Journal of Applied Meteorology: Recent submissions
Now showing items 21-40 of 6019
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Characteristics of Vertical Velocity Fluctuations in a Convective Urban Boundary Layer
(American Meteorological Society, 1979)Vertical air motions within the convective boundary layer over Toronto, Canada, have been observed using a monostatic Doppler echosonde. Data were acquired on cloudless days with strong insolation and light winds, when ... -
Raingage Network Requirements from a Simulated Convective Complex Weather Modification Experiment
(American Meteorological Society, 1979)A convective complex weather modification experiment was simulated using Monte Carlo techniques. The purpose was to estimate the optimum raingage density for evaluation of a possible future experiment. The data base consisted ... -
Reexamination of Cloud-Top Temperatures Used as Criteria for Stratification of Cloud Seeding Effects in Experiments on Winter Orographic Clouds
(American Meteorological Society, 1979)A reexamination of cloud-top temperatures used in the evaluation of winter orographic cloud seeding experiments is made. Cloud-top temperatures derived from rawinsonde data are found to be typically about 20°C too warm ... -
Urban Effects on the Properties of Radar First Echoes
(American Meteorological Society, 1979)The properties of 3 cm radar first echoes were used to study the effects of the St. Louis, Missouri metropolitan area on precipitation initiation during the summer months of Project METROMEX. Good statistical support was ... -
A Saturation Hygrometer for the Measurement of Relative Humidity Between 95 and 105%
(American Meteorological Society, 1979)A new saturation hygrometer capable of measuring relative humidity between 95 and 105% is described. The hygrometer uses a thermally thin mirror on which condensation is controlled by limiting the exchange of ambient water ... -
Estimates of Surface Heat Flux from Sodar and Laser Scintillation Measurements in the Unstable Boundary Layer
(American Meteorological Society, 1979)Measurements of acoustic backscatter in the lower planetary boundary layer and optical line-of-sight scintillation in the surface layer are each used to compute sensible heat fluxes in the unstable surface layer. Comparisons ... -
Pressure and Vorticity Transients from Summer Storms and Aircraft
(American Meteorological Society, 1979)A field study directed primarily to the pressure fields produced by thunderstorms, plumes, dust devils and aircraft has been conducted during several summers at locations in northeastern Colorado and near Stapleton ... -
Atmospheric Sounding Near 118 GHz
(American Meteorological Society, 1979)The thermal emission spectrum of the atmosphere near the 118 GHz oxygen resonance has been measured from the NASA Convair-990 aircraft as it flew over clear air and storms. The instrument viewed the ground 45° from nadir ... -
Observations of Hummock Echoes in Italy
(American Meteorological Society, 1979)A monostatic acoustic sounder on the coast near La Spezia, Italy, detected clearly defined hummock echoes on two consecutive days in May 1977. The associated meteorological conditions are described. Reasonable agreement ... -
Chaff Seeding Effects in a Dynamical-Electrical Cloud Model
(American Meteorological Society, 1979)A two-dimensional, slab-symmetric, time-dependent cloud model has been devised to simulate deep convection in the atmosphere. The dynamics and thermodynamics of deep convection are prescribed and the microphysics of the ... -
A Simple Analytic Model for Transport by Fluctuating Winds
(American Meteorological Society, 1979)The statistical properties of airborne tracer concentrations, and the time-lagged correlation between concentration and wind velocity, are calculated from a simple model for the fluctuations in wind velocity. The mean ... -
Comments on “The Relationship Between the Amount and Frequency of Precipitation Over the Ocean”
(American Meteorological Society, 1979)No abstract available. -
Estimating the Joint Probability of a Weather Event at More Than Two Locations
(American Meteorological Society, 1979)Hourly observations of precipitation, sky cover, ceiling, visibility, wind speed and temperature, taken over a 13-year period at nine locations along the east coast of the United States, were processed to obtain unconditional ... -
Note on the Use of the Inverse Gaussian Distribution for Wind Energy Applications
(American Meteorological Society, 1979)The inverse Gaussian distribution is suggested as an alternative to the three-parameter Weibull distribution for the description of wind speed data with low frequencies of low speeds. A comparison of the two distributions ... -
Lidar Determinations of Atmospheric Ice Crystal Layers at South Pole during Clear-Sky Precipitation
(American Meteorological Society, 1979)Results of lidar measurements of atmospheric ice crystal layers during 36 clear-sky precipitation events at South Pole (2850 m MSL) during the winter over the period March-November 1975 are presented and correlated with ... -
Evidence of Urban and Lake Influences on Precipitation in the Chicago Area
(American Meteorological Society, 1979)A study of summer precipitation conditions in the Chicago area sought to discern evidence of urban influences on precipitation processes and rainfall magnitude by investigating cloud, radar echo, rainfall and thunderstorm ... -
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Simulation of Daily Weather Data Using Theoretical Probability Distributions
(American Meteorological Society, 1979)A computer simulation model was constructed to supply daily weather data to a plant disease management model for potato late blight. In the weather model Monte Carlo techniques were employed to generate daily values of ... -
A Numerical Investigation of Several Factors Contributing to the Observed Variable Intensity of Deep Convection over South Florida
(American Meteorological Society, 1979)This study employs a revised version of the Colorado State University three-dimensional numerical cloud scale model to investigate the observed behavior of deep convection over South Florida on 17 July 1973. A brief ...