Wind patterns must have included strong polar easterlies at high northern latitudes, prevailing westerlies at midlatitudes, and northeast trade winds in the tropics. (britannica.com)
Consequently, the water vapour in air over Greenland predominantly is picked up from polar easterlies as they travel south. (skepticalscience.com)
There are three large average surface wind patterns few know about: the tropical easterlies (tradewinds), the midlatitude westerlies and the polar easterlies, but variability results in significant weather changes. (drtimball.com)