Minimum elevations for building´s foundations on the Finnish coast
The Finnish Meteorological Institute has published the estimates for rarely occurring sea flood heights and recommendations for minimum elevations for foundations of the buildings on the Finnish coast in 2014.
The recommendations are based on an elevation where buildings would be exposed to sea flooding no more than once in the next 200 years.
The recommendations are based on the estimates of sea level rise, including projections from the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). In the Baltic Sea the rise is estimated to be slightly less than the global average. In addition, the land uplift resulting from the Ice Age protects the Finnish coast from rising sea levels. Along with the changes in mean sea level, the recommendations take into account the short-term variation in sea level caused by the weather conditions.
The recommendations have been calculated for the places of sea level observation stations, i.e. mareographs. They are also valid in the areas nearby. The calculations do not take into account the impact of the waves.
Minimum elevation of a foundation of a building recommended (N2000)
The previous recommendations for minimum elevations for foundations were given in 1998. These recommendations are largely the same, but they are given in the N2000 height system. The recommendations do not take into account waves. The impact of waves must be estimated locally.