Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Winyah Bay (2)
- Acoustic Telemetry (1)
- Atmospheric refractivity (1)
- Beaches (1)
- Biofilms (1)
-
- Biogeochemistry (1)
- Centennial (1)
- Chlorophyll (1)
- Coastal (1)
- Coastal Geology (1)
- Contamination (1)
- Continental shelf (1)
- Dissolved oxygen (1)
- Evaporation ducts (1)
- Filtering (1)
- Genetic algorithms (1)
- Geologic Framework (1)
- Geotagged (1)
- Groundwater (1)
- Guadalquivir (1)
- Gulf of Cadiz (1)
- Hardbottom (1)
- Holocene (1)
- Holocene sediment (1)
- Hydrodynamics (1)
- Inversion methods (1)
- Long Bay (1)
- Longline Surveys (1)
- Microfibers (1)
- Microplastic (1)
- Publication
- Publication Type
Articles 1 - 11 of 11
Full-Text Articles in Entire DC Network
Late Holocene Spit Evolution On Centennial Timescales In The Southeast Delaware Bay, Usa, Ryan Eli Phillip
Late Holocene Spit Evolution On Centennial Timescales In The Southeast Delaware Bay, Usa, Ryan Eli Phillip
Electronic Theses and Dissertations
The relationship between barrier spit growth and longshore drift is well established. However, the role of storm activity in spit evolution on an intermediate (centennial) timescale is more of a mystery due to a knowledge gap between decadal-scale shoreline processes and millennial-scale stratigraphic data. Recent studies in the northwestern Atlantic basin using ground-penetrating radar (GPR) and optically-stimulated luminescence (OSL) are providing the opportunity to study centennial-scale shoreline evolution and examine similar age storm activity. Cape Henlopen, Delaware exhibits preserved remnants of a long-term northward-growing spit coastline that evolved from a recurved spit complex, to a cuspate spit, to the present-day …
Characterizing Diatom Biofilms And Their Influence On The Sand Biogeochemistry Of High Energy Beaches, Logan C. Jarrell
Characterizing Diatom Biofilms And Their Influence On The Sand Biogeochemistry Of High Energy Beaches, Logan C. Jarrell
Honors Theses
High energy beaches are among the most dynamic ecological settings on Earth. Compared to mudflats, diatoms of high energy beaches have been more neglected in the literature, particularly true of the intertidal biofilms that form and dissipate with nutrient cycling and light intensity over the tidal cycle. Although short lived, the productivity of these biofilms may be critical to the organic-poor sand. Through sediment coring and subsequent analyses of the uppermost sand of three suspected biofilm stations—non-runnel, runnel crest, and runnel trough—along with seemingly bare sand as a control, this study sought to verify the presence of diatom biofilms and …
An Evaluation Of Geotagged Twitter Data During Hurricane Irma Using Sentiment Analysis And Topic Modeling For Disaster Resilience, Ike Robert Vayansky
An Evaluation Of Geotagged Twitter Data During Hurricane Irma Using Sentiment Analysis And Topic Modeling For Disaster Resilience, Ike Robert Vayansky
Electronic Theses and Dissertations
Disasters require quick response times, thought-out preparations, overall community, and government support. These efforts will ensure prevention of loss of life and reduce possible damages. The United States has been battered by multiple major hurricanes in the recent years and multiple avenues of disaster response efforts were being tested. Hurricane Irma can be recognized as the most popular hurricane in terms of social media attention. Irma made landfall in Florida as a Category 4 storm and preparation measures taken were intensive thus providing a good measure to evaluate in terms of efficacy. The effectiveness of the response methods utilized are …
Holocene Formation History Of Mud Depocenters On The Continental Shelf In The Gulf Of Cadiz, Southwestern Spain, Mary Lee King
Holocene Formation History Of Mud Depocenters On The Continental Shelf In The Gulf Of Cadiz, Southwestern Spain, Mary Lee King
Electronic Theses and Dissertations
Holocene mud accumulation on the continental shelf in northern Gulf of Cadiz, from the Guadalquivir River to the Tinto-Odiel Estuary, is described as two types of mud depocenters (MDCs): a sheet-like prodelta and mud belt. Despite a substantial number of investigations of this continental shelf (Somoza et al., 1997; Hernández-Molina et al., 2000; Lobo et al., 2001; synthesis: Lobo et al., 2015), information on Holocene sediment facies and a robust stratigraphic age model remained unestablished (Lobo et al., 2002; and Lobo and Ridente, 2014). Objectives of this study are to describe the dynamics of MDC formation in a chrono- and …
Impact Of Data Selection On The Accuracy Of Atmospheric Refractivity Inversions Performed Over Marine Surfaces, Ian Joseph Matsko
Impact Of Data Selection On The Accuracy Of Atmospheric Refractivity Inversions Performed Over Marine Surfaces, Ian Joseph Matsko
Electronic Theses and Dissertations
Within the Earth’s atmosphere there is a planetary boundary layer that extends from the surface to roughly 1 km above the surface. Within this planetary boundary layer exists the marine atmospheric boundary layer, which is a complex turbulent surface layer that extends from the sea surface to roughly 100 m in altitude. The turbulent nature of this layer combined with the interactions across the air-sea interface cause ever changing environmental conditions within it, including atmospheric properties that affect the index of refraction, or atmospheric refractivity. Variations in atmospheric refractivity lead to many types of anomalous propagation phenomena of electromagnetic (EM) …
Hydrodynamic Drivers Of Dissolved Oxygen Variability Within A Highly Developed Tidal Creek In Myrtle Beach, South Carolina, Douglas Matthew Pastore
