Articles | Volume 12, issue 2
Ocean Sci., 12, 495–506, 2016
https://doi.org/10.5194/os-12-495-2016
Ocean Sci., 12, 495–506, 2016
https://doi.org/10.5194/os-12-495-2016

Research article 05 Apr 2016

Research article | 05 Apr 2016

Wind changes above warm Agulhas Current eddies

M. Rouault et al.

Cited articles

Bourras, D., Reverdin, G., Giordani, H., and Caniaux, G.: Response of the atmospheric boundary layer to a mesoscale oceanic eddy in the northeast Atlantic, J. Geophys. Res., 109, D18114, https://doi.org/10.1029/2004JD004799, 2004.
Byrne, D. A., Gordon, A. L., and Haxby, W. F.: Agulhas Eddies: a synoptic view using Geosat ERM data, J. Phys. Oceanogr., 25, 902–917, 1995.
Byrne, D., Papritz, L., Frenger, I. , Muennich, M., and Gruber, N.: Atmospheric Response to Mesoscale Sea Surface Temperature Anomalies: Assessment of Mechanisms and Coupling Strength in a High-Resolution Coupled Model over the South Atlantic, J. Atmos. Sci., 72, 1872–1890, https://doi.org/10.1175/JAS-D-14-0195.1, 2015.
Chelton, D. B. and Wentz, F. J.: Global high-resolution satellite observations of sea-surface temperature for numerical weather prediction and climate research, B. Am. Meteorol. Soc. 86, 1097–1115, 2005.
Chelton, D. B., Wentz, F. J., Gentemann, C. L., de Szoeke, R. A., and Schlax, M. G.: Satellite microwave SST observations of transequatorial tropical instability waves, Geophys. Res. Lett., 27, 1239–1242, 2000.
Download
Short summary
Our study shows that wind increases of 4 to 8 m s−1 above warm Agulhas Current eddies are not uncommon. This should be taken seriously when sailing in the “Roaring Forties”. Using microwave remote sensing from satellite is a very useful tool for monitoring such eddies. This could be displayed operationally to provide vessels with early warning and to indicate where there are likely to sustain stronger wind. The result is also relevant for the Gulf Stream and the Kuroshio Current.