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Applied Optics

Applied Optics


  • Vol. 40, Iss. 9 — Mar. 20, 2001
  • pp: 1343–1353

Quasi-specular model for calculating the reflection of atmospheric-emitted infrared radiation from a rough water surface

Nicholas R. Nalli, William L. Smith, and Bormin Huang  »View Author Affiliations

Applied Optics, Vol. 40, Issue 9, pp. 1343-1353 (2001)

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A numerical model is developed for computation of the reflection of atmospheric-emitted IR radiance from a wind-roughened water body. The model assumes the Kirchhoff approximation for rough surface scattering. This allows application of the postulates of geometrical optics to determine the reflection of rays from an ensemble of wave facets. We performed the hemispherical integration with Gaussian quadrature by using an uplooking fast transmittance model. This calculation is simplified further through the concept of a reflection–diffusivity angle. The model compares favorably with observed radiance spectra obtained from the Marine-Atmospheric Emitted Radiance Interferometer during the Combined Sensor Program research cruise.

© 2001 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5700) Instrumentation, measurement, and metrology : Reflection
(240.6690) Optics at surfaces : Surface waves
(290.5880) Scattering : Scattering, rough surfaces

Original Manuscript: June 12, 2000
Revised Manuscript: December 5, 2000
Published: March 20, 2001

Nicholas R. Nalli, William L. Smith, and Bormin Huang, "Quasi-specular model for calculating the reflection of atmospheric-emitted infrared radiation from a rough water surface," Appl. Opt. 40, 1343-1353 (2001)

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