Structure and Modification of Clouds and Fogs.

Abstract

Considerable investigation of electric field-water droplet interaction has been conducted and may offer a mechanism for the rain gush. Charge separation by precipitation and the production of aerosols from charged electrodes at potentials below breakdown have also been investigated. The research into electrical tornado mechanisms and the field study of point discharge current previously reported have been continued. Studies have been conducted on water-to-air transfer of bacteria. Experimental studies of droplet breakup, freezing, and wake effect have been carried out. A new model of hail growth is proposed which does not require wind shear to maintain the hailstone aloft for extended periods of time. A cloud model has been computer tested to ascertain the feasibility of extensive cloud production by silver iodide seeding. The large vertical wind tunnel has been further refined, and the dropsonde, intended to obtain drop size and concentratio spectra, has been field tested, as has an ice crystal detector for aircraft use. An optical lightning detector has been developed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1970
Accession Number
AD0734063

Entities

People

  • Bernard Vonnegut
  • Duncan C. Blanchard
  • Robert A. Cudney

Organizations

  • State University of New York

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Bacteria
  • Biological Phenomena
  • Computers
  • Crystal Detectors
  • Detectors
  • Dropsondes
  • Ecological And Environmental Phenomena
  • Ecological And Environmental Processes
  • Electric Fields
  • Electrodes
  • Hail
  • Precipitation
  • Production
  • Wind
  • Wind Shear
  • Wind Tunnels

Fields of Study

  • Environmental science

Readers

  • Aerosol Science/Aerosol Physics
  • Atmospheric Science/Meteorology
  • Software Engineering