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 15 of 15 for “"Western North Atlantic Ocean"”.
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The distribution of dissolved silica in the deep western North Atlantic Ocean
The distribution of dissolved silica in the deep western North Atlantic Ocean is presented. The potential temperature-dissolved silica relationship is compared with the potential temperature salinity relationship in the North Atlantic Deep Water. Geographical variations in the potential …
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The distribution of dissolved silica in the deep western North Atlantic Ocean
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1979.
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The generation, energetics and propagation of internal tides in the western North Atlantic Ocean
… the New England continental slope, Muir Seamount northeast of Bermuda, and the Mid-Ocean Dynamics Experiment in the deep Sargasso Sea were used. Site D, in the near-field of a near-critical semidiurnal generation region, shows variable tidal currents and a marked surface intensification of M2 …
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The spatial and temporal abundance patterns of chaetognaths in the western North Atlantic Ocean
… Sensing System) on six cruises in the western North Atlantic Ocean during the period from August 1975 to November 1977 as part of the study of the biology, physics, and chemistry of Gulf Stream cold core rings. The physical, chemical and biological properties of the Slope Water to the …
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The generation, energetics and propagation of internal tides in the western North Atlantic Ocean.
Thesis. 1975. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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Nutritional ecology of Agalma okeni and other siphonophores from the epipelagic western North Atlantic Ocean
… at 171 stations in warm-water areas of the Western North Atlantic Ocean. Calycophorae and Physonectae showed a two-phase cycle of fishing and swimming. The fishing posture of a siphonophore is determined by its floatation and by the contractility of its stem; fishing postures can be similar …
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Optimization Of An Unstructured Finite Element Mesh For Tide And Storm Surge Modeling Applications In The Western North Atlantic Ocean
… of performing hydrodynamic calculations in the Western North Atlantic Tidal (WNAT) model domain. The WNAT model domain consists of the Gulf of Mexico, the Caribbean Sea, and the entire portion of the North Atlantic Ocean found west of the 60° W meridian. This high resolution mesh (333K) …
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Investigating single and multiple species fisheries management: stock status evaluation of hammerhead (Sphyrna spp.) sharks in the western North Atlantic Ocean and Gulf of Mexico
… (S. zygaena) hammerhead sharks in the U.S. Atlantic Ocean and Gulf of Mexico. Combined data for all three species and unclassified hammerhead sharks were also used to produce a stock assessment of the hammerhead shark complex. Depletions of 83%, 96%, and 91% were estimated for scalloped, …
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Spatial Distribution and Stock-Recruitment Analysis of the Atlantic Surfclam, <i>Spisula solidissima</i>, in the Mid-Atlantic Bight and on Georges Bank
<p>Atlantic surfclams, <em>Spisula solidissima</em>, are long-lived bivalve molluscs with dispersive larval stages. Surfclam patchiness throughout the U.S. Exclusive Economic Zone (EEZ) has declined from the 1980’s to the present in all assessed regions (Delmarva, New Jersey, Long Island, Southern …
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Influence of the Estimator Selection in Scalloped Hammerhead Shark Stock Assessment
… the scalloped hammerhead shark population on the western North Atlantic Ocean using Bayesian methods. This approach allowed incorporate diverse types of errors in the surplus production model and compare the influences of different statistical estimators on the values of the key parameters (r, …
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A study of the seismic structure of upper oceanic crust using wide-angle reflections
The lateral homogeneity of oceanic crust on the scale of a seismic experiment is a condition that most methods of seismic interpretation depend on. Whether this condition is in fact true is largely unknown and only recently have efforts been made to test this hypothesis. This thesis is part of that …
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Marine atmospheric influences on trace gas observations and transport during the ICARTT 2004 campaign
… atmosphere above the Gulf of Maine (GOM) and western North Atlantic Ocean. Part I advances a quasi-lagrangian case study of a plume emanating from the New York City source region. In this, analysis of airborne intercepts of the plume captured its transformation from a polluted airmass within a …
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In the Margins: Reconsidering the Range and Contribution of Diazotrophs in Nearshore Environments
… (ODZs) in the Eastern Tropical South (ETSP) and North (ETNP) Pacific Ocean, and the broad continental shelf of the Western North Atlantic Ocean (WNA). The ODZs are hypothesized to play an important role in N cycle homeostasis by generating conditions thought to promote diazotrophy; recent work …
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Observations and models of inertial waves in the deep ocean
The structure of the inertial peak in deep ocean kinetic energy spectra is studied here. Records were obtained from Polymode arrays deployed in the Western North Atlantic Ocean (40°W to 70°W, 15°N to 42°N). The results are interpreted both in terms of local sources and of turning point effects on …
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Exploring the Spatial Distribution of Marine Nitrogen Fixation Through Statistical Modeling, High-Resolution Observations and Molecular Level Characterization
… by nitrogen in a large portion of the global ocean. Marine nitrogen fixation, catalyzed by a select group of microorganisms called diazotrophs, converts nitrogen gas (N2) into bioavailable nitrogen that can support the growth of marine phytoplankton. By supplying new nitrogen to marine …