Denton, Alexander W. S.

The Tuzo Wilson Seamounts are two submarine volcanic edifices that are located 50 km southwest of the Queen Charlotte Islands, offshore British Columbia. These geologically-recent features have formed on the boundary between the Pacific and Explorer plates in the vicinity of their triple junction with the North American plate. Seafloor photographs, acoustic images and conductivity-temperature surveys have been used to elucidate tectonic relationships and to detect hydrothermal activity. Seventy-...

Wu, Lichuan

Surface gravity waves play a vital role in the air-sea interaction. They can alter the turbulence ofthe bottom atmospheric layer as well as the upper-ocean layer. Accordingly, they can affect themomentum flux, heat fluxes, as well as the upper-ocean mixing. In most numerical models, waveinfluences are not considered or not fully considered. The wave influences on the atmosphereand the ocean are important for weather forecasts and climate studies. Here, different aspects ofwave impact on the atmo...

Bennett, Edward Bertram

Physical oceanographic data from the international NorPac survey of August 1955, in the area north of Latitude 45° N and east of Longitude 161° W, were examined. The temperature, salinity, and density distribution and structure from the surface to 2000 meters are discussed. The temperature structure showed an isothermal layer to about 30 meters depth, a marked thermocline to about 100 meters depth, a temperature inversion in most of the area, and below this a gradual temperature decrease into t...

Donelan, Mark Anthony

Across the air-sea interface there is a transfer of momentum, heat and moisture. Knowledge of these is essential to the understanding of oceanic and atmospheric circulations. This study is an investigation of the vertical turbulent transfers of momentum, heat and moisture in the boundary layer of the atmosphere using an instrumented light aircraft. The data were collected at several altitudes between 18 m and 500 m in the Atlantic trade wind zone east of the island of Barbados. Since the tropic...

Parampil, Sindu Raj

Subseasonal variability of tropical Indian Ocean sea surface temperature is thought to influence the active-break cycle of the Asian monsoon. There are several open questions related to the role of surface fluxes, large-scale ocean circulation and subsurface ocean processes in the subseasonal variability of upper ocean temperature. We present a unified study of the subseasonal (2-90 day) variability of surface heat flux and upper ocean temperature and salinity throughout the tropical Indian Ocea...

Vinayachandran, P N

No description available.

Nag, Bappaditya

No description available.

Matear, Richard James

The temperature, salinity, and pressure (STP) data were collected during two cruises, one in early October and the other in early December of 1987, as part of the Ocean Storms experiment. These hydrographic data were analyzed to determine circulation of the northeast Pacific Ocean and to calculate the factors influencing the heat and salt content of the upper ocean. From the depth profiles of the temperature and salinity data, the water mass in the Ocean Storms area was classified as being the E...

Poon, David Tat-Sang

Statics and dynamics of the neutrally buoyant inflated viscoelastic cantilevers constituting a submarine detection system is investigated. Two geometries of the thin-walled beams are considered: uniform circular cylindrical and circular tapered. The static flexural behaviour of the beam is studied using the three parameter viscoelastic solid model which yields material properties for the mylar-polyethylene-mylar plastic film used. Results of a detailed experimental program are also presented t...

Gregor, Luke

The Southern Ocean plays an important role in mitigating the effects of anthropogenically driven climate change. The region accounts for 43% of oceanic uptake of anthropogenic carbon dioxide (CO₂). This is foreseen to change with increasing greenhouse gas emissions due to ocean chemistry and climate feedbacks that regulate the carbon cycle in the Southern Ocean. Studies have already shown that Southern Ocean CO₂ is subject to interannual variability. Measuring and understanding this change has b...

Mellet, Bernice

The SWIO is an area of great biodiversity and included in the diverse species that occupy the region are five species of sea turtles that include green turtles, hawksbills, leatherbacks, loggerheads and olive ridleys. Despite considerable conservation efforts at sea turtle rookeries in the South Western Indian Ocean, only green and loggerhead turtle populations have shown an increase in population size in recent years (<10 years), whereas leatherbacks remained stable and hawksbills and olive rid...

Hansingo, Kabumbwe

Bibliography: leaves 146-155. / Sea surface temperature (SSTs) variations in the South Indian Ocean have been found to influence rainfall over Southern Africa. As one of the modes of South Indian Ocean SST variability, the subtropical South Indian Ocean dipole is observed to be associated with dry and wet summer conditions over Southern Africa. The positive phase of the subtropical South Indian Ocean dipole is characterized by warm SST anomalies in the southwest South Indian Ocean and cool SST a...

Fincham, Mark J

The interplay of three important parameters, dissolution, dilution and winnowing seem to be controlling the state in which sediment material is preserved in the study area though most samples examined under the SEM were generally well preserved. The distribution of forty-four coccolithophore species in one hundred deep sea core-tops from the southwest Indian Ocean is described. Three coccolith assemblages have been recognised (Maputo, Agulhas Current and deep water) and are delineated by the rel...

