Czech Hydrometeorological Institute

The Czech Hydrometeorological Institute (CHMI) (Czech: Český hydrometeorologický ústav (ČHMÚ)) is within the Environmental Ministry of the Czech Republic. The head office and centralized workplaces of the CHMI, including the data processing, telecommunication and technical services, are located at the Institute's own campus in Prague. The CHMI has five major divisions:[1]


The National Meteorological Institute was established in 1919 shortly after the Czechoslovak Republic was established at the end of World War I. On January 1, 1954, the National Meteorological Institute was united with the hydrology service and the Czech Hydrometeorological Institute was established. Its charter was amended in 1994 and in 1995 by the Ministry of the Environment of the Czech Republic.

Air pollution dispersion modelling activities

The Air Quality Protection division has seven departments:[2]

The work of the Modelling and Expertise Pool department is focused upon: the development of air pollution dispersion models; the application of such models in the preparation of expert reports and opinions; forecasts of air quality control; the processing of operating information on pollutant concentrations obtained by the Airborne Monitoring section.

The SYMOS97 air pollution dispersion model was developed at the CHMI. It models the dispersion of continuous, neutral or buoyant plumes from single or multiple point, area or line sources. It can handle complex terrain and it can also be used to simulate the dispersion of cooling tower plumes.[3]

See also


  1. Structure of CHMI's Air Quality Control Division
  2. The Model Documententation System (MDS) of the European Topic Centre on Air and Climate Change (part of the European Environment Agency)
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