Thanks to Murry Salby, Peter Webster, Klaus Weickmann, Rolando Garcia, Gilbert Compo, Christopher Torrence, Jeff Hicke, Adrian Matthews, Brian Mapes, Jeff Forbes, and Andrew Moore for helpful discussions throughout the course of this work. We also thank Murry Salby, Richard Lindzen, Yoshikazu Hayashi, Ralph Milliff, and two anonymous reviewers for their detailed comments on the first draft of this paper. The original twice-daily OLR data was obtained from Brant Liebmann and Cathy Smith at the NOAA Climate Diagnostics Center (CDC). The MSU and NCEP/NCAR 40-Year Reanalysis data were also obtained from CDC through their data archives (http://www.cdc.noaa.gov). This research was supported by the TOGA COARE program, funded jointly by NOAA’s Office of Global Programs and the National Science Foundation, under project Grant ATM 95-25860. Matthew Wheeler was also supported by a Cooperative Institute for Research in the Environmental Sciences (CIRES) Graduate Research Fellowship at the University of Colorado.
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