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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.

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Presentation on theme: "Tracking Tropical Cyclones in the Northwest Pacific During El Nino Andy Chan Environmental and Water Resources Engineering University of Texas at Austin."— Presentation transcript:

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

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

3 Data Source Joint Typhoon Warning Center NOAA National Weather Service Climate Prediction Center nsoyears.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,

5 Determining El Nino, La Nina, and Neutral Years YearDecJanFebMarAprMayJunJulAugSepOctNovENL L N N E N E L N E L L L N E E

6 Raw Data

7 Convert Points to Polygon

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 El NinoLa Nina South China Sea Below Normal Above Normal East Asia (Japan) Above Normal Below Normal Matched with the observations in Dr. Chan’s paper.

16 Thank you. Questions?


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