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Proceedings Paper

A probabilistic sensitivity analysis of water-leaving radiance to water constituents in coastal shallow waters
Author(s): Julio Martin Duarte; Miguel Velez-Reyes; Stefano Tarantola; Fernando Gilbes; Roy Armstrong
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Paper Abstract

An important step to determine whether certain coastal environment parameters can be estimated from remote sensing measurements is to establish their identifiability from the water leaving remote sensing reflectance. This work addresses the sensitivity analysis of water leaving remote sensing reflectance to water constituents. The model used in the sensitivity analysis is Hydrolight, a radiative transfer code for ocean waters. We use the Morris factor screening method to determine which parameters have a substantial influence on the remote sensing reflectance. From Morris results, we realize a more precise sensitivity analysis focusing on the most influential parameters, using variance decomposition (Sobol method). As an important example of application, we perform a sensitivity analysis of coral reefs in coastal shallow waters, where the concentrations of Chlorophyll, yellow substance and suspended sediments were limited to a feasible range of variability. The results of the sensitivity analysis lead us to the formulation of band relationships for the estimation of water depth and seabed reflectance in coral reefs.

Paper Details

Date Published: 5 November 2003
PDF: 12 pages
Proc. SPIE 5155, Ocean Remote Sensing and Imaging II, (5 November 2003); doi: 10.1117/12.507808
Show Author Affiliations
Julio Martin Duarte, Univ. of Puerto Rico/Mayaguez (United States)
Miguel Velez-Reyes, University of Puerto Rico/Mayaguez (United States)
Stefano Tarantola, Joint Research Centre of the European Commission (Italy)
Fernando Gilbes, Univ. of Puerto Rico/Mayaguez (United States)
Roy Armstrong, Univ. of Puerto Rico/Mayaguez (United States)

Published in SPIE Proceedings Vol. 5155:
Ocean Remote Sensing and Imaging II
Robert J. Frouin; Gary D. Gilbert; Delu Pan, Editor(s)

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