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RISVariational Assimilation of SSM/I Total Precipitable Water Retrievals in the CMC Analysis System
Publisher: American Meteorological Society
Abstract: The impact of assimilating Special Sensor Microwave/Imager (SSM/I) total precipitable water (TPW) on the Canadian Meteorological Centre (CMC) operational analyses and forecasts is evaluated. Assimilation cycles were performed ...
Variational Retrievals Using SSM/I and SSM/T-2 Brightness Temperatures in Clear and Cloudy Situations
Publisher: American Meteorological Society
Abstract: The direct assimilation of brightness temperatures (Tb?s) from the Defense Meteorological Satellite Program Special Sensor Microwave Imager (SSM/I) and Special Sensor Microwave Water Vapor Profiler (SSM/T-2) in a one-dimensional ...
One-Dimensional Variational Retrievals from SSMIS-Simulated Observations
Publisher: American Meteorological Society
Abstract: Retrievals using synthetic background fields and observations for the Special Sensor Microwave Imager Sounder (SSMIS) instrument are performed using a one-dimensional variational data assimilation (1DVAR) scheme for clear ...
Impact of the Assimilation of CHAMP Refractivity Profiles on Environment Canada Global Forecasts
Publisher: American Meteorological Society
Abstract: The data assimilation system of Environment Canada (EC) is adapted to accept GPS radio occultation (GPSRO) data. Observations of this type are available with extensive coverage from several satellites. In this study, ...
Evaluation of GPS Precipitable Water over Canada and the IGS Network
Publisher: American Meteorological Society
Abstract: Precipitable water (PW) derived from the GPS zenith tropospheric delay (ZTD) is evaluated (as a first step toward variational data assimilation) through comparison with that of collocated radiosondes (RS_PW), operational ...