The authors express their thanks to M. J. McCormick, J. H. Saylor, K. M. Stewart, C.N.K. Mooers, and anonymous reviewers for their suggestions. The Richardson number turbulence parameterization subroutine for the DIECAST model was provided by P. J. Martin of the Naval Research Laboratory. The research was partially supported by the NOAA Coastal Ocean Program and the USEPA Lake Michigan Mass Balance Program. One author (DB) was supported by a fellowship from the Central European University, Budapest, Hungary.
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