Detection of Atmospheric Carbon Dioxide from a Shuttle-Borne Lidar.

Abstract

Remote sensing of atmospheric carbon dioxide from a shuttle-borne differential absorption lidar (DIAL) was investigated. The investigation followed the basic frequency recommendations of L. C. Korb, which included 'on'-resonance frequency at the P(34) line of the (11'0-03'0) sub I absorption band of CO2. Extinction coefficients for CO2, H2O, CO, O3, Rayleigh, and Mie scattering were determined to compute estimated return signal strengths from various altitudes. Direct detection was found to be unsuitable, but heterodyne detection provided adequate signal-to-noise ratios. Cross sections for hot CO2 were also calculated, and maximum detectable CO2 concentrations were determined. Finally, an error analysis of predicted CO2 concentrations was made, which determined that due to the large CO2 'on'-resonance extinction coefficient, accurate measurements of CO2 below five kilometers could not be made. Keywords: Water; Carbon monoxide; Ozone. (Theses)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA164308

Entities

People

  • Robert H. Wank

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Atmospheric Attenuation
  • Carbon Monoxide
  • Detection
  • Detectors
  • Dielectric Gases
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Frequency
  • Laser Applications
  • Laser Beams
  • Lasers
  • Measurement
  • Mie Scattering
  • Optics
  • Quantum Yields
  • Scattering

Readers

  • Radar Systems Engineering.
  • Spectroscopy.