Comparison of Short-Term Changes Caused by Storms along Natural and Protected Sections of the Dziwnow Spit, Southern Baltic Coast

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Abstract
Bugajny, N. and Furmańczyk, K., 2017. Comparison of short-term changes caused by storms along natural and protected sections of the Dziwnow Spit, southern Baltic coast. This paper focuses on a comparison of changes caused by weak storms (significant wave height [Hs] <2.5 m) along a dune coast on a nontidal sea. Repeated observations were made along two 2 km long sections of the southern Baltic coast; one section is a natural coast, and the other features protective structures. Several real-time kinematic GPS surveys were carried out in 2012. The surveys included cross-shore profiles measured from the dune foot to a water depth of 1 m. The profiles were spaced at constant 100 m intervals. In addition, offshore wave data and water level data were collected. Using statistical methods, three types of hydrodynamic conditions were identified and the data grouped accordingly; these groups had different effects on the coast. The coastal changes that occurred along the natural and protected sections of th...

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