| A | B |
|---|
| coastal upwelling | upwelling adjacent to coast, induced by wind |
| countercurrent | surface current flowing in opposite direction from adjacent surface current |
| current | mass flow of water |
| eddy | circular movement of water |
| El Nino | southward-flowing nutrient-poor current of warm water off the coast of South America |
| ENSO | El Nino and the Southern Oscillation |
| Gulf Stream | largest western boundary current |
| gyre | circuit of mid-latitude currents around periphery of ocean basin |
| La Nina | when normal tropical Pacific circulation strengths and surface temperatures drop |
| surface current | water flowing horizontally in upper waters of ocean surface |
| undercurrent | current flowing beneath a surfact current, in opposite direction |
| upwelling | circulation pattern w/ deep cold nutrient-laden water moves towards surface |
