Daniel T. Feinstein
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View article: A Regional Model Comparison between <scp>MODPATH</scp> and <scp>MT3D</scp> of Groundwater Travel Time Distributions
A Regional Model Comparison between <span>MODPATH</span> and <span>MT3D</span> of Groundwater Travel Time Distributions Open
Groundwater quality changes in wells and streams lag behind changes to land use due to groundwater travel times. Two contaminant transport methods were compared to assess differences in their simulated travel time distributions (TTDs) to s…
View article: Trophic Ecology of the Tiger Shark ( <i>Galeocerdo cuvier</i> ) and Bengal Whipray ( <i>Brevitrygon imbricata</i> ) Harvested by Sri Lankan Fisheries Based on Stable Isotope Analysis
Trophic Ecology of the Tiger Shark ( <i>Galeocerdo cuvier</i> ) and Bengal Whipray ( <i>Brevitrygon imbricata</i> ) Harvested by Sri Lankan Fisheries Based on Stable Isotope Analysis Open
Synopsis Sri Lankan fisheries have substantial elasmobranch catches, but the local ecology of individual species is not well characterized. We examine the tiger shark (Galeocerdo cuvier) and Bengal whipray (Brevitrygon imbricata), two elas…
View article: Numerical models of groundwater flow in folded and faulted aquifers in mountainous areas: trade-offs between numerical error and runtime
Numerical models of groundwater flow in folded and faulted aquifers in mountainous areas: trade-offs between numerical error and runtime Open
Groundwater flow in folded and faulted terrains is governed by the geological structure, which exerts a significant influence on the flow directions and on the spring location. Numerical modeling can be challenging because the comple…
View article: Groundwater residence times in glacial aquifers—A new general simulation-model approach compared to conventional inset models
Groundwater residence times in glacial aquifers—A new general simulation-model approach compared to conventional inset models Open
First posted June 1, 2023 For additional information, contact: Director, New England Water Science CenterU.S. Geological Survey10 Bearfoot RoadNorthborough, MA 01532 Groundwater is important as a drinking-water source and for maintaining b…
View article: Hydrologic change in the St. Louis River Basin from iron mining on the Mesabi Iron Range, northeastern Minnesota
Hydrologic change in the St. Louis River Basin from iron mining on the Mesabi Iron Range, northeastern Minnesota Open
First posted January 31, 2023 For additional information, contact: Director, Upper Midwest Water Science Center U.S. Geological Survey1 Gifford Pinchot Drive Madison, WI 53726Contact Pubs Warehouse This study compares the results of two re…
View article: Simulation of groundwater flow at the former Badger Army Ammunition Plant, Sauk County, Wisconsin
Simulation of groundwater flow at the former Badger Army Ammunition Plant, Sauk County, Wisconsin Open
First posted May 4, 2023 For additional information, contact: Director, Upper Midwest Water Science CenterU.S. Geological Survey1 Gifford Pinchot DriveMadison, WI 53726Contact Pubs Warehouse To help support remedial efforts at the former B…
View article: Simulation of Heat Flow in a Synthetic Watershed: The Role of the Unsaturated Zone
Simulation of Heat Flow in a Synthetic Watershed: The Role of the Unsaturated Zone Open
Future climate forecasts suggest atmospheric warming, with expected effects on aquatic systems (e.g., cold-water fisheries). Here we apply a recently published and computationally efficient approach for simulating unsaturated/saturated hea…
View article: Simulation of Heat Flow in a Synthetic Watershed: Lags and Dampening across Multiple Pathways under a Climate-Forcing Scenario
Simulation of Heat Flow in a Synthetic Watershed: Lags and Dampening across Multiple Pathways under a Climate-Forcing Scenario Open
Although there is widespread agreement that future climates tend toward warming, the response of aquatic ecosystems to that warming is not well understood. This work, a continuation of companion research, explores the role of distinct wate…
View article: Groundwater/surface-water interactions in the Partridge River Basin and evaluation of hypothetical future mine pits, Minnesota
Groundwater/surface-water interactions in the Partridge River Basin and evaluation of hypothetical future mine pits, Minnesota Open
First posted November 4, 2021 For additional information, contact: Director, Upper Midwest Water Science CenterU.S. Geological Survey1 Gifford Pinchot Drive,Madison, WI 53726Contact Pubs Warehouse The Partridge River Basin (PRB) covers 156…
View article: A Simple Method for Simulating Groundwater Interactions with Fens to Forecast Development Effects
A Simple Method for Simulating Groundwater Interactions with Fens to Forecast Development Effects Open
Protection of fens–wetlands dependent on groundwater discharge–requires characterization of groundwater sources and stresses. Because instrumentation and numerical modeling of fens is labor intensive, easy‐to‐apply methods that model fen d…
View article: Metamodeling for Groundwater Age Forecasting in the Lake Michigan Basin
Metamodeling for Groundwater Age Forecasting in the Lake Michigan Basin Open
Groundwater age is an important indicator of groundwater susceptibility to anthropogenic contamination and a key input to statistical models for forecasting water quality. Numerical models can provide estimates of groundwater age, enabling…
View article: Extraction and development of inset models in support of groundwater age calculations for glacial aquifers
Extraction and development of inset models in support of groundwater age calculations for glacial aquifers Open
First posted June 22, 2018 For additional information, contact: Midwest Water Science Center 8505 Research Way Middleton, WI 53562 (608) 828–9901 The U.S. Geological Survey developed a regional model of Lake Michigan Basin (LMB). This repo…
View article: Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity
Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity Open
First posted May 4, 2017 For additional information, contact: Director, Wisconsin Water Science CenterU.S. Geological Survey 8505 Research Way Middleton, WI 53562 The U.S. Geological Survey, National Water-Quality Assessment seeks to map e…
View article: Estimation of the groundwater resources of the bedrock aquifers at the Kettle Moraine Springs State Fish Hatchery, Sheboygan County, Wisconsin
Estimation of the groundwater resources of the bedrock aquifers at the Kettle Moraine Springs State Fish Hatchery, Sheboygan County, Wisconsin Open
First posted October 12, 2017 For additional information, contact: Director, Wisconsin Water Science Center U.S. Geological Survey 8505 Research Way Middleton, WI 53562 Groundwater resources information was needed to understand regional aq…
View article: GWM-2005, MODFLOW-2005, MODFLOW-NWT, and SEAWAT-2000 groundwater flow models of the Bedrock Aquifers at the Kettle Moraine Springs State Fish Hatchery, Sheboygan County, Wisconsin
GWM-2005, MODFLOW-2005, MODFLOW-NWT, and SEAWAT-2000 groundwater flow models of the Bedrock Aquifers at the Kettle Moraine Springs State Fish Hatchery, Sheboygan County, Wisconsin Open
Three groundwater flow models (KMS model, Pumping Test model, and Modified LMB model) were developed for the Kettle Moraine Springs State Fish Hatchery using the U.S. Geological Survey codes MODLOW-NWT, GWM-2005, MODFLOW-2005, and SEAWAT-2…
View article: MODFLOW-NWT 2016 groundwater flow model for Dane County, Wisconsin
MODFLOW-NWT 2016 groundwater flow model for Dane County, Wisconsin Open
A new groundwater flow model was created for Dane County, Wisconsin, to replace an earlier model developed in the 1990s by the Wisconsin Geological and Natural History Survey (WGNHS) and the U.S. Geological Survey (USGS). This modeling stu…