Short-term development of Arctic beach system: Case study of wave control on beach morphology and sedimentology (Calypsostranda, Bellsund, Svalbard)

Piotr Zagórski , Karolina Mędrek , Mateusz Moskalik , Jan Rodzik , Agnieszka Herman , Łukasz Pawłowski , Jaskólski Marek

Abstract

The objective of this research is to determine the impact of waves on the segregation of sediment within the area of its supply in the context of meteorological conditions. The research was conducted on a 4 km section of the shore of Calypsostranda (Bellsund, West Spitsbergen), shaped by waves such as swell, wind waves, and tides. Particular attention was paid to the diversity and variability of the surface texture within the intertidal zone. Meteorological measurements, recording of wave climate, as well as analysis of the grain-size distribution of the beach sediments were performed. Nearshore bathymetry, longshore drifts, episodic sediment delivery from land, as well as resistance of the shore to coastal erosion and direction of transport of sediments in the shore zone are important factors controlling shore development. Data show that wind waves contribute to erosion and discharge of material from the nearshore and intertidal zone. The research also shows that oceanic swell, altered by diffraction, reaching the shore of Calypsostranda contributes to better sorting of sediment deposited on the shore through washing it out from among gravels, and longshore transport of its finest fraction. The grain size distribution of shore sediments is significantly changed already during one tidal cycle. The degree of this modification depends not only on wave height and period but on the direction of wave impact. The shore of Calypsostranda can be regarded as transitional between high and low energy coasts.
Author Piotr Zagórski
Piotr Zagórski,,
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, Karolina Mędrek
Karolina Mędrek,,
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, Mateusz Moskalik
Mateusz Moskalik,,
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, Jan Rodzik
Jan Rodzik,,
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, Agnieszka Herman (FOG / IO / DPO)
Agnieszka Herman,,
- Division of Physical Oceanography
, Łukasz Pawłowski
Łukasz Pawłowski,,
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, Jaskólski Marek
Jaskólski Marek,,
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Journal seriesPolish Polar Research, ISSN 0138-0338, e-ISSN 2081-8262, (N/A 40 pkt)
Issue year2019
Vol40
No2
Pages79-104
Publication size in sheets1.25
Keywords in EnglishArctic, Spitsbergen, photogrammetric granulometry, sediment texture, impact of waves
ASJC Classification1105 Ecology, Evolution, Behavior and Systematics; 2303 Ecology
DOIDOI:10.24425/ppr.2019.128368
URL http://journals.pan.pl/dlibra/publication/128368/edition/111975/content
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa - Użycie Niekomercyjne - Bez utworów zależnych (CC-BY-NC-ND); with publication
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 28-01-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.664; WoS Impact Factor: 2018 = 1.118 (2) - 2018=2.076 (5)
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