Erik Smith, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 14
Soil-Water-Balance model data sets for the Cannon River drainage basin, southeast Minnesota, 1995-2010 Soil-Water-Balance model data sets for the Cannon River drainage basin, southeast Minnesota, 1995-2010
A soil-water balance model (SWB) was developed to estimate potential recharge and surface runoff for portions of the Cannon River drainage basin, southeast Minnesota, for the period 1995 through 2010. The model was used in the creation of Cannon River streamflow distribution maps, as part of the associated report, U.S. Geological Survey Scientific Investigations Map 2017-3390 (http://dx...
Soil-Water Balance model datasets used to estimate groundwater recharge to the I-94 growth corridor surficial aquifer, Minnesota, 2010-2014 Soil-Water Balance model datasets used to estimate groundwater recharge to the I-94 growth corridor surficial aquifer, Minnesota, 2010-2014
A soil-water balance model (SWB) was developed to estimate potential recharge to the Interstate 94 Corridor surficial aquifer, located in central Minnesota, for the period 2010 through 2014. The model was not calibrated; however, various water budget components from the model output compared reasonably well with other estimates. Furthermore, the model was based upon the statewide...
Filter Total Items: 20
Groundwater discharge to the Mississippi River and groundwater balances for the Interstate 94 Corridor surficial aquifer, Clearwater to Elk River, Minnesota, 2012–14 Groundwater discharge to the Mississippi River and groundwater balances for the Interstate 94 Corridor surficial aquifer, Clearwater to Elk River, Minnesota, 2012–14
The Interstate 94 Corridor has been identified as 1 of 16 Minnesota groundwater areas of concern because of its limited available groundwater resources. The U.S. Geological Survey, in cooperation with the Minnesota Department of Natural Resources, completed six seasonal and annual groundwater balances for parts of the Interstate 94 Corridor surficial aquifer to better understand its long...
Authors
Erik Smith, David Lorenz, Erich Kessler, Andrew Berg, Christopher Sanocki
Water-quality models to assess algal community dynamics, water quality, and fish habitat suitability for two agricultural land-use dominated lakes in Minnesota, 2014 Water-quality models to assess algal community dynamics, water quality, and fish habitat suitability for two agricultural land-use dominated lakes in Minnesota, 2014
Fish habitat can degrade in many lakes due to summer blue-green algal blooms. Predictive models are needed to better manage and mitigate loss of fish habitat due to these changes. The U.S. Geological Survey (USGS), in cooperation with the Minnesota Department of Natural Resources, developed predictive water-quality models for two agricultural land-use dominated lakes in Minnesota—Madison...
Authors
Erik Smith, Richard Kiesling, Jeffrey Ziegeweid
Potential groundwater recharge for the State of Minnesota using the Soil-Water-Balance model, 1996-2010 Potential groundwater recharge for the State of Minnesota using the Soil-Water-Balance model, 1996-2010
Groundwater recharge is one of the most difficult components of a water budget to ascertain, yet is an important boundary condition necessary for the quantification of water resources. In Minnesota, improved estimates of recharge are necessary because approximately 75 percent of drinking water and 90 percent of agricultural irrigation water in Minnesota are supplied from groundwater. The...
Authors
Erik Smith, Stephen Westenbroek
Water quality and algal community dynamics of three deepwater lakes in Minnesota utilizing CE-QUAL-W2 models Water quality and algal community dynamics of three deepwater lakes in Minnesota utilizing CE-QUAL-W2 models
Water quality, habitat, and fish in Minnesota lakes will potentially be facing substantial levels of stress in the coming decades primarily because of two stressors: (1) land-use change (urban and agricultural) and (2) climate change. Several regional and statewide lake modeling studies have identified the potential linkages between land-use and climate change on reductions in the volume...
Authors
Erik Smith, Richard Kiesling, Joel Galloway, Jeffrey Ziegeweid
Electron donor concentrations in sediments and sediment properties at the agricultural chemicals team research site near New Providence, Iowa, 2006-07 Electron donor concentrations in sediments and sediment properties at the agricultural chemicals team research site near New Providence, Iowa, 2006-07
The concentrations of electron donors in aquifer sediments are important to the understanding of the fate and transport of redox-sensitive constituents in groundwater, such as nitrate. For a study by the U.S. Geological Survey National Water-Quality Assessment Program, 50 sediment samples were collected from below the water table from 11 boreholes at the U.S. Geological Survey...
