Journal of Applied Meteorology: Recent submissions
Now showing items 3241-3260 of 6019
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Some Radar Measurements of Hailstorms
(American Meteorological Society, 1963)The radar reflectivity of thunderstorms at 10 cm is shown to be a good indicator of hail and a rough measure of its size. The physical characteristics of the hailstorm, as deduced from 3- and 10-cm echoes of a large number ... -
The Measurement of Ice Nucleus Concentrations by Means of Millipore Filters
(American Meteorological Society, 1963)Details are given of a technique for measuring ice nucleus concentrations using the cellulose ester membrane. filters known as ?millipores.? Some of the errors which may occur are examined in detail and it is shown that a ... -
The Effect of Dry-Ice Pellet Velocity on the Generation of Ice Crystals
(American Meteorological Society, 1963)The influence of fall velocities of dry-ice pellets on the nucleation of slightly supercooled clouds is discussed and the conditions necessary for the production of ice crystals are examined. A theoretical argument is ... -
Computation of the Large Scale Vertical Velocity
(American Meteorological Society, 1963)Vertical velocities are computed at four levels over a Northern Hemisphere grid in addition to a lower boundary value which is applied at terrain pressure and includes effects of frictionally- and terrain-induced vertical ... -
An Operational Method for the Determination of Vertical Velocities
(American Meteorological Society, 1963)An ?-chart is obtained from a combination of charts of the thickness advection and the vorticity advection. The advection charts can be rapidly computed by measurement of the areas of the quadrilaterals formed by the ... -
A Computer Derived Synoptic Climatology of Precipitation from Winter Storms
(American Meteorological Society, 1963)As part of the investigation into the problem of forecasting heavy snowstorms in the eastern and central United States, a synoptic climatology of the precipitation associated with winter storms has been derived. In order ... -
A Statistical Model for the Mid-Latitude Tropopause and Jet Stream Layer
(American Meteorological Society, 1963)Tropopause and level of maximum wind charts are derived from objective analyses of the 500-, 300-, 150- and 100-mb height and wind fields. Regression equations, based on 24-hr changes, are developed to permit reconstruction ... -
On the Formation and Development of Tropical Cyclones
(American Meteorological Society, 1963)Research in tropical meteorology has revealed that the average easterly winds found in tropical regions are perturbed by large numbers of synoptic-scale disturbances. The mechanisms responsible for the initiation of such ... -
On the Theoretical Predictability of Extrapolation Methods
(American Meteorological Society, 1963)By use of a statistical theory developed previously, five extrapolation formulas are generalized to take into account uncertainties of initial states, due to lack of information between observing stations. This furnishes ... -
On Subjective Probability Forecasting
(American Meteorological Society, 1963)The subjective process of probability forecasting is analyzed. It is found to contain a sorling aspect, in which the forecaster distributes all instances into an ordered set of categories of likelihood of occurrence, and ... -
Note on the Influence of Currents Upon Wind Estimates
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Preliminary Results Obtained with a Sonic Anemometer-Thermometer
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A Relationship between the Mean Monthly Height of the 700-mb surface and the Long Wave Flux Density Leaving the Earth at a Maritime Location
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Satellite Cloud Photos and Large-scale Vertical Motion
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Construction and Evaluation of a Miniature Net Radiometer
(American Meteorological Society, 1963)The miniature net radiometer was constructed by enclosing a blackened thermal transducer within four polystyrene radiation windows. The outer two radiation windows were hemispherically shaped (one-inch radius) so that the ... -
A Continuous Wave Sonic Anemometer-Thermometer
(American Meteorological Society, 1963)A sonic anemometer-thermometer, based on transmission of continuous sound waves and determination of phase angle variations, has been developed. The instrument is designed to measure the fluctuations in the vertical wind ... -
Micrometeorological Data Handling System
(American Meteorological Society, 1963)The data handling system was designed to record sequentially on punched paper tape or typewriter listings up to 40 voltage and nine electrical pulse signals from micrometeorological sensors. The system consists of a ... -
A Technique for Measuring Atmospheric Diffusion
(American Meteorological Society, 1963)A technique for measuring atmospheric diffusion with a ?floating grid? system is described. Tracer sampling is accomplished using one or two airplanes flying arcs of circles at selected radial distances from the release ...