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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 15 — May. 20, 2001
  • pp: 2384–2397

Comparison of the ocean inherent optical properties obtained from measurements and inverse modeling

Hubert Loisel, Dariusz Stramski, B. Greg Mitchell, Frank Fell, Vincent Fournier-Sicre, Bertand Lemasle, and Marcel Babin  »View Author Affiliations


Applied Optics, Vol. 40, Issue 15, pp. 2384-2397 (2001)
http://dx.doi.org/10.1364/AO.40.002384


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Abstract

A model developed recently by Loisel and Stramski [Appl. Opt. 39, 3001–3011 (2000)] for estimating the spectral absorption a(λ), scattering b(λ), and backscattering b b (λ) coefficients in the upper ocean from the irradiance reflectance just beneath the sea surface R(λ, z = 0-) and the diffuse attenuation of downwelling irradiance within the surface layer 〈K d (λ)〉1 is compared with measurements. Field data for this comparison were collected in different areas including off-shore and near-shore waters off southern California and around Europe. The a(λ) and b b (λ) values predicted by the model in the blue-green spectral region show generally good agreement with measurements that covered a broad range of conditions from clear oligotrophic waters to turbid coastal waters affected by river discharge. The agreement is still good if the model estimates of a(λ) and b b (λ) are based on R(λ, z = 0-) used as the only input to the model available from measurements [as opposed to both R(λ, z = 0-) and 〈K d (λ)〉1 being measured]. This particular mode of operation of the model is relevant to ocean-color remote-sensing applications. In contrast to a(λ) and b b (λ) the comparison between the modeled and the measured b(λ) shows large discrepancies. These discrepancies are most likely attributable to significant variations in the scattering phase function of suspended particulate matter, which were not included in the development of the model.

© 2001 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(030.5620) Coherence and statistical optics : Radiative transfer
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(290.5860) Scattering : Scattering, Raman

History
Original Manuscript: July 17, 2000
Revised Manuscript: January 30, 2001
Published: May 20, 2001

Citation
Hubert Loisel, Dariusz Stramski, B. Greg Mitchell, Frank Fell, Vincent Fournier-Sicre, Bertand Lemasle, and Marcel Babin, "Comparison of the ocean inherent optical properties obtained from measurements and inverse modeling," Appl. Opt. 40, 2384-2397 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-15-2384

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