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Airborne hyperspectral detection of microbial mat pigmentation in Rangiroa atoll (French Polynesia)
Author(s) -
Andréfouët Serge,
Payri Claude,
Hochberg Eric J.,
Che Lydie Mao,
Atkinson Marlin J.
Publication year - 2003
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.2003.48.1_part_2.0426
Subject(s) - hyperspectral imaging , atoll , remote sensing , environmental science , altitude (triangle) , benthic zone , chlorophyll a , imaging spectrometer , environmental chemistry , oceanography , spectrometer , chemistry , botany , geology , biology , optics , physics , geometry , mathematics , reef
The pigmentation of a cyanobacterial mat located in Rangiroa atoll (French Polynesia) was characterized using low‐altitude (500 m) Compact Airborne Spectrometer Imager hyperspectral measurements. Peaks in second and fourth derivatives of the reflective absorptance can be explained by chlorophyll and carotenoid pigments, which were independently identified by high‐pressure liquid chromatography. Phycobilin pigments were also detected from airborne measurements. The study confirms the extensibility of derivative spectroscopy from in vivo to highresolution remote sensing measurements for biology and geochemistry investigations in marine communities.