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Applied Optics

Applied Optics


  • Vol. 41, Iss. 30 — Oct. 20, 2002
  • pp: 6477–6488

Variability of the downwelling diffuse attenuation coefficient with consideration of inelastic scattering

Xiaobing Zheng, Tommy Dickey, and Grace Chang  »View Author Affiliations

Applied Optics, Vol. 41, Issue 30, pp. 6477-6488 (2002)

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In situ time-series measurements of spectral diffuse downwelling irradiance from the Bermuda Testbed Mooring are presented. Averaged diffuse attenuation coefficients of downwelling irradiance, K d , and their elastic and inelastic components are investigated at seven wavelengths. At shorter wavelengths (<510 nm), K d is weakly dependent on the solar zenith angle owing to the prevailing scattering effect and therefore can be considered a quasi-inherent optical property. At longer wavelengths (>510 nm), K d shows a strong dependence on the solar zenith angle. As depth increases, inelastic scattering plays a greater role for the underwater light field at red wavelengths.

© 2002 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(010.7340) Atmospheric and oceanic optics : Water
(030.5620) Coherence and statistical optics : Radiative transfer
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(290.5860) Scattering : Scattering, Raman

Original Manuscript: June 14, 2002
Revised Manuscript: June 14, 2002
Published: October 20, 2002

Xiaobing Zheng, Tommy Dickey, and Grace Chang, "Variability of the downwelling diffuse attenuation coefficient with consideration of inelastic scattering," Appl. Opt. 41, 6477-6488 (2002)

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