Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach
The study investigates cross-shore outer sand bar dynamics in an open-coast non-tidal beach at the Bulgarian Black Sea due to wave climate. On seasonal to short-term (1–2 years) time scale, monthly field measurements of the outer bar profiles were related to respective modeled nearshore wave data. H...
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ftmdpi:oai:mdpi.com:/2076-3263/11/5/206/ 2023-08-20T04:04:54+02:00 Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach Nataliya Andreeva Yana Saprykina Nikolay Valchev Petya Eftimova Sergey Kuznetsov agris 2021-05-08 application/pdf https://doi.org/10.3390/geosciences11050206 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/geosciences11050206 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 11; Issue 5; Pages: 206 wave climate nearshore bars field data cross-shore bar migration wave conditions wave non-linearity storms teleconnection patterns Black Sea Text 2021 ftmdpi https://doi.org/10.3390/geosciences11050206 2023-08-01T01:40:18Z The study investigates cross-shore outer sand bar dynamics in an open-coast non-tidal beach at the Bulgarian Black Sea due to wave climate. On seasonal to short-term (1–2 years) time scale, monthly field measurements of the outer bar profiles were related to respective modeled nearshore wave data. Hereby, seaward-shoreward bar migration was examined depending on the wave forcing, wave non-linearity, wave transformation scenarios, storms and direction of wave incidence. Analysis revealed that intra-annually highly non-linear waves were responsible for outer bar displacement, while the direction of migration depended on wave period, duration of conditions with wave steepness >0.04, angle of approach and total duration of storms. Short-term bar evolution was mainly governed by wave height and storms’ parameters as the angle of approach and duration. The correlation between the outer bar location and wave height annual variations initiated the first for the explored Black Sea region examination of possible connection between wave height’s temporal fluctuations and the variability of climatic indices the North Atlantic Oscillation (NAO), the Atlantic Multi-decadal Oscillation (AMO), the East Atlantic Oscillation (EA), the Arctic Oscillation (AO), the East Atlantic-Western Russia (EA/WR) and the Scandinavian (SCAND) patterns. According to the results the inter-annual outer bar location may vary depending on periods of maximum annual wave fluctuations, which in turn predominantly depend on indices the EA (4–5, 10–11, 20–30 years), the EA/WR (2–4, 9–13 years) and the NAO (15 years). Text Arctic North Atlantic North Atlantic oscillation MDPI Open Access Publishing Arctic Outer Bar ENVELOPE(-132.203,-132.203,54.083,54.083) Sandy Beach ENVELOPE(-55.731,-55.731,49.917,49.917) Geosciences 11 5 206 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
wave climate nearshore bars field data cross-shore bar migration wave conditions wave non-linearity storms teleconnection patterns Black Sea |
spellingShingle |
wave climate nearshore bars field data cross-shore bar migration wave conditions wave non-linearity storms teleconnection patterns Black Sea Nataliya Andreeva Yana Saprykina Nikolay Valchev Petya Eftimova Sergey Kuznetsov Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach |
topic_facet |
wave climate nearshore bars field data cross-shore bar migration wave conditions wave non-linearity storms teleconnection patterns Black Sea |
description |
The study investigates cross-shore outer sand bar dynamics in an open-coast non-tidal beach at the Bulgarian Black Sea due to wave climate. On seasonal to short-term (1–2 years) time scale, monthly field measurements of the outer bar profiles were related to respective modeled nearshore wave data. Hereby, seaward-shoreward bar migration was examined depending on the wave forcing, wave non-linearity, wave transformation scenarios, storms and direction of wave incidence. Analysis revealed that intra-annually highly non-linear waves were responsible for outer bar displacement, while the direction of migration depended on wave period, duration of conditions with wave steepness >0.04, angle of approach and total duration of storms. Short-term bar evolution was mainly governed by wave height and storms’ parameters as the angle of approach and duration. The correlation between the outer bar location and wave height annual variations initiated the first for the explored Black Sea region examination of possible connection between wave height’s temporal fluctuations and the variability of climatic indices the North Atlantic Oscillation (NAO), the Atlantic Multi-decadal Oscillation (AMO), the East Atlantic Oscillation (EA), the Arctic Oscillation (AO), the East Atlantic-Western Russia (EA/WR) and the Scandinavian (SCAND) patterns. According to the results the inter-annual outer bar location may vary depending on periods of maximum annual wave fluctuations, which in turn predominantly depend on indices the EA (4–5, 10–11, 20–30 years), the EA/WR (2–4, 9–13 years) and the NAO (15 years). |
format |
Text |
author |
Nataliya Andreeva Yana Saprykina Nikolay Valchev Petya Eftimova Sergey Kuznetsov |
author_facet |
Nataliya Andreeva Yana Saprykina Nikolay Valchev Petya Eftimova Sergey Kuznetsov |
author_sort |
Nataliya Andreeva |
title |
Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach |
title_short |
Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach |
title_full |
Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach |
title_fullStr |
Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach |
title_full_unstemmed |
Influence of Wave Climate on Intra and Inter-Annual Nearshore Bar Dynamics for a Sandy Beach |
title_sort |
influence of wave climate on intra and inter-annual nearshore bar dynamics for a sandy beach |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/geosciences11050206 |
op_coverage |
agris |
long_lat |
ENVELOPE(-132.203,-132.203,54.083,54.083) ENVELOPE(-55.731,-55.731,49.917,49.917) |
geographic |
Arctic Outer Bar Sandy Beach |
geographic_facet |
Arctic Outer Bar Sandy Beach |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
Geosciences; Volume 11; Issue 5; Pages: 206 |
op_relation |
https://dx.doi.org/10.3390/geosciences11050206 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences11050206 |
container_title |
Geosciences |
container_volume |
11 |
container_issue |
5 |
container_start_page |
206 |
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1774715322275725312 |