El Niño and La Nina conditions help meteorologists make seasonal forecasts for t

Question

El Niño and La Nina conditions help meteorologists make seasonal forecasts for the Southeastern Unites States - thousands of miles away. Discuss the atmospheric mechanisms which permits such extrapolations. You can review the information contained in the websites listed below.

Read and comment on at least two of your peers' answers.

Websites:

http://www.cpc.ncep.noaa.gov/products/outreach/basic.shtml (Links to an external site.)

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ensostuff/ensofaq.shtml (Links to an external site.)

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/impacts/warm_impacts.shtml (Links to an external site.) (El Nino impacts)

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/lanina/cold_impacts.shtml (Links to an external site.) (La Nina impacts)

Explanation / Answer

El nino is climate pattern that describes the unusual warming of surface water in the eastern tropical Pacific ocean

Last El nino occurred 2006 second warmest record for the US

Forecast

Observe the SST over the global ocean. To predict the abnormal temperature variations

Continously monitor the trade wind direction. It affect the ocean temperature. It leads to LA NINO

Monitor rainfall which is source for fresh water. It decrease salinity. It affect the ocean nutrition cycle

Predict from the past El nino time intervals

Monitor the ocean color to find the variation.

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