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Filters: partyWithName: U.S. Geological Survey - ScienceBase (X) > partyWithName: James L Kennedy (X)

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Interannual differences in the water quality of Anvil Lake, WI, were examined to determine how water level and climate affect the hydrodynamics and trophic state of shallow lakes, and their importance compared to anthropogenic changes in the watershed. To determine how changes in water level may affect these processes, the General Lake Model (GLM) was used to simulate how the lake’s thermal structure should change in response to changes in water level using R. This dataset includes the data inputs to the GLM model and the direct outputs from the model. Model Calibration (GLM_CalibrationZ); Simulation of with Deep Lake and Cold Weather (GLM_Deep_Cold_SimulationZ); Simulation of with Deep Lake and Hot Weather (GLM_Deep_Hot_SimulationZ);...
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Three eutrophication models (mass balance, BATHUB, and Jensen models) were developed and calibrated for the Winnebago Pools, Wisconsin. These models were used to quantify the input of phosphorus from the sediments of the lakes, and determine how the water quality (total phosphorus concentration, chlorophyll a concentrations, and Secchi depth) should respond to changes in phosphorus loading from the watershed. Each of the models were developed using flow and phosphorus inputs from internal and external sources. This data release is subdivided into 4 parts: 1) Lake Winnebago water-quality data; 2) Mass balance of water and phosphorus for Lake Winnebago, with estimated internal loading of phosphorus estimates; 3) BATHTUB...
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In this data release, we provide the data used to compute total annual phosphorus loads from tributaries and direct drainages to the Great Lakes during 2012-18 using the model load ratio approach and the unit area load approach and the resulting annual loads for 2012–18. This data release consists of: (1) measured loads at 24 sites, computed using the surrogate regression approach (Robertson et al., 2018; Koltun, 2020) that were monitored as part of the Great Lakes Restoration Initiative project, (2) estimated annual loads at point source facilities throughout the Great Lakes Basin obtained from the U.S. Environmental Protection Agency and state agencies, (3) loads subdivided into nonpoint and point source contributions,...
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An inventory of facilities that bottle water or other beverages containing water (including soft drinks, beer, wine, or spirits) or that manufacture ice was compiled by combining available datasets from multiple sources. This water bottling inventory dataset includes facilities within all 50 states of the United States, one federal district (Washington, District of Columbia), and three territories (Guam, Puerto Rico, and Virgin Islands). The inventory focuses on presently active facilities in 2023. Most closed water bottling facilities are not included; however, facilities identified as being a former production site (meaning the facility is still active but the business function has changed) or as closed during...
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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,...
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This data set was compiled to support the development of a model of oxygen reduction rates in Wisconsin groundwater wells; a model which is part of a Groundwater Nitrate Decision Support Tool for Wisconsin. Data were compiled from previously published studies with data collection from 1987 to 2009. Only data describing redox condition, groundwater age, depth to water, and well construction were compiled, though a majority of these studies presented a broader suite of analytes. Parameters compiled include dissolved oxygen, nitrate, indicators of denitrification, and parameters used in estimating groundwater age including tritium and chlorofluorocarbon (CFC) concentration. Age estimates based on these data, where...
    map background search result map search result map GLM model data sets used to evaluate changes in the hydrodynamics of Anvil Lake, Wisconsin Eutrophication water-quality models and supporting water-quality and phosphorus load data used to simulate changes in the water quality of the Winnebago Pool Lakes, Wisconsin, in response to change in phosphorus loading 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 Total phosphorus loads estimated from tributaries and direct drainages to the Great Lakes during 2012–2018 using the model load ratio approach and the unit area load approach Compiled age tracer and redox chemistry data for the State of Wisconsin, 1987-2009 Inventory of water bottling facilities in the United States, 2023, and select water-use data, 1955-2022 GLM model data sets used to evaluate changes in the hydrodynamics of Anvil Lake, Wisconsin Eutrophication water-quality models and supporting water-quality and phosphorus load data used to simulate changes in the water quality of the Winnebago Pool Lakes, Wisconsin, in response to change in phosphorus loading Compiled age tracer and redox chemistry data for the State of Wisconsin, 1987-2009 Total phosphorus loads estimated from tributaries and direct drainages to the Great Lakes during 2012–2018 using the model load ratio approach and the unit area load approach Inventory of water bottling facilities in the United States, 2023, and select water-use data, 1955-2022