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
Atlantic Europe still is a cultural continuum in Atlantic Europe, forming a cultural unit which has its roots in prehistoric times but remained until today mostly thanks to sea trade. Geographers also mention the influence of the natural environment in the construction of a similar cultural landscape along the western European coasts. Some of the first geographers to consider this idea of Atlantic Europe were Otero Pedrayo and Orlando Ribeiro. Pedrayo stated in his studies about Galicia that this territory was marked by a strong "Atlantic character", not Mediterranean, despite the fact of being part of a Mediterranean state (Spain). On the