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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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GMD | Articles | Volume 12, issue 1
Geosci. Model Dev., 12, 261-273, 2019
https://doi.org/10.5194/gmd-12-261-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Geosci. Model Dev., 12, 261-273, 2019
https://doi.org/10.5194/gmd-12-261-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Development and technical paper 16 Jan 2019

Development and technical paper | 16 Jan 2019

Independent perturbations for physics parametrization tendencies in a convection-permitting ensemble (pSPPT)

Clemens Wastl et al.
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Short summary
Ensemble forecasting at the convection-permitting scale (< 3 km) requires new methodologies in representing model uncertainties. In this paper a new stochastic scheme is proposed and tested in the complex terrain of the Alps. In this scheme the tendencies of the physical parametrizations are perturbed separately, which sustains a physically consistent relationship between the processes. This scheme increases the stability of the model and leads to improvements in the probabilistic performance.
Ensemble forecasting at the convection-permitting scale ( 3 km) requires new methodologies in...
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