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RISA Class of Semi-Lagrangian Integrated-Mass (SLM) Numerical Transport Algorithms
Publisher: American Meteorological Society
Abstract: A class of conservative numerical transport algorithms is developed based on the concept of Lagrangian mass transport between fixed cells in which density distribution is estimated on the basis of local and adjacent gridpoint ...
The Utility of Upper-Boundary Nesting in NWP
Publisher: American Meteorological Society
Abstract: he importance of stratospheric influences for medium-range numerical weather prediction (NWP) of the troposphere has led to increases in the heights of global model domains at operational centers around the world. Grids ...
Wintertime Subkilometer Numerical Forecasts of Near-Surface Variables in the Canadian Rocky Mountains
Publisher: American Meteorological Society
Abstract: umerical weather prediction (NWP) systems operational at many national centers are nowadays used at the kilometer scale. The next generation of NWP models will provide forecasts at the subkilometer scale. Large impacts are ...
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 ...
On the Progressive Attenuation of Finescale Orography Contributions to the Vertical Coordinate Surfaces within a Terrain-Following Coordinate System
Publisher: American Meteorological Society
Abstract: A modified hybrid terrain-following vertical coordinate has recently been implemented within the Global Environmental Multiscale atmospheric model that introduces separately controlled height-dependent progressive decaying ...
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 ...