This research was supported by the Visiting Scientist Program at the National Oceanic and Atmospheric Administration’s Geophysical Fluid Dynamics Laboratory (NOAA/GFDL), administered by the University Corporation for Atmospheric Research (UCAR). Analysis and graphics were done using the freeware package Ferret (information available online at http://ferret.pmel.noaa.gov/). We acknowledge the TAO project office for making the TAO and PIRATA buoy data easily and readily available; we are grateful to Drs. Yukio Masumoto and Yoshi Kuroda for kindly making the high-frequency Indian Ocean TRITON data available. Helpful comments and suggestions were received from the CLIVAR Indian Ocean Panel, Ed Harrison, Scott Song, Tony Rosati, Andrew Wittenberg, Bob Hallberg, Brian Arbic, and Sebastian Ilcane. We acknowledge the careful reading by and useful suggestions from the three anonymous reviewers.
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