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 21 for “"Water circulation"”.
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Water circulation within Tomales Bay, California, U.S.A. : a Mediterranean climate estuary
… terrigenous inputs, air-sea exchange, sediment-water exchange, ocena-bay exchange and internal cycling in estuaries was conducted. This thesis addresses the ocean-bay exchange section in identifying and describing the estuarine water circulation and its variability, both temporally and …
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Abundance and Distribution of Early Life Stage Blue Crabs (Callinectes sapidus) in Lake Pontchartrain
… passes. My data suggest that C. sapidus utilize water circulation within the Lake Pontchartrain as a means of transportation throughout the estuary. MODerate-resolution Imaging Spectroradiometer (MODIS) 250 m data were analyzed to gain a large-scale view of suspended sediments patterns within …
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Palynology and foraminiferal geochemistry of the Lower Pleistocene Olduvai Subchron (ca. 1.8 Ma) in DSDP Hole 603C, western North Atlantic
… to reflect fluctuating temperate to subtropical water masses. These assemblages comprise both neritic and oceanic species, and are marked by a transition upsection from warm conditions, dominated by Lingulodinium machaerophorum, Polysphaeridium zoharyi and Cymatiosphaera? invaginata, to cooler …
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Water mass distribution and Polar Front structure in the Southwestern Barents Sea
The water mass distribution in the southwestern Barents Sea, the thermohaline structure of the western Barents Sea Polar Front, and the formation of local water masses are described based on an analysis of historical hydrographic data and a recent process-oriented field experiment. This study …
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Uso de prebiótico para tilápia-do-nilo durante o período de inversão sexual
… were used with a capacity of 50 liters with water circulation, temperature controlled water and continuous aeration system, 240 animals were used: 15 tilapia larvae per experimental unit, divided into four treatments and four replications, totaling 16 experimental units using a completely …
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Distribuição vertical do filo Chaetognatha em um ponto fixo na baía de Guanabara (RJ-Brasil)
… five tidal cycles at the central channel of water circulation of the bay, to establish the distribution patterns of the chaetognaths at winter of 1995 and summer of 1996. Sagitta friderici, Sagitta enflata and Krohnitta pacifica, were found in the samples. S. friderici, the most abundant, is …
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Design that Heals
… building aims to celebrate and expose its own water circulation systems, mirroring the beautiful, yet chaotic, systems within the human body.
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Cross-shelf circulation and momentum and heat balances over the inner continental shelf near Martha's Vineyard, Massachusetts
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; and heat flux between the ocean and atmosphere during 2001-2007. When waves …
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Population ecology of the dinoflagellate species Lingulodinium Polyedrum in southern California
… genetic diversity of this species in coastal waters of Southern California. The life cycle experiments showed that processes such as gametogenesis and ecdysis of L. polyedrum are influenced by photon flux density (PFD) and gave a first indication for an involvement of the photosynthetic …
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Cross-shelf circulation and momentum and heat balances over the inner continental shelf near Martha's Vineyard, Massachusetts
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; and heat flux between the ocean and atmosphere during 2001-2007. When waves …
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Damming the Nation: How Engineers Transformed Rivers into Water Tanks for Modern South Korea
… the 1960s, under the name of "Comprehensive Water Resources Development," South Korean state engineers have constructed more than a dozen large multi-purpose dams on rivers in the nation. The prevailing Korean narrative tends to regard the surge of large dam-building as the outcome of modern …
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Evolution of anthropogenic Pb and Pb isotopes in the deep North Atlantic Ocean and the Indian Ocean
… of dissolved Pb and other trace elements in seawater using single batch nitrilotriacetate resin extraction and isotope dilution ICP-MS, which was applied in analyzing seawater Pb concentrations in the rest of the study. A ~550 year history of the Pb and Pb isotopes in the deep North Atlantic …
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Evolution of Anthropogenic Pb and Pb isotopes in the deep North Atlantic Ocean and the Indian Ocean
… of dissolved Pb and other trace elements in seawater using single batch nitrilotriacetate resin extraction and isotope dilution ICP-MS, which was applied in analyzing seawater Pb concentrations in the rest of the study. A -550 year history of the Pb and Pb isotopes in the deep North Atlantic …
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Pathogen Indicator Monitoring In The Ross Barnett Reservoir
Man-made reservoirs are often used for both water supply and recreation. The Ross Barnett Reservoir in central Mississippi, a 33,000-acre man-made lake, provides drinking water to the city of Jackson, MS, and forty-eight surrounding communities. Further, an estimated 2.5 million people visit the …
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Paleoceanographic and Paleoclimatic Changes Associated With the Eocene-Oligocene Transition
… events of the past 50 myr. Surface and deep water temperature histories and variations in global ice volume were reconstructed using paired measurements of δ<super>18</super>O and Mg/Ca on benthic and planktonic foraminifera across the EOT using Ocean Drilling Program (ODP) Sites 1090 …
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Travertine from Egypt's Western Desert: a terrestrial record of North African paleohydrology and paleoclimate during the late Pleistocene
… sampling of travertine and modern groundwaters from five important oasis areas with data from previously published studies, we combine high-precision U/Th dating, geologic characterization, and stable isotope and 87Sr/86Sr geochemistry to contribute to a record of Egyptian pluvial periods …
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Benthic environmental responses to climatic changes during the late Quaternary: a micropalaeontological and geochemical approach
… but also a complex balance between surface water productivity, sea level and deep water circulation. Therefore, this thesis demonstrates the rapidity of the benthic environmental response to these factors induced by global scale climatic change. To investigate the interplay between the …
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The Importance of Bioacoustics for Dolphin Welfare: Soundscape Characterization with Implications for Management
… sounds), bathymetry complexity, and method of water circulation. It was hypothesized that the greater the biological and physical differences of a pool from the ocean habitat, the greater the acoustic differences would be from the natural environment. Spectral analysis and audio playback …
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Analysis, Modeling, And Simulation Of The Tides In The Loxahatchee River Estuary (Southeastern Florida).
… Environmental Protection, and the South Florida Water Management District explore the development of a two-dimensional, depth-integrated tidal model for the Loxahatchee River estuary (Southeastern Florida). Employing a large-domain approach (i.e., the Western North Atlantic Tidal model domain), …
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