The level of the susceptibility map is adapted to the municipality's general planning (municipal planning level). The maps indicate nothing about likelihood, and they cannot be used alone in zoning plan work or to assess development pursuant to the safety requirements in the technical building regulations.

The Norwegian Water Resources and Energy Directorate guidelines "Flaum- og skredfare i arealplanar" recommend a general procedure for assessing the risk of flooding in connection with spatial planning and development in areas where the risk of flooding is not mapped in greater detail.

If you use the susceptibility map as a basis for assessment when working on the municipal plan, you will have every chance of ending up with a plan for a changed climate in 2100 as regards the risk of flooding.

The Norwegian Water Resources and Energy Directorate accepts no liability for damage or injuries due to errors in data and incorrect use of data.

No conditions apply

The susceptibility map for flooding is produced on the basis of hydrological models based on experience from Norwegian watercourses and a digital terrain model. The susceptibility map shows which areas may potentially be susceptible to flooding.

The method used to produce the susceptibility map is discussed in Norwegian Water Resources and Energy Directorate Report no. 07/2011 "Preliminary flood risk assessment in Norway: an example of a methodology based on a GIS-approach" (chapter 6). The increase in the water level will usually be significantly overestimated when this method is used. Therefore, more detailed mapping will generally reduce the extent of the susceptibility area.

A correct level of detail is shown when the map is viewed on a scale of approx. 1:50,000.

fylkesvis, kommunevis, landsfiler

ISO19115

2003