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RISExtension of 3DVAR to 4DVAR: Implementation of 4DVAR at the Meteorological Service of Canada
Publisher: American Meteorological Society
Abstract: On 15 March 2005, the Meteorological Service of Canada (MSC) proceeded to the implementation of a four-dimensional variational data assimilation (4DVAR) system, which led to significant improvements in the quality of global ...
Impact of the Different Components of 4DVAR on the Global Forecast System of the Meteorological Service of Canada
Publisher: American Meteorological Society
Abstract: A four-dimensional variational data assimilation (4DVAR) scheme has recently been implemented in the medium-range weather forecast system of the Meteorological Service of Canada (MSC). The new scheme is now composed of ...
The THORPEX Observation Impact Intercomparison Experiment
Publisher: American Meteorological Society
Abstract: An experiment is being conducted to directly compare the impact of all assimilated observations on short-range forecast errors in different forecast systems using an adjoint-based technique. The technique allows detailed ...
The Canadian MC2: A Semi-Lagrangian, Semi-Implicit Wideband Atmospheric Model Suited for Finescale Process Studies and Simulation
Publisher: American Meteorological Society
Abstract: This paper attempts to document the developmental research and early mesoscale results of the new fully nonhydrostatic atmospheric model called MC2 (mesoscale compressible community). Its numerical scheme is the semi-implicit ...
The Stratospheric Extension of the Canadian Global Deterministic Medium-Range Weather Forecasting System and Its Impact on Tropospheric Forecasts
Publisher: American Meteorological Society
Abstract: new system that resolves the stratosphere was implemented for operational medium-range weather forecasts at the Canadian Meteorological Centre. The model lid was raised from 10 to 0.1 hPa, parameterization schemes for ...