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ENSO El Nino / La Nina episodes of ocean warming and cooling

ENSO El Nino / La Nina episodes of ocean warming and cooling. NORMAL Conditions. Trade Winds Cool water pools near S.America, Warm water pools near Australia. How are “El Ni ñ o” conditions different than normal?. Ocean currents reverse Warm water pools near S.America

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ENSO El Nino / La Nina episodes of ocean warming and cooling

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  1. ENSOEl Nino / La Ninaepisodes of ocean warming and cooling

  2. NORMAL Conditions • Trade Winds • Cool water pools near S.America, • Warm water pools near Australia

  3. How are “El Niño” conditions different than normal? • Ocean currents reverse • Warm water pools near S.America • Cool water pools near Australia

  4. El Nino Warning System • Sea Surface Temperature • Wind Speed/Direction • Ocean Current Direction

  5. Global Effects of El Nino • Floods/mudslides in S. America • Droughts in Australia/Indonesia (cooler waters create more stable atmos. and less rain) • Termination of the coastal upwelling along S. America (hurts fisheries)

  6. El Nino’s effect on the United States • Jet Stream is moved north

  7. El Nino’s effect on the United States • Warmerwinters in N states • Wet/colderwinters in S states • Weakhurricane system

  8. “LA NINA” • Think of La Nina as a strengthened version of “Normal” • Trade Winds are extremely strong • Very cold water pools near S.America, very warm water pools near Australia

  9. Global Effects of La Nina • Heavy rains in the western Pacific • Strong coastal upwellings along S. America • Extreme drought along S. America’s Pacific coastline.

  10. La Nina’s effect on the U.S. • Colder than normal winters • Increased snowfall • Midwest gets more precip. than normal

  11. Comparison of surface temps El Nino Normal La Nina

  12. El Nino

  13. Normal Conditions

  14. La Nina

  15. El Nino or La Nina?

  16. NORMAL, EL NINO, OR LA NINA? Normal (Nov 2001)

  17. Helpful Websites • TAO ~ Tropical Atmosphere Ocean project http://www.pmel.noaa.gov/tao/index.shtml • The TAO Story http://www.pmel.noaa.gov/tao/proj_over/flash/mainDOC.html

  18. EL NINOSOUTHERN OSCILLATION

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