The Great Lakes Environmental Research Laboratory (GLERL) is a laboratory in the National Oceanic and Atmospheric Administration (NOAA) Office of Oceanic and Atmospheric Research (OAR). It is headquartered in Ann Arbor, Michigan, with a subsidiary field station in Muskegon, Michigan. GLERL is a multidisciplinary environmental research laboratory that provides scientific understanding to inform the use and management of Great Lakes and coastal marine environments. It is one of seven NOAA Research Laboratories (RLs). Source: Wikipedia (en)