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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 33 — Nov. 20, 2002
  • pp: 7058–7067

Remote sensing of oligotrophic waters: model divergence at low chlorophyll concentrations

Hela Mehrtens and Thomas Martin  »View Author Affiliations


Applied Optics, Vol. 41, Issue 33, pp. 7058-7067 (2002)
http://dx.doi.org/10.1364/AO.41.007058


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Abstract

The performance of the OC2 Sea-viewing Wide Field-of-view Sensor (SeaWiFS) algorithm based on 490- and 555-nm water-leaving radiances at low chlorophyll contents is compared with those of semianalytical models and a Monte Carlo radiative transfer model. We introduce our model, which uses two particle phase functions and scattering coefficient parameterizations to achieve a backscattering ratio that varies with chlorophyll concentration. We discuss the various parameterizations and compare them with existent measurements. The SeaWiFS algorithm could be confirmed within an accuracy of 35% over a chlorophyll range from 0.1 to 1 mg m-3, whereas for lower chlorophyll concentrations we found a significant overestimation of the OC2 algorithm.

© 2002 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(290.1350) Scattering : Backscattering
(290.5850) Scattering : Scattering, particles

History
Original Manuscript: January 18, 2002
Revised Manuscript: July 15, 2002
Published: November 20, 2002

Citation
Hela Mehrtens and Thomas Martin, "Remote sensing of oligotrophic waters: model divergence at low chlorophyll concentrations," Appl. Opt. 41, 7058-7067 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-33-7058

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