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Proceedings Paper

Evaluation of total suspended matter concentration in wave breaking zone using multispectral satellite images
Author(s): Ana C. Teodoro; Andre R. S. Marcal; Fernando V. Gomes
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Paper Abstract

Remote sensing techniques are a powerful tool for monitoring littoral zones. Optical sensors can be used to quantify water quality parameters such as suspended sediments. It is possible to estimate the Total Suspended Matter (TSM) concentration using multi-spectral satellite images. In order to extract meaningful information, the satellite data needs to be validated with in situ measurements. The main objective of this work was to quantify the TSM in sea breaking zone, using multi-spectral satellite images. A part of the northwest coast of Portugal, centered around Aveiro, was chosen as a test area. Several methodologies have been used to establish a relationship between the above sea water reflectance and the TSM concentration. Various field trips were done in order to simultaneously obtain water samples and reflectance measurements. A relationship between TSM concentration and reflectance was established for the range 400 - 900 nm. Data from Landsat TM, SPOT HRVIR and ASTER were calibrated and geometric corrected. The reflectance values were used to estimate the TSM concentration using the relationships established using the field measurements. The model coefficients and correlation factors, for identical bands on different sensors, presented a high similarity. The results have been incorporated in a Geographical Information System (GIS).

Paper Details

Date Published: 16 November 2004
PDF: 8 pages
Proc. SPIE 5569, Remote Sensing of the Ocean and Sea Ice 2004, (16 November 2004); doi: 10.1117/12.564275
Show Author Affiliations
Ana C. Teodoro, Univ. do Porto (Portugal)
Andre R. S. Marcal, Univ. do Porto (Portugal)
Fernando V. Gomes, Univ. do Porto (Portugal)

Published in SPIE Proceedings Vol. 5569:
Remote Sensing of the Ocean and Sea Ice 2004
Charles R. Bostater Jr.; Rosalia Santoleri, Editor(s)

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