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Atmospheric Water Vapor over China
Publisher: American Meteorological Society
Abstract: Chinese radiosonde data from 1970 to 1990 are relatively homogeneous in time and are used to examine the climatology, trends, and variability of China?s atmospheric water vapor content. The climatological distribution of ...
Effect of a Precipitation-Driven Downdraft on a Rotating Wind Field: A Possible Trigger Mechanism for Tornadoes?
Publisher: American Meteorological Society
Abstract: The Physical and dynamical effects of simulated precipitation in a rotating wind field are examined by numerical experiments. The physical-dynamical model consists of the three equations of motion, a thermodynamic equation, ...
Analyses of Inhomogeneities in Radiosonde Temperature and Humidity Time Series
Publisher: American Meteorological Society
Abstract: Twice daily radiosonde data from selected stations in the United States (period 1948 to 1990) and China (period 1958 to 1990) were sorted into time series. These stations have one sounding taken in darkness and the other ...
Measurement and Prediction of Traffic-Induced Turbulence and Velocity Fields Near Roadways
Publisher: American Meteorological Society
Abstract: The primary objectives of this investigation are to determine the temporal and spacial resolution needed to adequately measure vehicle wake turbulence and the characteristics of turbulence near roadways using the knowledge ...
Highway Modeling. Part I: Prediction of Velocity and Turbulence Fields in the Wake of Vehicles
Publisher: American Meteorological Society
Abstract: A theory for the velocity deficit in the wake of a moving vehicle in still air is derived from a perturbation analysis of the equations of motion. By suitable assumptions, expressions are found for the turbulent energy ...
Temperature Corrections for the VIZ and Vaisala Radiosondes
Publisher: American Meteorological Society
Abstract: The National Weather Service VIZ radiosonde and the Vaisala RS-80 radiosondes are used worldwide to obtain upper-air measurements of atmospheric temperature and moisture. The temperature measured by each sensor is not equal ...
Improved Magnus Form Approximation of Saturation Vapor Pressure
Publisher: American Meteorological Society
Abstract: Algorithms, based on Magnus's form equations, are described that minimize the difference between several relationships between temperature and water vapor pressure at saturation that are commonly used in archiving data. ...