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RISAn Isentropic Mesoα-Scale Analysis System and Its Sensitivity to Aircraft and Surface Observations
Publisher: American Meteorological Society
Abstract: An objective analysis scheme for meteorological variables on constant potential temperature surfaces is presented. The analysis uses a form of multivariate statistical interpolation and is designed th retain mesoscale ...
Some Effects of Surface Heating and Topography on the Regional Severe Storm Environment. Part II: Two-Dimensional Idealized Experiments
Publisher: American Meteorological Society
Abstract: A series of two-dimensional (2-D) numerical experiments has been conducted to examine the effects of differential surface heating on flow over a dry, 2000 km-wide plateau. Two effects, found by Benjamin and Carlson in ...
A Comparison of Temperature and Wind Measurements from ACARS-Equipped Aircraft and Rawinsondes
Publisher: American Meteorological Society
Abstract: A comparison was made of temperature and wind observations reported by rawinsonde and Aircraft Communications, Addressing, and Reporting System (ACARS)-equipped commercial aircraft separated by less than 150 km in distance ...
Regional Weather Prediction with a Model Combining Terrain-following and Isentropic Coordinates. Part I: Model Description
Publisher: American Meteorological Society
Abstract: A short-range numerical prediction model, which is part of a real-time 3-h data assimilation and forecast system, is described. The distinguishing feature of the model is the use of terrain-following (σ) coordinate surfaces ...
Impact of Network Wind Profiler Data on a 3-h Data Assimilation System
Publisher: American Meteorological Society
Abstract: This paper examines the influence of data from the NOAA Wind Profiler Demonstration Network on a mesoscale data assimilation system. The Mesoscale Analysis and Prediction System is a 3-h intermittent data assimilation ...
Radiative Heating Rates for Saharan Dust
Publisher: American Meteorological Society
Abstract: A combined longwave and shortwave radiative transfer model was used to determine effects of Saharan dust on the radiative fluxes and heating/cooling rates in the atmosphere. Cases are treated for cloud-free and overcast ...
A System for the Hourly Assimilation of Surface Observations in Mountainous and Flat Terrain
Publisher: American Meteorological Society
Abstract: An assimilation system is presented that was designed to provide timely, detailed, and coherent analyses of surface data, even when the data are collected in rough terrain where station elevations differ widely and ...
Observation system experiments with the hourly-updating Rapid Refresh model using GSI hybrid ensemble/variational data assimilation
Publisher: American Meteorological Society
Abstract: set of observation system experiments (OSEs) over 3 seasons using the hourly-updated Rapid Refresh (RAP) numerical weather prediction (NWP) assimilation/forecast system identifies the importance of the various components ...
Comments on “A Comparison of Temperature and Wind Measurements from ACARS-Equipped Aircraft and Rawinsondes”
Publisher: American Meteorological Society
Some Effects of Surface Heating and Topography on the Regional Severe Storm Environment. Part I: Three-Dimensional Simulations
Publisher: American Meteorological Society
Abstract: Model experiments have isolated several effects of surface heating and topography which may act in concert to focus the potential for severe thunderstorms in certain areas downstream of dry elevated terrain. These effects ...