Journal of Applied Meteorology: Recent submissions

Now showing items 1961-1980 of 6019

    • An Objective Minimum Temperature Forecasting Technique Using the Economical Net Radiometer 

      Georg, J. G. (American Meteorological Society, 1970)
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    • A Comparison Between Observed Winds and Cloud Motions Derived from Satellite Infrared Measurements 

      Shenx, William E.; Kreins, Earl R. (American Meteorological Society, 1970)
      Cloud Motions were obtained from HRIR measurements contained within the overlapped region of two adjacent Nimbus II orbits. These 108-min averaged motions were compared with instantaneous wind vectors interpolated from ...

    • Short-Term Variations in the Vertical Distribution of Atmospheric Ozone at Albuquerque, New Mexico 

      Breiland, John G. (American Meteorological Society, 1970)
      Variations with time in the vertical distribution of ozone during a period of influx of subtropical air associated with a shortwave ridge and a cold middle tropopause are studied in detail by means of a series of ozone ...

    • Rainfall Trends in Hawaii 

      Woodcock, A. H.; Jones, Richard H. (American Meteorological Society, 1970)
      A recent study in Queensland, Australia, associates long-term downward trends in rain amount with the productivity of the sugarcane industry. The relationship is attributed to an increasing colloidal stability in the clouds ...

    • Time-Resolved Measurement of Droplet Size and Concentration in Cloud Chambers 

      Cole, J. E.; Dobbins, R. A.; Semerjian, H. (American Meteorological Society, 1970)
      An optical method for measuring droplet size and concentration in a cloud chamber on a time-resolved basis is discussed. During the growth of the droplets, speed transmission at two wavelengths of light is continuously ...

    • Visibility and Light Attenuation in Falling Snow 

      O'Brien, Harold W. (American Meteorological Society, 1970)
      The attenuation of visible light by failing snow was studied by making simultaneous determinations of attenuation coefficients and snow concentration. The attenuation coefficient was calculated from photo-metric measurements ...

    • Vortex Signature Recognition by a Doppler Radar 

      Donaldson, Ralph J. (American Meteorological Society, 1970)
      A scanning Doppler radar has capability for measurement of the tangential shear of radial velocity or gradient of the radial component of velocity in a direction normal to the radial vector. Tangential shear of sufficient ...

    • Hail and Lightning Occurrence in Mountain Thunderstorms 

      Baughman, R. G.; Fuquay, D. M. (American Meteorological Society, 1970)
      The characteristics of northern Rocky Mountain thunderstorms with and without hail are compared on the basis of visual observations of hail at surface stations and electric field meter records of lightning frequency. Data ...

    • Field Use of a Simple Technique for Identifying Silver Iodide Particles as Snow Crystal Nuclei 

      Parungo, Farn P.; Rhea, J. Owen (American Meteorological Society, 1970)
      A procedure is presented for identifying those silver iodide particles in ice crystals that have behaved as snow crystal nuclei. The new technique is based on the principle that any submicron particle can act as a nucleus ...

    • The Effect of Surface Films in Retarding the Growth by Condensation of Cloud Nuclei and Their Use in Fog Suppression 

      Warner, J.; Warne, W. G. (American Meteorological Society, 1970)
      Equations are given for the growth by adsorption and condensation of cetyl alcohol and water vapor on a poplulation of hygroscopic nuclei in an atmosphere being cooled at a given rate. The equations are integrated numerically ...

    • A Comparison of the Warm Fog Clearing Capabilities of Some Hygroscopic Materials 

      Kunkel, Bruce A.; Silverman, Bernard A. (American Meteorological Society, 1970)
      The chemical properties of hygroscopic materials are evaluated to determine the desirable characteristics of in effective warm fog seeding agent. A numerical model is used to determine the relative fog clearing capabilities ...

    • A Numerical Model of Warm Fog Dissipation by Hygroscopic Particle Seeding 

      Silverman, Bernard A.; Kunkel, Bruce A. (American Meteorological Society, 1970)
      A numerical model has been developed which simulates the modification of warm fog caused by the condensation-coalescence growth of monodispersed hygroscopic particles introduced into the top of a fog layer. With this model, ...

    • An Inert Gas Tracer System for Monitoring the Real-Time History of a Diffusing Plume or Puff 

      Nickola, P. W.; Ludwick, J. D.; Ramsdell, J. V. (American Meteorological Society, 1970)
      A brief description is given of the Hanford inert gas tracer system employed in atmospheric diffusion studies. Among the advantages of the system are the detailed histories of concentration generated simultaneously at 64 ...

    • Case Studies of a Convective Plume and a Dust Devil 

      Kaimal, J. C.; Businger, J. A. (American Meteorological Society, 1970)
      The paper describes the characteristics of a convective plume and a dust devil from measurements made at 5.66 and 22.6 m above a flat uniform site in Kansas. The velocity fluctuations were measured with a continuous-wave, ...

    • On the Mean Path of a Buoyant Chimney Plume in Non-Uniform Wind 

      Murthy, C. R. (American Meteorological Society, 1970)
      Based on the turbulent entrainment hypothesis of Morton et al. and the eddy diffusivity hypothesis, approximate theories have been developed for the rise of a buoyant chimney plume in the atmospheric boundary layer, ...

    • Wind Drag Within Simulated Forest Canopies 

      Hsi, G.; Nath, J. H. (American Meteorological Society, 1970)
      The local drag coefficients, aerodynamic roughness and wind velocity profiles were studied for a simulated tree-forest canopy. Furthermore, a brushy canopy was investigated which simulated the leafy portion of a forest ...

    • Wind Distribution Asymmetry in the Lowest 90 Meters and Its Effect on Diffusion 

      Pries, Thomas H. (American Meteorological Society, 1970)
      For many applications it is assumed that the turbulent fluctuations of the wind components are normally distributed. The validity of this assumption was examined for the first 90 m of the atmosphere by observing the skewness ...

    • Vertical Velocity Variances and Reynold Stresses at Brookhaven 

      Busch, N. E.; Brown, R. M.; Frizzola, J. A. (American Meteorological Society, 1970)
      The response characteristics obtained through wind tunnel tests of the Brookhaven National Laboratory bivane are presented and used in correcting the measured values of (??2/u*2), the variance of the vertical wind velocity ...

    • Kananaskis Valley Temperatures in Summer 

      MaChattie, L. B. (American Meteorological Society, 1970)
      Application of temperature observations depends on assessment of the difference in temperature between points of observation and points of application. As an aid to estimating temperature variations in valleys, particularly ...

    • A Spatial Model of an Urban Heat Island 

      Preston-Whyte, R. A. (American Meteorological Society, 1970)
      Mean temperatures obtained from 28 midday motor traverses in the Durban area during the summer of,1968?69 show the center of the heat island to be displaced away from the central business district by the sea breeze. The ...