A model study of the Angola Benguela frontal zone: sensitivity to atmospheric forcing.
Open accessAbstract
A regional ocean model is applied to the tropical South East Atlantic Ocean in order to investigate the sensitivity of the intensity and position of the Angola Benguela Frontal Zone. The results suggest that the position of the Angola Benguela Frontal Zone is mainly determined by opposing northward and southward flow within 2 degrees off the coast. The windstress curl plays a major role in altering the position of the Angola Benguela Frontal Zone, as it controls the southeastward flow of the South Equatorial Counter Current. The opposing northward flow is mainly the result of geostrophic adjustment to coastal upwelling driven by the meridional windstress. The strength of the frontal zone is found to be related to the strength of the southerly windstress that controls the coastal upwelling.
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Upwelling in the Benguela region is driven by southerly winds associated with the Benguela low-level coastal jet, with oceanic currents and the location of the Angola-Benguela frontal zone sensitive to the jet's wind-stress curl.
“Upwelling is driven by southerly winds associated with the Benguela low-level coastal jet, with oceanic currents and the location of the Angola-Benguela frontal zone sensitive to the jet's wind-stress curl (Colberg and Reason, 2006;Fennel et al., 2012).”
From The tropical atlantic observing system (2019) · cites this paper as Colberg and Reason, 2006
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The tropical atlantic observing system
Foltz, G. R., Brandt, P., Richter, I., Rodríguez-Fonseca, B., Hernandez, F., Dengler, M., Rodrigues, R. R., Schmidt, J. O., Yu, L., Lefevre, N., et al. (2019) · Frontiers in Marine Science · doi:10.3389/fmars.2019.00206 · Cited by 150 · see citing works
Propagation and origin of warm anomalies in the Angola Benguela upwelling system in 2001.
Rouault, M., Illig, S., Bartholomae, C., Reason, C. J. C., & Bentamy, A. (2007) · Journal of Marine Systems · doi:10.1016/j.jmarsys.2006.11.010 · Cited by 123 · see citing works
Self-citation
- Authors
- Colberg, F., & Reason, C. J. C.
- Affiliations
- University of Cape Town (ZA)
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2006-10
- Volume
- 33
- Issue
- 19
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2004606829
- Cited by
- 40
- References
- 0
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2019: 5 · 2018: 3 · 2017: 1 · 2016: 4 · 2015: 4 · 2014: 1 · 2013: 3 · 2012: 1
- FWCI
- 1.41
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Geophysical Research Letters (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Ocean Waves and Remote Sensing
- Keywords
- wind stress curl, coastal upwelling, geostrophic adjustment, atmospheric forcing
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