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RISAssimilation of Scalar Versus Horizontal Gradient Information from the VAS into a Mesoscale Model
Publisher: American Meteorological Society
Abstract: Comparisons are made between analyses and forecasts which incorporate VAS geopotential data as either scalar or horizontal gradient information for a mw study on the AVE/VAS day of 6 March 1982. On this day, incorporating ...
Column Cloud Liquid Water Amounts for Nonprecipitating Clouds versus an “Effective Cloud Fraction” Derived from Microwave Data: A Simulation Study
Publisher: American Meteorological Society
Abstract: The effective cloud fraction evaluated using a minimum residual method and microwave data synthesized for the Advanced Microwave Sounding Unit (AMSU) has been extended by a simple statistical procedure to make estimates ...
Improvements to a Simple Physical Model for Estimating Insolation from GOES Data
Publisher: American Meteorological Society
Abstract: The simple physical model to estimate surface insolation from GOES data (described in Gautier et al., 1980) has been improved through some modifications to existing physics (Rayleigh scattering and water vapor absorption), ...
An Investigation of the Effects of Spatially Averaging Satellite Brightness Measurements on the Calculation of Insolation
Publisher: American Meteorological Society
Abstract: An investigation of the effects of spatially averaging brightness measurements from a geostationary satellite on the calculation of insolation is presented. The calculation of insolation from calibrated hourly visible GOES ...
Retrieval of Nonprecipitating Liquid Water Cloud Parameters from Microwave Data: A Simulation Study
Publisher: American Meteorological Society
Abstract: A new microwave algorithm, analogous to the infrared ?radiance-ratioing? method (Eyre and Menzel 1989) is developed to retrieve the height and ?effective? fraction (defined as the product of the emissivity times the actual ...
The Influence of Variations in Surface Treatment on 24-Hour Forecasts with a Limited Area Model, Including a Comparison of Modeled and Satellite-Measured Surface Temperatures
Publisher: American Meteorological Society
Abstract: The effect of variations in surface parameters on 24-hour limited area forecasts has been examined on a day in July 1981. The vehicle for the study is a ten-level primitive equation model covering most of the continental ...
A Simple Physical Model to Estimate Incident Solar Radiation at the Surface from GOES Satellite Data
Publisher: American Meteorological Society
Abstract: We present a model designed to estimate the incident solar radiation at the suface from GOES satellite brightness measurements in clear and cloudy conditions. In this simple physical model, the effect of Rayleigh scattering ...
Preparing for the AMSU
Publisher: American Meteorological Society
Abstract: The Advanced Microwave Sounding Unit (AMSU) is a 20-channel microwave satellite remote-sensing system comprising two separate radiometers, which is slated to be launched on NOAA polar-orbiting satellites beginning in 1994. ...
Estimating Fluxes on Continental Scales Using Remotely Sensed Data in an Atmospheric–Land Exchange Model
Publisher: American Meteorological Society
Abstract: A simple model of energy exchange between the land surface and the atmospheric boundary layer, driven by input that can be derived primarily through remote sensing, is described and applied over continental scales at a ...
Short-Range Precipitation Forecasts Using Assimilation of Simulated Satellite Water Vapor Profiles and Column Cloud Liquid Water Amounts
Publisher: American Meteorological Society
Abstract: These observing system simulation experiments investigate the assimilation of satellite-observed water vapor and cloud liquid water data in the initialization of a limited-area primitive equations model with the goal of ...