Document Type

Article

Publication Title

Optics Express

Rights and Access Note

This Item is protected by copyright and/or related rights. You are free to use this item in any way that is permitted by copyright and related rights legislation that applies to your use. Rights assessment remains the responsibility of the researcher. In addition, no permission is required from the rights-holder(s) for non-commercial uses.

Publication Date

12-30-2013

First Page

32611

Last Page

32622

Issue Number

26

Volume Number

21

Abstract/ Summary

Time-series of marine inherent optical properties (IOPs) from ocean color satellite instruments provide valuable data records for studying long-term time changes in ocean ecosystems. Semi-Analytical algorithms (SAAs) provide a common method for estimating IOPs from radiometric measurements of the marine light field. Most SAAs assign constant spectral values for seawater absorption and backscattering, assume spectral shape functions of the remaining constituent absorption and scattering components (e.g., phytoplankton, non-Algal particles, and colored dissolved organic matter), and retrieve the magnitudes of each remaining constituent required to match the spectral distribution of measured radiances. Here, we explore the use of temperature- and salinity-dependent values for seawater backscattering in lieu of the constant spectrum currently employed by most SAAs. Our results suggest that use of temperature- and salinity-dependent seawater spectra elevate the SAA-derived particle backscattering, reduce the non-Algal particles plus colored dissolved organic matter absorption, and leave the derived absorption by phytoplankton unchanged. © 2013 Optical Society of America.

Citation/Publisher Attribution

P. Jeremy Werdell, Bryan A. Franz, Jason T. Lefler, Wayne D. Robinson, and Emmanuel Boss, "Retrieving marine inherent optical properties from satellites using temperature and salinity-dependent backscattering by seawater," Opt. Express 21, 32611-32622 (2013)

Publisher Statement

©2013 Optical Society of America

DOI

10.1364/OE.21.032611

Version

publisher's version of the published document

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In Copyright - Educational Use Permitted.