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Ocean Science An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/os-2018-47
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-2018-47
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 24 Aug 2018

Research article | 24 Aug 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Ocean Science (OS).

Estimation of geostrophic current in the Red Sea based on Sea level anomalies derived from extended satellite altimetry data

Ahmed Mohammed Taqi1,2, Abdullah Mohammed Al-Subhia1, and Mohammed Ali Alsaafani1 Ahmed Mohammed Taqi et al.
  • 1Department of Marine Physics, King Abdulaziz University, Jeddah, Saudi Arabia
  • 2Department of Marine Physics, Hodeihah University, Hodeihah, Yemen

Abstract. The geostrophic currents data near the coast of the Red Sea has a large gap. Due to that the sea level anomaly (SLA) data of Jason-2 has been reprocessed and extended towards the coast of the Red Sea and merged with AVISO data at the center of the Red Sea. The processing has been applied to build a grid data to achieve best results for the SLA and geostrophic current. The results obtained from the new extended data at the coast are more consistent with the observed data hence geostrophic current calculation. The estimated geostrophic current match well with that estimated for observed CTD data. The pattern of SLA distribution and geostrophic currents are divided into two seasons; Winter season extends from October to May and Summer from June to September. The geostrophic currents along the eastern Red Sea flow toward north and southward along the west coast. This flow is modified with the presence of the cyclonic and anticyclonic eddies, which are more concentrated at the central and northern side of the Red Sea. The study has shown anticyclonic eddies (AE) on the eastern side of the Red Sea, while cyclonic eddies (CE) on the west side during Winter. During Summer the (CE) are along the eastern side and (AE) along the western side.

Ahmed Mohammed Taqi et al.
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Ahmed Mohammed Taqi et al.
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Latest update: 15 Nov 2018
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Short summary
This work was achieved good results for sea level and surface geostrophic currents near the coast. This research was carried out because of gaps in the sea level data and surface geostrophic currents data near the Red Sea coast.
This work was achieved good results for sea level and surface geostrophic currents near the...
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