Khan, Basit Ali

The main aim of this research is to improve our knowledge of the sea breeze circulation in the complex coastal environments, where more than one mesoscale circulations occur. Interaction of these circulations with each other and with external factors such as topographical features and large scale winds leads to pronounced changes in the thermodynamic structure of the boundary layer. The variations in sea breeze circulation also have distinct effect on the pollutant transport and dispersion mecha...

Moth, Paul Daniel

Research has established that aspects of the environment are unevenly distributed among social and socioeconomic groups. While an abundance of literature documents environmental inequalities such as toxic sites, air pollution, and access to greenspace in North America and Europe, few researchers investigate coastal flooding as a result of sea level rise and storm tides. Flooding, coastal and fluvial, are the most common natural disasters in the world; and considering sea level rise and coastal s...

Maldonado Jaime, Janice

<p>Studies of sea breeze have been done on coastline locations worldwide, but only a few have focused on the U.S. Gulf Coast. This area is frequently influenced by sea breeze events; therefore, it is important for meteorologists to determine where and when these systems will occur. The objectives of this study are to quantify sea breeze frequency along the Gulf Coast and define the associated environmental characteristics. The study is based on sea breeze development during synoptically benign d...

Ekeroth, Nils

This Thesis focuses on the exchange of phosphorus (P) across the sediment–water interface in the Baltic Sea proper, with particular attention to the influence of bioturbating macrofauna and benthic redox conditions. Benthic P fluxes have major influence on P availability in the water column, which in turn regulates growth conditions for dinitrogen fixating cyanobacteria in the Baltic proper. Presently, a very large area of bottom sediment is overlain by oxygen depleted bottom water and is theref...

Melchiorre, Tiziana

This dissertation analyses the phenomenon of regionalism around the Baltic and the Black Sea since the end of the Cold War with a comparative approach and by applying an extended neorealist theory that includes geopolitics and historical legacy. The main focus is regional organizations, the Council of the Baltic Sea States (CBSS) and the Black Sea Economic Cooperation (BSEC), which defines the geographical and political borders of the Baltic and the Black Sea region. These regional organizations...

Elias Piera, Francyne

La Antártida es una masa de tierra y hielo rodeada por un mar con una plataforma continental profunda, caracterizado por temperaturas bajas y bastante constantes. La estacionalidad de luz y la capa de hielo son los responsables del aumento de la producción primaria de fitoplancton en primavera-verano y del flujo vertical de materia orgánica particulada (MOP), compuesto por fitoplancton fresco, excrementos del zooplancton y detritus. Los suspensivoros, así como otros organismos sésiles y vágiles,...

Hogfors, Hedvig

During summer, the Baltic Sea is subjected to the world’s largest cyanobacterial blooms. These blooms are linked to eutrophication and raise many questions concerning their effects on the ecosystem. To understand their impacts on the food web dynamics, it is essential to assess growth responses of grazers to these cyanobacteria. In the northern Baltic proper, copepods are the most important herbivores providing an essential link between the primary producers and higher trophic levels. In this Th...

Jackson, Jolene

Recent literature in cultural geography has turned its attention to the enactment of landscape through performance. Drawing upon the insights of new cultural geography and non-representational theory, this thesis examines the performative enactments of “place” through the production of landscape representations on the Islands of the Salish Sea. In particular, I adopt a narrative approach to consider how the embodied and discursive performances of becoming-artist and the enactment of landscape ar...

Weller, Fay Elizabeth

This dissertation explores how transformative spaces and agency provide opportunities in everyday lives for transformative shifts from the dominant culture towards a culture of ecological decision-making. Stories about transformative change and system shifts, told by forty people involved in Canada’s Gulf Islands, form the basis for the findings. Their stories demonstrate how personal transformation leads to changed lifestyles and system shifts that reflect the interconnectedness between all liv...

Fox, Caroline Hazel

Ecosystems are linked by spatial subsidies, the bi-directional flows of nutrients, materials and energy that cross ecosystem boundaries. Considered one of the planet’s most productive and diverse meta-ecosystems, the broad interface between land and sea is crossed by innumerable abiotic and biotic spatial subsidies, including migratory animals. Routinely crossing ecological boundaries, migrants play significant roles in subsidizing receiving ecosystems, including influencing ecosystem productivi...

Rideout, Brendan Pearce

This thesis develops and demonstrates an approach for estimating the three-dimensional (3D) location of a vocalizing underwater marine mammal using acoustic arrival time measurements at three spatially separated receivers while providing rigorous location uncertainties. To properly account for uncertainty in the measurements of receiver parameters (e.g., 3D receiver locations and synchronization times) and environmental parameters (water depth and sound speed correction), these quantities are tr...

