Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Underwater light"”.
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A DNS capability for obtaining underwater light field and retrieving upper ocean conditions via in-water light measurements
… (DNS) capability of solving complicated natural light field patterns in the ocean-atmosphere system. The DNS is applied by means of Monte Carlo method to solve radiative transfer for both unpolarized and polarized natural light radiation, especially strongly affected with dynamic air-sea boundary …
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Estimation of Primary Production and Carbon Flux in Antarctic Coastal Waters: A Modeling Study
… from models that are designed to simulate the underwater light field, to simulate phytoplankton primary production, and to estimate the fate of phytoplankton carbon in continental shelf waters of the west Antarctic Peninsula (WAP) and Ross Sea. Simulation of the underwater light field required …
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Spectral Irradiance and Phytoplankton Community Composition In Blackwater Estuaries
<p>The underwater light field in blackwater environments is strongly influenced by colored dissolved organic matter (CDOM) which absorbs blue light and shifts the underwater light field to the red end of the electromagnetic spectrum. My dissertation research examined relationships between spectral …
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Ecological effects of turbidity variations in and around dredging areas in the Port of Tauranga
Turbidity is the scattering of light in water bodies and is an important measurement for assessing water quality in coastal systems. Suspended particles in the water column can greatly impact on light penetration and measured turbidity levels. These suspended particles can originate from a range of …
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Temporal and Spatial Patterns in Optical Properties of Colored Dissolved Organic Matter on Florida’s Gulf Coast: Shelf to Stream to Aquifer
… Seasonal surveys revealed that changes in the underwater light field as a result of major hurricanes and resuspension events are linked closely with a number of factors prior to a storm's passing such as the presence of persistant blooms, rainfall and discharge. Additionally, storm track and …
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Field deployable dynamic lighting system for turbid water imaging
… of the most constraining optical properties to underwater image quality are scattering caused by ocean chemistry and entrained organic material. By reducing the size of the scatter interaction volume, one can immediately improve both the focus (forward scatter limited) and contrast (backscatter …
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Machine Vision for Improved Human-Robot Cooperation in Adverse Underwater Conditions
Visually-guided underwater robots are deployed alongside human divers for cooperative exploration, inspection, and monitoring tasks in numerous shallow-water and coastal-water applications. The most essential capability of such companion robots is to visually interpret their surroundings and assist …