- Ocean Currents emerge as a result of large scale movement of ocean water.
- Types of Ocean Currents:
- Warm Currents
- Flow from equator toward poles.
- Example- Gulf Stream
- Cold Currents
- Flow from poles towards equator
- Example- Labrador Current
- Causes of Ocean Currents:
- Planetary winds
- Earth's rotation (Corialis effect)
- Differences in temperature & salinity
- Important Ocean Currents:
- Gulf Stream
- Labrador Current
- Kuroshio Current
- Oyashio Current
- Canary Current
- Brazil Current
- Benguela Current
- Agulhas Current
- West Australian Current
- North Equatorial Current
- South Equatorial Current
- Peru (Humboldt Current)
- California Current
- East Australian Current
El Nino and La Nina
- El Nino:
- Warm Pacific waters shift eastward.
- Causes droughts, floods globally.
- La Nina:
- Cooling of Pacific waters.
- Often brings opposite effects to El Nino.
- Impacts:
- Monsoon patterns.
- Marine ecosystems.
- Global temperatures.
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