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Variational Implicit Normal-Mode Initialization for a Multilevel Model
Publisher: American Meteorological Society
Abstract: Recent studies have demonstrated that variational nonlinear normal-mode initialization can be efficiently implemented in the context of shallow-water models, provided one uses a physical space formulation. The implicit ...
Implicit Normal Mode Initialization for an Operational Regional Model
Publisher: American Meteorological Society
Abstract: In a previous study based on the shallow-water equations, it was shown that nonlinear normal mode initialization (NMI) can be implemented without knowing the normal modes of a model; this implicit form of nonlinear NMI is ...
Diabatic initialization of the Canadian Regional Finite-Element (RFE) Model Using Satellite Data. Part I: Methodology and Application to a Winter Storm
Publisher: American Meteorological Society
Abstract: The usefulness of numerical weather prediction models in very short-range forecasting is limited by the spinup problem, resulting in an underestimation of both the divergent wind component and the precipitation. To alleviate ...
A Variable-Resolution Semi-Lagrangian Finite-Element Global Model of the Shallow-Water Equations
Publisher: American Meteorological Society
Abstract: To meet the needs of short- and medium-range operational forecasting, the authors propose a unified strategy based on the use of a global variable-resolution model, run in two different configurations. These are as follows: ...
The Operational CMC–MRB Global Environmental Multiscale (GEM) Model. Part II: Results
Publisher: American Meteorological Society
Abstract: An integrated forecasting and data assimilation system has been and is continuing to be developed by the Meteorological Research Branch (MRB) in partnership with the Canadian Meteorological Centre (CMC) of Environment ...
The Operational CMC–MRB Global Environmental Multiscale (GEM) Model. Part I: Design Considerations and Formulation
Publisher: American Meteorological Society
Abstract: An integrated forecasting and data assimilation system has been and is continuing to be developed by the Meteorological Research Branch (MRB) in partnership with the Canadian Meteorological Centre (CMC) of Environment ...
The CMC–MRB Global Environmental Multiscale (GEM) Model. Part III: Nonhydrostatic Formulation
Publisher: American Meteorological Society
Abstract: An integrated forecasting and data assimilation system has been and is continuing to be developed by the Meteorological Research Branch (MRB) in partnership with the Canadian Meteorological Centre (CMC) of Environment ...
Medium-Range Quantitative Precipitation Forecasts from Canada’s New 33-km Deterministic Global Operational System
Publisher: American Meteorological Society
Abstract: The Meteorological Service of Canada (MSC) recently implemented a 33-km version of the Global Environmental Multiscale (GEM) model, with improved physics, for medium-range weather forecasts. Quantitative precipitation ...
Operational Wave Prediction System at Environment Canada: Going Global to Improve Regional Forecast Skill
Publisher: American Meteorological Society
Abstract: global deterministic wave prediction system (GDWPS) is used to improve regional forecasts of waves off the Canadian coastline and help support the practice of safe marine activities in Canadian waters. The wave model has ...
Impact of Coupling with an Ice–Ocean Model on Global Medium-Range NWP Forecast Skill
Publisher: American Meteorological Society
Abstract: AbstractThe importance of coupling between the atmosphere and the ocean for forecasting on time scales of hours to weeks has been demonstrated for a range of physical processes. Here, the authors evaluate the impact of an ...
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