ON THE ORIGIN AND CLIMATOLOGY OF NOCTILUCENT CLOUDS

Abstract

A review is made of the existing concepts of the constitution or origin of the clouds, and a mechanism is suggested which might explain their apparent dependence on latitude. Their frequency of occurrence with respect to latitude, longitude, time of year, and other factors, is analyzed in detail. Year-by-year changes in the number of occurrences are considered in relation to the '11-year' sunspot cycle. A comprehensive sample of data on cloud movement is summarized, although in view of the highly complicated field of motion in noctilucent clouds, this subject is difficult to treat satisfactorily. A comparison is made of rocket samples of particle size and concentration with values deduced from polarization measurements.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1964
Accession Number
AD0446389

Entities

People

  • R. S. Quiroz

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Altitude
  • Central Europe
  • Cloud Cover
  • Clouds
  • Condensation
  • Depression Angles
  • Frequency
  • High Latitudes
  • Latitude
  • Longitude
  • Meteorological Phenomena
  • Noctilucent Clouds
  • North America
  • Particle Size
  • Particles
  • Spacecraft
  • Wind

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Theoretical Analysis.