Abstract

Passive ocean-color data at 32 wavelengths in the visible domain and laser-induced fluorescence line heights of chlorophyll and phycoerythrin, measured simultaneously from an aircraft in the New York Bight area, are used to examine the problem of developing algorithms for pigment retrieval from ocean-color data that would be capable of distinguishing between chlorophyll and phycoerythrin. Using factor analysis, it is shown that it is indeed possible to develop such algorithms. Furthermore, the wavelengths used in the algorithms can be reduced from 32 to 6 (similar to the SeaWiFS channels) without much loss in information. These multiwavelength algorithms yield significantly higher correlation coefficients for chlorophyll compared with the conventional blue–green ratio used for retrieval of this pigment. The Coastal Zone Color Scanner wavelengths appear to be inadequate for quantitative retrieval of the phycoerythrin signal.

© 1994 Optical Society of America

Chlorophyll pigment concentration using spectral curvature algorithms: an evaluation of present and proposed satellite ocean color sensor bands

Frank E. Hoge and Robert N. Swift
Appl. Opt. 25(20) 3677-3682 (1986)

Asymmetrical spectral curvature algorithms: oceanic-constituents sensitivities

Frank E. Hoge
Appl. Opt. 33(33) 7764-7769 (1994)

Active–passive correlation spectroscopy: a new technique for identifying ocean color algorithm spectral regions

Frank E. Hoge and Robert N. Swift
Appl. Opt. 25(15) 2571-2583 (1986)

Local algorithms using SeaWiFS data for the retrieval of phytoplankton, pigments, suspended sediment, and yellow substance in coastal waters

S. Tassan
Appl. Opt. 33(12) 2369-2378 (1994)

Reducing variability that is due to secondary pigments in the retrieval of chlorophyll a concentration from marine reflectance: a case study in the western equatorial Pacific Ocean

Lydwine Gross, Robert Frouin, Cécile Dupouy, Jean Michel André, and Sylvie Thiria
Appl. Opt. 43(20) 4041-4054 (2004)