Ocean current hemisphere due to imposed wind stresses. In these wind-driven currents, the Ekman spiral effect results in the currents flowing at an angle to the driving winds. In addition, the areas of surface ocean currents move somewhat with the seasons; this is most notable in equatorial currents. Deep ocean basins generally have a non-symmetric surface current, in that the eastern equatorward-flowing branch is broad and diffuse whereas the western poleward flowing branch is very narrow. These western boundary currents (of which the Gulf Stream is an example) are a consequence of the rotation of the Earth. Deep ocean currents are driven
Western Cape along the southern slopes of the Outeniqua mountain range. Typical species are hardwoods of exceptional height, such as Yellowwood, Stinkwood and Ironwood trees. The Western Cape is also climatologically diverse, with many distinct micro- and macroclimates created by the varied topography and the influence of the surrounding ocean currents. These are the warm Agulhas Current which flows southwards along South Africa's east coast, and the cold Benguela Current which is an upwelling current from the depths of the South Atlantic Ocean along South Africa's west coast. Thus climatic statistics can vary greatly over short distances. Most of the province is