SPECTRAL TRANSMISSIVITY OF THE EARTH'S ATMOSPHERE IN THE 250 TO 500 WAVE NUMBER INTERVAL. PART III. A METHOD OF EXPERIMENTALLY DERIVING TRANSMISSIVITY,

Abstract

Experimental observations of the transparency of the earth's atmosphere in the 20 to 40 micron region of the far infrared were carried out at 111 feet below sea level, 10,150 feet above sea level and 14,250 feet above sea level. The resultant solar spectra were compared to the theoretically computed spectra using the Lorentz line shape and the tabulated half-widths, line strengths and positions, with consideration given to the time-varying meteorological conditions that the radiation encountered in the slant path from the sun to the instrument. A method for determining transmissivity from the experimental data is derived. Sample comparisons of the experimentally determined transmissivity and the observed spectra are shown. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1965
Accession Number
AD0467000

Entities

People

  • Charles W. Querfeld
  • Glenn B. Hoidale
  • James T. Hall
  • Ramon Mireles

Tags

DTIC Thesaurus Topics

  • Atmospheres
  • Experimental Data
  • Intervals
  • Observation
  • Radiation
  • Sea Level
  • Solar Spectrum
  • Spectra
  • Transmissivity
  • Transparencies

Fields of Study

  • Physics

Readers

  • Spectroscopy.