Threat and risk maps, propagation 50-year flow — display service

Propagation layer for 50-year flow/level in today’s climate corresponding to threat maps/risk maps for areas with significant flood risk according to the Flood Risk Ordinance (SFS 2009:956) 2018. For watercourses there is only a distribution layer for a demarcated area and not the entire watercourse. If an area is identified from watercourses and there is also a lake in the area, there are also threat maps/risk maps developed for these. The data set is the result of the revision of Stage 2 for cycle 2 (2019) under the Floods Directive, but also for stage 2 of cycle 1 (2013) is also included in the data set. For watercourses, a 2 dimensional hydraulic model has been used to develop the distribution. For Lake Vänern, Vättern and Lake Mälaren, an analysis of height has been used. Which cycle or threat map is in from is shown in the attribute table. More information on the Flood Risks Regulation can be found at: https://www.msb.se/sv/amnesomraden/skydd-mot-olyckor-och-farliga-amnen/naturolyckor-och-klimat/oversvamning/oversvamningsforordningens-tre-steg/