Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing
Sea-level data from six tide gauge stations along the northern coast of the Persian Gulf were analyzed both in time and frequency domain to evaluate meteorological forcing. Spectral analyses indicated that mixed, predominantly semi-diurnal tides were dominant at all stations, but low-frequency fluct...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/8/4/285 |
| _version_ | 1797570536713224192 |
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| author | Naghmeh Afshar-Kaveh Mostafa Nazarali Charitha Pattiaratchi |
| author_facet | Naghmeh Afshar-Kaveh Mostafa Nazarali Charitha Pattiaratchi |
| author_sort | Naghmeh Afshar-Kaveh |
| collection | DOAJ |
| description | Sea-level data from six tide gauge stations along the northern coast of the Persian Gulf were analyzed both in time and frequency domain to evaluate meteorological forcing. Spectral analyses indicated that mixed, predominantly semi-diurnal tides were dominant at all stations, but low-frequency fluctuations correlated well with atmospheric pressure and wind components. Non-tidal sea-level fluctuations up to 0.75 m were observed along the northern coasts of the Gulf due to the combined action of lower atmospheric pressure and cross-shore wind. Coherency between low-frequency sea-level records and mean sea-level pressure indicated that the latter usually leads to sea-level fluctuations between 1 and 6.4 days. In contrast, the same analysis on the wind velocity and sea level revealed that the former lags between 3 and 13 days. The effect of wind stress on coastal sea-level variations was higher compared with the effect of atmospheric pressure. Concurrent analysis of low-pass-filtered sea-level records proved that the non-tidal wave moves from west to east along the northern coasts of the Persian Gulf. |
| first_indexed | 2024-03-10T20:25:53Z |
| format | Article |
| id | doaj.art-2c1a6f35c2414656b7141c4409145002 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T20:25:53Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-2c1a6f35c2414656b7141c44091450022023-11-19T21:45:11ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-04-018428510.3390/jmse8040285Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological ForcingNaghmeh Afshar-Kaveh0Mostafa Nazarali1Charitha Pattiaratchi2School of Civil Engineering, Iran University of science and technology, Tehran 16846-13114, IranDepartment of Coastal Engineering, Pouya Tarh Pars Consulting Engineers Company, Tehran 14376-15613, IranOceans Graduate School & the UWA Oceans Institute, The University of Western Australia, Perth 6009, AustraliaSea-level data from six tide gauge stations along the northern coast of the Persian Gulf were analyzed both in time and frequency domain to evaluate meteorological forcing. Spectral analyses indicated that mixed, predominantly semi-diurnal tides were dominant at all stations, but low-frequency fluctuations correlated well with atmospheric pressure and wind components. Non-tidal sea-level fluctuations up to 0.75 m were observed along the northern coasts of the Gulf due to the combined action of lower atmospheric pressure and cross-shore wind. Coherency between low-frequency sea-level records and mean sea-level pressure indicated that the latter usually leads to sea-level fluctuations between 1 and 6.4 days. In contrast, the same analysis on the wind velocity and sea level revealed that the former lags between 3 and 13 days. The effect of wind stress on coastal sea-level variations was higher compared with the effect of atmospheric pressure. Concurrent analysis of low-pass-filtered sea-level records proved that the non-tidal wave moves from west to east along the northern coasts of the Persian Gulf.https://www.mdpi.com/2077-1312/8/4/285sea levelwind velocityatmospheric pressurespectral analysis |
| spellingShingle | Naghmeh Afshar-Kaveh Mostafa Nazarali Charitha Pattiaratchi Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing Journal of Marine Science and Engineering sea level wind velocity atmospheric pressure spectral analysis |
| title | Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing |
| title_full | Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing |
| title_fullStr | Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing |
| title_full_unstemmed | Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing |
| title_short | Relationship between the Persian Gulf Sea-Level Fluctuations and Meteorological Forcing |
| title_sort | relationship between the persian gulf sea level fluctuations and meteorological forcing |
| topic | sea level wind velocity atmospheric pressure spectral analysis |
| url | https://www.mdpi.com/2077-1312/8/4/285 |
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