Open AccessOptical discrimination of harmful Cochlodinium polykrikoides blooms in Korean coastal waters
Author(s) -
Yeseul Kim,
Sinjae Yoo,
Young Baek Son
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.0a1471
Subject(s) - algal bloom , dinoflagellate , red tide , ocean color , oceanography , environmental science , range (aeronautics) , remote sensing , phytoplankton , biology , geology , ecology , physics , materials science , astronomy , satellite , nutrient , composite material
We investigated the possibility of optically discriminating harmful algal blooms (HABs), focusing on Cochlodinium polykrikoides, the major HAB causative dinoflagellate species in Korean waters. We produced a large data set of simulated remote sensing reflectance (R rs ) spectra in a wide range of bio-optical conditions using Hydrolight software and bio-optical data provided by the International Ocean-Color Coordinating Group. The two R rs band ratios (R rs (555)/R rs (531) and R rs (488)/R rs (443)) were determined to be effective in discriminating high-density C. polykrikoides blooms. The results were consistent with in situ observations and seem applicable to diverse coastal environments. Our findings provide theoretical and quantitative criteria upon which in-water HAB detecting algorithms can be developed.