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Recommendations to conduct and assess model calculations for the validation of simulation models

Empfehlungen zur Durchführung und Bewertung von Simulationsrechnungen zur Modellvalidierung
: Resseler, H.; Schäfer, H.; Gampp, H.; Görlitz, G.; Klein, M.; Kloskowski, R.; Mani, J.; Moede, J.; Müller, M.; Sarafin, R.; Stein, B.; Winkler, R.

Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 48 (1996), No.1, pp.4-9
ISSN: 0027-7479
ISSN: 0521-2804
Journal Article
Fraunhofer IUCT ( IME) ()
crop-specific scenario; database; Datensammlung; Empfehlung; kulturspezifisches Szenarium; model calculation; pesticide leaching; Pflanzenschutzmittel; recommendation; simulation model; Simulationsmodell; Simulationsrechnung; validation; Validierung; Versickerung

The use of simulation models within the registration of pesticides has been steadily increasing over the past years. Tberefore, the models suitability for the intended field of use has to be thoroughly examined. Studies comparing model predictions with results from experiments are required for the "validation" of simulation models. The precision of the predictions and the range of validity of the tests performed have to be demonstrated at the end of the validation procedure. With this information, potential users of the model should be able to judge if the model is suitable for predictions in the intended field of use. This paper recommends procedures to conduct simulations for model validation. Modelling of pesticide leaching was taken as an example. Furthermore, a database for crop-specific standard scenarios is provided. Main aspects described in the recommendations are: Requirements for study design and quality of input data, instructions how to select values for input parameters a nd how to conduct simulations, assessment of the validation results.