Lewis, Jeffrey Philip

The snowball Earth theory. that low-latitude continents became glaciated after sea ice extended from the poles to the equator during the Neoproterozoic (1000 - 545 Ma), has sparked a flood of numerical modelling studies investigating all phases of the proposed extreme climatic cycle. Modelling studies have both supported and refuted the original ‘hard’ snowball theory, as well as offered alternative theories such as the ‘soft’ snowball theory, where glaciers covered all land masses but sea ice d...

Simpson, Christine Honan

<p> The purpose of this project to was to 1) develop, 2) instruct, 3) evaluate, and 4) revise a 5^th-12^th grade fisheries conservation engineering outreach program entitled <i>Smart Fishing and the Bering Sea</i> (SFBS).</p><p> Fishery resources are important to Alaska and Alaskans, but present complex conservation challenges including user conflicts and concerns about unsustainable fishing practices. Increasing Alaska residents' environmental literacy will enhance natur...

Rice, Richard Hardwicke, Jr.

This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title. / The quantitative effects of sea water velocity on the cathodic protection of aluminum alloy 5086 are studies in this thesis. At velocities from 0 to 3 knots, two types of t...

Marsden, Mungo

Graduate

Fu, Hus-Sheng

Approved for public release; distribution is unlimited. / Motion control of underway replenishment operations is achieved through the use of sliding mode control with a Linear Quadratic Gaussian compensator design. External disturbances include first-order wave force and moment as well as slowly varying interaction forces and moments between the two ships. Feedback control is used to provide adequate stability of motions while feedforward control with disturbance estimation and compensation achi...

Patterson, Bernard Leo

Approved for public release, distribution unlimited / An analytical approach to the problem of replenishing task forces at sea is investigated utilizing queueing theory concepts and a random walk model. The total replenishment time of the task force is derived as the sum of specific individual replenishment times involving idle times of supply ships. With the additional assumption of exponentiality for the replenishment times, the probability density function of the total replenishment time is f...

Scheible, Jack W., Fowler, Richard C.

Underwater sound was scattered from a wind-agitated random rough model sea surface. The surface energy spectral density, the surface rms height, and the surface correlation function were measured. The mean square magnitude and probability distribution of the specularly scattered sound were measured for various angles of incidence between 35 degrees and grazing. The results are compared with the basic theories expressed by Eckart and Beckmann and shadowing corrections derived by Wagner. The frequ...

Shuman, Paul Dennis

Approved for public release; distribution unlimited.

Waggoner, Mark Harvey

Approved for public release, distribution is unlimited. / An analytical model for replenishment at sea is formulated for two supply ships and L combatants using queueing theory concepts and a random walk model in the plane. Exponential distributions are assumed for replenishment times, and, given the initial number of combatants to be replenished by each supply ship, the distribution for total time to complete the finite operation is obtained in terms of Laplace transforms. All possible sequence...

McCullough, David Underwood

A simplified model of the Navy's underway replenishment operation is investigated by using a multi- stage cyclic queue ing model to ap= proximate the process. A computer simulation of a more realistic model is performed to generate data which is compared with the cyclic queue results. The cases for M = 2 and N = 10, 15, 20 with various service rates are considered, where M is the number of ships in the underway replenishment group, and N is the size of the combatant force being replenishe...

Stec, Jeffrey D.

Approved for public release; distribution is unlimited / Sea/land-breeze events on the Monterey Bay are examined using data from the 915-MHz wind profiler and RASS systems. These sensors were deployed during Jun-Aug 1994 in conjunction with the REINAS Project conducted by various scientific institutions in the region. Data analyzed are continuous radar and virtual temperature returns located at four sites strategically positioned around the bay. This relatively new remote sensing device provides...

Foster, Michael D.

Approved for public release; distribution is unlimited / The sea breeze structure was examined at several locations along the California coast during the summers of 1993-1995. The sea breeze was objectively classified as three distinct types: gradual, frontal and rapid onset. The sea breeze wind and virtual temperature structure were determined at the surface and the planetary boundary layer. Especially important were the identification of distinct local and regional scale sea breeze circulation...

Butterfield, Andrew A.

Approved for public release; distribution is unlimited. / Despite inferior strength, Vietnam clings to extensive claims in the South China Sea in conflict with China's claims. Through use of the concept of 'strategic culture,' this thesis investigates the factors, including perceived historical lessons, that drive Vietnam to maintain this strategic posture. The most relevant lessons are that (1) China perpetually desires and frequently attempts to dominate Vietnam, and that resistance historical...

Kong, Deming, 孔德明

abstract / Earth Sciences / Doctoral / Doctor of Philosophy

Lee, Hiu-yan, Jessica, 李曉恩

Plastics are cheap and convenient materials that are widely adopted in our daily applications. High production and consumption of plastics, however, are resulting in the issue of marine plastic pollution. Plastic debris is often divided into two categories: macroplastics and microplastics. Macroplastic is a well-known international problem to the world’s oceans, while microplastics often receive less attention. Many coastal areas and remote islands are suffering from plastic pollution. Marine pl...

