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RISImpact of Infrared, Microwave, and Radio Occultation Satellite Observations on Operational Numerical Weather Prediction
Publisher: American Meteorological Society
Abstract: comparison of the impact of infrared (IR), microwave (MW), and radio occultation (RO) observations on NCEP?s operational global forecast model over the month of March 2013 is presented. Analyses and forecasts with only IR, ...
A Statistical Estimate of Errors in the Calculation of Radio-Occultation Bending Angles Caused by a 2D Approximation of Ray Tracing and the Assumption of Spherical Symmetry of the Atmosphere
Publisher: American Meteorological Society
Abstract: Atmospheric data from National Centers for Environmental Prediction (NCEP) analyses and orbital parameters from 133 real Global Positioning System (GPS) meteorological data soundings are used to compute the ?true? bending ...
Radio Occultation Observations as Anchor Observations in Numerical Weather Prediction Models and Associated Reduction of Bias Corrections in Microwave and Infrared Satellite Observations
Publisher: American Meteorological Society
Abstract: atellite radiance measurements are used daily at numerical weather prediction (NWP) centers around the world, providing a significant positive impact on weather forecast skill. Owing to the existence of systematic errors, ...
Effect of Subjectively Enhancing the Initial Vorticity Field in a Short-Range Numerical Forecast
Publisher: American Meteorological Society
Abstract: A method of introducing subsynoptic-scale initial data into a six-level primitive equation model is presented. Vorticity perturbations on the scale of subsynoptic disturbances are added to the initial winds; the amplitudes ...
A GPS/MET Sounding through an Intense Upper-Level Front
Publisher: American Meteorological Society
Abstract: A Global Positioning System Meteorology (GPS/MET) proof-of-concept experiment became a reality on 3 April 1995. A small satellite carrying a modified GPS receiver was launched into earth orbit to demonstrate the feasibility ...
The COSMIC/FORMOSAT-3 Mission: Early Results
Publisher: American Meteorological Society
Abstract: The radio occultation (RO) technique, which makes use of radio signals transmitted by the global positioning system (GPS) satellites, has emerged as a powerful and relatively inexpensive approach for sounding the global ...