A test of numerical instability and stiffness in the parametrizations of the ARPÉGE and ALADIN models

Meteorological numerical weather prediction (NWP) models solve a system of partial differential equations in time and space. Semi-lagrangian advection schemes allow for long time steps. These longer time steps can result in instabilities occurring in the model physics. A system of differential equat...

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Bibliographic Details
Main Author: M. Tudor
Format: Article
Language:English
Published: Copernicus Publications 2013-07-01
Series:Geoscientific Model Development
Online Access:http://www.geosci-model-dev.net/6/901/2013/gmd-6-901-2013.pdf