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| Service de Prévision des Crues | |
|---|---|
| Name | Service de Prévision des Crues |
Service de Prévision des Crues is a French hydrometeorological flood forecasting service that issues warnings, conducts river monitoring and models flood risks for river basins in France, Europe, and occasionally in international contexts such as the Méditerranée and Bassin du Rhône. It operates at the interface of agencies like Météo-France, Direction générale de la prévention des risques, Ministère de la Transition écologique et solidaire and local bodies including Conseil départemental authorities and Préfecture de région offices. The service supports emergency responders such as Sécurité civile, Service départemental d'incendie et de secours, and municipal authorities during episodes linked to systems like the Vigicrues network.
The Service de Prévision des Crues functions as an operational branch coordinating hydrological forecasting, real-time monitoring, and alert dissemination for rivers including the Seine, Loire, Garonne, Rhone, Meuse, Moselle, Vienne, and smaller basins such as the Ardèche and Durance. It interfaces with national institutions like Observation, Impacts, Recherche, Prévision de la sécheresse programs, European frameworks such as the European Flood Awareness System, and transboundary commissions exemplified by the Commission internationale pour la protection du Rhin and the Alpine Convention. Its outputs inform stakeholders like EDF, Réseau de Transport d'Électricité, water agencies like Agence de l'eau Seine-Normandie, local mayors, and cultural heritage managers at sites like Mont-Saint-Michel.
The origins trace to 19th-century initiatives following catastrophic floods of the Seine flood of 1910 and the Lyon floods, formalized through successive laws and decrees including reforms after events that impacted institutions such as Compagnie nationale du Rhône and Société nationale d'assainissement. Post‑World War II reconstruction and advances in hydrology led to collaborations with research centers like CNRS, IRSTEA (now INRAE), and academic departments at Université Grenoble Alpes and Sorbonne Université. European integration and directives, for example the European Union Floods Directive, accelerated harmonization with agencies such as European Environment Agency and prompted bilateral agreements with neighbors like Belgium and Switzerland.
Organizationally the service is linked operationally to Météo-France forecasting units, administratively to regional prefectures and to basin organizations like Agence de l'eau Rhône-Méditerranée Corse. Core missions include short-term flood forecasting, river flow monitoring, impact assessment for infrastructures managed by SNCF, Autoroutes, and Ports de France, and coordination with emergency services such as Police nationale and Gendarmerie nationale. It also supports international humanitarian actors including Croix-Rouge française and technical bodies like Centre opérationnel de gestion interministérielle des crises.
Forecasting uses hydrometeorological models from research institutes like Météo-France, ENM, École des Ponts ParisTech, and computational platforms such as Copernicus and HPC clusters provided by entities like GENCI. Models include rainfall‑runoff schemes implemented by teams at IRSN, statistical packages maintained by INSEE for historical analysis, and ensemble forecasting methods developed with partners such as ECMWF and DLR. The service integrates satellite products from Sentinel missions, radar from Météo-France and ANFR, and uses GIS solutions from vendors and academic groups at Institut géographique national.
Data streams derive from gauging stations managed by Vigicrues, automated hydrological stations from ONEMA (now within OFIMER structures), rain gauges of Météorage, and snowpack measurements by Météo-France mountain services. Additional inputs include soil moisture networks at INRAE experimental sites, water quality monitoring by Agence française pour la biodiversité, and telemetry from infrastructure operators such as Voies navigables de France and EDF Hydro. International data exchanges occur via Global Runoff Data Centre and river commissions like International Commission for the Protection of the Rhine.
Alert levels follow national scales coordinated with Vigicrues color codes and ministerial protocols overseen by Ministère de l'Intérieur and Direction générale de la prévention des risques. Protocols define roles for Préfet de département, municipal mayors, Service départemental d'incendie et de secours, and civil protection units during activation phases linked to legislation such as national disaster decrees. Communication uses multi-channel systems connecting Météo-France bulletins, official platforms like FR-Alert equivalents, and interoperability with European mechanisms such as the EU Civil Protection Mechanism.
Notable interventions include responses to the Seine flood of 1910 (historical legacy influencing doctrine), the Paris floods, the 1999 Lothar and Martin storms impacts on river levels, the 2010 Var floods, and major basin events on the Rhone and Loire where coordination with entities like EDF, Compagnie Nationale du Rhône, Syndicat mixte authorities and Conseil régional offices was required. Internationally, the service has contributed expertise during floods affecting Italy, Spain, and Belgium under frameworks linking European Commission civil protection units.
Research partnerships involve CNRS, INRAE, École normale supérieure, École Polytechnique, and European projects under Horizon 2020 and Horizon Europe. Training programs are delivered with institutions such as École nationale des ponts et chaussées, École nationale supérieure des techniques industrielles et des mines, and regional universities, while collaborative networks include International Association of Hydrological Sciences, World Meteorological Organization, and the European Flood Awareness System. Partnerships extend to private sector firms in hydrology, cartography, and emergency communications, and to NGOs like Secours populaire for community resilience initiatives.
Category:Flood control in France Category:Hydrology institutions