Häggqvist, Henric

In the field of international trade there is an intriguing tension between the ideological allure of free trade and the political reality of protectionism. Typically, the former is favored by scholars while the latter has been more historically prevalent. Protectionism in the form of tariffs and other obstacles trade was generally a preferred trade policy around the globe in the 18th and early 19th centuries. Sweden was no exception and has been seen as highly protectionist and mercantilist duri...

Springbok–Njokweni, Nosiphiwo

Goatfishes inhabit inshore reefs and corals and are commercially important across their distribution in the Western Indian Ocean (WIO). The biogeography of these species in the WIO has not been explored with regards to their levels of diversity and relationships among regions. The genetic connectivity and differentiation of three goatfishes of the genus Parupeneus (P. barberinus, P. macronemus and P. rubescens) was studied using two mitochondrial genes (ND2 and 16S rRNA) and one nuclear gene (RA...

Barton, Wesley A.

Approved for public release; distribution is unlimited / Results of a highly vectorized and multitasked model of the world ocean circulation were analyzed. This model which uses realistic physics, geometry, and forcing on a high-resolution grid, was run on the NCAR Cray X-MP/48 using a robust-diagnostic strategy. Twenty years of model integration using one-half degree horizontal resolution and 20 levels of vertical resolution were accomplished after 200 wall-clock hours at a maximum FORTRAN perf...

Badulin, Sergei I., Zakharov, Vladimir E.

Results of extensive simulations of swell evolution within the duration-limited setup for the kinetic Hasselmann equation for long durations of up to 2  ×  10⁶ s are presented. Basic solutions of the theory of weak turbulence, the so-called Kolmogorov–Zakharov solutions, are shown to be relevant to the results of the simulations. Features of self-similarity of wave spectra are detailed and their impact on methods of ocean swell monitoring is discussed. Essential drop in wave energy (w...

Diakhate, Moussa

Cette thèse vise à explorer l'influence des températures de surface de l'océan (TSO) sur les vents de surface en Atlantique tropical aux échelles saisonnière et intrasaisonnière. Nous avons commencé par étudier les bilans de moment cinétique et de convergence des vents de surface, avec un modèle simple de couche de mélange atmosphérique et des réanalyses, afin d'identifier les processus liés à l'influence des TSO sur le vent de surface. La comparaison de ces résultats avec les observations montr...

Livezey, Mendal S.

Approved for public release; distribution is unlimited / This study was conducted to examine the effects of discrete precipitation events on the short-term and seasonal evolution of ocean mixed layer temperature and salinity structure. This study was located at Ocean Station "P" (50°N, 145°W) in the Northeast Pacific Ocean. Two numerical modeling experiments were performed. The first was to simulate the response of the mixed layer to hypothetical discrete (isolated) precipitation events. Th...

Daly, Ryan

The trophodynamics of the numerically dominant mesozooplankton (200-2000 m) in the vicinity of the Subtropical Convergence (STC) in the Indian sector of the Southern Ocean during austral autumn (April / May) 2007 were investigated as part of the Southern Ocean Ecosystem Variability Study. The survey consisted of six north-south transects each bisecting the STC between 38º to 43ºS and 38º to 41º45’E. In total, 48 stations situated at 30 nautical mile intervals were occupied over a period of ten d...

Bernard, Kim Sarah

The aim of the present study was to assess the ecological role of the euthecosome pteropod, Limacina retroversa, in particular, and the mesozooplankton community, in general, in the pelagic ecosystem of the Polar Frontal Zone (PFZ), Southern Ocean. Data were collected from four oceanographic surveys to the Indian sector of the PFZ during austral autumn 2000, 2002, 2004 and 2005. Copepods, mainly Calanus simillimus, Oithona similis, Clausocalanus spp. and Ctenocalanus spp., typically dominated to...

Balarin, Marianne G

The factors controlling primary production in the Southern Ocean were investigated over two years during two cruises of the South African National Antarctic Program (SANAP). The first cruise was conducted to the region of the eastern Atlantic sector of the Southern Ocean during the collaborative Scandinavian/South African Antarctic expedition conducted in austral summer (DecemberIFebruary) 1997-1998. Production studies were conducted in the vicinity of the Marginal Ice Zone (MIZ), Interfrontal Z...

Dixon, John Patrick

"Found at Sea" is a historical study centered on the Atlantic Ocean. This dissertation employs ships' logbooks in combination with a GIS mapping methodology to address the ocean, itself, as a site for historical developments. Eighteenth-century mariners sailed the ocean in more varied ways than historians have previously described. This dissertation demonstrates that the Atlantic Ocean of the late eighteenth century was a highly-populated, very social, international space. It was normal for a sh...

Plummer, Cody Lynn

Integrated Ocean Observing Systems (IOOS) provide real time oceanic data and sea state forecasting information that is utilized by numerous public and private sectors engaging in maritime activities. The U.S. Gulf Coast constituent of this system (GCOOS) consists of 321 platforms, buoys, and sensors that provide measurements of wind speed, wave height, water quality, and other parameters. Government entities have proposed an expansion of this infrastructure by 40% at an estimated cost of $35 mil...

