Hydrographic sub-sector

Updated on 26/10/2022
Sens technique
Part of a hydrographic sector and the third order of the hydrographic division of the French territory. This hydrographic division indeed includes all four parts of the French territory hierarchized according to increasing hydrographic areas: Hydrographic Region (1st order), hydrographic Sector (2nd order), hydrographic Sub-sector (3rd order), hydrographic area (4th order). A sector is divided into a maximum of 10 sub-sectors and a sub-sector is cut into a maximum of 10 hydrographic areas.
According to OFB and IOWater
Thématiques associées
Termes associés à des définitions du Sandre
Review status
Soumis au comité de relecture.