An Investigation of the Determination of Thermospheric Densities by Solar EUV Absorption.

Abstract

Analyzed are various techniques for determining the number densities of atmospheric constituents. The experimental data that these techniques employ are absorption profiles of EUV solar radiation. One method analyzed is that of computing the densities by solving the linear extinction coefficient equations. Methods that assume diffusive equilibrium and a knowledge of the temperature profile are also analyzed. A method of determining an optimal payload of wavelength detectors to be used for computing the densities in a manner which minimizes the effect of the statistical uncertainty in the absorption profiles is presented.

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA012291

Entities

People

  • Peter W. Lindstrom

Tags

DTIC Thesaurus Topics

  • Absorption
  • Coefficients
  • Detectors
  • Equations
  • Experimental Data
  • Extinction
  • Mathematics
  • Radiation
  • Solar Radiation
  • Uncertainty

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Space/Atmospheric Physics.
  • Spectroscopy.