Ocean Inherent Optical Property Determination from In-Water Light Field Measurements

Abstract

An algorithm is described and evaluated for determining the absorption and backscattering coefficients a(z) and bb(z) from measurements of the nadir-viewing radiance Lu(z) and downward irradiance Ed(z). The method, derived from radiative transfer theory, is similar to a previously proposed one for Eu(z) and Ed(z), and both methods are demonstrated with numerical simulations and field data. Numerical simulations and a sensitivity analysis show that good estimates of a(z) and bb(z) can be obtained if the assumed scattering phase function is approximately correct. In an experiment in Long Island Sound, estimates of a(z) derived with these methods agreed well with those obtained from an in situ reflecting tube instrument.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 20, 1999
Accession Number
ADA464514

Entities

People

  • Collin S. Roesler
  • Norman J. Mccormick
  • Rober Ta. Leathers

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Accuracy
  • Algorithms
  • Coefficients
  • Light Sources
  • Long Island Sound
  • Measurement
  • Military Research
  • Oceanography
  • Oceans
  • Optical Properties
  • Optics
  • Radiative Transfer
  • Remote Sensing
  • Scattering
  • Surface Properties
  • Surface Roughness

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Spectroscopy.