Authors
Bijesh Maharjan, Scott Korom, Erik Smith
Anthropogenic organic compounds in ground water and finished water of community water systems in the Greater Twin Cities metropolitan area, Minnesota and Wisconsin, 2004–05 Anthropogenic organic compounds in ground water and finished water of community water systems in the Greater Twin Cities metropolitan area, Minnesota and Wisconsin, 2004–05
As part of the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Program, two Source Water-Quality Assessments (SWQAs) were conducted during 2004–05 in unconfined parts of the glacial aquifer system and in unconfined parts of the Prairie du Chien-Jordan aquifer in the Greater Twin Cities metropolitan area of Minnesota and Wisconsin. SWQAs are two-phased sampling...
Authors
Lan Tornes, James Stark, Christopher Hoard, Erik Smith
Evaluation of sulfate reduction at experimentally induced mixing interfaces using small-scale push-pull tests in an aquifer-wetland system Evaluation of sulfate reduction at experimentally induced mixing interfaces using small-scale push-pull tests in an aquifer-wetland system
This paper presents small-scale push–pull tests designed to evaluate the kinetic controls on SO42- reduction in situ at mixing interfaces between a wetland and aquifer impacted by landfill leachate at the Norman Landfill research site, Norman, OK. Quantifying the rates of redox reactions initiated at interfaces is of great interest because interfaces have been shown to be zones of...
Authors
T.A. Kneeshaw, Jennifer T. McGuire, Erik Smith, Isabelle Cozzarelli
Temporal variations in parameters reflecting terminal-electron-accepting processes in an aquifer contaminated with waste fuel and chlorinated solvents Temporal variations in parameters reflecting terminal-electron-accepting processes in an aquifer contaminated with waste fuel and chlorinated solvents
A fundamental issue in aquifer biogeochemistry is the means by which solute transport, geochemical processes, and microbiological activity combine to produce spatial and temporal variations in redox zonation. In this paper, we describe the temporal variability of TEAP conditions in shallow groundwater contaminated with both waste fuel and chlorinated solvents. TEAP parameters (including...
Authors
Jennifer T. McGuire, Erik Smith, David Long, David Hyndman, Sheridan Haack, Michael Klug, Michael Velbel
Science and Products
Filter Total Items: 14
Soil-Water-Balance model data sets for the Cannon River drainage basin, southeast Minnesota, 1995-2010 Soil-Water-Balance model data sets for the Cannon River drainage basin, southeast Minnesota, 1995-2010
A soil-water balance model (SWB) was developed to estimate potential recharge and surface runoff for portions of the Cannon River drainage basin, southeast Minnesota, for the period 1995 through 2010. The model was used in the creation of Cannon River streamflow distribution maps, as part of the associated report, U.S. Geological Survey Scientific Investigations Map 2017-3390 (http://dx...
Soil-Water Balance model datasets used to estimate groundwater recharge to the I-94 growth corridor surficial aquifer, Minnesota, 2010-2014 Soil-Water Balance model datasets used to estimate groundwater recharge to the I-94 growth corridor surficial aquifer, Minnesota, 2010-2014
A soil-water balance model (SWB) was developed to estimate potential recharge to the Interstate 94 Corridor surficial aquifer, located in central Minnesota, for the period 2010 through 2014. The model was not calibrated; however, various water budget components from the model output compared reasonably well with other estimates. Furthermore, the model was based upon the statewide...
Filter Total Items: 20
Groundwater discharge to the Mississippi River and groundwater balances for the Interstate 94 Corridor surficial aquifer, Clearwater to Elk River, Minnesota, 2012–14 Groundwater discharge to the Mississippi River and groundwater balances for the Interstate 94 Corridor surficial aquifer, Clearwater to Elk River, Minnesota, 2012–14
The Interstate 94 Corridor has been identified as 1 of 16 Minnesota groundwater areas of concern because of its limited available groundwater resources. The U.S. Geological Survey, in cooperation with the Minnesota Department of Natural Resources, completed six seasonal and annual groundwater balances for parts of the Interstate 94 Corridor surficial aquifer to better understand its long...
