Novel sediment sampling method provides new insights into vertical grain size variability due to marine and aeolian beach processes
Bedform
DOI:
10.1002/esp.5518
Publication Date:
2022-11-23T01:10:39Z
AUTHORS (5)
ABSTRACT
Abstract In sandy beach systems, the aeolian sediment transport can be governed by vertical structure of layers at bed surface. Here, data collected with a newly developed sand scraper is presented to determine high‐resolution grain size variability and how it affected marine processes. Sediment samples up 2 mm resolution down 50 depth were three beaches: Waldport (Oregon, USA), Noordwijk (the Netherlands) Duck (North Carolina, USA). The results revealed that in individual differ considerably from median total sample. most distinct temporal occurred due processes resulted significant morphological changes intertidal zone. during high water both fining coarsening surface sediment. Especially near upper limit wave runup, formation veneer coarse was observed. Although expected near‐surface events observed times, opposite trend also occurred. latter could explained propagation bedforms within zone locally resulting lays basis for future sampling strategies models investigate feedbacks between transport, distribution.
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