Hydrodynamic Drivers Of Dissolved Oxygen Variability Within A Highly Developed Tidal Creek In Myrtle Beach, South Carolina, Douglas Matthew Pastore
Electronic Theses and Dissertations
Erosion and water quality degradation have been observed in Singleton Swash in Myrtle Beach, SC, and have been hypothesized to be related to migration of the beach-face channel. Dredging this channel temporarily fixes erosional threats to nearby infrastructure but the effects on water quality are not well understood. It is hypothesized that variations in dissolved oxygen (DO) concentration (used here as a proxy for water quality) within the water column are related to changes in vertical mixing and transport due to oceanic tidal forcing. This study utilizes current meters, pressure sensors, and optical DO probes to measure and study the …
Seasonal Occurrence, Relative Abundance, And Migratory Movements Of Juvenile Sandbar Sharks, Carcharhinus Plumbeus, In Winyah Bay, South Carolina, Caroline Collatos
Seasonal Occurrence, Relative Abundance, And Migratory Movements Of Juvenile Sandbar Sharks, Carcharhinus Plumbeus, In Winyah Bay, South Carolina, Caroline Collatos
Electronic Theses and Dissertations
Winyah Bay, located on the coast of South Carolina, is the fourth largest U.S. estuary by discharge rate (Voulgaris et al. 2002), and provides an annually used habitat for juvenile C. plumbeus (Abel et al. 2006, Gary 2009). From May to September 2016 and 2017, we set a total of 303 bottom longlines in middle and lower Winyah Bay to assess sex ratios, size distributions, and catch per unit effort (CPUE), as well as the potential influence of abiotic parameters on CPUE. A subset of eleven juvenile C. plumbeus was tagged with VEMCO (V16-4H) acoustic transmitters to analyze seasonal occurrence, …
Hardbottom Characterization And Relationship To The Geologic Framework In Long Bay, South Carolina, Cathryn J. Wheaton
Hardbottom Characterization And Relationship To The Geologic Framework In Long Bay, South Carolina, Cathryn J. Wheaton
Electronic Theses and Dissertations
Hardbottom seafloor is a common element among sediment-starved portions of the inner continental shelf along the U.S. Atlantic margin. These areas are characterized by indurated sediment surfaces that are heavily altered by biological and physical processes. Long Bay, in northeastern South Carolina, offers ideal environmental conditions for hardbottom exposure with only patchy Holocene sand deposits, interspersed with extensive hardbottom areas. Here we use high-resolution multibeam bathymetry, CHIRP subbottom profiling and electrical resistivity data, along with surficial sediment samples, hardbottom thin sections, and water column radioisotope (radon-222) analysis to investigate the origin and geologic framework of a region of hardbottom seafloor …
Semi-Quantitative Assessment On Winyah Bay's Microplastic Contamination Levels, Samantha Ladewig
Semi-Quantitative Assessment On Winyah Bay's Microplastic Contamination Levels, Samantha Ladewig
Electronic Theses and Dissertations
Although there is much concern globally regarding microplastic contamination in aquatic environments, there is little documentation on microplastic contamination concentrations within South Carolina inland waters and coastal areas. Specifically, Winyah Bay, SC should be of high priority for microplastic contamination evaluations as it is the third largest drainage basin (47,060 km2) and the second largest (157 km2) estuarine system on the east coast of the United States. Today, the general influencing physical factors on microplastic transport are mostly known by the scientific community, however, transport and deposition patterns of microplastics heavily vary by location depending on various physical, chemical, and …
Approximate Approaches For Nuclear Weak Interaction Rates In Astrophysics, Benjamin M. Anderson
Approximate Approaches For Nuclear Weak Interaction Rates In Astrophysics, Benjamin M. Anderson
Bridges: A Journal of Student Research
Nuclear weak interactions, like beta decay, are important inputs for modeling astrophysical explosions. In the allowed approximation, these processes proceed as Fermi or Gamow Teller (GT) processes where the spins of the electron and neutrino are anti-parallel or parallel, respectively. In the GT case, transition probability is spread over many final states in the daughter nucleus, with each probability determination requiring numerical integration of the available phase space. Developing a fast and accurate method for calculating each contribution to the total decay rate would provide reliable weak rate libraries for astrophysical modelers. The phase space integrand includes the classical statistical …
The Clean Air Act And Its Impact On Ground Level Ozone Pollution Levels In Los Angeles, California, Rebecca Ford
The Clean Air Act And Its Impact On Ground Level Ozone Pollution Levels In Los Angeles, California, Rebecca Ford
Bridges: A Journal of Student Research
Ozone (O3) occurs as a photochemically produced pollutant in the troposphere and its emission and concentration is regulated by the Clean Air Act (CAA) of 1970. The Los Angeles area is an example of how O3 can be a public health hazard and taint a city’s aesthetics and quality of life through photochemical smog. This study was conducted to observe the overall effectiveness of the CAA. I explored daily O3 concentrations from 1980 to the present at three air quality monitoring stations in LA from the AirData database of the U.S. Environmental Protection Agency. National O3 standards were only exceeded …