Cited by 165Oceanographic and Atmospheric ProcessesMarine and coastal ecosystemsMeteorological Phenomena and Simulations

Seasonal overturning circulation in the Red Sea: 1. Model validation and summer circulation

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Yao, Fengchao, Hoteit, Ibrahim, Pratt, Larry J., Bower, Amy S., Zhai, Ping, Köhl, Armin, Gopalakrishnan, Ganesh·2014·Journal of Geophysical Research: Oceans

Abstract

The overturning circulation in the Red Sea exhibits a distinct seasonally reversing pattern and is studied using high-resolution MIT general circulation model simulations. In the first part of this study, the vertical and horizontal structure of the summer overturning circulation and its dynamical mechanisms are presented from the model results. The seasonal water exchange in the Strait of Bab el Mandeb is successfully simulated, and the structures of the intruding subsurface Gulf of Aden intermediate water are in good agreement with summer observations in 2011. The model results suggest that the summer overturning circulation is driven by the combined effect of the shoaling of the thermocline in the Gulf of Aden resulting from remote winds in the Arabian Sea and an upward surface slope from the Red Sea to the Gulf of Aden set up by local surface winds in the Red Sea. In addition, during late summer two processes associated, respectively, with latitudinally differential heating and increased salinity in the southern Red Sea act together to cause the reversal of the contrast of the vertical density structure and the cessation of the summer overturning circulation. Dynamically, the subsurface northward pressure gradient force is mainly balanced by vertical viscosity resulting from the vertical shear and boundary friction in the Strait of Bab el Mandeb. Unlike some previous studies, the three-layer summer exchange flows in the Strait of Bab el Mandeb do not appear to be hydraulically controlled.

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Crossref · 10.1002/2013jc009004

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  • The upwelling of intermediate and deep water takes place in a narrow band along the Egyptian coast, restricted to the northmost Red Sea (north of 24°N), and coincides with the location of the missing NMHC source.

    “The upwelling of the intermediate and deep water takes place in the narrow band along the Egyptian coast. Spatially, the upwelling is restricted to the northmost Red Sea (north of 24°N) and coincides with the location of the missing NMHC source.”

    From The Red Sea Deep Water is a potent source of atmospheric ethane and propane (2020) · cites this paper as [41]

    Section 3.5 (page unavailable) places the upwelling along the eastern coast of the southern Red Sea, contrary to the claimed narrow band along the Egyptian coast north of 24°N. The passages do not link upwelling to an NMHC source. (LLM, conf=0.87)

    Checked by a reasoning model — may be wrong.

    Experimental — accuracy not yet measured
  • The transfer from deep water to the surface can be relatively rapid due to the exceptionally effective vertical mixing of the Red Sea deep water and the outflows from the Gulfs of Suez and Aqaba.

    “The transfer from deep water to the surface can be relatively rapid due to the exceptionally effective vertical mixing of the Red Sea deep water and the outflows from the Gulfs of Suez and Aqaba that have been considered to be important for the RSDW renewal in the period 1982–200132,41,42.”

    From The Red Sea Deep Water is a potent source of atmospheric ethane and propane (2020) · cites this paper as [41]

    The Introduction (page not available) discusses a deep overturning cell linked to Gulf of Suez overflows and observations indicating that the Gulf of Aqaba supplies the densest northern Red Sea water. It does not say that exceptionally effective mixing rapidly transfers deep water to the surface. Its discussion of vertical mixing in §4.1 concerns exchange flow in the strait, not that proposed deep-to-surface transfer. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • The complex overturning circulation in the Red Sea has a pronounced seasonal cycle that modulates the vertical transport and can potentially amplify the emissions to the atmosphere during winter.

    “The complex overturning circulation in the Red Sea has a pronounced seasonal cycle41,43 that modulates the vertical transport and can potentially amplify the emissions to the atmosphere during winter.”

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Cites

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3 of the 45 references couldn’t be matched to a known paper.

Research works printed but not linked: 5

  1. Boyer, T. P., C. Stephens, J. I. Antonov, M. E. Conkright, R. A. Locarnini, T. D. O'Brien, and H. E. Garcia (2002), World Ocean Atlas 2001, Vol. 2: Salinity, edited by S. Levitus, NOAA Atlas NESDIS 50, 165 pp., U.S. Gov. Print. Off., Washington, D. C.
  2. Finnigan, T. D., K. B. Winters, and G. N. Ivey (2001), Response characteristics of a buoyancy-driven sea, J. Phys. Oceanogr., 31(9), 2721-2736.
  3. Smeed, D. A. (2000), Hydraulic control of three-layer exchange flows: Application to the Bab al Mandab, J. Phys. Oceanogr., 30(10), 2574-2588.
  4. Sofianos, S. S., and W. E. Johns (2003), An oceanic general circulation model (OGCM) investigation of the Red Sea circulation: 2. Three- dimensional circulation in the Red Sea, J. Geophys. Res., 108(C3), 3066, doi:10.1029/2001JC001185. · DOI
  5. Stephens, C., J. I. Antonov, T. P. Boyer, M. E. Conkright, R. A. Locarnini, T. D. O'Brien, and H. E. Garcia (2002), World Ocean Atlas 2001, Vol. 1: Temperature, edited by S. Levitus, NOAA Atlas NESDIS 49, 167 pp., U.S. Gov. Print. Off., Washington, D. C.

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Authors
Yao, F., Hoteit, I., Pratt, L. J., Bower, A. S., Zhai, P., Köhl, A., & Gopalakrishnan, G.
Affiliations
  • King Abdullah University of Science and Technology (SA)
  • Woods Hole Oceanographic Institution (US)
  • Universität Hamburg (DE)
  • Scripps Institution of Oceanography (US)
Corresponding author
Hoteit, Ibrahim
Venue
Journal of Geophysical Research: Oceans
Published
2014-04
Volume
119
Issue
4
Pages
2238-2262
ISSN
2169-9275 (ISSN-L)
OpenAlex
W2006688772
Cited by
165
References
45
Citations by year
2026: 13 · 2025: 24 · 2024: 16 · 2023: 7 · 2022: 12 · 2021: 14 · 2020: 13 · 2019: 16 · 2018: 14 · 2017: 13 · 2016: 6 · 2015: 12 · 2014: 5
FWCI
8.63
Type
journal article
Language
en
Open access
Locations
  • Journal of Geophysical Research Oceans (publishedVersion)
  • Open Access Server of the Woods Hole Scientific Community (Woods Hole Scientific Community) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) (submittedVersion)
Funders
  • King Abdullah University of Science and Technology
  • Saudi Aramco
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
Keywords
Red Sea, summer circulation, thermocline shoaling, surface slope, differential heating, salinity, density structure, pressure gradient force, vertical viscosity, exchange flow, hydraulics, model validation

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