Physical, chemical, and biological water quality observation data at multiple levels from an array of fixed moorings to support hypoxia research in the central basin of Lake Erie, Great Lakes region collected by National Oceanic and Atmospheric Administration, Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research, University of Michigan since 2017

Episodes of low dissolved oxygen are common during the summer in the bottom water of the central basin of Lake Erie. Dissolved oxygen and temperature observations at a high temporal frequency and a broad spatial extent provide the supporting data for the development of experimental hypoxia hindcast and forecast models and aid our understanding of the development and extent of hypoxia. Underwater sensor moorings were deployed across the central basin of Lake Erie to monitor oxygen conditions by the National Oceanic and Atmospheric Administration Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research (CIGLR), University of Michigan. Moorings were deployed during the summer season beginning in 2017 to collect in situ data for the following parameters, water temperature, dissolved oxygen, water current speed and direction, specific conductivity, pH, turbidity, oxidation-reduction potential (ORP), chlorophyll, phycocyanin, dissolved organic matter, and phosphorus at hourly or sub-hourly time intervals.This research was funded by the National Oceanic and Atmospheric Administration's National Centers for Coastal Ocean Science Competitive Research Program under award NA16NOS4780209 to the University of Michigan and NOAA Great Lakes Environmental Research Laboratory to support the project “Operational Lake Erie Hypoxia Forecasting for Public Water Systems Decision Support.” The 2019 phosphorus observations were supported by the Cooperative Science and Monitoring Initiative (CSMI).