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 20 of 5929 for “"sea"”.
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Sea-Crosser
Sea-Crosser is a forty-five-minute cantata telling the story of a Jewish immigrant who fled Russia to escape the persecution in the early 20th century. Adapting material from his autobiography, this work evokes the emotional life, sacrifice, and travels of my great-great-grandfather, Alexander …
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Air-sea CO2 cycling in the southeastern Beaufort Sea
… was conducted to examine the couplings between sea ice, ocean, atmosphere, and ecosystem in the southeastern Beaufort Sea. This thesis examines components of the system that control the air–sea exchange of carbon dioxide. Using eddy covariance measurements, we found enhanced CO2 exchange …
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Geochemical tracers in the deep-sea and the North Sea
… about the inorganic geochemistry of the deep-sea and the North Sea, which have been published or submitted for publication. Typical element/Al ratios indicate eolian, continental input of loess material during the last Heinrich-events. In the Arabian Sea, the climatic influence on the …
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A Fugitive Sea
<p>I make images that are fragmented like ominous dreams. Described with sensuous marks of paint, they demand intimacy but reveal vulnerability as they threaten to break apart before the eyes. This thesis examines my journey over the past two years at VCU and describes my artistic beliefs and …
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Deep-Sea Environment
<p>The deep-sea environment is divided into three zones: the abyssopelagic, the abyssobenthic, and the hadal zones. The ocean floor is not a smooth featureless sedimentary plain as has been believed earlier, but instead it is of rough topography with numerous irregularities, deep depressions, many …
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Sea clutter simulation
… a study, the aim of which was the prediction of sea clutter characteristics including the temporal properties of the return signals as observed by a maritime surveillance radar system. The compound K distribution model used to generate clutter amplitude statistic enables the simulation of sea …
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Sea of change
The Gulf of Maine is warming at a faster rate than 99.9 percent of the world ocean, a trend with uncertain implications for the last great maritime fishery: American lobster. Every year, fishermen, scientists, and managers wait to see if the fishery reverses its fantastic growth, which has been a …
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Modeling the Seasonal Sea Ice Cycle in the Ross Sea, Antarctica
… coupled thermodynamically/dynamically to a sea ice model (CICE) and thermodynamically to an ice shelf is used to investigate Ross Sea seasonal sea ice cycle, polynya dynamics, distribution and transformations of continental shelf water masses, and bottom water formation. Daily atmospheric …
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Microwave remote sensing of young sea ice in the Greenland Sea
… data from satellite remote sensing and two research cruises showed the Odden ice tongue in the Greenland Sea to consist predominantly of young sea ice in the form of frazil and pancake ice. These young ice types have been implicated in the preconditioning of the ocean for deep ventilation. …
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Sea + Survival: choreographing dune systems to defend against sea-level rise
Sea-level rise is on the forefront of global climate change concerns with an estimated 800 million people at risk of experiencing the devastating social, economic, and environmental impacts of rising seas and storm surges (C40 Cities, n.d.). In particular, coastal towns and cities are under immense …
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Reconstruction of recent and palaeo sea ice conditions in the Barents Sea
… isoprenoid alkene derived from certain Arctic sea ice diatoms that, when detected in marine sediments, has been used as a proxy for past Arctic sea ice over the last decade. In the current study, the structure of this biomarker was determined following large-scale extraction from sediment …
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Sea sparing, sea sharing, and production at least cost to the planet
… the benefits of no-take MPAs may be limited in seascapes that are already ‘well-regulated’ by other forms of fisheries management, particularly if they only displace fishing effort to other areas for no net biodiversity gain. In this thesis, I aimed to evaluate the conservation benefits of …
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Large scale sea-air energy fluxes and global sea surface temperature fluctuations
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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Deep sea seismic stratigraphy
… for the reflection of seismic waves within deep-sea sediments are shown to be less reliable for the purposes of correlation than their counter-parts in shallow margin sequences. Similar surfaces, such as abrupt lithological changes and unconformities, in the two different realms are not …
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The Caspian Sea Competition
The Caspian Sea's energy wealth offers the world a vital new source of oil and gas in the next century. Control over the energy resources and the transport routes out of the Caspian Sea basin is becoming a central issue of post-Cold War politics. Situated at the strategic crossroads of Europe and …
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Sea-ice and ice-shelf variability in the Amundsen Sea Embayment, West Antarctica
Global sea-level rise contributed by Antarctic ice-mass loss could soon outpace all other sources. The ice-mass-loss signal of the Antarctic Ice Sheet is dominated by the Amundsen Sea Embayment (ASE) in West Antarctica. Ice shelves in the ASE influence the ice-mass-loss rates of the Antarctic Ice …
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Geochemistry of deep-sea hydrothermal vent fluids from the Mid-Cayman Rise, Caribbean Sea
… of precipitation in a wide variety of seafloor hydrothermal vents. Areas studied include the eastern Manus Basin and Lau Basin back-arc spreading centers, the unsedimented basalt-hosted Southern East Pacific Rise, and the sediment-hosted Guaymas Basin mid-ocean ridge spreading centers.
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State estimation of the Labrador Sea with a coupled sea ice-ocean adjoint model
Sea ice (SI) and ocean variability in marginal polar and subpolar seas are closely coupled. SI variability in the Labrador Sea is of climatic interest because of its relationship to deep convection/mode water formation, carbon sequestration, and Northern Hemisphere atmospheric patterns. …
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Geochemistry of deep-sea hydrothermal vent fluids from the Mid-Cayman Rise, Caribbean Sea
… nature of carbon transformations in deep-sea hot springs are addressed. In contrast with the current paradigm, CH4 is not actively forming during circulation of H2-rich vent fluids, but instead is derived from fluid inclusions in the host rocks. Chapters 3 and 4 present in-depth studies of …
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