Venkata, Srikanth, Reagan, John

This paper describes approaches to retrieve important aerosol results from the strong lidar return signals that are received by the space-borne CALIPSO lidar system after reflecting off-ocean surfaces. Relations, from which the theoretically expected values of area under ocean surface returns can be computed, are presented. A detailed description of the lidar system response to the ocean surface returns and the processes of sampling and averaging of lidar return signals are provided. An effectiv...

BRIKOWSKI, TOM HARRY.

Hydrothermal activity is one of the dominant processes affecting the chemical and thermal evolution of oceanic crust at the mid-ocean ridge (MOR), but little is known about the sub-surface portions of ridge hydrothermal systems. These systems can be investigated using numerical modeling techniques, and models of two-dimensional cross-sections are utilized in this study to investigate the behavior of MOR hydrothermal systems. The influence of magma chamber geometry is explored by modeling two ext...

Kehoe, Kenneth

Specular reflection off the ocean surface has been used to derive ocean wave heights and surface wind speeds, but the effect that waves have on ocean surface reflection of incident solar radiation is not fully understood. This study focussed on measuring how sun glint affects the Earth's radiation budget, by including the previously ignored specularly reflecting region. Measurements collected by the GOES-10 geostationary satellite were used to produce an effective sun glint albedo to characteriz...

Macdonald, Angus Hector Harold.

Generations of hard corals have built the complex reef ecosystems that harbour a huge diversity of sea-life in the world’s shallow tropical oceans. These undergo both sexual and clonal reproduction, and may contain signatures in their genomes which help to decipher the riddles of past population dynamics and evolutionary history. Two species of coral, Acropora austera and Platygyra daedalea, were collected from sites along the east African coastline from Kenya in the north to Maputaland, South A...

Wang, Yi, 1969-

In this thesis, the "green" McGill Paleoclimate Model (MPM) is developed by interactively coupling the five-component physical MPM with a Dynamic Global Vegetation Model (DGVM) known as VECODE (VEgetation COntinuous DEscription model). Three applications to the pre-industrial Holocene climate, ocean, vegetation and terrestrial carbon cycle dynamics are presented, after a new land surface scheme is introduced. In these applications, orbital (Milankovitch) forcing and prescribed atmospheric ...

Robitaille, Daniel Y.

A simple box model of a a high-latitude two-layer ocean, first developed by Martinson et al., 1981, is applied to four Arctic regions connected together: the Greenland Sea, the Norwegian Sea, the Arctic Ocean, and the Greenland Gyre. The latter, in fact, is a small convective region embedded in the northwest corner of the Norwegian Sea region. The model for each region consists of a thermodynamic ice layer that covers two layers of salty water which can, under specific conditions, become statica...

Bulleid, Elizabeth, 1947-

No description available.

Karsten, Richard H.

No description available.

Polonichko, Vadim Dmitri

No description available.

Lazin, Gordana

No description available.

Fanning, Augustus F.

No description available.

Trueman, Norman Anthony.

Thesis (M.Sc.) --University of Adelaide, Dept. of Geology, 1965. / Typescript.

Cirano, Mauro.

Thesis (Ph. D.)--University of New South Wales, 2000. / Also available online.

Hannah, Michael James.

Thesis (B.Sc. (Hons.)) -- University of Adelaide, Dept. of Geology, 1976. / Typescript (photocopy).

Becker, Joseph Jeffrey.

Thesis (Ph. D.)--University of California, San Diego, 2008. / Title from first page of PDF file (viewed March 18, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

Di Mento, John Mark.

Thesis (Ph.D.)--Fletcher School of Law and Diplomacy, 2006. / Curriculum vitae. "In partial fulfillment of the requirements for the Degree of Doctor of Philosophy." Includes bibliographical references (p. 541-580).

Halkides, Daria Jean.

Thesis (Ph.D.)--University of Colorado at Boulder, 2005. / Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 0780. Director: Weiqing Han.

Douglass, Elizabeth M.,

Thesis (Ph. D.)--University of California, San Diego, 2007. / Title from first page of PDF file (viewed January 10, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 129-132).

Bicep, Judith Anne

No description available.

Hogan, Peter M.

Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 125-126). Also available on the World Wide Web.

Faulkner, Jay Allen,

Thesis (M. S.)--Texas A&M University, 2006. / "Major Subject: Visualization Sciences" Title from author supplied metadata (automated record created on Apr. 27, 2007.) Vita. Abstract. Includes bibliographical references.

Liu, Yonggang.

Dissertation (Ph.D.)--University of South Florida, 2006. / Title from PDF of title page. Document formatted into pages; contains 167 pages. Includes vita. Includes bibliographical references.

Grossman, Eric E.

Thesis (Ph. D.)--University of Hawaii at Manoa, 2001. / Heading on microfiche: Grossman, Eric Edward. Includes bibliographical references (leaves 238-257). Also available on microfiche.

Cheney, Jerry.

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1982. / Supervised by Peter Wiebe. Vita. Includes bibliographical references (leaves 322-337).

Cornuelle, Bruce Douglas.

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1983. / Supervised by Carl I. Wunsch. Includes bibliographical references (leaves 355-359).

Crowe, John.

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1981. / Supervised by Richard P. Von Herzen and John G. Sclater. Vita. Includes bibliographical references.