Southern Lake Michigan chemical and physical characteristics data for 1975

Water samples at standard depths, bottom sediment, and meteorological data were collected at established stations in Southern Lake Michigan, in six harbors, and at one near shore site during the 1975 open-water season. There were 5 lake cruises and 9 to 11 one-day cruises at each harbor. The sampling programs and analytical methods are described. Chemical characteristics of the water and of the bottom sediment samples during one cruise are listed by cruise for each station and sampling depth. Wind, wave, and sediment data are listed by cruise for each station. The statistical summaries showing lake-wide means, standard deviations, and sample sizes of selected variables are presented by depth for each lake cruise period. These means to not include the harbor area.