Leong, Sau Mun, Dawn-joy.

Scheherazade’s Sea is an interdisciplinary creative work, which brings together music, visual art, literary text, digital media, and performance art. Interdisciplinary creativity has existed for centuries in history. In fact, the ancients of different civilisations viewed the disciplines of science and art as inseparable. The late nineteenth century and early twentieth century saw a resurgence of interdisciplinary interest in the form of artistic collaborations among proponents of the diff...

Wiser, Mickie Kevin

Approved for public release: Distribution is unlimited / Random Decrement (RANDEC) Analysis was applied to time histories of roll motion for the Spruance class destroyer. The data was generated from sea trials conducted on a ship in 1987. The RANDEC process was applied to obtain estimates of roll- resonance modal damping and frequencies due to ship motion excitation by random-natured hydrodynamic forces and moments. Prior to applying the RANDEC technique to ship data, a numerical algorithm wa...

Morrow, Eric

Understanding how global ice volume on the Earth has changed is of significant importance to improving our understanding of the climate system. Fortunately, the geographically unique perturbations in sea level that result from rapid changes in the mass of, otherwise difficult to measure, land-ice reservoirs can be used to infer the sources and magnitude of melt water. We explore the history of land-ice mass changes through the effect that these mass fluxes have had on both global and regional gr...

Länje, Marcus

Carbonate preservation in the oceans occurs at a depth called the carbonate compensation depth (CCD). The CCD is where the input rate of carbonate from the surface of the ocean is balanced by the dissolution rate. Factors controlling the CCD are the CO2 in the atmosphere, weathering, and productivity in the surface water, the depth of the lysocline and deep water currents (and their ocean circulation). Two previous studies have investigated the variation of the CCD through geologic time, one in ...

Wells, Susan K.

Approved for public release; distribution is unlimited / Historically, studies on decorrelation scales have been conducted in the deep ocean waters. As the Navy shifts its interest toward the less understood shallow water regions, decorrelation scales need to be computed in order to use formerly deep water models such as the Optimum Thermal Interpolation System (OTIS) for shallow water regions such as the Yellow Sea. A data set containing over 35,000 temperature profiles from 1929 to 1991 was ob...

Reitter, Norman Lyle

Approved for public release; distribution is unlimited / The Marine Corps plans to fight battles in the 21st century using the littoral battlespace to maneuver forces from a sea-base to the operational objective. Combat forces ashore will be sustained directly from a sea-base to allow combat elements to maneuver freely without having to defend a rear area. In this type of environment, planners must be able to convert current data, intelligence, and status reports of units ashore into useful plan...

Taylor, Stuart M.

Approved for public release; distribution is unlimited / The objectives of this study were to enhance understanding of the parameters affecting transmission loss in the shallow waters of the Timor Sea and to conduct a performance analysis of the range dependent acoustic PE model, RAM. The study utilized transmission loss data (from 10-1600 Hz) collected by DSTO and NAWC during the SWISS 1 experiment held in the Sahul Shelf area in early March 1994 in waters ranging from 60 to 120 m depth. In add...

Pinto, Renato Lima

Approved for public release; distribution is unlimited / With the recent conflict in Bosnia-Herzegovina being in the world news front, the Adriatic Sea has become an important strategic operating area for the North Atlantic Treaty Organization (NATO) and for the U.S. Navy. The NATO Undersea Research Centre located in La Spezia, Italy carried out the Otranto Gap (OGAP) project in 1994 and 1995 to assess the oceanography and bottom geology of the Southern Adriatic. As part of this project, the OGE...

Beaulieu, Marie-Claire Anne, 1979-

The sea has two major roles in Greek mythology. It is associated with the voyage into Hades, and as the primordial water, Oceanus, it represents vitality and even eternal life. Until now, scholars have viewed these two aspects as fundamentally antinomic. I propose to treat them as complementary to show that the sea is an intermediary locus between the earth and the Underworld that allows initiatory passages to adulthood, heroization, and divinization by symbolic death and return to life. For wom...

Lindaman, Maxwell A

Uranium paleoredox proxies such as enrichment factors and 238U/235U ratios can be used to reconstruct redox conditions in ancient water masses on local and global scales based on the differential behavior of uranium in oxic, suboxic, and anoxic environments. Many studies have focused on black shales due to their high levels of metal enrichment and association with climactic events. However, the influence of local effects on uranium accumulation is uncertain, particularly in ancient epeiric sea e...

Clark, Margaret Kathleen

This paper addresses intertextual similarities of ethnographical and geographical details in Xenophon’s Anabasis and Apollonius of Rhodes’ Argonautica and argues that these intertextualities establish a narrative timeline of Greek civilization on the Black Sea littoral. In both these works, a band of Greek travellers proceeds along the southern coast of the Black Sea, but in different directions and at vastly different narrative times. I argue that Apollonius’ text, written later than Xenophon’...

