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 12 of 12 for “"Riverine discharge"”.
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Coastal Wetland Dynamics Under Sea-level Rise and Wetland Restoration in the Northern Gulf of Mexico using Bayesian Multilevel Models and a Web Tool
… and this effect is substantial in the medium riverine discharge regimes. In Louisiana coast, breakwater construction and hydrological alteration restoration are more effective restoration methods compared to vegetation planting and marsh creation, and wetland restoration is predicted to reduce …
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Phase Speciation of Carbohydrates and Dioxins in Rivers and Coastal Waters in the Northern Gulf of Mexico
… CHO, with high concentrations during high riverine discharge in March and May 2011, showing the influence of the Pearl River and flooding event from the Mississippi River through Bonnet Carr spillway. There was a strong seasonality in the distribution and partitioning of CHO. Terrestrial …
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Satellite indices of fluvial influence in coastal waters
<p>In this dissertation a suite of satellite, discharge and in-situ measurements is used to explore the spatio-temporal distribution of terrestrial constituents in coastal environments. The covariance between riverine delivery of optically active constituents and the corresponding optical …
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Quantifying The Increased Resiliency Of Chesapeake Bay Hypoxia To Environmental Conditions: A Benefit Of Nutrient Reductions
… (35-year) average due to anomalously high riverine discharge. To quantify the impact of watershed nutrient reductions, conventional statistical methods were employed in concert with a 3-D numerical modeling approach to estimate the enhanced resiliency of hypoxia in the Chesapeake Bay to …
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Interactions between rivers and coastal margins in the Alaskan Arctic
… Alaskan Arctic coastal margins only receive riverine input of terrestrial organic material from late spring through late summer. This work examines the delivery, transformation, and distribution of organic material within Stefansson Sound, an Alaskan river-fed estuary, at the beginning and …
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Development and application of a three-dimensional water quality model in a partially-mixed estuary, Southampton Water, UK
… of oxygen demanding organic sewage effluent discharged from a number of points. A persistent moderate DO sag (DO saturation > 80%) was observed in the upper Itchen Estuary throughout the year. In the lower Itchen Estuary and Southampton Water, the waters were DO saturated during the …
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Weathering and riverine fluxes in pristine and controlled river catchments in Iceland
… 1998 to 2003 in order to constrain the natural discharge regime and fluxes of suspended- and dissolved material. This river monitoring resumed in 2007 in order to assess the impact of damming Jökulsá á Dal and the construction of Hálslón reservoir and Kárahnjúkar power plant on these riverine …
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The Observation, Modeling, and Retrieval of Bio-Optical Properties for Coastal Waters of the Southern Chesapeake Bay
… in coastal Case 2 waters. Strongly influenced by riverine discharge, the shallow coastal waters of the southern Chesapeake Bay provide challenges and opportunities to develop regionally specific IOP retrieval methods from remotely sensed ocean color imagery.</p> <p>A semi-analytical radiative …
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Long Term Nutrient and Chlorophyll a Dynamics across Long Island Sound and Impacts on Dissolved Oxygen Conditions within the Western Sound (1991-2019)
… and Atmospheric Administration (NOAA) and discharge data from United States Geological Survey (USGS) from 1991 to 2019. Three main questions are addressed:</p> <p>1) How do nitrogen loads and CHLA concentrations vary across the Sound and how have they changed over the past 30 years in …
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POPULATION DYNAMICS AND GEOCHEMISTRY OF BENTHIC AND PLANKTONIC FORAMINIFERA TO INTERPRET THE PALEOCEANOGRAPHIC CHANGES ACROSS THE CENOMANIAN-TURONIAN OCEANIC ANOXIC EVENT 2 AT LOW AND HIGH LATITUDES
… increase in rainfall, weathering intensity, and riverine discharge may have disrupted normal oceanic circulation, expanding the Oxygen Minimum Zone (OMZ). At low latitudes, the extinction of Boreal taxa and the dominance of warm water taxa indicate the emplacement of more eutrophic conditions, …
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Simulating Anthropogenic and Climatic Influences On Fluvial Sediment Load In the Southeastern U.S. and Central Europe
<p>Quantifying variable riverine sediment discharge over time in response to climate and human pressure is crucial to understanding past, present and future patterns of sediment flux to the worlds' oceans. The need for this data is critical in light of changing anthropogenic activities, global …
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Probabilistic source-to-sink analysis of the provenance of the California paleoriver: implications for the early Eocene paleogeography of western North America
… to the what magnitude and recurrence interval of riverine discharge is preserved in the Colton-Wasatch Fm. stratigraphy, and consider the effects this has on scaling discharge to the paleo-catchment area of the system. We develop new scaling relationships between discharge and catchment area using …