Browsing MIT Libraries by Subject "/Woods Hole Oceanographic Institution. Joint Program in Oceanography/Applied Ocean Science and Engineering."
Now showing items 1-20 of 61
-
Abrupt climate change in the Atlantic Ocean during the last 20,000 years : insights from multi-element analysis of benthic and planktic foraminifera and coupled OA-GCM
(Massachusetts Institute of Technology, 2005)Minor and trace element records of planktic and benthic foraminifera from Atlantic sediment cores, as well as output from a coupled OAGCM, were used to investigate the magnitude and distribution of the oceanic response to ... -
Acoustic scattering from sand dollars (Dendraster Excentricus) : modeling as high aspect ratio oblate objects and comparison to experiment
(Massachusetts Institute of Technology, 2008)Benthic shells can contribute greatly to the scattering variability of the ocean bottom, particularly at low grazing angles. Among the effects of shell aggregates are increased scattering strength and potential subcritical ... -
Acoustic scattering of broadband echolocation signals from prey of Blainville's beaked whales : modeling and analysis
(Massachusetts Institute of Technology, 2006)Blainville's beaked whales (Mesoplodon densirostris) use broadband, ultrasonic echolocation signals (27 to 57 kHz) to search for, localize, and approach prey that generally consist of mid-water and deep-water fishes and ... -
Adaptive sampling in autonomous marine sensor networks
(Massachusetts Institute of Technology, 2006)In this thesis, an innovative architecture for real-time adaptive and cooperative control of autonomous sensor platforms in a marine sensor network is described in the context of the autonomous oceanographic network scenario. ... -
Adult demography and larval processes in coastal benthic populations : intertidal barnacles in Southern California and Baja California
(Massachusetts Institute of Technology, 2005)The geographic distribution and dynamics of coastal benthic populations are shaped by physical - biological interactions affecting larval dispersal and the demography of juvenile and adult individuals. This thesis focused ... -
Advances in the visualization and analysis of boundary layer flow in swimming fish
(Massachusetts Institute of Technology, 2005)In biology, the importance of fluid drag, diffusion, and heat transfer both internally and externally, suggest the boundary layer as an important subject of investigation, however, the complexities of biological systems ... -
Air-sea interaction at contrasting sites in the Eastern Tropical Pacific : mesoscale variability and atmospheric convection at 10°N
(Massachusetts Institute of Technology, 2007)The role of ocean dynamics in driving air-sea interaction is examined at two contrasting sites on 125°W in the eastern tropical Pacific Ocean using data from the Pan American Climate Study (PACS) field program. Analysis ... -
Approaches for assessing the presence and impact of thyroid hormone disrupting chemicals in Delphinid cetaceans
(Massachusetts Institute of Technology, 2006)Cetacean blubber is a primary site for lipid storage, which the animal utilizes during periods of energetic stress. It is important to understand how the blubber responds to factors such as ontogeny, water temperature, ... -
Biomechanics of North Atlantic right whale bone : mandibular fracture as a fatal endpoint for blunt vessel-whale collision modeling
(Massachusetts Institute of Technology, 2007)The North Atlantic right whale, Eubalaena glacialis, one of the most critically endangered whales in the world, is subject to high anthropogenic mortality. Vessel-whale collisions and entanglement in fishing gear were ... -
Black carbon in marine sediments : quantification and implications for the sorption of polycyclic aromatic hydrocarbons
(Massachusetts Institute of Technology, 2003)Sorption is a key factor in determining the fate of polycyclic aromatic hydrocarbons (PAHs) in the environment. Here, PAH sorption is proposed as the sum of two mechanisms: absorption into a biogenic, organic carbon (OC) ... -
Centennial-scale elemental and isotopic variability in the tropical and subtropical North Atlantic Ocean
(Massachusetts Institute of Technology, 2002)The marine geochemistry of the North Atlantic Ocean varies on decadal to centennial time scales, a consequence of natural and anthropogenic forcing. Surface corals provide a useful geochemical archive to quantify past mixed ... -
CFD study of hydrodynamic signal perception by fish using the lateral line system
(Massachusetts Institute of Technology, 2009)The lateral line system on fish has been found to aid in schooling behavior, courtship communication, active and passive hydrodynamic imaging, and prey detection. The most widely used artificial prey stimulus has been the ... -
A computational tool for the rapid design and prototyping of propellers for underwater vehicles
(Massachusetts Institute of Technology, 2007)An open source, MATLABTM-based propeller design code MPVL was improved to include rapid prototyping capabilities as well as other upgrades as part of this effort. The resulting code, OpenPVL is described in this thesis. ... -
Construction and phenotypic screening of mid-size insert marine microbial environmental genomic libraries
(Massachusetts Institute of Technology, 2008)Functional screening of environmental genomic libraries permits the identification of clones expressing activities of interest without requiring prior knowledge of the genes responsible. In this study, protocols were ... -
Cross-shelf circulation and momentum and heat balances over the inner continental shelf near Martha's Vineyard, Massachusetts
(Massachusetts Institute of Technology, 2007)The water circulation and evolution of water temperature over the inner continental shelf are investigated using observations of water velocity, temperature, density, and bottom pressure; surface gravity waves; wind stress; ... -
Detection, classification and localization of seabed objects with a virtual time reversal mirror
(Massachusetts Institute of Technology, 2009)The work presented in this thesis addresses the problem of the detection, classification and localization of seabed objects in shallow water environments using a time reversal approach in a bistatic configuration. The ... -
Distribution, patchiness, and behavior of Antarctic zooplankton, assessed using multi-frequency acoustic techniques
(Massachusetts Institute of Technology, 2006)The physical and biological forces that drive zooplankton distribution and patchiness in an antarctic continental shelf region were examined, with particular emphasis on the Antarctic krill, Euphausia superba. This was ... -
The East Greenland Coastal Current : its structure, variability, and large-scale impact
(Massachusetts Institute of Technology, 2008)The subtidal circulation of the southeast Greenland shelf is described using a set of high resolution hydrographic and velocity transects occupied in summer 2004. The main feature present is the East Greenland Coastal ... -
Echolocation-based foraging by harbor porpoises and sperm whales, including effects of noise and acoustic propagation
(Massachusetts Institute of Technology, 2008)In this thesis, I provide quantitative descriptions of toothed whale echolocation and foraging behavior, including assessment of the effects of noise on foraging behavior and the potential influence of ocean acoustic ... -
Eddies and friction : removal of vorticity from the wind-driven gyre
(Massachusetts Institute of Technology, 2003)Inertial terms dominate the single-gyre ocean model and prevent western-intensification when the viscosity is small. This occurs long before the oceanically-appropriate parameter range. It is demonstrated here that the ...