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RISImpact of a Digital Filter as a Weak Constraint in MM5 4DVAR: An Observing System Simulation Experiment
Publisher: American Meteorological Society
Abstract: In this study, a digital filter is introduced into the fifth-generation Pennsylvania State University?National Center for Atmospheric Research Mesoscale Model (MM5) four-dimensional variational data assimilation (4DVAR) ...
Assimilation of GPS Radio Occultation Refractivity Data from CHAMP and SAC-C Missions over High Southern Latitudes with MM5 4DVAR
Publisher: American Meteorological Society
Abstract: In this study, the GPS radio occultation (RO) data from the Challenging Minisatellite Payload (CHAMP) and Satellite de Aplicaciones Cientificas-C (SAC-C) missions are assimilated. An updated version of the fifth-generation ...
An Impact Assessment of GPS Radio Occultation Data on Prediction of a Rapidly Developing Cyclone over the Southern Ocean
Publisher: American Meteorological Society
Abstract: he impact of global positioning system (GPS) radio occultation (RO) data on an intense synoptic-scale storm that occurred over the Southern Ocean in December 2007 is evaluated, and a synoptic explanation of the assessed ...
Two Overlooked Biases of the Advanced Research WRF (ARW) Model in Geopotential Height and Temperature
Publisher: American Meteorological Society
Abstract: he authors have discovered two sizeable biases in the Weather Research and Forecasting (WRF) model: a negative bias in geopotential and a warm bias in temperature, appearing both in the initial condition and the forecast. ...
Diagnosis of an Intense Atmospheric River Impacting the Pacific Northwest: Storm Summary and Offshore Vertical Structure Observed with COSMIC Satellite Retrievals
Publisher: American Meteorological Society
Abstract: This study uses the new satellite-based Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission to retrieve tropospheric profiles of temperature and moisture over the data-sparse eastern ...