General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf

The general characteristics of tidal currents in the entrance of the Khor Abdullah at Iraq marine water, located at the northwest tip of the Arabian Gulf, were studied based on realistic current measurements. The velocity measurements used in this study extended to about one year, which was never pr...

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Main Author: Ali Abdulridha Lafta
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Oceanologia
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0078323423000283
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author Ali Abdulridha Lafta
author_facet Ali Abdulridha Lafta
author_sort Ali Abdulridha Lafta
collection DOAJ
description The general characteristics of tidal currents in the entrance of the Khor Abdullah at Iraq marine water, located at the northwest tip of the Arabian Gulf, were studied based on realistic current measurements. The velocity measurements used in this study extended to about one year, which was never previously available in this vital region of the Arabian Gulf. The results illustrated that this area is characterized by strong currents exceeding 1 m/s during both ebb and flood tides, driven by local water level variations. The maximum currents recorded during the study period were 1.65 and 1.36 m/s at the ebb and flood tides, respectively. Additionally, the monthly averages of ebb currents are higher than those of flood currents. The harmonic analysis results revealed that the tidal effect explained approximately 98% of the variation in water currents, with the remaining percentage due to residual currents. Among the 35 tidal components used in harmonic analysis, the M2 component was the main contributor to tidal currents variation in the area, followed by S2, K1, N2, and O1. The residual current seems to have a low effect on the currents variations in the area, with maximum values not exceeding 0.0677 and 0.058 m/s during the ebb and flood tides, respectively. The results obtained give a general view of the tidal current behavior and could be beneficial for several aspects of marine and coastal engineering as well as shipping and navigation activities in this region.
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spelling doaj.art-c4e856c2995b4d6e8c0132fe333d6b9f2023-06-21T06:50:49ZengElsevierOceanologia0078-32342023-07-01653494502General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian GulfAli Abdulridha Lafta0Corresponding author at: Marine Science Center, University of Basrah, Iraq.; Marine Science Center, University of Basrah, IraqThe general characteristics of tidal currents in the entrance of the Khor Abdullah at Iraq marine water, located at the northwest tip of the Arabian Gulf, were studied based on realistic current measurements. The velocity measurements used in this study extended to about one year, which was never previously available in this vital region of the Arabian Gulf. The results illustrated that this area is characterized by strong currents exceeding 1 m/s during both ebb and flood tides, driven by local water level variations. The maximum currents recorded during the study period were 1.65 and 1.36 m/s at the ebb and flood tides, respectively. Additionally, the monthly averages of ebb currents are higher than those of flood currents. The harmonic analysis results revealed that the tidal effect explained approximately 98% of the variation in water currents, with the remaining percentage due to residual currents. Among the 35 tidal components used in harmonic analysis, the M2 component was the main contributor to tidal currents variation in the area, followed by S2, K1, N2, and O1. The residual current seems to have a low effect on the currents variations in the area, with maximum values not exceeding 0.0677 and 0.058 m/s during the ebb and flood tides, respectively. The results obtained give a general view of the tidal current behavior and could be beneficial for several aspects of marine and coastal engineering as well as shipping and navigation activities in this region.http://www.sciencedirect.com/science/article/pii/S0078323423000283Tidal currentsArabian GulfHarmonic analysisResidual currentsKhor Abdullah
spellingShingle Ali Abdulridha Lafta
General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf
Oceanologia
Tidal currents
Arabian Gulf
Harmonic analysis
Residual currents
Khor Abdullah
title General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf
title_full General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf
title_fullStr General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf
title_full_unstemmed General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf
title_short General characteristics of tidal currents in the entrance of Khor Abdullah, northwest of Arabian Gulf
title_sort general characteristics of tidal currents in the entrance of khor abdullah northwest of arabian gulf
topic Tidal currents
Arabian Gulf
Harmonic analysis
Residual currents
Khor Abdullah
url http://www.sciencedirect.com/science/article/pii/S0078323423000283
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