Title :
Fluorescence as a potential indicator of coral health
Author :
Holden, Heather ; Peddle, Derek ; LeDrew, Ellsworth
Author_Institution :
Dept. of Geogr., Waterloo Univ., Ont., Canada
Abstract :
Distinct coral chlorophyll fluorescence peaks have been measured in the field using an analytical spectral device (ASD) radiometer. Bleached coral reveals a distinctly different reflectance spectra than healthy coral due the presence of photosynthetic pigments. This spectral difference provides the distinction necessary to identify bleached coral from a remote sensing platform with a sensor of spectral sensitivity similar to that of the ASD. Field results are presented, and potential remote sensing applications are discussed in the context of in situ profile radiometer measures for the optical correction of hyperspectral airborne imagery
Keywords :
aquaculture; oceanographic techniques; remote sensing; water pollution measurement; analytical spectral device; bleached coral; chlorophyll fluorescence peak; coral health; coral reef; fluorescence spectra; healthy coral; hyperspectral airborne imagery; indicator; marine animal; marine biology; marine pollution; measurement technique; multispectral remote sensing; ocean; optical remote sensing; photosynthetic pigment; reflectance spectra; spectral difference; tropical region; underwater light; water pollution; Bleaching; Fluorescence; Hyperspectral sensors; Optical sensors; Pigments; Radiometry; Reflectivity; Remote sensing; Spectral analysis; Variable speed drives;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516253