Tropical climates with rainy summers and dry winters.
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- December 5th, 2014, 4:50 pm
- Forum: 2015 Question Marathons
- Topic: Meteorology B
- Replies: 74
- Views: 12969
It's driven by differences in density due to different water temperatures and salinities in ocean water, forming a large global "conveyor belt." It goes to the equator because the density is higher at the poles and salinity is slightly lower at the equator than its surroundings.