1. 33
  2. Flood

Flood

Precautionary principle

Updated on 26/10/2022
Définition
Sens technique
Usually refers to caution in action. More specifically it is a constitutional principle, included in the Environmental Charter (Article 5): "When the occurrence of any damage, although uncertain in current scientific knowledge, may be so serious and irreversible for the environment, public authorities shall, by application of the precautionary principle and in their areas of responsibilities, develop procedures for risk assessment and take provisional and proportionate measures to preclude the occurrence of the damage".
Source
According to the Ministry for the Environment and OFB

Flood forecasting

Updated on 26/10/2022
Définition
Sens technique
Analysis aiming to determine the expected flood characteristics: flow, level, time of onset and duration of these floods at different sites in the drainage basin. Modelling is used for this purpose. The forecasts are based on series of statistical analyses of historical floods and on the knowledge of flood storage areas.
Source
According to the Ministry for the Environment and OFB

Risk Exposure Plan

Updated on 26/10/2022
Définition
Sens technique
Plan for delimiting, at municipal or inter-municipal level, areas exposed to predictable natural hazards such as earthquakes, floods, avalanches or ground movements. The Risk Exposure Plan (REP) sets out the appropriate measures to prevent
Source
According to the Ministry for the Environment and OFB

Vulnerability

Updated on 13/07/2018
Définition
Sens technique
Fragility and susceptibility when facing a given hazard or a given pressure.
Source
According to SOeS

Flood-prone areas plan

Updated on 13/07/2018
Définition
Sens technique
Document that establishes a public easement affecting land use. It allows the administration to oppose any action or work likely to impede the free flow of water or the conservation or floodplains.
Source
According to the Ministry for the Environment

Hazard

Updated on 19/06/2018
Définition
Sens commun
Nature, occurrence, intensity and duration of a threatening phenomenon.
Source
According to SOeS

Area for flood storage purpose

Updated on 13/07/2018
Définition
Sens technique

Natural or agricultural floodplain (not currently urbanized), that can be extended to floods whose occurrence is higher than the hundred-year flood, as part of a hydrogeomorphical approach. When local stakes require it (level of hazards, areas considered important, etc), floodplains, which, at the date of approval of the river basin management plan (SDAGE), are classified "to be urbanized" but are not yet highly urbanized, may be considered, for their part not yet urbanized, as areas for flood storage purpose.

Source
According to Rhine-Meuse Water Agency