APPARENT SKY TEMPERATURES AT MILLIMETERWAVE FREQUENCIES

Abstract

Measurements of apparent sky temperatures taken over a one-year period at 15, 17 and 35 Gc are summarized. Sky temperature profiles for various meteorological conditions are presented as well as curves showing the percentage time distributions for various zenith angles. Such factors as absorption and radiation by oxygen and water vapor, extrapolation of the data to other geographical areas, and the relation between total attenuation of the atmosphere and sky temperature are discussed. A description of the radiometers and the calibration techniques are included.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1964
Accession Number
AD0605813

Entities

People

  • Karl N. Wulfsberg

Organizations

  • Air Force Cambridge Research Laboratories

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • C4I
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Altitude
  • Amplifiers
  • Atmospheric Attenuation
  • Attenuation
  • Attenuators
  • Cloud Cover
  • Clouds
  • Computational Science
  • Detectors
  • Electromagnetic Radiation
  • Elevation
  • Measurement
  • Surface Temperature
  • Temperature Gradients
  • Water Vapor

Fields of Study

  • Environmental science
  • Physics

Readers

  • Oceanography.
  • Phased Array Antenna Design.
  • Thermal Physics or Thermal Science.