Desert formation
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- Cold ocean currents have a direct effect on desert formation in west coast regions of the tropical and subtropical continents.
- There is fog and most of the areas are arid due to desiccating effect (loss of moisture).
Rains
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- Warm ocean currents bring rain to coastal areas and even interiors. Example: Summer Rainfall in British Type climate.
- Warm currents flow parallel to the east coasts of the continents in tropical and subtropical latitudes. This results in warm and rainy climates. These areas lie in the western margins of the subtropical anti-cyclones.
Moderating effect
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- They are responsible for moderate temperatures at coasts. [North Atlantic Drift brings warmness to England. Canary cold current brings cooling effect to Spain, Portugal etc.]
Drizzle
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- Mixing of cold and warm ocean currents create foggy weather where precipitation occurs in the form of drizzle [Newfoundland].
Climate
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- Warm and rainy climates in tropical and subtropical latitudes [Florida, Natal etc.],
- Cold and dry climates on the western margins in the sub-tropics due to desiccating effect,
- Foggy weather and drizzle in the mixing zones,
- Moderate clime along the western costs in the sub-tropics.
Tropical cyclones
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- They pile up warm waters in tropics and this warm water is the major force behind tropical cyclones.
