Ocean Currents
- Currents are caused by wind, gravity and density.This is important because by these moves , water of the whole world can travel and moderate the weather.
- Eddy currents are tiny and rotates in .
- The upper layers of the sea are called Surface Circulation.
- Deep Circulation is caused by density.
- Gyre are the currents that goes in circles, besides there are 5 big ones in whole world.
- One is located at the Indian Ocean , this is made up of wind and gravity by the Coriolis effect and sea topography.
- When water is cold its molecules are more close together, however when water is frozen its molecules spread out from each one.
- Thermal expansion causes the sea to expand.
- Earth rotates faster in the equator than in the poles.
- El nino was caused by a giant current.
- Temporary currents just happened in some seasons.
- Rip currents are strong channels of water flowing seaward from near the shore.