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When El Nino occurs the trade winds tend to weaken. Also water from the western Pacific moves to the Eastern Pacific.
Trade winds.
It decreases trade winds
When increased pressure causes trade wind to lessen, El Nino is formed. El Nino is caused by high air pressure in the South Pacific that causes trade winds to die out. This causes the waters to warm up, which causes more rain in Latin America.
The answer that best describes this is.... the sea surface temperatures become warmer than normal; and Pacific trade winds are from the west!
When El Nino occurs the trade winds tend to weaken. Also water from the western Pacific moves to the Eastern Pacific.
Trade winds.
It decreases trade winds
When increased pressure causes trade wind to lessen, El Nino is formed. El Nino is caused by high air pressure in the South Pacific that causes trade winds to die out. This causes the waters to warm up, which causes more rain in Latin America.
When increased pressure causes trade wind to lessen, El Nino is formed. El Nino is caused by high air pressure in the South Pacific that causes trade winds to die out. This causes the waters to warm up, which causes more rain in Latin America.
The answer that best describes this is.... the sea surface temperatures become warmer than normal; and Pacific trade winds are from the west!
causing heavy rain, heavy storms, and high tides along the west coast of north and south america
Along the coast of Peru, El Nino generally brings wet weather during December-February and above-normal temperatures throughout the year (as long as the El Nino exists).In Australia, El Nino means dry, and drought is not uncommon during these episodes, particularly in northern and eastern areas. El Nino has less effect on the southwestern quarter of the continent. In addition, El Nino summers (December-February) tend to be hotter than normal in Tasmania and nearby southeastern Australia.
The pressure gradient decreases. drought conditions in Australia
la Nina
warm water flows from western pacific toward south America
El Nino reduces upwelling. Normal sea surface temperatures in Pacific tend to be warmer in the west because of upwelling, where warm water flows west because of trade winds and colder water rises up to replace the warm water in the Eastern Pacific. During El Nino, the trade winds get all screwed up and warm water is spread out more evenly in the Pacific. So there is less upwelling and the Eastern Pacific sees warmer sea water.