We are grateful to the following principal investigators (PI) and their respective groups and co-PIs for acquiring and providing the data used in this study: R. Beardsley, the fall and winter CODE measurements; C. Winant and J. Largier (SIO), the NCCCS measurements; B. Butman (USGS) and S. Williams (WHOI), the STRESS-1 and STRESS-2 measurements;and R. Beardsley (with S. Lentz), the SMILE observations. Comments and suggestions by K. Brink and D. Chapman are appreciated. The manuscript also benefited from suggestions by two anonymous reviewers. S. Lentz was supported by the Office of Naval Research (ONR, N00014-97-1-0161) and J. Trowbridge was supported by National Science Foundation (OCE-9810609) and ONR (N00014-95-0373).
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