1D Hydrodynamic models

Development of a water level model

To build a one dimensional flow model initially basic data are to be collected. Basically, preliminary considerations to the challenge and the goal of the modelling have always to be put in front of any data acquisition.

The structure of a classic 1D model runs in five steps: 

            1) Gathering all the input data.

            2) Configuration of the 1D model.

            3) Calibration of the 1D model.

            4) Calculation/ Simulation for the design flood or other scenarios.

            5) Evaluation and monitoring of the results.


At the gathering of all the input data it can be reverted to cards, literature, surveys and measurements.

  • Number, location and extent of the profiles to be recorded
  • Recording of the profile geometry
  • Location and level data of inflows / outflows
  • Grain size and structure of the river bed
  • Structure and use of the floodplain
  • Embankments, shore grouting and specialties
  • Vegetation density, vegetation height, vegetation type and vegetation distance on the floodplain
  • Gauge data of HQ, NQ and MQ events with associated water levels
  • Geometry, location and characteristics of bridges, culverts and weirs

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Hydrodynamics of Floods






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