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Coastal ocean variability off the coast of Taiwan in response to typhoon Morakot : river forcing, atmospheric forcing, and cold dome dynamics
(Massachusetts Institute of Technology, 2014)
The ocean is a complex, constantly changing, highly dynamical system. Prediction capabilities are constantly being improved in order to better understand and forecast ocean properties for applications in science, industry, ...
Interannual variability of the Pacific water boundary current in the Beaufort Sea
(Massachusetts Institute of Technology, 2013)
Between 2002 and 2011 a single mooring was maintained in the core of the Pacific Water boundary current in the Alaskan Beaufort Sea near 152° W. Using velocity and hydrographic data from six year-long deployments during ...
Vortex Induced Vibrations of cylinders : experiments in reducing drag force and amplitude of motion
(Massachusetts Institute of Technology, 2007)
Reducing the deleterious effect of Vortex Induced Vibrations (VIV) in marine risers is an important task for ocean engineers; and many competing factors exist in the design of VIV suppression devices. This thesis explores ...
Multiple-vehicle resource-constrained navigation in the deep ocean
(Massachusetts Institute of Technology, 2011)
This thesis discusses sensor management methods for multiple-vehicle fleets of autonomous underwater vehicles, which will allow for more efficient and capable infrastructure in marine science, industry, and naval applications. ...
Evaluation of vector sensors for adaptive equalization in underwater acoustic communication
(Massachusetts Institute of Technology, 2014)
Underwater acoustic communication is an extremely complex field that faces many challenges due to the time-varying nature of the ocean environment. Vector sensors are a proven technology that when utilizing their directional ...
Physical control of the distributions of a key Arctic copepod in the Northeast Chukchi Sea
(Massachusetts Institute of Technology, 2015)
The copepod Calanus glacialis is one of the most important zooplankton taxa in the Arctic shelf seas where it serves as a key grazer, predator, and food source. Its summer distribution and abundance has direct effects on ...
Design considerations for engineering Autonomous Underwater Vehicles
(Massachusetts Institute of Technology, 2007)
Autonomous Underwater Vehicles (AUVs) have been established as a viable tool for Oceanographic Sciences. Being untethered and independent, AUVs fill the gap in Ocean Exploration left by the existing manned submersible and ...
Variable buoyancy system metric
(Massachusetts Institute of Technology, 2009)
Over the past 20 years, underwater vehicle technology has undergone drastic improvements, and vehicles are quickly gaining popularity as a tool for numerous oceanographic tasks. Systems used on the vehicle to alter buoyancy, ...
Robust acoustic signal detection and synchronization in a time varying ocean environment
(Massachusetts Institute of Technology, 2012)
Signal detection and synchronization in the time varying ocean environment is a difficult endeavor. The current common methods include using a linear frequency modulated chirped pulse or maximal length sequence as a detection ...
Verification of a six-degree of freedom simulation model for the REMUS autonomous underwater vehicle
(Massachusetts Institute of Technology, 2001)
mproving the performance of modular, low-cost autonomous underwater vehicles (AUVs) in such applications as long-range oceanographic survey, autonomous docking, and shallow-water mine countermeasures requires improving the ...