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23 Flood Early Warning Systems for Hydrological (Sub) Catchments

Part 2. Hydroinformatics

  1. Micha Guido Franciscus Werner,
  2. Jaap Schellekens,
  3. Jacob Cornelis Jan Kwadijk

Published Online: 15 APR 2006

DOI: 10.1002/0470848944.hsa022

Encyclopedia of Hydrological Sciences

Encyclopedia of Hydrological Sciences

How to Cite

Werner, M. G. F., Schellekens, J. and Kwadijk, J. C. J. 2006. Flood Early Warning Systems for Hydrological (Sub) Catchments. Encyclopedia of Hydrological Sciences. 2:23.

Author Information

  1. WL Delft Hydraulics, Delft, The Netherlands

Publication History

  1. Published Online: 15 APR 2006


Provision of early warning is an effective strategy in reducing flood damage and loss of life due to flooding. Flood forecasting and warning systems are important instruments in supporting relevant authorities issuing appropriate warnings. With the advent of computer-based simulation techniques, computer-based data processing capabilities, and computer-based communication facilities, the impact of hydroinformatics on flood forecasting in support of flood warning is manifest. In this article, an overview is given of flood forecasting systems for providing warnings in hydrological catchments. This overview is given from the perspective of the position of flood forecasting within the process of detection, forecasting, warning, and response. A categorization of flood forecasting systems is introduced, and the elements of a flood forecasting system are discussed.


  • flood early warning systems;
  • flood forecasting;
  • flood warning;
  • computer-based modeling;
  • hydrologic and hydraulic modeling systems;
  • real-time data acquisition;
  • data assimilation;
  • uncertainty analysis