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 53 for “"Coastal systems"”.
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Synergy in the evaluation of natural coastal systems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1994.
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Understanding the Fate of the Neurotoxin Domoic Acid In Coastal Systems
<p>The elderly club program (ECP), a community-based intervention, has been implemented to support self-help organizations and promote the health and quality of life of seniors in Thailand. Due to dramatic increases in aging populations, it is important to determine whether or not the club …
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Predictive modelling and coastal storm responsea study of urban and natural coastal systems
… combined with the growth of population in the coastal zones are exacerbating risk in coastal areas . Proper mitigation plans are necessary to reduce the impact of extreme events on those areas. In many cases, the development of those plans is based on early warning systems, a combination of …
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Larval fish assemblages of selected estuarine and coastal systems in Kwazulu-Natal, South Africa
… and were examined in three large estuarine systems, a surf zone habitat and in the nearshore marine environment. In addition, two 24-h inlet studies were undertaken to ascertain diel patterns. Relationships between larval densities with environmental variables were also examined to gain …
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Late Quaternary Evolution and Stratigraphic Framework Influence on Coastal Systems along the North-Central Gulf of Mexico, USA
<p>Coastal systems in the Gulf of Mexico are threatened to reduced sediment supply, storm impacts and relative sea level rise (RSLR). The geologic record can provide insights of geomorphic threshold crossings (formation, progradation, transgression, destruction) to these forcing mechanisms to …
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High resolution, in-situ studies of seawater carbonate chemistry and carbon cycling in coastal systems using CHANnelized Optical System II
… impacts of changing ocean chemistry on marine ecosystems. This thesis describes the development of a near-continuous, in-situ dissolved inorganic carbon (DIC) sensor, CHANnelized Optical System (CHANOS) II, suitable for deployment from both mobile and stationary platforms. The system delivers DIC …
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High resolution, in-situ studies of seawater carbonate chemistry and carbon cycling in coastal systems using CHANnelized Optical System II
… impacts of changing ocean chemistry on marine ecosystems. This thesis describes the development of a near-continuous, in-situ dissolved inorganic carbon (DIC) sensor, CHANnelized Optical System (CHANOS) II, suitable for deployment from both mobile and stationary platforms. The system delivers DIC …
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Investigation factors that control trace metal toxicity in coastal systems : a temporal and spatial analysis of kinetically inert copper in Boston Harbor
… resuspension may be a source of inert Cu to coastal waters. Consistently significant inert Cu concentrations at a site near a salt marsh implied that the presence of sulfides may result in formation of inert Cu. No correlation between inert Cu and chlorophyll a was observed, suggesting that …
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Atmospheric and spatial drivers of egg abundance in beach nesting shorebirds across an urban-coastal gradient of the Rockaway Peninsula, New York
… is essential for conservation in dynamic coastal systems. This study evaluated the influence of atmospheric, geomorphological, and anthropogenic factors on egg abundance and nesting patterns across four distinct areas of the Rockaway Peninsula, New York. Descriptive analyses revealed clear …
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Organic matter remineralization in coastal sediments in and around Kane‘ohe Bay, Hawaiʻi
… nutrients (nitrogen, phosphorus) and carbon in coastal waters on time scales ranging from seasonal fluctuations to long, geologic timescales. This dissertation examines several aspects of OM remineralization in marine sediments, and addresses fundamental questions that link organic matter …
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The ecology of some urban-impacted coastal vleis on the Cape Flats near Cape Town, with special reference to phytoplankton periodicity
… of the winter-rainfall, Mediterranean-climatic systems of the Cape Peninsula was found to not only be limited to South Africa. The literature survey undertaken for this study (Chapter 1) revealed•a general lack of information for shallow, nutrient-enriched, coastal systems, with virtually no …
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Tidally Induced Transport Dynamics in a Wadden Sea Tidal Basin and Its Changes Under Future Sea Level Rise Scenarios
Coastal systems in the Wadden Sea are shaped by the interplay between tidal dynamics, basin geomorphology, and atmospheric forcing. These interactions create spatial structures of hydrodynamic connectivity that govern transport processes, ecological functioning, and the interpretation of long-term …
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Unifying multi-source data and modeling perspectives to investigate connectivity and material transport in coastal river deltas
… sediment at the mouths of rivers. Deltaic systems tend to self-organize into an elaborate connected network of channels and islands which interact and exchange fluxes of matter and energy, and understanding this "hydrological connectivity" is of key interest to restoration …
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Physiological and behavioral responses, and their variability, in squid, Doryteuthis pealeii, embryos and paralarvae reared under chronic ocean acidification
… like warming, are occurring rapidly in coastal systems. There is concern about the impacts these stressors may have on the early development of species that use the nearshore as nursery habitat. The inshore longfin squid, Doryteuthis pealeii, plays an important role in the northwest …
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Storm signatures in coastal ponds and marshes over the late Holocene
Tropical cyclones pose a growing threat to coastal populations, especially as both populations and infrastructure are increasingly concentrated along the eastern coast of the United States. This thesis seeks to characterize the impacts of storms on coastal ponds and marshes along the eastern coast …
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Eco-geomorphological and hydrodynamic analysis of Mediterranean microtidal beaches in Southern Sardinia
… increasingly having an impact on the marine and coastal environment, with rising sea levels and a growing frequency and intensity of extreme weather and marine events. These phenomena threaten the stability of coastal systems, accelerating beach erosion, damaging infrastructure and exposing …
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Optical Signatures of Bioavailable and Terrigenous Dissolved Organic Matter Across Long Island Sound and Hudson River Estuaries
… fundamental processes governing DOM cycling in coastal systems. Results demonstrate that variability in DOM optical signatures reflects the interplay between biological production, microbial transformation, and hydrologic forcing. At the microscale, laboratory incubations and cultures with …
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Establishment of ecological functions in transplanted meadows of the seagrass Posidonia australis
… in helping to maintain the biodiversity of coastal systems in many parts of the world, due to large areas of seagrass being lost over the last 50 years. The success of any restoration programme should ultimately be based on transplanted seagrass meadows acting in a similur ecological manner …
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GLOBAL ASSESSMENT OF RADIOCARBON ISOTOPIC ANALYSIS FOR PARTICULATE AND DISSOLVED ORGANIC CARBON IN RIVERINE SYSTEMS
… organic carbon (POC, DOC) into inland waters and coastal systems and provide a fundamental linkage between the terrestrial, oceanic, and atmospheric carbon reservoirs. Recent studies have examined the relationship between the quantity and form (POC vs. DOC) of carbon delivered to the aquatic …
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A Parametric Model for Predicting Submarine Dynamic Stability in Early Stage Design
… GEORGE was developed and used heavily at Naval Coastal Systems Laboratory (NSWCPC) in Panama City, FL and the CEBAXI and LA_57 program was developed partially at University of California State at Long Beach and at the Carderock Division of the Naval Surface Warfare Center (NSWCCD) and is in use …
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