Authors
Erik Smith, David Lorenz, Erich Kessler, Andrew Berg, Christopher Sanocki
Water-quality models to assess algal community dynamics, water quality, and fish habitat suitability for two agricultural land-use dominated lakes in Minnesota, 2014 Water-quality models to assess algal community dynamics, water quality, and fish habitat suitability for two agricultural land-use dominated lakes in Minnesota, 2014
Fish habitat can degrade in many lakes due to summer blue-green algal blooms. Predictive models are needed to better manage and mitigate loss of fish habitat due to these changes. The U.S. Geological Survey (USGS), in cooperation with the Minnesota Department of Natural Resources, developed predictive water-quality models for two agricultural land-use dominated lakes in Minnesota—Madison...
Authors
Erik Smith, Richard Kiesling, Jeffrey Ziegeweid
Potential groundwater recharge for the State of Minnesota using the Soil-Water-Balance model, 1996-2010 Potential groundwater recharge for the State of Minnesota using the Soil-Water-Balance model, 1996-2010
Groundwater recharge is one of the most difficult components of a water budget to ascertain, yet is an important boundary condition necessary for the quantification of water resources. In Minnesota, improved estimates of recharge are necessary because approximately 75 percent of drinking water and 90 percent of agricultural irrigation water in Minnesota are supplied from groundwater. The...
Authors
Erik Smith, Stephen Westenbroek
Water quality and algal community dynamics of three deepwater lakes in Minnesota utilizing CE-QUAL-W2 models Water quality and algal community dynamics of three deepwater lakes in Minnesota utilizing CE-QUAL-W2 models
Water quality, habitat, and fish in Minnesota lakes will potentially be facing substantial levels of stress in the coming decades primarily because of two stressors: (1) land-use change (urban and agricultural) and (2) climate change. Several regional and statewide lake modeling studies have identified the potential linkages between land-use and climate change on reductions in the volume...
Authors
Erik Smith, Richard Kiesling, Joel Galloway, Jeffrey Ziegeweid
Electron donor concentrations in sediments and sediment properties at the agricultural chemicals team research site near New Providence, Iowa, 2006-07 Electron donor concentrations in sediments and sediment properties at the agricultural chemicals team research site near New Providence, Iowa, 2006-07
The concentrations of electron donors in aquifer sediments are important to the understanding of the fate and transport of redox-sensitive constituents in groundwater, such as nitrate. For a study by the U.S. Geological Survey National Water-Quality Assessment Program, 50 sediment samples were collected from below the water table from 11 boreholes at the U.S. Geological Survey...
Authors
Bijesh Maharjan, Scott Korom, Erik Smith
Anthropogenic organic compounds in ground water and finished water of community water systems in the Greater Twin Cities metropolitan area, Minnesota and Wisconsin, 2004–05 Anthropogenic organic compounds in ground water and finished water of community water systems in the Greater Twin Cities metropolitan area, Minnesota and Wisconsin, 2004–05
As part of the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Program, two Source Water-Quality Assessments (SWQAs) were conducted during 2004–05 in unconfined parts of the glacial aquifer system and in unconfined parts of the Prairie du Chien-Jordan aquifer in the Greater Twin Cities metropolitan area of Minnesota and Wisconsin. SWQAs are two-phased sampling...
Authors
Lan Tornes, James Stark, Christopher Hoard, Erik Smith
Evaluation of sulfate reduction at experimentally induced mixing interfaces using small-scale push-pull tests in an aquifer-wetland system Evaluation of sulfate reduction at experimentally induced mixing interfaces using small-scale push-pull tests in an aquifer-wetland system
This paper presents small-scale push–pull tests designed to evaluate the kinetic controls on SO42- reduction in situ at mixing interfaces between a wetland and aquifer impacted by landfill leachate at the Norman Landfill research site, Norman, OK. Quantifying the rates of redox reactions initiated at interfaces is of great interest because interfaces have been shown to be zones of...
Authors
T.A. Kneeshaw, Jennifer T. McGuire, Erik Smith, Isabelle Cozzarelli
Temporal variations in parameters reflecting terminal-electron-accepting processes in an aquifer contaminated with waste fuel and chlorinated solvents Temporal variations in parameters reflecting terminal-electron-accepting processes in an aquifer contaminated with waste fuel and chlorinated solvents
A fundamental issue in aquifer biogeochemistry is the means by which solute transport, geochemical processes, and microbiological activity combine to produce spatial and temporal variations in redox zonation. In this paper, we describe the temporal variability of TEAP conditions in shallow groundwater contaminated with both waste fuel and chlorinated solvents. TEAP parameters (including...
Authors
Jennifer T. McGuire, Erik Smith, David Long, David Hyndman, Sheridan Haack, Michael Klug, Michael Velbel