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The coastline along southeastern North Carolina consists of a series of low-relief retrogradational barriers that are frequently impacted by storm activity. The response of two of these barriers to storms is a function of the pre-storm condition of the beach, the nature of the underlying geology, the offshore sediment supply, and the presence of inlets.
Significant phosphate deposits have been documented in the Miocene Pungo River Formation and the Quaternary sands of southern Onslow Bay, North Carolina (Frying Pan phosphate district).
Quantitative analysis of 15 geomorphic attributes of the Mid-Atlantic barrier coast has revealed that there are systematic variations in the geomorphic arrangement of coastal features.
Simple and easily reproducible techniques have been used to construct two objective cyclone climatologies of the North Atlantic-European sector. The goal of this study is to increase understanding of cyclones with the potential to cause damage, in particular, those reaching Beaufort category 7 and above.
The spatial variability of air flow through complex topography is an important, but not fully understood, component of dune development and dynamics. This study examines the spatial variability of the wind field in a linear blowout in coastal dunes at Jockey's Ridge State Park, on the Outer Banks of North Carolina.
Browns and New River Inlets are located in southeastern North Carolina within the central portion of Onslow Bay and form Onslow Beach's northern and southern borders respectively. Inlet changes and the associated impacts on the adjacent shorelines were determined from a GIS based analysis of digitized aerial photographs (1938 to 1997) and historic charts.
Spectral analysis of the 1962 great Atlantic coast storm penetration along the Outer Banks of N Carolina and Fenwick Island, Maryland, reveals along-the-coast periodicities ranging in wavelength from 14km to 15km. Periodicities with similar wavelengths exist in long-term mean rates of change of the shoreline and storm-surge penetration line.
The presence of a soil zone under a portion of the large barrier chain, which makes up much of the North Carolina coast, and the absence of this zone under the remainder of the barrier has led to a re-evaluation of the mode of formation and the evolutionary development of this stretch of coastline during Holocene time.A primary barrier, formed during a rising sea, became detached by flooding of
Geographic Information Systems (GIS), along with modem mapping technologies such as Real Time Kinematic GPS and LIDAR, allow us to perform rapid surveys, integrate data from various sources and times, and analyze them to gain better understanding of evolution of coastal topography.
Spatially and temporally extensive nearshore bathymetric datasets have recently been analyzed with complex principal component analysis (CPCA) to extract propagating spatial patterns that constitute most to the dominant lower-dimensional structure in the datasets.
The Outer Banks dunes received considerable attention from coastal scientists who reported on their creation in the 1930's in a location that previously had not been conducive to dune formation. It was argued that such artificial landforms cannot maintain themselves in situations where they do not occur naturally.
Seismic and vibracore data from the continental shelf as well as borehole data from an adjacent barrier island indicate that the migrating shoreface, responding to rising sea level, has nearly completely removed the entire coastal sedimentary record in northern onslow Bay, North Carolina.
The shoreline rate-of-change statistic is calculated from sequential measurements of shoreline position. In this paper we suggest that an understanding of the processes governing shoreline behavior will greatly aid response-centered analyses.
The U.S. Marine Corps Air Station, Cherry Point, North Carolina, is located in southeastern Craven County in the Coastal Plain physiographic province. The Air Station is underlain by four freshwater-bearing aquifers--the surficial, Yorktown and upper and lower Castle Hayne. These aquifers are composed primarily of sand and sandy limestone to a depth of about 500 feet below land surface.
Hutaff Island is a 6.0-km (3.7-mile) long undeveloped barrier located in southwestern Onslow Bay, North Carolina. The barrier is bordered by New Topsail Inlet to the northeast and Rich Inlet to the southwest, and has historically been influenced by several adjacent tidal inlets with contrasting behaviors.
Plant community migration models for coastal wetlands assume that migration rates are a function of landscape slope and the rate of sea level rise. In the Albemarle-Pamlico estuarine system in coastal North Carolina, relative rates of sea level rise are between 30-40 cm per century and landscape slope is minimal.
Scientists expect temperatures on Earth to get substantially warmer over the course of the 21st century, causing storm systems to intensify and sea-level rise to accelerate--these changes will likely have dramatic impacts on how the coastlines of tomorrow will evolve. Humans are also playing an increasingly important role in shaping Earth's coastal systems.
This study examines the ecological effects of sea-level rise on shorezone in the Neuse River estuary and western Pamlico Sound, NC. Shorezone is defined here in an ecohydrological context as the area of wetland that extends from an estuarine shoreline landward to where the hydrologic influence of sea level diminishes and terrestrial hydrology dominates.
There have been few attempts to survey the U.S. coasts in order to understand the extent and magnitude of the problems that are being faced by coastal zone managers. The last national assessment of shore erosion and its economic implications was undertaken by the U.S. Army Corps of Engineers in 1971.