Royal Netherlands Meteorological Institute

Royal Netherlands Meteorological Institute
Dutch: Koninklijk Nederlands Meteorologisch Instituut

KNMI headquarters in De Bilt
Agency overview
Formed 31 January 1854 (1854-01-31)
Headquarters De Bilt, Netherlands
Deputy Minister responsible
Parent department Ministry of Infrastructure and the Environment

The Royal Netherlands Meteorological Institute (Dutch: Koninklijk Nederlands Meteorologisch Instituut or KNMI, pronounced [ˈkoːnɪŋklək ˈneːdərˌlɑnts ˌmeteoroˈloːɣis ˌɪnstiˈtyt]) is the Dutch national weather forecasting service, which has its headquarters in De Bilt, in the province of Utrecht, Netherlands.

The primary tasks of KNMI are weather forecasting, monitoring of climate changes and monitoring seismic activity. KNMI is also the national research and information centre for climate, climate change and seismology.

Research at KNMI

Applied research at KNMI is focused on three areas:[1]

KNMI's development of atmospheric dispersion models

KNMI's applied research also encompasses the development and operational use of atmospheric dispersion models.[2][3]

Whenever a disaster occurs within Europe which causes the emission of toxic gases or radioactive material into the atmosphere, it is of utmost importance to quickly determine where the atmospheric plume of toxic material is being transported by the prevailing winds and other meteorological factors. At such times, KNMI activates a special calamity service. For this purpose, a group of seven meteorologists is constantly on call day or night. KNMI's role in supplying information during emergencies is included in municipal and provincial disaster management plans. Civil services, fire departments and the police can be provided with weather and other relevant information directly by the meteorologist on duty, through dedicated telephone connections.

KNMI has available two atmospheric dispersion models for use by their calamity service:

See also


  1. KNMI Research Programme, 2003-2007
  2. Turner, D.B. (1994). Workbook of atmospheric dispersion estimates: an introduction to dispersion modeling (2nd ed.). CRC Press. ISBN 1-56670-023-X.
  3. Beychok, Milton R. (2005). Fundamentals Of Stack Gas Dispersion (4th ed.). author-published. ISBN 0-9644588-0-2.
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