Journal of Applied Meteorology: Recent submissions

Now showing items 2321-2340 of 6019

    • Ion Losses in the Gerdien Condenser Intake System 

      Cobb, William E. (American Meteorological Society, 1968)
      The measurement of atmospheric electrical conductivity, ion density or mobility, by the aspiration method, may result in the undesired removal of ions within the air-intake system. A field experiment has been carried out ...

    • The Generation of Large Numbers of Ice Crystals in an Electric Field 

      Schaefer, Vincent J. (American Meteorological Society, 1968)
      A very small electrically conducting wire or fiber, when charged to about 3000 V dc in a cold chamber with its air supersaturated with respect to ice, produces a dense streamer of tiny, free floating ice crystals in the ...

    • Cloud Nuclei Spectra and Updrafts beneath Convective Cloud Bases in the High Plains 

      Marwitz, John D.; Auer, August H. (American Meteorological Society, 1968)
      Air samples and updraft speeds were obtained simultaneously beneath the bases of convective clouds in northeastern Colorado and in South Dakota. Air samples were examined on the ground in a thermal diffusion nuclei chamber ...

    • Neutron Activation Measurements of Silver in Precipitation from Locations in Western North America 

      Warburton, J. A.; Young, L. G. (American Meteorological Society, 1968)
      Thermal neutron activation methods have been applied to the determination of silver content in samples of hail, rain and snow. Hail and rain samples were collected in South Dakota in regions where AgI cloud seeding was ...

    • Neutron Activation Procedures for Silver Analysis in Precipitation 

      Warburton, J. A.; Young, L. G. (American Meteorological Society, 1968)
      Laboratory techniques have been developed for concentrating and isolating silver from aqueous samples. When these concentrated samples are activated in a thermal neutron flux of 4 ? 1012n cm?2 sec?1, quantitative measurements ...

    • Atmospheric Diffusion of Particulate Matter Released from an Elevated Continuous Source 

      Stewart, Robert E. (American Meteorological Society, 1968)
      Dustfall simulation experiments were conducted to estimate the ground-level deposition pattern. Batches of different size glass microspheres (50?200 ?) were continuously released into the atmosphere from an elevated point ...

    • Evaporative Power in the Tropical Forest of the Panama Canal Zone 

      Read, Robert G. (American Meteorological Society, 1968)
      The physical processes that affect evapotranspiration and the technique of measuring the drying influence of the air in the tropical forest of the Panama Canal Zone during the rainy season were examined. The time rate of ...

    • An Investigation of Turbulence Within the Forest 

      McBean, Gordon A. (American Meteorological Society, 1968)
      A Gill propeller vertical anemometer and wet- and dry-bulb thermocouples were used to measure the turbulence within a forest canopy. Preliminary trials were run in a 65-ft pine forest and five trials of 10 min duration ...

    • Simulation of the Temperature, Humidity and Evaporation Profiles in a Leaf Canopy 

      Waggoner, Paul E.; Reifsnyder, William E. (American Meteorological Society, 1968)
      The proposed model synthesizes profiles of temperature, humidity and evaporation in a canopy of leaves from meteorological conditions at canopy top, from the temperature and humidity at the soil surface, from a leaf ...

    • Small-Scale Wind and Temperature Structure as Evidenced by Meteorological Rocket Systems 

      Miller, A. J.; Woolf, H. M.; Finger, F. G. (American Meteorological Society, 1968)
      Results of comparisons of wind and temperature data obtained by closely spaced launchings of Japanese MT-135 and American ARCAS meteorological rocket systems are presented. In general, smoothed temperature profiles show a ...

    • Case Studies of the Distribution of CAT in the Troposphere and Stratosphere 

      Panofsky, Hans A.; Dutton, John A.; Hemmerich, Kurt H.; McCreary, G.; Loving, N. V. (American Meteorological Society, 1968)
      Two separate case studies of clear air turbulence are presented, one in the stratosphere over the Rocky Mountains, the other in the upper troposphere over the midwestern plains. The mechanism in both situations appears to ...

    • The Frequency Distribution of Lagos/Ikeja Wind Gusts 

      Okulaja, F. Ola (American Meteorological Society, 1968)
      In a majority of cases, the frequency distribution of maximum values of meteorological elements is either normal or skewed positively, although good agreement with the normal distribution is not generally found. Several ...

    • The Variation of Gust Factors with Mean Wind Speed and with Height 

      Davis, Francis K.; Newstein, Herman (American Meteorological Society, 1968)
      Records from wind instruments installed on a 1000-ft tower were analyzed for gustiness characteristics. The results show that gust factors decrease with increasing wind speed, decrease with increasing height, and have no ...

    • Wind Disturbance by a Vertical Cylinder in the Atmospheric Surface Layer 

      Dabberdt, Walter F. (American Meteorological Society, 1968)
      The velocity distribution in the neighborhood of a cylindrical obstacle was measured over the frozen surface of Lake Mendota, Madison, Wis. Non-dimensional isotach patterns were constructed depicting the velocity distribution ...

    • Tower-Induced Errors in Wind Profile Measurements 

      Dabberdt, Walter F. (American Meteorological Society, 1968)
      An investigation of the effect of a meteorological tower on the measurement of wind speed was conducted at Brookhaven National Laboratory. Reductions up to 35% occur in the wake. The distribution of the velocity deficit ...

    • Investigation of a Complex Mountain Wave Situation 

      Reynolds, Ralph D.; Lamberth, Roy L.; Wurtele, M. G. (American Meteorological Society, 1968)
      A complex mountain lee wave was recorded by radar-tracked superpressure balloons at White Sands Missile Range on 6 May 1965 at a mean altitude of 3.5 km MSL; simultaneously, a very weak wave was recorded at 7 km. The lower ...

    • Kananaskis Valley Winds in Summer 

      MacHattie, L. B. (American Meteorological Society, 1968)
      Anemograph charts from three stations in a north-south valley were analyzed to find the degree to which average diurnal variations were explainable on the basis of valley wind theory and local topography. Prominent diurnal ...

    • Kinematics of the Low-Level Jet 

      Bonner, W. D.; Esbensen, S.; Greenberg, R. (American Meteorological Society, 1968)
      Winds and vertical velocities are examined in ten southerly low-level jets and then averaged in coordinate systems centered on the jet. The jet at 0600 CST is strongly supergeostrophic but is reflected in both geostrophic ...

    • An Objective Analysis of Wind Data for Energy Budget Studies 

      Gruber, Arnold; O'Brien, James J. (American Meteorological Society, 1968)
      An objective technique for adjusting wind data, such that the total mass divergence in a volume of the atmosphere is zero, is developed. The adjustment is obtained by applying a least-squares smoothing with a Lagrangian ...

    • Some Aspects of High Latitude Southern Hemisphere Summer Circulation as Viewed by ESSA 3 

      Streten, N. A. (American Meteorological Society, 1968)
      The computer-generated digital mosaics of daily cloud photographs obtained by the ESSA 3 satellite were studied for the Southern Hemisphere south of 40S for the period of the southern summer, December 1966 to February 1967. ...