Journal of Applied Meteorology: Recent submissions
Now showing items 1461-1480 of 6019
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Changes in Cloud Nucleus Concentration and Cloud Droplet Size Distribution Associated with Pollution from St. Louis
(American Meteorological Society, 1973)During July and August, 1971, measurements were made of cloud condensation nuclei (CCN), supersaturation spectra, and cloud-base microstructure upwind and downwind of St. Louis. The supersaturation spectrum of CCN in 19 ... -
Fumigation and Plume Trapping on the Shores of Lake Michigan During Stable Onshore Flow
(American Meteorological Society, 1973)Previous studies have shown that the lake breeze circulation cell which develops along the western shore of Lake Michigan during almost half of the warm season days has detrimental effects upon the air quality of the ... -
Cloud-Free Line-of-Sight Calculations
(American Meteorological Society, 1973)A method for computing the probability of a cloud-free line-of-sight (CFLOS) between a given point in the atmosphere and a given point on the earth, was developed. The method is based on 3-hr synoptic weather reports of ... -
Sferics and Radar Studies of South Florida Thunderstorms
(American Meteorological Society, 1973)A Litton Systems 500-kHz, SPARSA/S, 64-channel, thunderstorm-sferics sensor is coupled to the PPI scope of a 10-cm wavelength weather radar. Short vectors protrude from the center of the PPI scope indicating the direction ... -
Numerical Simulation of Cloud Seeding Experiments in Selected Australian Areas
(American Meteorological Society, 1973)Using actual rainfall records for selected areas, one can by computer simulation apply hypothetical seeding effects and then compare the results obtained and inferences drawn by individual ?experimenters? who have superimposed ... -
Statistical Properties of Precipitation Patterns
(American Meteorological Society, 1973)Space and time autocorrelation functions are defined for the precipitation process on a horizontal plane. An optical device was designed and used to measure these functions as well as the mean, the mean square, and the ... -
Speed of Tropical Storms and Typhoons After Recurvature in the Western North Pacific Ocean
(American Meteorological Society, 1973)Twenty-five years of tropical cyclone data (1945?69) for the western North Pacific were evaluated to determine the, speed-of-movement characteristics of tropical storms and typhoons following recurvature. The results show ... -
The Estimation of Extratropical Cyclone Parameters from Satellite Radiation Measurements
(American Meteorological Society, 1973)An objective statistical procedure has been developed using satellite infrared window radiation measurements to estimate the central pressure (Pc), the deviation of the central pressure from the climatological normal (?P), ... -
Transient Suppression in Optimal Sequential Analysis
(American Meteorological Society, 1973)A problem associated with four-dimensional data assimilation in numerical models of the atmosphere is the excitation of spurious dynamical modes such as gravity-inertial waves. If the desired diagnostic restrictions on the ... -
Experiments in the Four-Dimensional Assimilation of Nimbus 4 SIRS Data
(American Meteorological Society, 1973)Temperature data derived from Nimbus 4 SIRS radiance measurements have been used in four-dimensional assimilation experiments with a simple two-level primitive equation model. Data are inserted into a running forecast on ... -
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Flame Suupressents for Propane Cold Fog Seeding
(American Meteorological Society, 1973)Small amounts of bromotriflurormethane can be used to reduce or eliminate the fire hazard in propane spray cloud seeding. -
Artifical Growth of “Icicle” Lobe Structure of a Hailstone in a Wind Tunnel
(American Meteorological Society, 1973)tract -
A Technique for Measuring Relative Threshold Nucleation Temperatures for Active Nucleation Catalysts
(American Meteorological Society, 1973)A technique is described for using dilatometers to measure and compare the freezing temperature of water in the presence of various nucleation catalysts. Nucleation is indicated by the increase in volume that water undergone ... -
On an Instrument for Measuring Low-Level Vertical Temperature Profiles
(American Meteorological Society, 1973)tract -
A Height-Dependent Model of Eddy Viscosity in the Planetary Boundary Layer
(American Meteorological Society, 1973)A height-dependent model of the vertical eddy diffusivity for momentum, K(Z), has been formulated for purposes of studying numerically the momentum (and heat) transfer arising from turbulent motions within the planetary ... -
A Method of Analyzing Transient Waves by Space-Time Cross Spectra
(American Meteorological Society, 1973)Spectral formulas for analyzing transient waves are presented. Cross-spectral analysis of space-Fourier coefficients isolates travelling waves and standing wave oscillations, and provides statistical information concerning ... -
A Two–Satellite Microwave Occulation System for Determining Pressure Altitude References
(American Meteorological Society, 1973)A two-satellite microwave occultation system is described that will fix as an absolute functions of altitude the pressure-temperature profile generated by a passive infrared sounder. This method would be successful in ... -
Application of Nimbus 4 THIR 6.7 μm Observations to Regional and Global Moisutre and Wind Field Analyses
(American Meteorological Society, 1973)The Nimbus 4 Temperature-Humidity Infrared Radiometer (THIR) monitors radiation in the 6.5?7.2 ?m water vapor absorption region with a 23-km spatial resolution at the sub-satelite point. Radiation monitored in this spectral ... -
A Technique for Real-Time, Quantitative Display of APT Scanning Radiometer Data
(American Meteorological Society, 1973)A method for gridding scanning radiometer (SR) data is outlined in complete detail. This gridding method, coupled with a suggested display technique, enables one to produce a real-time quantitative display of APT service ...