Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea
<p>Coastal trapped waves (CTW) are a major mechanism to distribute energy from the atmosphere in the ocean and play a significant role in large-scale, low-frequency sea-level and current variability in continental shelf and slope areas. Despite their significance for coastal dynamics, observat...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2022-07-01
|
| Series: | Ocean Science |
| Online Access: | https://os.copernicus.org/articles/18/1081/2022/os-18-1081-2022.pdf |
| _version_ | 1828330490939047936 |
|---|---|
| author | M. Aydın Ş. T. Beşiktepe |
| author_facet | M. Aydın Ş. T. Beşiktepe |
| author_sort | M. Aydın |
| collection | DOAJ |
| description | <p>Coastal trapped waves (CTW) are a major mechanism to
distribute energy from the atmosphere in the ocean and play a significant
role in large-scale, low-frequency sea-level and current variability in
continental shelf and slope areas. Despite their significance for coastal
dynamics, observational evidence of the influence of CTWs on the large-scale
circulation is rather limited. In this study, mode-1 coastal trapped waves
that were captured at sea-level stations at five locations along the
southern coast of the Black Sea are examined together with sea surface
height reanalysis from the Copernicus Marine Service to reveal their generation
mechanisms and role in the coastal dynamics. It is found that the CTWs were
formed when water accumulated on the western shelf after gale-force
alongshore winds in the western Black Sea. Excited waves propagate
along the Black Sea coast from west to east with a speed of 2.3–2.6 m s<span class="inline-formula"><sup>−1</sup></span> and transport the atmospherically induced energy all over the Black
Sea. The coastal current generated by the CTWs (on the order of 1 m s<span class="inline-formula"><sup>−1</sup></span> in magnitude)
and the main Black Sea current merge and flow eastward as a single
structure, resulting in intensification of the Black Sea circulation during
winter. Hence, we present evidence of the influence of CTWs on the
large-scale circulation.</p> |
| first_indexed | 2024-04-13T20:40:04Z |
| format | Article |
| id | doaj.art-b6bacbd9baf64a368417c76dfae4c94c |
| institution | Directory Open Access Journal |
| issn | 1812-0784 1812-0792 |
| language | English |
| last_indexed | 2024-04-13T20:40:04Z |
| publishDate | 2022-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Ocean Science |
| spelling | doaj.art-b6bacbd9baf64a368417c76dfae4c94c2022-12-22T02:30:54ZengCopernicus PublicationsOcean Science1812-07841812-07922022-07-01181081109110.5194/os-18-1081-2022Mechanism of generation and propagation characteristics of coastal trapped waves in the Black SeaM. AydınŞ. T. Beşiktepe<p>Coastal trapped waves (CTW) are a major mechanism to distribute energy from the atmosphere in the ocean and play a significant role in large-scale, low-frequency sea-level and current variability in continental shelf and slope areas. Despite their significance for coastal dynamics, observational evidence of the influence of CTWs on the large-scale circulation is rather limited. In this study, mode-1 coastal trapped waves that were captured at sea-level stations at five locations along the southern coast of the Black Sea are examined together with sea surface height reanalysis from the Copernicus Marine Service to reveal their generation mechanisms and role in the coastal dynamics. It is found that the CTWs were formed when water accumulated on the western shelf after gale-force alongshore winds in the western Black Sea. Excited waves propagate along the Black Sea coast from west to east with a speed of 2.3–2.6 m s<span class="inline-formula"><sup>−1</sup></span> and transport the atmospherically induced energy all over the Black Sea. The coastal current generated by the CTWs (on the order of 1 m s<span class="inline-formula"><sup>−1</sup></span> in magnitude) and the main Black Sea current merge and flow eastward as a single structure, resulting in intensification of the Black Sea circulation during winter. Hence, we present evidence of the influence of CTWs on the large-scale circulation.</p>https://os.copernicus.org/articles/18/1081/2022/os-18-1081-2022.pdf |
| spellingShingle | M. Aydın Ş. T. Beşiktepe Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea Ocean Science |
| title | Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea |
| title_full | Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea |
| title_fullStr | Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea |
| title_full_unstemmed | Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea |
| title_short | Mechanism of generation and propagation characteristics of coastal trapped waves in the Black Sea |
| title_sort | mechanism of generation and propagation characteristics of coastal trapped waves in the black sea |
| url | https://os.copernicus.org/articles/18/1081/2022/os-18-1081-2022.pdf |
| work_keys_str_mv | AT maydın mechanismofgenerationandpropagationcharacteristicsofcoastaltrappedwavesintheblacksea AT stbesiktepe mechanismofgenerationandpropagationcharacteristicsofcoastaltrappedwavesintheblacksea |