A STUDY OF ICE FOG AND ICE-FOG NUCLEI AT FAIRBANKS, ALASKA. PART 2

Abstract

Studies on ice fog and ice crystals have been conducted at Fairbanks, Alaska, since 1962. USA CRREL Research Report 150, Part I, presented the results of the first study, conducted during January and February 1962, which was concerned with the identification of nuclei of ice crystals, ice-fog crystals, and supercooled droplets; counts of condensation nuclei; and measurement of ice-fog concentrations and liquid water content. The second study of the series, conducted during January and February 1963, is the subject of this report. This investigation encompassed (1) a meteorological study of conditions favoring the occurrence and persistence of ice fog; (2) observations of ice-crystal formation with water vapor and hydrocarbon ice-forming nuclei provided by combustion products from a power plant chimney and an automobile exhaust; (3) design of a cascade impactor for use with a tethered blimp; (4) studies of the size relationship between ice-fog crystals and their nuclei; and (5) a comparison of size distributions between some seeding agents and natural ice-fog crystals, and their nuclei.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1965
Accession Number
AD0676811

Entities

People

  • Harold W. O'brien
  • Motoi Kumai

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Automobile Exhaust
  • Brownian Motion
  • Chemical Properties
  • Combustion
  • Combustion Products
  • Condensation
  • Condensation Nuclei
  • Electric Power
  • Electric Power Plants
  • Exhaust Gases
  • Heat Energy
  • Ice Fog
  • Measurement
  • Sea Level
  • Temperature Inversion
  • Transition Temperature
  • Water Vapor

Readers

  • Aerosol Science/Aerosol Physics
  • Atmospheric Remote Sensing.
  • Technical Research and Report Writing.