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RISImprovement in the Use of an Operational Constellation of GPS Radio Occultation Receivers in Weather Forecasting
Publisher: American Meteorological Society
Abstract: As of May 2007, the National Centers for Environmental Prediction (NCEP) implemented a new Global Data Assimilation System. This system incorporated the assimilation of global positioning system (GPS) radio occultation ...
An Improved One-Dimensional Bending Angle Forward Operator for the Assimilation of Radio Occultation Profiles in the Lower Troposphere
Publisher: American Meteorological Society
Impact 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, ...
Operational Implementation of COSMIC Observations into NCEP’s Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: The next generation of NCEP?s Global Data Assimilation System became operational on 1 May 2007. This system incorporates the assimilation of global positioning system (GPS) radio occultation (RO) profiles from the Constellation ...
An Improved One-Dimensional Bending Angle Forward Operator for the Assimilation of Radio Occultation Profiles in the Lower Troposphere
Publisher: American Meteorological Society
Assessment of Radio Occultation Observations from the COSMIC-2 Mission with a Simplified Observing System Simulation Experiment Configuration
Publisher: American Meteorological Society
Abstract: AbstractThe mainstay of the global radio occultation (RO) system, the COSMIC constellation of six satellites launched in April 2006, is already past the end of its nominal lifetime and the number of soundings is rapidly ...
Impact of UAS Global Hawk Dropsonde Data on Tropical and Extratropical Cyclone Forecasts in 2016
Publisher: American Meteorological Society
Abstract: AbstractA preliminary investigation into the impact of dropsonde observations from the Global Hawk (GH) on tropical and extratropical forecasts is performed using the National Centers for Environmental Prediction (NCEP) ...
Improved Impacts in Observing System Simulation Experiments of Radio Occultation Observations as a Result of Model and Data Assimilation Changes
Publisher: American Meteorological Society
Three-Dimensional Variational Data Assimilation of Ground-Based GPS ZTD and Meteorological Observations during the 14 December 2001 Storm Event over the Western Mediterranean Sea
Publisher: American Meteorological Society
Abstract: The impact of GPS zenith total delay (ZTD) measurements on mesoscale weather forecasts is studied. GPS observations from a permanent European network are assimilated into the fifth-generation Pennsylvania State University?NCAR ...
Assimilation of Global Positioning System Radio Occultation Observations into NCEP’s Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission launched six small satellites in April 2006, each carrying a GPS radio occultation (RO) receiver. At final orbit, COSMIC will ...