FloodArea HPC 11

Welcome to the FloodArea User Guide!

Since the first release in 2001, more and more authorities, municipalities, engineering companies and research institutions in 20 countries on 5 continents have placed their trust in the high-end simulation and modeling tool FloodArea HPC 11.

FloodArea HPC 11 is a raster-based, hydrodynamic HN model. Besides various flood hazard map projects, large atlas projects (e.g. Rheinatlas, Oderatlas, Elbeatlas) and operational dike breach modelling, the model has been used in the field of heavy rainfall and decentralised flood protection for 20 years. The size of the area and the resolution are not limited by the model side. With the computers currently available at geomer, area sizes with up to 2 billion grid cells can be processed in a simulation.

What’s new?

We are continuously working on improving FloodArea HPC 11. The latest version (11.4) of 2022 contains the following innovations:

  • improved error handling and bugfixes

  • Output of volume balance and pumping curves

  • Multiple infiltration curves can be used simultaneously

The release of FloodArea HPC 11 in 2021 brings the following new features:

  • improved error detection

  • further optimisation of the computational performance through the latest gdal version

  • new calculation option: time-variable infiltration

  • revision of the animation tool, so that mp4-videos can now easily be created

The release of FloodArea HPC 11 in 2020 brings the following new features:

  • Optimized scaling of the computing performance over the processors

  • Optimization of the setting options and the design of the input data (only txt files, commenting on the data possible).

  • with FloodArea HPC 10.3, only in the toolbox was 64bit calculation possible, and in the standard graphical user interface (GUI) only as 32bit process. Now the GUI also starts FloodArea as 64bit process in background.

  • the three calculation options water level, inflow hydrograph and irrigation can be combined freely

  • bidirectional coupling with the sewer network model cePipe is possible

  • the roughness can be adjusted depending on the water level

  • simultaneous use of several precipitation hydrographs in the area

  • temporal variation of the discharge coefficients

  • time variable water level

  • the flow obstacle functions (consideration of flow obstacles by modifying the roughness)

    and dam breakthrough (inserts breakthroughs in the DGM) are no longer preserved in the newly developed FloodArea HPC 11. In practice, it has proven to be a good idea to manually insert breakthroughs into the DTM. Flow obstacles can be taken into account in the simulation by assigning a roughness of 10,000 kST to the corresponding areas.