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.
Results
Showing 1 to 9 of 9 for “"Bathymetric maps"”.
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Multibeam echosounding as a tool for mapping geologic features, bathymetry and modern vents, Yellowstone National Park, Wyoming
… compositions have occurred. The first-ever bathymetric and acoustic backscatter map of Lewis Lake shows that the lake morphology has been shaped by at least four separate volcanic events. These include tuff, rhyolitic and pyroclastic flows that have altered the hydrothermal plumbing of the …
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Self consistent bathymetric mapping from robotic vehicles in the deep ocean
… limiting factor when constructing vehicle-based bathymetric maps. This thesis presents a methodology to produce self-consistent maps and simultaneously improve vehicle position estimation by exploiting accurate local navigation and utilizing terrain relative Measurements. It is common for errors …
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Self consistent bathymetric mapping from robotic vehicles in the deep ocean
… limiting factor when constructing vehicle-based bathymetric maps. This thesis presents a methodology to produce self-consistent maps and simultaneously improve vehicle position estimation by exploiting accurate local navigation and utilizing terrain relative measurements. It is common for errors …
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Autonomous underwater vehicle navigation and mapping in dynamic, unstructured environments
… for automatically building 3-D optical and bathymetric maps of underwater terrain using autonomous robots. The maps that are built improve the state of the art in resolution by an order of magnitude, while fusing bathymetric information from acoustic ranging sensors with visual texture …
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Autonomous underwater vehicle navigation and mapping in dynamic, unstructured environments
… for automatically building 3-D optical and bathymetric maps of underwater terrain using autonomous robots. The maps that are built improve the state of the art in resolution by an order of magnitude, while fusing bathymetric information from acoustic ranging sensors with visual texture …
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Long and Short-Term Morphologic Evolution and Stratigraphic Architecture of a Transgressive Tidal Inlet, Little Pass Timbalier, Louisiana
… geometry, and shoreline morphology. Historic bathymetric maps (dating to the 1880’s) and newly acquired bathymetric data for Little Pass Timbalier have been assembled to construct an evolutionary model for the region. The evolution of Little Pass Timbalier is complex and encompasses landward …
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A Glacial Sedimentary System in Northwest Spitzbergen
… by radioisotopic dating methods, 210Pb and 14C. Bathymetric maps were constructed following echo sounding survey of the lakes. Seventy-two water samples from the linked lakes were used to assess contemporary environmental conditions, and to aid interpretation of sedimentary structures within core …
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Deriving bathymetry from multispectral and hyperspectral imagery
… vessel. It also provides a means of collecting bathymetric data covertly. This research explores two techniques for deriving bathymetry and assesses them for use by those involved in providing support to military operations. To support this aim a fieldwork campaign was undertaken in May, 2000, …
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Community Structure of Methane Cold Seeps in the Western Atlantic and Eastern Pacific
… used here yielded high-resolution habitat maps that can serve as baselines to constrain temporal evolution of seafloor seeps, and to inform ecological niche modeling and resource management. </p><p>Another aspect of the study is how seep communities differ when in an extremely low oxygen …