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 transcript:

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

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

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

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

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

Raw Data

Convert Points to Polygon

POINTS AND POLYLINE

THE GRID

Neutral Years

El Nino Years

La Nina Years

Difference between El Nino and Neutral Years

Difference between La Nina and Neutral Years

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.

Thank you. Questions?

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