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RISOptimization of a Direct Elliptic Boundary Value Problem Solver by the Combined Use of Symmetry and Strassen's Algorithm
Publisher: American Meteorological Society
Abstract: A direct elliptic boundary value problem solver used for meteorological applications has been optimized. The problem to be solved is symmetric under a parity operation, and this is preserved by discretization. Therefore ...
Application of the Semi-Lagrangian Inherently Conserving and Efficient (SLICE) Transport Method to Divergent Flows on a C Grid
Publisher: American Meteorological Society
Abstract: Local conservation with the Semi-Lagrangian Inherently Conserving and Efficient (SLICE) transport method with a new trajectory algorithm is studied. Validation results of 1D and 2D passive advection with this new algorithm, ...
A New Dynamical Core of the Global Environmental Multiscale (GEM) Model with a Height-Based Terrain-Following Vertical Coordinate
Publisher: American Meteorological Society
Abstract: AbstractA new dynamical core of Environment and Climate Change Canada?s Global Environmental Multiscale (GEM) atmospheric model is presented. Unlike the existing log-hydrostatic-pressure-type terrain-following vertical ...
Implementation of a Semi-Lagrangian Fully Implicit Time Integration of the Unified Soundproof System of Equations for Numerical Weather Prediction
Publisher: American Meteorological Society
Semi-Lagrangian Advection of Stratospheric Ozone on a Yin–Yang Grid System
Publisher: American Meteorological Society
Abstract: he lack of formal mass conservation that is inherent to the standard semi-Lagrangian transport scheme represents a significant model limitation that needs to be addressed. The magnitude of this impact depends on the nature ...
Reducing a Tropical Cyclone Weak-Intensity Bias in a Global Numerical Weather Prediction System
Publisher: American Meteorological Society
Staggered Vertical Discretization of the Canadian Environmental Multiscale (GEM) Model Using a Coordinate of the Log-Hydrostatic-Pressure Type
Publisher: American Meteorological Society
Abstract: he Global Environmental Multiscale (GEM) model is the Canadian atmospheric model used for meteorological forecasting at all scales. A limited-area version now also exists. It is a gridpoint model with an implicit semi-Lagrangian ...