USGS Shingobee Lake (MN) Secchi Depth dataset 1989-2010

The Interdisciplinary Research Initiative (IRI) provides the opportunity for fundamental interdisciplinary research of interactions within the hydrologic system on a watershed scale, to increase the basic understanding of watershed hydrology, and to provide information necessary for better management of our Nation's water resources. Management of water resources often is dependent on understanding the effects of residence time on ecosystem processes. The focus of the Minnesota IRI is on aquatic systems that have greatly different water and, presumably, chemical residence times. Research on the hydrology, geochemistry, and limnology of the Williams Lake watershed began in 1978, and reports describing the hydrologic setting, limnology, and geochemistry of the site are available on request. Study of the interaction of the lake with ground water, evaporation, and biogeochemistry has continued to the present (1993). Study of the Shingobee Lake site began in 1989 at the inception of the IRI effort.