Articles | Volume 11, issue 3
Ocean Sci., 11, 483–502, 2015
https://doi.org/10.5194/os-11-483-2015
Ocean Sci., 11, 483–502, 2015
https://doi.org/10.5194/os-11-483-2015

Research article 30 Jun 2015

Research article | 30 Jun 2015

Decadal variability and trends of the Benguela upwelling system as simulated in a high-resolution ocean simulation

N. Tim et al.

Related authors

Analysis of the position and strength of westerlies and trades with implications for Agulhas leakage and South Benguela upwelling
Nele Tim, Eduardo Zorita, Kay-Christian Emeis, Franziska U. Schwarzkopf, Arne Biastoch, and Birgit Hünicke
Earth Syst. Dynam., 10, 847–858, https://doi.org/10.5194/esd-10-847-2019,https://doi.org/10.5194/esd-10-847-2019, 2019
Short summary
The importance of external climate forcing for the variability and trends of coastal upwelling in past and future climate
Nele Tim, Eduardo Zorita, Birgit Hünicke, Xing Yi, and Kay-Christian Emeis
Ocean Sci., 12, 807–823, https://doi.org/10.5194/os-12-807-2016,https://doi.org/10.5194/os-12-807-2016, 2016
Short summary
The relationship between Arabian Sea upwelling and Indian monsoon revisited
X. Yi, B. Hünicke, N. Tim, and E. Zorita
Ocean Sci. Discuss., https://doi.org/10.5194/osd-12-2683-2015,https://doi.org/10.5194/osd-12-2683-2015, 2015
Revised manuscript not accepted
Short summary

Cited articles

Bakun, A.: Global climate change and intensification of coastal ocean upwelling, Science, 247, 198–201, https://doi.org/10.1126/science.247.4939.198, 1990.
Bakun, A. and Nelson, C. S.: The seasonal cycle of wind-stress curl in subtropical eastern boundary current regions, J. Phys. Oceanogr., 21, 1815–1834, https://doi.org/10.1175/1520-0485(1991)021<1815:TSCOWS>2.0.CO;2, 1991.
Bakun, A. and Weeks, S. J.: Greenhouse gas builtup, sardines, submarine eruptions and the possibility of abrupt degradation of intense marine upwelling ecosystems, Ecol. Lett., 7, 1015–1023, https://doi.org/10.1111/j.1461-0248.2004.00665.x, 2004.
Bakun, A., Field, D. B., Redondo-Rodriguez, A., and Weeks, S. J.: Greenhouse gas, upwelling-favorable winds, and the future of coastal ocean upwelling ecosystems, Glob. Change Biol., 16, 1213–1228, https://doi.org/10.1111/j.1365-2486.2009.02094.x, 2010.
Belmadani, A., Echevin, V., Codron, F., Takahashi, K., and Junquas, C.: What dynamics drive future wind scenarios for coastal upwelling off Peru and Chile?, Clim. Dynam., 43, 1893–1914, https://doi.org/10.1007/s00382-013-2015-2, 2014.
Download
Short summary
The atmospheric drivers of the Benguela upwelling systems and its variability are statistically analysed with an ocean-only simulation over the last decades. Atmospheric upwelling-favourable conditions are southerly wind/wind stress, a strong subtropical anticyclone, and an ocean-land sea level pressure gradient as well as a negative ENSO and a positive AAO phase. No long-term trends of upwelling and of ocean-minus-land air pressure gradients, as supposed by Bakun, can be seen in our analysis.