Flood zones. SNCZI return periods

Areas delimited as Flood Zones corresponding to the scenarios of high probability of flooding (return period 10 years), average (100-year return period) and low (500-year return period) in the area of the Autonomous Community of Navarre, incorporated in the National System of Cartography of Unflooded Areas (SNCZI) in accordance with Royal Decree 903/2010. These have been prepared by the Ebro and Cantabrian Hydrographic Confederations with the collaboration of the Autonomous Communities and the coordination of the national flood group and updated in the 2nd cycle of application of the European Flood Directive. In the case of the Ebro Hydrographic Demarcation, in addition to the return periods required by the regulations (10, 100 and 500 years), the flood zone corresponding to the return period 50 years is included.