This work was supported by NASA Grants NAG5-13564 and NAG5-9657. SSM/I, TMI, and QuikSCAT datasets are produced by Remote Sensing Systems and sponsored by the NASA Earth Science REASoN DISCOVER Project and NASA Ocean Vector Winds Science Team, respectively. These data are available (at www.remss.com) from Remote Sensing Systems. The ERA-40 data were obtained from the DSS at NCAR. The NCEP–NCAR reananalysis was obtained from the CDC Web site (http://www.cdc.noaa.gov). Dr. Sandra Yuter kindly provided us with echo area fraction time series for the KWAJEX low-PRF radar scans. Discussions with Dave Raymond and Adam Sobel were helpful to the authors in preparing this work. Comments by two anonymous reviewers were also helpful.
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