Eutrophication models to simulate changes in the water quality of Green Lake, Wisconsin in response to changes in phosphorus loading, with supporting water-quality data for the lake, its tributaries, and atmospheric deposition

In this data release, we provide data to describe the water quality in Green Lake, Wisconsin, from 1905 to 2020, primarily the constituents for which it is impaired, including near-surface total phosphorus concentrations and metalimnetic dissolved oxygen concentrations, and quantify the water and phosphorus inputs to the lake. We also provide inputs to and outputs from the General Lake Model coupled to the Aquatic Ecodynamics modeling library (GLM-AED) hydrodynamic water-quality model to describe the factors that have caused low dissolved oxygen concentrations in the metalimnion of Green Lake; and quantify how changes in phosphorus loading should affect near-surface total phosphorus and chlorophyll-a concentrations, water clarity, and the minimum dissolved oxygen concentrations in the metalimnion the lake. This data release includes 5 child items: (1) Lake, stream, meteorology, and atmospheric deposition data, which contains morphology, meteorology, atmospheric deposition, water quality data and mass balance data for the lake; (2) GLM calibration inputs and outputs, which contains inputs to and outputs from the GLM model for which physical parameters in the model were calibrated; (3) GLM-AED calibration inputs and outputs, which contains which contains inputs to and outputs from the GLM-AED model for which physical, chemical, and biological parameters in the model were calibrated; (4) GLM-AED determining causes of metalimnetic dissolved oxygen minima, which contains all of the data needed to run the model to determine the causes of metalimnetic oxygen minima (MOM), and the outputs from the model; and (5) GLM-AED response to changes in phosphorus loading, which contains all of the data needed to run the model to determine how dissolved oxygen, near surface total phosphorus, and near-surface chlorophyll-a concentrations respond to changes in phosphorus loading from the watershed, and the outputs from the model.