Implications of Sea Level Change, Tidal Behavior, and Storm Surges at Port Said Harbor, Egypt | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 104, Volume 29, Issue 2, March and April 2025, Page 1493-1513 PDF (1.18 MB) | ||||
| DOI: 10.21608/ejabf.2025.420292 | ||||
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| Author | ||||
| Abdul-Qader et al. | ||||
| Abstract | ||||
| A detailed analysis of sea level variations at Port Said Harbor, Egypt, was conducted using hourly data from a radar water level sensor collected between May 2018 and February 2023. Surge elevations were calculated by subtracting the astronomical height from the observed sea level using the T_TIDE package, which was also applied to perform harmonic analysis and to calculate tidal datums, revealing a semidiurnal tidal regime with an F-factor of 0.215. Tidal influences accounted for only 1.34% of the observed sea level variations, while surge dynamics, primarily driven by atmospheric pressure and wind components, accounted for the remaining 98.66%. The mean sea level (MSL) was 70.36cm, while the mean tide level (MTL) was 70.33cm, 3cm lower than MSL. The spring-to-neap ratio was approximately 4.06, with M2, S2, and Sa having the largest amplitudes among the resulting 68 tidal constituents. Higher atmospheric pressure was linked to slightly lower surge heights, and wind speed components showed weak negative correlations, with horizontal wind speed (Wx) at -0.14 and vertical wind speed (Wy) at -0.12, indicating a mild association between higher wind speeds and lower surge levels. The study provides the empirical equation relating surge height to varying atmospheric pressure and wind speed. | ||||
| Keywords | ||||
| Port-Said Harbor; Egypt; Sea level; Meteorological conditions; Tidal analysis; Surge dynamics | ||||
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