Browsing Ocean 444 and Ocean 445 -- Senior Theses by Title
Now showing items 68-87 of 337
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Defining the characteristics of active spreading centers
(2012-06)[Author's Abstract] Spreading centers occur where tectonic plates are moving apart from each other creating new seafloor and mid-oceanic ridges. The rate at which the centers spread causes changes in the geological features ... -
Density structure in the outflow region of Colvos Passage: Observational analysis and model comparison
(2019)Puget Sound lies in a densely populated region of the state of Washington with many potential sources of pollution. A better understanding of circulation patterns within Puget Sound, such as the complex intersection of ... -
Depositional characteristics and trace metal abundance of sediments in an anoxic basin
(2015-06)[author abstract] Radiocarbon dates, grain-size analysis, δ13C, Computerized Tomography Scans, and metal abundance profiles are used to identify sediment deposition rate, sediment source, and redox conditions in a basin ... -
A description of water masses in Nootka Sound and estimation of diffusivity and upward velocity in Muchalat Inlet using temperature, salinity and dissolved oxygen
(2015-06)[author abstract] Nootka Sound is a rarely studied fjord estuary on the west coast of Vancouver Island, Canada. Using CTD and UCTD casts, water property data was collected from the entrance sill, main basin, and through ... -
Descriptive acoustic analysis of a newly-discovered marine seep
(2013-06)[author abstract] Methane is a potent greenhouse gas that plays an important role in the global climate and has a warming potential that is twenty-five times greater than that of carbon dioxide. Natural fluxes of methane may ... -
Design Alternatives for Sea Level Monitoring in Developing Anthropogenic Settings of South Asia
(2018-05-27)Melting land ice and the thermal expansion of water, both results of Earth’s warming climate, are currently contributing to global sea level rise. Because its implications are not directly apparent from day to day, the ... -
Design and Test of Emergency Response Drifter with Low Debris Profile
(2017-07-24)Affordable techniques for tracking point source water pollutants such as small-scale oil spills are limited to in situ drifters and manually controlled drones. The new age technology of low cost, areal footage via an ... -
Design of a Stereo-RUV for Remote Study of Octopod Behavior and Ecology
(2018-05-27)Remote underwater video recording techniques play an important role in the study of marine animals, certain natural behaviors of which may only be observed by remote instruments. Here the design, build, and testing of a ... -
Detecting a shallow surface layer in Barkley Sound from Lagrangian drifter trajectories
(2013-06)(Author abstract.) Fresh surface layers exist on the surface of fjords. In these areas, lighter freshwater from rivers flows over top of denser seawater from the ocean. A fresh surface layer creates stratification, ... -
Detecting seafloor lava flows with seafloor roughness
(2022)Much of the seafloor is currently unexplored. As such, increasing the number of options in the “tool box” is vital for studying the oceans. This study uses the North Arch Volcanic Field, an area of seafloor north of ... -
Detecting silica deposition changes in diatoms due to variable nutrient concentrations using a fluorescent silica tracer in the waters of Barkley Sound, Canada
(2010-05-28)The purpose of this study was to investigate the impact of varying nutrient ratios on growing diatoms in Trevor Channel and Effingham Inlet. The study successfully determined the percentage of actively growing diatoms ... -
Determination of respiratory processes in the Oxygen Deficient Zone of the Eastern Tropical North Pacific using targeted proteomics
(2017-07)The majority of the ocean contains sufficient oxygen to support aerobic respiration. However, when oxygen concentrations fall to levels of 10 umol/kg or less, microorganisms utilize alternative electron acceptors such as ... -
Determination of the Change in Anthropogenic Carbon Content in the Kuroshio Extension over the past 20 years using the C* Method
(2013-06)[author abstract] The oceans have been observed to be passively absorbing 1/2 of the total anthropogenic CO2 that has been emitted to the atmosphere. The goal of this study is to determine how much anthropogenic carbon ... -
Determining CO2 Balance influenced by Upwelling and Primary Production in the Equatorial Pacific Region at 180° using CO2 and O2 flux
(2023-06)The oceanic carbon cycle is one of the most important mechanisms in controlling the Earth’s climate as oceans take up to 30% of the carbon emissions, acting as a major sink. The ocean’s biological and solubility pumps are ... -
Determining Fin Whale Call Counts in the Northeast Pacific using Hydrophone Data
(2021)Fin whale call counts in the Northeast Pacific, between 2015 to 2020, were determined using hydrophone data from the Ocean Observatories Initiative’s regional cabled array database. This study sought to determine if fin ... -
Determining geological relationships that lead to the locations of focused and diffuse vents on the Brothers Volcano, using seafloor imaging and EM300 multibeam bathymetry
(2010-01-14)The Brothers volcano in the Kermadec Arc has an active and extensive hydrothermal venting system. Using multibeam sonar survey and an underwater camera (TowCam), this study documents the geological features association ... -
Determining picoplankton community and concentration near Hawaiian Islands with varying nutrient impacts
(2011-03)Picoplankton communities and nutrient concentrations from different Hawaiian islands were compared to determine if there was a change. It is important to determine if human activities cause a shift in plankton communities ... -
Determining the spatial scale of wave variance for the siting of wave energy converters in near shore coastal environments
(2015-06)[author abstract] Oceanic surface waves are one of the biggest potential energy sources available to support our ever-increasing energy demands. The construction, development, and siting of large Wave Energy Converters ... -
Determining the trophic levels of Tarr Inlet, Glacier Bay, Alaska by measuring the isotopic enrichment of 15N
(School of Oceanography, University of Washington, 2008-06-19)This study used nitrogen isotope levels to estimate trophic levels, thus providing information about the food webs in Glacier Bay. Commercial fishing is being phased out in the bay and it is assumed that food webs will be ... -
Determining variation in biological community structure due to environmental stressors around hydrothermal vent systems of Brothers volcano, Kermadec Arc, New Zealand
(2010-01-14)This study examined the environmental differences between the plumes of the Brothers volcano's two vents. Four stressors-temperature, Eh or oxidation/reduction potential, salinity and turbidity were correlated with the ...