An integrated hypothesis for regional patterns of shoreline change along the Northern North Carolina Outer Banks, USA

Lazarus, Eli Dalton and Murray, A. Brad 2011. An integrated hypothesis for regional patterns of shoreline change along the Northern North Carolina Outer Banks, USA. Marine Geology 281 (1-4) , pp. 85-90. 10.1016/j.margeo.2011.02.002

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Abstract

Combining analyses of plan-view shoreline change and shoreline curvature with existing nearshore geologic and bathymetric data and the results of a recent theoretical, large-scale shoreline-evolution model that couples geologic framework to alongshore sediment transport, we propose an integrated explanation for persistent patterns of shoreline change observed on the northern Outer Banks of North Carolina, USA. Concentrated sources of coarse-grained sediment, derived from relict fluvial stratigraphy or densely grouped relict inlet channels excavated from the shoreface, may both enable persistence of nearshore bathymetric anomolies and control multi-km-scale undulations in shoreline curvature, which in turn affect gradients in wave-driven alongshore sediment transport that drive long-term shoreline change.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Earth and Environmental Sciences
Subjects:	Q Science > QE Geology
Uncontrolled Keywords:	Coastal morphodynamics ; Shoreline change ; Paleo-channels ; Nearshore bedforms ; North Carolina Outer Banks
Publisher:	Elsevier
ISSN:	0025-3227
Last Modified:	01 Feb 2017 03:01
URI:	https://orca.cardiff.ac.uk/id/eprint/12087

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