@Article{AndradeBerCarAlcKam:2018:AsQuAl,
author = "Andrade, Caroline and Bernarde, Nariane and Carmo, Alisson and
Alc{\^a}ntara, Enner and Kampel, Milton",
affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Universidade de
S{\~a}o Paulo (USP)} and {Universidade de S{\~a}o Paulo (USP)}
and {Universidade Estadual Paulista (UNESP)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Assessment of quasi-analytical algorithm for estimating the
inherent optical properties in a complex cascade system",
journal = "Journal of Applied Remote Sensing",
year = "2018",
volume = "12",
number = "3",
pages = "e036014",
month = "Sept.",
keywords = "bio-optical models, water quality, water resources monitoring,
remotely sensed data.",
abstract = "Several quasi-analytical algorithm (QAA) versions were developed
to make it suitable for different inland water systems. QAA(BBHR)
and QAA(OMW) were reparameterized based on two reservoirs from the
Tiete River cascading system (Sao Paulo State, Brazil), which
present widely differing compositions. Considering the purpose of
monitoring the entire cascade through a unique QAA version, we
aimed to assess the suitability of these two QAA versions and, in
addition, another two QAA native forms (versions 5 and 6), for
retrieving inherent optical properties (IOPs) in Ibitinga
hydroelectric reservoir (IHR), situated in the same cascading
system. In addition to that, we addressed bio-optical
characterization of IHR, using spectral and water quality data
collected in a field campaign conducted in July 2016. Wide spatial
variability of optically significant constituent (OSC) in IHR and
colored dissolved organic matter predominance in its absorption
budget was observed. None of the tested QAA versions were
completely suitable in retrieving absorption coefficients for IHR
in all wavelengths. However, results for wavelengths commonly used
as proxy for OSC concentration retrieval were satisfactory in some
of the models. Therefore, the results obtained in this study shows
that QAAs versions can be used for specific purposes (e.g.,
chlorophyll-a mapping), by employing the best model for IOPs
retrieval at a specific wavelength. This highlights the challenge
of copying with high optical variability in cascading systems. In
this sense, further research is necessary, for either achieving a
QAA reparameterized version appropriate for aquatic systems with
widely differing optical properties or another analytical scheme.
(C) 2018 Society of Photo-Optical Instrumentation Engineers
(SPIE).",
doi = "10.1117/1.JRS.12.036014",
url = "http://dx.doi.org/10.1117/1.JRS.12.036014",
issn = "1931-3195",
language = "en",
targetfile = "andrade-assessment.pdf",
urlaccessdate = "27 abr. 2024"
}