Journal of Applied Meteorology: Recent submissions
Now showing items 221-240 of 6019
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Covariance Analyses of Satellite-Derived Mesoscale Wind Fields
(American Meteorological Society, 1979)Statistical structure functions have been computed independently for nine satellite-derived, mesoscale wind fields that were obtained on two different days. Small cumulus clouds were tracked at 5 min intervals, but since ... -
An Investigation of Pollutant Source Strength-Rainfall Relationships at St. Louis
(American Meteorological Society, 1979)Speculation concerning effects of pollutants on weather, especially rainfall, has intrigued scientists and laymen alike in recent years. Results from Project METROMEX suggest that rainfall is increased after a moving ... -
Condensation Nuclei and Weather on Mount Kenya
(American Meteorological Society, 1979)Meteorological data and information on condensation nuclei (CN) levels were collected from the peak area of Mount Kenya over a short period in July 1977. The relationship between CN, vertical temperature structure and wind ... -
An Efficient Parameterization of Convective and Nonconvective Planetary Boundary Layers for Use in Numerical Models
(American Meteorological Society, 1979)An efficient, multilayer model for predicting the diurnal variations in the thermal and momentum fields in the planetary boundary layer (PBL) is proposed for incorporating into mesoscale or large-scale dynamical models. ... -
An Investigation of Surface Albedo Variations during the Recent Sahel Drought
(American Meteorological Society, 1979)Applications Technology Satellite (ATS) 3 green sensor data are used to measure surface reflectance variations in the Sahara/Sahel during the recent drought period 1967?74. The magnitude of the seasonal reflectance change ... -
Humidity Effects and Sea Salt Contamination of Atmospheric Temperature Sensors
(American Meteorological Society, 1979)Microthermal sensors contaminated by salt aerosol droplets are subject to erroneous temperature fluctuations caused by water vapor exchange in response to fluctuations in humidity. The effect was studied by comparing the ... -
Determining the Diurnal Variation of Surface Temperature in Mountainous Terrain
(American Meteorological Society, 1979)The diurnal variation of surface temperature in mountainous terrain was modeled using the first two harmonics of the Fourier series. The temperature T at any time t is given by Each of the Fourier coefficients in this ... -
Gaussian Plume Model Parameters for Ground-Level and Elevated Sources Derived from the Atmospheric Diffusion Equation in a Neutral Case
(American Meteorological Society, 1979)The ground-level concentration profiles, derived from the analytical solution of the atmospheric diffusion equation for a line source and for the wind speed and vertical dispersion coefficient expressed by Schmidt's conjugate ... -
Climatic Normals in the Greenland Sea Area
(American Meteorological Society, 1979)Large differences in climatic normals for different periods of record must be taken into account in using such data to assess recent anomalies. Data for the Greenland Sea area are used to illustrate the significance of the ... -
Comments on the Climax and Wolf Creek Pass Cloud Seeding Experiments
(American Meteorological Society, 1979)The physical hypotheses for the cloud seeding experiments carried out by Colorado State University in the Colorado Rockies (Climax I and II and Wolf Creek Pass) in the 1960's are critically examined. Airborne measurements ... -
Relation Between West Coastal Rainfall and Nimbus 6 SCAMS Liquid Water Data over the Northeastern Pacific Ocean
(American Meteorological Society, 1979)We describe a research study in which we explored the application to rainfall prediction of cloud liquid water data obtained from the SCAMS experiment of Nimbus 6. The study area is the Pacific Northwest coast of the United ... -
Effect of Subjectively Enhancing the Initial Vorticity Field in a Short-Range Numerical Forecast
(American Meteorological Society, 1979)A method of introducing subsynoptic-scale initial data into a six-level primitive equation model is presented. Vorticity perturbations on the scale of subsynoptic disturbances are added to the initial winds; the amplitudes ... -
Remote Sounding of High Clouds: I. Calculation of Visible and Infrared Optical Properties from Lidar and Radiometer Measurements
(American Meteorological Society, 1979)This article describes a method of determining the visible and infrared properties of high ice clouds using a ground-based lidar and infrared (IR) radiometer. A method of calibrating the lidar is described. This is followed ... -
Emissivity Correction for Interpreting Thermal Radiation from a Terrestrial Surface
(American Meteorological Society, 1979)A general method of accounting for emissivity in making temperature determinations of greybody surfaces from radiometric data is presented. The method differs from previous treatments in that a simple blackbody calibration ... -
Approximation for Coefficients of Large Particle Scattering in the Determination of Total Ozone
(American Meteorological Society, 1979)A method is proposed to determine the total ozone in the atmosphere from measurements made with the Dobson spectrophotometer at any three of the standard wavelength pairs by approximating the coefficients of large particle ... -
Remote Sounding of High Clouds: II. Emissivity of Cirrostratus
(American Meteorological Society, 1979)The results from a series of measurements of the beam emissivity of cirrostratus at 10?12 ?m wavelengths are presented, using methods of analysis which were discussed in Part I. A ruby lidar and infrared radiometer were ... -
Trees as a Local Climatic Wind Indicator
(American Meteorological Society, 1979)The use of trees as a local climatic wind indicator is described. Studies using trees as an indicator of prevailing wind direction, wind speed and as an evidence of the occurrence of severe winds are presented. This paper ... -
Estimating Incident Solar Radiation at the Surface from Geostationary Satellite Data
(American Meteorological Society, 1979)Solar radiant energy incident at the earth's surface is a quantity of increasing importance in agricultural monitoring and solar power development. An experiment was undertaken in the summer of 1977 to determine if incoming ... -
An Inexpensive Sonic Anemometer for Eddy Correlation
(American Meteorological Society, 1979)A new continuous wave sonic anemometer was constructed using inexpensive ultrasonic transducers and phase-locked loop integrated circuitry. Vertical wind is measured by sensing the difference in phase between sound waves ... -
Velocity Distributions within Oklahoma Severe Storms
(American Meteorological Society, 1979)Optimum design of a Doppler radar system for operation in a severe storm environment will depend on the maximum unambiguous velocity. Radial velocities of severe storms are examined from four Doppler radars over several ...