Impact of coastline orientation on the dynamics of foredune growth (Łeba Barrier, south Baltic Sea coast, Poland)

Dłużewski Maciej (), Dłużewska Joanna Rotnicka (), Hesp Patrick Alan (), Tomczak Joanna Oliwia () and Dubis Lidiya ()
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Dłużewski Maciej: Department of Geomorphology, Faculty of Geography and Regional Studies, University of Warsaw, Poland
Dłużewska Joanna Rotnicka: Institute of Geology, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University in Poznań, Poland
Hesp Patrick Alan: Beach and Dune Systems (BEADS) Laboratory, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
Tomczak Joanna Oliwia: Department of Geomorphology, Faculty of Geography and Regional Studies, University of Warsaw, Poland
Dubis Lidiya: Department of Landscape Planning and Design, Institute of Mathematics, Informatics and Landscape Architecture, The John Paul II Catholic University of Lublin, Poland

Miscellanea Geographica. Regional Studies on Development, 2023, vol. 27, issue 4, 147-156

Abstract: There are many factors controlling the aeolian sand transport rate on the beach and thus, variation in rates can impact foredune development. This study analyses coastline orientation as one such factor. The research was conducted at two sites on the Łeba Barrier, south Baltic Sea coast, Poland, located 4.2 km apart and which differed in coastline orientation by 20°. Based on wind data the potential aeolian sand transport rate for the period 2006–2017 was calculated. It appeared that taking into account the coastline orientation, the landward sand transport strongly exceeded the seaward and alongshore transport at one site, whereas the other site was dominated by alongshore sand transport. Topographic surveys carried out every 6 months showed that net sand deposition within the foredune at the coast dominated by landward transport was two and a half times greater than at the other site and resulted in significant dune growth.

Keywords: Foredune; wind regime; fetch distance; coastline orientation; potential aeolian transport rate; sediment budget (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:mgrsod:v:27:y:2023:i:4:p:147-156:n:4

DOI: 10.2478/mgrsd-2023-0020

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