RESEARCH ON CHARACTERISTICS AND EFFECTS OF SEVERE STORMS.

Abstract

The chief results of the work are as follows: Measurement of air drag and fallspeeds of artificial hailstones. Derivation of an empirical law of rime density; studies of internal structure of rime and hail. Establishment of a simple calibration procedure for meteorological radars. Measurement of radar reflectivity of perspex and ice spheres; discovery of strong effect of surface wetting. Collection of radar and other data on a severe hailstorm in unprecedented detail, leading to definition of new radar echo features (wall, forward overhang, echo-free vault, dome) and to A new dynamical model of cumulonimbus, in which vertical wind shear and precipitation are essential features. A new theory of the growth of large hail, not calling upon special embryos. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1964
Accession Number
AD0603085

Entities

Organizations

  • Imperial College London

Tags

DTIC Thesaurus Topics

  • Biological Phenomena
  • Calibration
  • Climate Change
  • Ecological And Environmental Phenomena
  • Ecological And Environmental Processes
  • Hail
  • Measurement
  • Measuring Instruments
  • Meteorological Radar
  • Precipitation
  • Radar
  • Reflectivity
  • Wind
  • Wind Shear

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Polar and Arctic Studies
  • Radar Systems Engineering.