Journal of Applied Meteorology: Recent submissions
Now showing items 1341-1360 of 6019
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On the Importance of Precision for Short-Range Forecasting and Climate Simulation
(American Meteorological Society, 1973)This paper presents results of experiments designed to test the importance of arithmetic precision in short-term forecasts and long-term climate simulations with the NCAR global circulation model. It is expected that the ... -
Neighborhood Gradient Analysis: Examination of Variance in North Central Oklahoma Rainfall Statistics
(American Meteorological Society, 1973)A method called Neighborhood Gradient Analysis is used to examine the variance in precipitation statistics for a neighborhood of Stillwater, Okla. The method uses: 1) radial geometry with respect to a ?target? area ... -
Climatic Data Banking and Analysis Using an information Retrieval System
(American Meteorological Society, 1973)The TAXIR information retrieval system, originally developed for taxonomic research, is described in the context of its application to climatological data. Data banks for four mountain stations in Colorado have been ... -
Dew and Frost Deposition on Pyranometers
(American Meteorological Society, 1973)The formation of dew or frost on the outer glass hemisphere of pyranometers was found to cause erroneous values of incident hemispheric solar radiation. An air flow system was designed to continually ventilate the instrument ... -
A Cautionary Note on the Use of Dew Point-Frost Point Hygrometers for Frost Point Measurements
(American Meteorological Society, 1973)tract -
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Persistence and Recurrence Probabilities of Cloud-Free and Cloudy Lines-of-Sight Through the Atmosphere
(American Meteorological Society, 1973)A total of 13,215 high-contrast, whole-sky photographs were studied to derive estimates of cloud-free and cloudy line-of-sight persistence and recurrence probabilities. There were 585 hr when photographs were taken every ... -
The Hemispheric Reflectance of a Plane Water Surface for Atmospheric Radiation
(American Meteorological Society, 1973)The hemispheric reflectance of a plane water surface is computed for clear sky and low overcast sky emission spectra. The gross features of clear sky emission are described by a model that has a deficiency of emission in ... -
A Multi-Spectral Method for Estimating Cirrus Cloud Top Heights
(American Meteorological Society, 1973)A two-channel method has been developed to estimate the altitude of cirrus clouds over ocean areas with an expected altitude error ≤ ± 50 mb. Reflected radiation is used to estimate cirrus emissivity in the 10?11 ?m spectral ... -
Atmospheric Stability Measurements at Tropopause Altitudes Using Forward-Scatter CW Radar
(American Meteorological Society, 1973)The results of a high-altitude probing experiment are presented which demonstrate the capability of measuring atmospheric stability at tropopause altitudes using a 940-MHz forward-scatter CW radar system. Vertical profiles ... -
A Comparison of the Low-Level Radiosonde and the Acoustic Echo Sounder for Monitoring Atmospheric Stability
(American Meteorological Society, 1973)Temperature profiles measured with a radiosonde are compared with returns from an acoustic echo sounder throughout the height range 50?700 m. In general, the sounder records indicate the temperature inversion to be somewhat ... -
Seasonal Variations and Frequency Distributions of Ice Nuclei Concentrations at Abidjan, West Africa
(American Meteorological Society, 1973)Atmospheric ice nuclei concentrations were measured at Abidjan for 27 months, with a mixing chamber operated at ?20C. Seasonal variations appear to be linked to the position of the Intertropical Front. Air masses arriving ... -
Ice Nucleus Concentrations at −20C During Convective Storms
(American Meteorological Society, 1973)Increases in surface ice nucleus concentrations at ?20C (by a factor of 10 or higher) have been measured during precipitation from hailing and non-hailing convective storms; these increases are associated with the storm ... -
Trajectories Within the Weak Echo Regions of Hailstorms
(American Meteorological Society, 1973)Three-dimensional tracks of 21 slow-fall chaff packets have been obtained while the packets were rising in the weak echo regions of eight separate Colorado hailstorms. The chaff packets were released at cloud base in the ... -
The Contrasting Synoptic and Physical Character of Northeast and Southeast Advancing Tornadoes in Iowa
(American Meteorological Society, 1973)Results are presented from a systematic study of 386 Iowa tornadoes reported over a 13-year period (1959?71). The tornado occurrences are studied as a function of time of day, date, path length, width, 500-mb flow, and ... -
A Linear Model of Boundary Layer Flow Applied to the St. Patrick's Day Storm of 1965
(American Meteorological Society, 1973)A time-dependent, one-dimensional numerical model of the boundary layer at individual stations is solved by a finite-difference technique for the St. Patrick's Day storm of 1965. Using only surface pressure and temperature ... -
Convective Activity Above a Large-Scale Bushfire
(American Meteorological Society, 1973)Convection in the air above an intense fire in northern Australia has been studied, and the results are compared with those of an earlier investigation. At the height of the fire a short-lived condensation cloud, covering ... -
The Observation and Simulation of Diurnal Evaporation Contrast in an Alaskan Alpine Pass
(American Meteorological Society, 1973)The surface climate simulation strategy developed by Myrup and modified by Outcalt was employed in the analysis of evaporation in rough alpine tundra terrain at Chitistone Pass, Alaska (61N, 142W, 1773 m MSL). The observations ... -
On the Notion of Equivalent Specific Liquid Water Content and Its Applications to the Thermodynamics of Clouds
(American Meteorological Society, 1973)A linear combination of specific liquid water content and temperature excess over the environmental value is found, which for an entrained, nonprecipitating parcel has the property of being approximately independent of ...