmark is produced (New Aquitaine Regional OCS). This is a fine description of the territory whose production method is based on photo-interpretation. Production started in 2010 and currently covers all the departments of the region with the 2020 vintages, ‘2015’, ‘2009’ and the departments 24-Dordogne, 33-Gironde, 40-Landes, 47-Lot-et-Garonne and 64-Pyrénées-Atlantiques also with the vintage ‘2000’. As it stands, the production of this benchmark and its updates is supported by the New Aquitaine Region, Europe (FEDER) and the ATGeRi IPTF. During the previous stages of production, this project had also benefited from funding from the State, GIP Littoral and the Departments of Dordogne, Landes, Lot and Garonne, Pyrenees-Atlantiques, as well as an input of data and engineering from the IGN. A combined nomenclature at 4 levels and 64 posts has been defined. The nomenclature of the regional SCO is a hierarchical classification with a tree structure. It makes it possible to qualify the elements of land cover on 4 hierarchical levels, 3 of which are based on Corine Land Cover. This nomenclature has been adapted to the territory of New Aquitaine, respecting the needs communicated by partners and local actors. Minor changes and improvements were made to the nomenclature during the production of the SCO 2020 and is now considered version 2 of the regional nomenclature (V2). Regional land cover data can be downloaded via the PIGMA platform either for free access by filling out a form or on the FTP (accessible to PIGMA partners). The project to create a historic vintage ‘1985’ covering the coast of New Aquitaine was initiated by the GIP Littoral. This production is compatible with regional production and is also available for download via the PIGMA platform.