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Proceedings Paper

Spectral analysis of an AVIRIS image of San Pedro Channel
Author(s): Curtiss O. Davis; Michael K. Hamilton; W. Joseph Rhea; Jeannette M. van den Bosch; Kendall L. Carder; Robert G. Steward
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Paper Abstract

Optical case-2 waters near an ocean outfall were examined, using a combination of AVIRIS imagery and ship-based surface and profile bio-optical measurements. Bio-optical mooring data were useful in determining the hydrodynamics of the area. After correcting the image to units of water-leaving radiance (Lw), excellent agreement was achieved between remotely-sensed and in- situ measurements. Spectra from visibly different areas were extracted and compared to the in-water measurements and to each other. Near-shore spectra were dominated by the presence of suspended sediment from beach erosion. Spectra from the central part of the image had a characteristic signature from particulates from either the outfall or resuspension of bottom material or both. At the offshore edge of the image elevated levels of chlorophyll had the greatest influence on spectral shape. Backscatter at 660 nm was calculated from the AVIRIS data and a backscatter image was produced which clearly showed the distribution of the two types of sediments.

Paper Details

Date Published: 23 September 1993
PDF: 13 pages
Proc. SPIE 1937, Imaging Spectrometry of the Terrestrial Environment, (23 September 1993); doi: 10.1117/12.157070
Show Author Affiliations
Curtiss O. Davis, Jet Propulsion Lab. (United States)
Michael K. Hamilton, Jet Propulsion Lab. (United States)
W. Joseph Rhea, Jet Propulsion Lab. (United States)
Jeannette M. van den Bosch, Jet Propulsion Lab. (United States)
Kendall L. Carder, Univ. of South Florida (United States)
Robert G. Steward, Univ. of South Florida (United States)

Published in SPIE Proceedings Vol. 1937:
Imaging Spectrometry of the Terrestrial Environment
Gregg Vane, Editor(s)

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