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General analytical representations of the observable reflectance function

  • Author(s): Preisendorfer, Rudolph W
  • et al.
Abstract

Report No. 5-1. Contract NObs-72039. The observable reflectance function, sometimes called the "up-down ratio," for natural light in the sea is nearly independent of depth within any uniform water-mass or stratum. Even small changes, however, may affect the range at which a downward looking observer can sight an object of very low contrast. This report presents a theoretical s tudy of the variation with depth of the observable reflectance function for natural light in the sea.

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