Analysis of spectral signals emanating from vegetated and nonvegetated substrates in shallow water bodies

Mahtab A. Lodhi

doi:10.1117/12.372884

16 December 1999 Analysis of spectral signals emanating from vegetated and nonvegetated substrates in shallow water bodies

Mahtab A. Lodhi

Author Affiliations +

Proceedings Volume 3854, Pattern Recognition, Chemometrics, and Imaging for Optical Environmental Monitoring; (1999) https://doi.org/10.1117/12.372884
Event: Photonics East '99, 1999, Boston, MA, United States

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.

Citation Download Citation

Mahtab A. Lodhi "Analysis of spectral signals emanating from vegetated and nonvegetated substrates in shallow water bodies", Proc. SPIE 3854, Pattern Recognition, Chemometrics, and Imaging for Optical Environmental Monitoring, (16 December 1999); https://doi.org/10.1117/12.372884

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available