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The evolution of embryonic creek systems in a recently inundated large open coast managed realignment site

Dale, J. ORCID:, Burgess, H. M., Burnside, N. G., Kilkie, P., Nash, D. J. and Cundy, A. B. (2018) The evolution of embryonic creek systems in a recently inundated large open coast managed realignment site. Anthropocene Coasts, 1 (1). pp. 16-33. ISSN 2561-4150

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To link to this item DOI: 10.1139/anc-2017-0005


Managed realignment (MR) schemes are being implemented to compensate for the degradation of coastal habitats. However, evidence suggests that MR sites have lower biodiversity than anticipated, which has been linked to poor drainage. Despite creek networks playing an important role in enhancing site drainage in natural intertidal environments, there remains a shortage of data on the formation and evolution of creeks within MR sites. This study evaluates creek development at the Medmerry Managed Realignment Site, UK. Creek development is investigated using differential global positioning system (dGPS) data, supported by sedimentological analyses and a high-resolution digital surface model (DSM) derived from images taken using a small unmanned aerial vehicle. Measurements indicated that creeks will develop relatively quickly, but are influenced by differences in the sub-surface sedimentological conditions. A suitable level of agreement was found between the DSM and dGPS measurements, demonstrating the appropriateness of this method to study creek development within intertidal environments at a higher resolution than traditional surveying techniques. These results are used to propose the collapse of sub-surface piping as the primary creek formation mechanism. Findings are discussed in terms of increasing the success of MR schemes and enhancing site design to maximise the ecosystem services provided.

Item Type:Article
Divisions:No Reading authors. Back catalogue items
ID Code:106688
Publisher:Canadian Science Publishing


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