Journal of Applied Meteorology: Recent submissions

Now showing items 341-360 of 6019

    • Subjective Analysis of Mesoscale Flow Patterns in Northern Israel 

      Skibin, D.; Hod, A. (American Meteorological Society, 1979)
      The average flow over northern Israel in July has been analyzed. Three-hourly maps of the flow were obtained and discussed. The synoptic pressure distribution is relatively invariable in this period. Therefore, the flow ...

    • Turbulence Spectra above a Vegetated Surface under Conditions of Sensible Heat Advection 

      Motha, Raymond P.; Verma, Shashi B.; Rosenberg, Norman J. (American Meteorological Society, 1979)
      Spectra of vertical and horizontal velocity, air temperature and humidity fluctuations were analyzed from measurements made over a well-watered alfalfa crop under conditions of sensible heat advection. Vertical velocity ...

    • Planned Weather Modification and the Severe Weather Threat in the Central High Plains 

      Achtemeier, Gary L. (American Meteorological Society, 1979)
      Operational and experimental convective cloud-seeding projects are often planned without regard to the number of seeding-opportunity days that can be lost because of the need to suspend operations during the threat of ...

    • Measurement of Atmospheric Temperature Profiles Using Raman Lidar 

      Gill, R.; Geller, K.; Farina, J.; Cooney, J.; Cohen, A. (American Meteorological Society, 1979)
      Measurements of atmospheric temperature profiles made using a laser radar are presented. The altitude ranges from 1300 to 2300 m. An averaged absolute difference over the profile length as compared to a radiosonde profile ...

    • Potential Application of Model Output Statistics (MOS) to Forecasts of Surface Ozone Concentrations 

      Karl, Thomas R. (American Meteorological Society, 1979)
      Statistical forecast equations have been developed for the Greater St. Louis, Missouri, area using Model Output Statistics (MOS) derived from the National Meteorological Center's Limited-Area Fine Mesh (LFM) model. They ...

    • Cape Canaveral Sea Breezes 

      Reed, Jack W. (American Meteorological Society, 1979)
      Anemometer records from five levels on a 151 m meteorological tower have been analyzed. Results show an approximate elliptical clockwise diurnal oscillation of the sea breeze component of the wind. The oscillation amplitude ...

    • Generalization of K Theory for Turbulent Diffusion. Part I: Spectral Turbulent Diffusivity Concept 

      Berkowicz, Ruwim; Prahm, Lars P. (American Meteorological Society, 1979)
      The gradient transfer theory for turbulent diffusion is reformulated in order to obtain an improved method for applied dispersion studies. The basic innovation is that diffusivity of single Fourier components of the ...

    • Comments on “Measurement of Aerosol Particles and Trace Gases in METROMEX” 

      Tanner, Roger L. (American Meteorological Society, 1979)
      No abstract is available

    • Generalization of K Theory for Turbulent Diffusion. Part II: Spectral Diffusivity Model for Plume Dispersion 

      Prahm, Lars P.; Berkowicz, Ruwim; Christensen, Ove (American Meteorological Society, 1979)
      Further development of the spectral turbulent diffusivity concept is presented with the aim of obtaining an Eulerian dispersion model applicable for multiple interacting sources. The theory is applied for studies of plume ...

    • Tropical Winds Measured by the Arecibo Radar 

      Farley, D. T.; Balsley, B. B.; Swartz, W. E.; La Hoz, C. (American Meteorological Society, 1979)
      Preliminary measurements of tropospheric and stratospheric parameters using the large 430 MHz radar at Arecibo, Puerto Rico, show excellent agreement between a wind profile deduced from the radar back-scatter and a profile ...

    • Ice Evolution within Seeded and Nonseeded Florida Cumuli 

      Sax, Robert I.; Thomas, Jack; Bonebrake, Marilyn; Hallett, John (American Meteorological Society, 1979)
      From in-cloud microphysical data collected during the Florida Area Cumulus Experiment (FACE), evidence is presented documenting the presence of significantly greater quantities of crystalline ice near the ?10°C sampling ...

    • Ice Particle/Water Droplet Discrimination with an Optical Ice Particle Counter 

      Schemenauer, Robert S.; Curry, Michael J. (American Meteorological Society, 1979)
      The capability of a Mee Industries Model 120 ice particle counter (IPC) to differentiate between ice particles and water drops was investigated in laboratory and field studies. The threshold voltage setting as well as the ...

    • Characteristics of AgI Pyrotechnic Nucleant Used in NOAA's Florida Area Cumulus Experiment 

      Sax, Robert I.; Garvey, Dennis M.; Parungo, Farn P. (American Meteorological Society, 1979)
      Isothermal cold chamber tests indicate that the NEI TB-1 pyrotechnic used in FACE after July 1975 emits a silver iodide smoke which has a much greater nucleating effectiveness in the temperature range ?6 to ?12°C than that ...

    • Frequency of Occurrence of Fast Gusts of Wind Inside a Corn Canopy 

      Shaw, Roger H.; Ward, David P.; Aylor, Donald E. (American Meteorological Society, 1979)
      The removal from leaves of small particles such as pollen, dust or spores often requires gusts of wind having speeds that greatly exceed the mean wind speed. To determine the frequency of occurrence of such fast gusts we ...

    • Areal Distribution of Deuterium in Eastern California Precipitation, 1968–1969 

      Smith, George I.; Friedman, Irving; Klieforth, Harold; Hardcastle, Kenneth (American Meteorological Society, 1979)
      Rain and snow were collected during major storms at 26 stations in California and Nevada during the exceptionally wet 1968?69 season. The deuterium/hydrogen ratios (δD, in per mil, VSMOW) of the samples varied according ...

    • The Water Budget and Potential Water Reserves of the East Africa Source Region of the Nile 

      Vowinckel, E.; Orvig, Svenn (American Meteorological Society, 1979)
      An energy budget model has been used, with daily synoptic surface and upper air data from four stations in East Africa, to calculate all terms of the surface energy balance once for each day and each night of 1973. The ...

    • Run Duration Analysis of Surface Wind Speeds for Wind Energy Application 

      Sigl, Arden B.; Corotis, Ross B.; Won, Danny J. (American Meteorological Society, 1979)
      Hourly wind speed records are used to develop a model for the probability distribution of wind speed persistence above and below fixed reference speeds. Examination of duration histograms from 19 sites for records varying ...

    • Time-Domain Computation of Mean and Variance of Doppler Spectra 

      Srivastava, R. C.; Jameson, A. R.; Hildebrand, P. H. (American Meteorological Society, 1979)
      The mean VT, variance σT2 and signal-to-noise ratio SNRT of Doppler spectra from precipitation in a thunderstorm and from radar signal reflecting chaff have been estimated by an objective thresholding scheme. Using pulse-pair ...

    • On the Concentration of Sulfate in Precipitation 

      Scott, B. C.; Laulainen, N. S. (American Meteorological Society, 1979)
      Two case studies are used to examine the relationship of the sulfate concentration in surface precipitation to the microphysical characteristics of the precipitating cloud systems. The data from one case study support the ...

    • Dispersion of Atmospheric Pollutants in Flow over the Shoreline of a Large Body of Water 

      Dobosy, Ronald (American Meteorological Society, 1979)
      Simulation of pollutant dispersion and mixed-layer development in a shoreline fumigation regime was studied using a two-dimensional vertical plane model employing level two or three (depending on the experiment) from the ...