1NOAA Great Lakes Environmental Research Laboratory, Ann Arbor, MI, 48105
2Cooperative Institute for Limnology and Ecosystem Research
3University of Michigan Atmospheric, Oceanic and Space Sciences, Ann Arbor, MI, 48109
4Battelle Northwest, Seattle, Washington
5Center for Great Lakes Studies, University of Wisconsin-Milwaukee
American Geophysical Union, San Diego, CA, Feb, 1997