LeBlanc, Alain, 1952-

No description available.

Donovan, Joseph James.

No description available.

Vocisano, Rinaldo Antonio.

No description available.

Bernberg, Oskar

The depth information on today’s nautical charts are often inaccurate. This is due to the fact that the data used often is taken from measurements done in the late 1800’s using contemporary methods. With the increasingly widespread use of chartplotters (a marine GPS unit which contains a nautical chart), especially in recreational boats, this has become a big problem.This project aims to receive and process data from such navigation equipment. The data is processed and transmitted wirelessly to ...

Childerhouse, Simon, n/a

New Zealand sea lion (Phocarctos hookeri) is a pinniped endemic to New Zealand and is among the rarest of sea lion species. New Zealand sea lions are incidentally caught in the trawl fishery for squid around the Auckland Islands, and a sea lion catch-limit or Fishing Related Mortality Limit (FRML) is used to manage this interaction. Since 2003 such limits have been calculated using an age-structured Bayesian population model. One problem with this approach is that several key demographic paramet...

Sims, Miranda, n/a

For Maori the cultural landscape is the foundation of traditional, historical and spiritual values and is fundamental to their cultural ideology. It is the relationship between people and the land that bestows Maori with a sense of cultural identity and belonging. At present the cultural landscape is under increasing pressure from inappropriate development, resulting not only in the destruction of the physical landscape but also defilement of associated intrinsic values. Planning for Maori cult...

Lee, Charles Kai-Wu

The recently proposed and experimentally validated Equilibrium Model provides the most detailed description of temperature's effect on enzyme catalytic activity to date. By introducing an equilibrium between Eact, the active form of enzyme, and Einact, a reversibly inactivated form of enzyme, the Equilibrium Model explains apparent enzyme activity loss at high temperatures that cannot be accounted for by irreversible thermal denaturation. The Equilibrium Model describes enzyme behavior in the ...

Asselin, Natalie Claudette

An understanding of the adaptability of belugas (Delphinapterus leucas) to changing ice-conditions is required to interpret and predict possible changes in habitat selection in response to projected loss of sea ice throughout the circumpolar Arctic. Beluga spring distribution in the eastern Beaufort Sea was described by analyzing observations from aerial surveys conducted from 1975 to 1979. Repeated surveys along the Franklin Bay fast-ice edge in June 2008 were used to study the distribution and...

Blouw, Christina

Accumulation of dynamic and thermodynamic forces in the Arctic are decreasing the extent of thin annual sea ice which polar bear rely on for survival. It is imperative that we identify the preferred habitat of polar bears to fully understand their future requirements. In this thesis, surveys of polar bear tracks and the surrounding sea ice variables, at various scales, were recorded. Sea ice roughness was measured through surveys of the sample area in situ, with an electromagnetic induction ...

Potvin, JOSHUA

Champlain Sea Clay (also known as Leda Clay) is a sensitive marine clay that was deposited within the limits of the Champlain Sea transgression during the final retreat of the Laurentide ice sheet. Upon isostatic rebound, the watersheds incised deep river valleys throughout the Ottawa region. These sensitive clay river banks have been shown to be highly susceptible to large retrogressive landslides. A cone penetration testing and hydrogeological program was developed in this thesis to characteri...

Inaccessibility due to harsh weather conditions and perennial sea ice has left the Weddell Sea embayment (WSE) vastly under-studied in comparison to other regions of Antarctica. Yet understanding its deglacial history since the Last Glacial Maximum (LGM) is vital for understanding the dynamics and stability of the Antarctic ice sheet. Additionally, the debate continues as to the magnitude and timing of West Antarctic Ice Sheet (WAIS), Antarctic Peninsula Ice Sheet (APIS) and East Antarctic Ice S...

Sajjad, Noman

Structural restoration has been carried out on the northern North Sea (60-62&#186;N), based on the reprocessed, interpreted and depth converted seismic lines NSDP84-1 and 2. Two major rifting events have previously been recognized in the area during the Mesozoic: the Permo-Triassic and Jurassic extension phases. Different structures were formed or, in some cases, the same structures were reactivated during the Permo-Triassic and Jurassic rifting phases. Permo-Triassic rifting affected a 125 km w...

Krus, Kristofer

The problem of real-time simulation of ocean surface waves, ship movement and the coupling in between is tackled, and a number of different methods are covered and discussed. Among these methods, the finite volume method has been implemented in an attempt to solve the problem, along with the compressible Euler equations, an octree based staggered grid which allows for easy adaptive mesh refinement, the volume of fluid method and a variant of the Hyper-C advection scheme for compressible flows fo...