Remote Sensing of Atmospheric Optical Thickness and Sea-Water Attenuation When Submerged: Wavelength Selection and Anticipated Errors.

Abstract

Prior analysis and experimentation has provided strong support for determining the attenuation of optical radiation for the atmosphere and the water column above a submerged platform by measuring the absolute downwelling irradiance at two wavelengths. The technique requires knowing the two irradiance values and also: 1) the spectral irradiance of the sun outside the atmosphere; 2) the solar zenith angle; and 3) the depth at which the irradiances ae measured. With this capability in hand, the questions considered in this report are which wavelengths to use and the effect of errors in the measurement of irradiance and other parameters. Keywords: Light transmission; Atmospheric attenuation; Sea-water attenuation.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1987
Accession Number
ADA187609

Entities

People

  • R. W. Austin
  • T. J. Petzold

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Air Masses
  • Classification
  • Cloud Cover
  • Data Sets
  • Databases
  • Electromagnetic Wave Propagation
  • Equations
  • Latitude
  • Light Sources
  • Materials
  • Oceanography
  • Oceans
  • Optical Properties
  • Scattering
  • Sea Water
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Atmospheric Remote Sensing.
  • Spectroscopy.