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HIRLAM model

HIRLAMI suure ja väikese mudeli piirkond

Black border shows the area of the large model (ETA). Red border shows the area of the small model (ETB).

Visualisations of the models should not be interpreted as official forecast of national weather service of Estonia. Estonian national weather service forecasts are based on models, but are not identical to model output. Model output is available for wider audience with developmental and educational purposes. ETB model is development testbed for future. Thus, the possible occurrence of problems has to be taken into account.

Larger model ETA (Europe) is hydrostatic version of HIRLAM with horizontal resolution of 11 km. This is the main model of operational short range weather prognoses.

Small model ETB (Estonia) is a high resolution mesomodel with 3,3 km horizontal resolution. This model is meant for development and testing which includes also development of non-hydrostatic dynamical core. ETB is experimental model and thus “interesting” forecasts may easily occur.

HIRLAM is a joint scientific and development project of many European countries with the aim of creating, developing and using a quality numerical weather prediction software to serve the states and nations through their national weather services.