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Numerical Weather Prediction (NWP) models and Climate models require geographical datasets like the orographic height of the earth surface, the plant cover, the distribution of land and sea and, dependent on the schemes used, a variety of other external parameters. The EXTPAR software system (EXTPAR - ) package is able to generate external parameters for the models COSMO and ICON. The software can run on the UNIX or Linux system where the raw data is stored. Users (experienced users) can run the scripts to create new external parameters with their own specifications (e.g. the model domain).
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