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RISToward an Objective Analysis of Rainfall Rate Combining Observations and Short-Term Forecast Model Estimates
Publisher: American Meteorological Society
Abstract: This study explores the feasibility of performing an objective analysis of instantaneous rain rate combining satellite estimates (and eventually other types of observations) with those from a numerical prediction model ...
A Technique for Assimilating SSM/I Observations of Marine Atmospheric Storms: Tests with ECMWF Analyses
Publisher: American Meteorological Society
Abstract: A variational analysis method to detect and correct displacement and amplification errors in short-range forecasts of a data assimilation system is developed and tested. Collectively these errors are termed distortion ...
Calibration and Alignment
Publisher: American Meteorological Society
Abstract: Discrepancies between estimates of rainfall from ground-based radar and satellite observing systems can be attributed to either calibration differences or to geolocation and sampling differences. These latter include ...
SeaWinds Validation: Effect of Rain as Observed by East Coast Radars
Publisher: American Meteorological Society
Abstract: To examine the accuracy of the SeaWinds scatterometer wind data and rain flags, and how this accuracy depends on ground-based radar-estimated rain rate, SeaWinds data, WSI NEXRAD precipitation rates, and selected Eta ...
On Differences in Radiosonde Humidity-Reporting Practices and Their Implications for Numerical Weather Prediction and Remote Sensing
Publisher: American Meteorological Society
Abstract: Radiosonde humidity distributions over the United States, Canada, and Europe are discussed. Striking dry-end and wet-end differences are caused by the lack of international standards in the transformation of relative ...
Multiple-Timescale Intercomparison of Two Radar Products and Rain Gauge Observations over the Arkansas–Red River Basin
Publisher: American Meteorological Society
Abstract: A detailed intercomparison was performed for the period January 1998?June 1999 of three different sets of rainfall observations over the watershed covered by the National Weather Service Arkansas?Red Basin River Forecast ...
Development and Application of a Visible–Infrared Rain Flag for Scatterometer Data
Publisher: American Meteorological Society
Abstract: The authors report on characteristics of a rain flag derived from collocation of visible and infrared image data with rain rates over the North Atlantic Ocean obtained from microwave imagery (SSM/I) during a 3-week period ...
Assessment of the Impact of Simulated Satellite Lidar Wind and Retrieved 183 GHz Water Vapor Observations on a Global Data Assimilation System
Publisher: American Meteorological Society
Abstract: A series of observing system simulation experiments (0SSEs) was conducted to assess the impacts on the Air Force Geophysics Laboratory (GL) global data assimilation system (GDAS) of a satellite Doppler wind lidar sounding ...
A Simulation Study of Satellite Emission Computed Tomography
Publisher: American Meteorological Society
Abstract: Satellite emission computed tomography retrieves the temperature of the atmosphere from radiances observed at multiple viewing angles and frequencies. To the extent that it provides independent information, the use of ...
Extending the Predictability of Hydrometeorological Flood Events Using Radar Rainfall Nowcasting
Publisher: American Meteorological Society
Abstract: The predictability of hydrometeorological flood events is investigated through the combined use of radar nowcasting and distributed hydrologic modeling. Nowcasting of radar-derived rainfall fields can extend the lead time ...