PUBLICATIONS Journal of Geophysical Research: Oceans RESEARCH ARTICLE 10.1002/2015JC011168 Key Points: Remote equatorial forcing explains 89% of the coastal interannual variability Coastal trapped waves propagate up to the Benguela Upwelling System (248S) Coastal temperature changes are maximum in the subsurface and result from advection processes
Correspondence to: M.-L. Bache`lery,
[email protected]
Citation: Bache`lery, M.-L., S. Illig, and I. Dadou (2015), Interannual variability in the South-East Atlantic Ocean, focusing on the Benguela Upwelling System: Remote versus local forcing, J. Geophys. Res. Oceans, 120, doi:10.1002/ 2015JC011168. Received 24 JUL 2015 Accepted 10 DEC 2015 Accepted article online 15 DEC 2015
Interannual variability in the South-East Atlantic Ocean, focusing on the Benguela Upwelling System: Remote versus local forcing Marie-Lou Bache`lery1, Serena Illig1,2, and Isabelle Dadou1 1
Laboratoire d’Etudes en G eophysique et Oc eanographie Spatiales; OMP/LEGOS, Toulouse, France, 2Department of Oceanography, MARE Institute, University of Cape Town, South Africa
Abstract We investigate the respective roles of equatorial remote (Equatorial Kelvin Waves) and local atmospheric (wind, heat fluxes) forcing on coastal variability in the South-East Atlantic Ocean extending up to the Benguela Upwelling System (BUS) over the 2000–2008 period. We carried out a set of six numerical experiments based on a regional ocean model, that differ only by the prescribed forcing (climatological or total) at surface and lateral boundaries. Results show that at subseasonal timescales (
