Journal ArticleDOI
Adaptive semianalytical inversion of ocean color radiometry in optically complex waters.
TLDR
It is found that ocean color inversion with LMI is significantly sensitive to the a priori selection of the empirical parameters g0 and g1 of the equations relating the above-surface remote-sensing reflectance to the IOPs in the water column.Abstract:
To address the challenges of the parameterization of ocean color inversion algorithms in optically complex waters, we present an adaptive implementation of the linear matrix inversion method (LMI) [J. Geophys. Res.101, 16631 (1996)10.1029/96JC01414], which iterates over a limited number of model parameter sets to account for naturally occurring spatial or temporal variability in inherent optical properties (IOPs) and concentration specific IOPs (SIOPs). LMI was applied to a simulated reflectance dataset for spectral bands representing measured water properties of a macrotidal embayment characterized by a large variability in the shape and amplitude factors controlling the IOP spectra. We compare the inversion results for the single-model parameter implementation to the adaptive parameterization of LMI for the retrieval of bulk IOPs, the IOPs apportioned to the optically active constituents, and the concentrations of the optically active constituents. We found that ocean color inversion with LMI is significantly sensitive to the a priori selection of the empirical parameters g0 and g1 of the equations relating the above-surface remote-sensing reflectance to the IOPs in the water column [J. Geophys. Res.93, 10909 (1988)10.1029/JD093iD09p10909]. When assuming the values proposed for open-ocean applications for g0 and g1 [J. Geophys. Res.93, 10909 (1988)10.1029/JD093iD09p10909], the accuracy of the retrieved IOPs, and concentrations was substantially lower than that retrieved with the parameterization developed for coastal waters [Appl. Opt.38, 3831 (1999)10.1364/AO.38.003831] because the optically complex waters analyzed in this study were dominated by particulate and dissolved matter. The adaptive parameterization of LMI yielded consistently more accurate inversion results than the single fixed SIOP model parameterizations of LMI. The adaptive implementation of LMI led to an improvement in the accuracy of apportioned IOPs and concentrations, particularly for the phytoplankton-related quantities. The adaptive parameterization encompassing wider IOP ranges were more accurate for the retrieval of bulk IOPs, apportioned IOPs, and concentration of optically active constituents.read more
Citations
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Journal ArticleDOI
Sensor capability and atmospheric correction in ocean colour remote sensing
TL;DR: An overview of the state of the art in atmospheric correction algorithms is provided, recent advances are highlighted and the possible potential for hyperspectral data to address the current challenges is discussed.
Journal ArticleDOI
Remote sensing of inland waters: challenges, progress and future directions
TL;DR: In this article, a special issue on Remote Sensing of Inland Waters comprises 16 articles on freshwater ecosystems around the world ranging from lakes and reservoirs to river systems using optical data from a range of in situ instruments as well as airborne and satellite platforms.
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A review of ocean color remote sensing methods and statistical techniques for the detection, mapping and analysis of phytoplankton blooms in coastal and open oceans
David Blondeau-Patissier,James F.R. Gower,Arnold G. Dekker,Arnold G. Dekker,Stuart R. Phinn,Vittorio E. Brando,Vittorio E. Brando +6 more
TL;DR: In this paper, a comprehensive review of multispectral ocean color sensor data is presented to understand the spatio-temporal patterns of phytoplankton blooms and their triggering factors.
Journal ArticleDOI
Generalized ocean color inversion model for retrieving marine inherent optical properties
P. Jeremy Werdell,Bryan A. Franz,Sean W. Bailey,Gene C. Feldman,Emmanuel Boss,Vittorio E. Brando,Mark Dowell,Takafumi Hirata,Samantha Lavender,Zhongping Lee,Hubert Loisel,Stéphane Maritorena,Frédéric Mélin,Timothy S. Moore,Timothy J Smyth,David Antoine,Emmanuel Devred,Odile Fanton d'Andon,Antoine Mangin +18 more
TL;DR: The theoretical basis of GIOP is described, a preliminary default configuration for GIOP (GIOP-DC) is proposed, and its comparable performance to other popular SAAs is presented and the sensitivities of their output to their parameterization are quantified.
Journal ArticleDOI
Remote Sensing of Coral Reefs for Monitoring and Management: A Review
John D. Hedley,Chris Roelfsema,Iliana Chollett,Alastair R. Harborne,Scott F. Heron,Scarla J. Weeks,William J. Skirving,Alan E. Strong,C. Mark Eakin,Tyler Christensen,Victor S Ticzon,Sonia Bejarano,Peter J. Mumby +12 more
TL;DR: A clear conclusion of the review is that advances in both sensor technology and processing algorithms continue to drive forward remote sensing capability for coral reef mapping, particularly with respect to spatial resolution of maps, and synthesis across multiple data products.
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