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Tracking Tropical Cyclones in the Northwest Pacific During El Nino

Andy Chan Environmental and Water Resources Engineering University of Texas at Austin. Tracking Tropical Cyclones in the Northwest Pacific During El Nino. webspace.utexas.edu/zimmeau/www/gis. EAST ASIA. North Korea. South Korea. Japan. China. Taiwan. Macau. The Philippines. Vietnam.

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Tracking Tropical Cyclones in the Northwest Pacific During El Nino

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  1. Andy Chan Environmental and Water Resources EngineeringUniversity of Texas at Austin Tracking Tropical Cyclones in the Northwest Pacific During El Nino webspace.utexas.edu/zimmeau/www/gis

  2. EAST ASIA North Korea South Korea Japan China Taiwan Macau The Philippines Vietnam

  3. Data Source • Joint Typhoon Warning Center http://metocph.nmci.navy.mil/jtwc/best_tracks/wpindex.html • NOAA National Weather Service Climate Prediction Center http://www.cpc.noaa.gov/products/analysis_monitoring/ensostuff/ensoyears.shtml

  4. Dr. Johnny Chan’s Observation Tropical cyclone activity over the western North Pacific associated with El Nino and La Nina events. J. Climate, 13, 2960-2972

  5. Determining El Nino, La Nina, and Neutral Years

  6. Raw Data

  7. Convert Points to Polygon http://www.xtoolspro.com/tools.html

  8. POINTS AND POLYLINE

  9. THE GRID

  10. Neutral Years

  11. El Nino Years

  12. La Nina Years

  13. Difference between El Nino and Neutral Years

  14. Difference between La Nina and Neutral Years

  15. Conclusion Matched with the observations in Dr. Chan’s paper.

  16. Thank you. Questions?

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