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Modeling Sea Bottom Hyperspectral Reflectance [PDF]
Over the near-ultraviolet (UV) and visible spectrum the reflectance from mineral compounds and vegetation is predominantly due to absorption and scattering in the bulk material. Except for a factor of scale, the radiative transfer mechanism is similar to
Georges Fournier +2 more
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Bottom reflectance is a significant parameter characterizing the bottom types for clear optically shallow waters, typically in oceanic islands and reefs.
Yunhan Ma +7 more
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An Improved Empirical Model for Retrieving Bottom Reflectance in Optically Shallow Water
Satellite remote sensing has become an essential observing system to obtain comprehensive information on the status of coastal habitats. However, a significant challenge in remote sensing of optically shallow water is to correct the effects of the water ...
Chaoyu Yang, Dingtian Yang
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Bottom Reflectance in Ocean Color Satellite Remote Sensing for Coral Reef Environments [PDF]
Most ocean color algorithms are designed for optically deep waters, where the seafloor has little or no effect on remote sensing reflectance. This can lead to inaccurate retrievals of inherent optical properties (IOPs) in optically shallow water ...
Martina Reichstetter +5 more
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Under anthropogenic disturbances and global warming, coral reef ecosystems are degrading, and there is growing concern about the changes in benthic habitats in shallow coral reef waters.
Benqing Chen +7 more
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Where light penetration is excellent, the combination of LiDAR (Light Detection And Ranging) and passive bottom reflectance (multispectral, hyperspectral) greatly aids environmental studies.
W. Charles Kerfoot +10 more
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Remote Sensing of the Water Quality Parameters for a Shallow Dam Reservoir
This study examines the chlorophyll a content and turbidity in the shallow dam reservoir of Lake Dobczyce. The analysis of satellite images for thirteen wavelength ranges enabled the selection of wavelengths applicable for a remote determination of ...
Andrzej Bielski, Cezary Toś
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Resonances in Acoustic Bottom Reflection and Their Relation to the Ocean Bottom Properties [PDF]
The acoustic reflection coefficient of the ocean bottom plotted versus frequency or angle often exhibits a complicated structure of peaks and dips. Features as these may be attributed to resonance phenomena, and the resonance structure, i.e., the distribution and the widths of the resonances, is found to contain essentially all relevant information ...
A. Nagl, H. Überall, W. R. Hoover
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Reflectivity of Deep Sedimentary Bottoms [PDF]
A model for bottom-reflectivity loss has been developed in connection with bottom-reflection experiments made with explosive sources in the Mediterranean Sea. The bottom is considered as a fluid medium with attenuation losses. This model has been found to be a good approximation of variations of the reflection coefficient versus frequency and angle of ...
Bruno Lallement, Paul Stangerup
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Performance and Applicability of Water Column Correction Models in Optically Complex Coastal Waters
Maps of submerged aquatic vegetation (SAV) are of primary importance for the sustainable management of coastal areas and serve as a basis for fundamental ecological studies.
Ele Vahtmäe, Tiit Kutser, Birgot Paavel
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