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A test of numerical instability and stiffness in the parametrizations of the ARPEGE and ALADIN models
numerical instability stiffness
2014/12/12
Meteorological numerical weather prediction
(NWP) models solve a system of partial differential equations in time and space.
A preconditioning method for the finite element stiffness matrix is given in this paper. The triangulation is refined in a subregion; the preconditioning process is composed of resolution of two regul...