Automatic Thermal Forecast from the Swedish HIRLAM

Bernt Olofsson, Esbjörn Olsson


Thermal forecasts for glider pilots are produced automatically from the operational numerical weather prediction High-Resolution Limited-Area Model (HIRLAM) in Sweden.  Some extra algorithms are used in the postprocessing to calculate the thermal height and mean rate of climb from the forecast temperature profile at every gridpoint.  The forecast is visualized in two different charts containing all necessary weather information.  It is distributed via internet and is a good and cost effective tool for the pilots´ planning their soaring activity.


Meteorology, Atmospheric Physics

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