Retention areas flooding Brandenburg

Description

The flood events of recent years on the Oder and Elbe, which also affected the state of Brandenburg, showed that the timing of the flood wave was significantly shortened compared to previous events, which resulted in a higher amplitude, i.e. higher water levels. One of the main reasons for this is a drastic decline in natural retention areas, caused by increased near-surface water drainage in the catchment areas and by the reduction of natural floodplains near the river. Retention in the hydrological sense is the reduction, inhibition or delay of the drainage process. These processes can have a direct impact on the flood wave in the rivers and their floodplains (water retention) or can also control the formation of a flood wave in the catchment area (area retention). Measures to maintain and extend retention spaces on the river itself are the most effective method of mitigating the water level during flood runoff in a body of water, as the flood wave is deformed during its course in the river bed and in the floodplain by various retention mechanisms (Böhm et al. 1999). There are limits to technical flood protection (dikes, retention basins, dams), as retention basins are not arbitrarily large and dikes cannot always be built higher. (National Environment Agency 2003). Area retention, on the other hand, aims to reduce the outflow wave by preventing the water from flowing at the location of precipitation where possible or by delaying the outflow (Böhm et al. 1999). One goal of flood prevention must therefore be to prevent drain-increasing and drain-accelerating measures and to reverse or at least mitigate as far as possible any negative effects that have already occurred. This requires knowledge of suitable potential retention areas.

Resources

Name Format Description Link
0 http://www.geo.brandenburg.de/boden
0 https://inspire.brandenburg.de/services/bowassverh_wfs?REQUEST=GetCapabilities&SERVICE=WFS
0 http://www.geo.brandenburg.de/boden
0 https://inspire.brandenburg.de/services/bowassverh_wms?REQUEST=GetCapabilities&SERVICE=WMS
0 http://www.geo.brandenburg.de/boden
0 https://ogc-api.geobasis-bb.de/datasets/bowassverh

Tags

  • eisen-iii
  • geologie
  • bboxbebb
  • opendata
  • cobalt
  • quecksilber
  • chrom-iii
  • zink
  • boden
  • aluminium
  • bodenkunde
  • blei
  • kupfer
  • mangan
  • nickel
  • bodenschutz
  • cadmium
  • erdbeobachtung-und-umwelt

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  • REGI
  • ENVI
  • TECH

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