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Proceedings Paper

Analysis of spectral signals emanating from vegetated and nonvegetated substrates in shallow water bodies
Author(s): Mahtab A. Lodhi
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Paper Abstract

Depending on depth, transparency, and wavelength, the composite upwelling signals from water bodies with vegetated and non-vegetated bottoms are attributable to the water column constituents, the submerged vegetation canopy and/or the substrate. Composite spectral signals form a surrogate sandy vegetated and non-vegetated sandy bottom sat varying depths in a tank of water were analyzed to assess the impact of the substrate in the presence of clear water. Submerged vegetation at a depth of 130 cm in a tank of clear water was detectable in both the visible and NIR regions. In the case of non-vegetated sandy bottom, the maximum separability of the composite upwelling signal from bottom at varying depths was recorded in wavelength region between 600 and 700 nm. Bottom at depth greater than 50 cm did not impact the upwelling signals in wavelength range beyond 744 nm.

Paper Details

Date Published: 16 December 1999
PDF: 7 pages
Proc. SPIE 3854, Pattern Recognition, Chemometrics, and Imaging for Optical Environmental Monitoring, (16 December 1999); doi: 10.1117/12.372884
Show Author Affiliations
Mahtab A. Lodhi, Univ. of New Orleans (United States)

Published in SPIE Proceedings Vol. 3854:
Pattern Recognition, Chemometrics, and Imaging for Optical Environmental Monitoring
Khalid J. Siddiqui; DeLyle Eastwood, Editor(s)

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