@Article{WatanabeAlcâStec:2018:HiPeCh,
author = "Watanabe, Fernanda Sayuri Yoshino and Alc{\^a}ntara, Enner and
Stech, Jos{\'e} Luiz",
affiliation = "{Universidade Estadual Paulista (UNESP)} and {Universidade
Estadual Paulista (UNESP)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "High performance of chlorophyll-a prediction algorithms based on
simulated OLCI Sentinel-3A bands in cyanobacteria-dominated inland
waters",
journal = "Advances in Space Research",
year = "2018",
volume = "62",
number = "2",
pages = "265--273",
month = "July",
keywords = "Harmful algal bloom, Case-2 waters, Remote sensing, Water
quality.",
abstract = "In this research, we have investigated whether the chlorophyll-a
(chl a) retrieval algorithms based on OLCI Sentinel-3A bands are
suitable for cyanobacteria-dominated waters. Phytoplankton
assemblages model optical properties of the water, influencing the
performance of bio-optical algorithms. Understanding these
processes is important to improve the prediction of photoactive
pigments in order to use them as a proxy for trophic state and
harmful algal bloom. So that, both empirical and semi-analytical
approaches designed for different inland waters were tested. In
addition, empirical models were tuned based on dataset collected
in situ. The study was conducted in the Funil hydroelectric
reservoir, where chl a ranged from 2.33 to 208.68 mg m3 in May
2012 (austral fall) and 4.37 to 306.03 mg m3 in October 2012
(austral spring). OLCI Sentinel-3A bands were tested in existing
algorithms developed for other sensors and new band combinations
were compared to analyze the errors produced. Normalized
Difference Chlorophyll Index (NDCI) exhibited the best
performance, with a Normalized Root Mean Square Error (NRMSE) of
9.30%. Result showed that wavelength at 665 nm is adequate to
estimate chl a, although the maximum pigment absorption band is
shifted due to phycocyanin fluorescence at approximately 650 nm.
2018 COSPAR. Published by Elsevier Ltd. All rights reserved.",
doi = "10.1016/j.asr.2018.04.024",
url = "http://dx.doi.org/10.1016/j.asr.2018.04.024",
issn = "0273-1177 and 1879-1948",
language = "en",
targetfile = "watanabe_high.pdf",
urlaccessdate = "25 abr. 2024"
}