Publications
Browse more than 150,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
Upper Midwest Environmental Sciences Center Publications
Filter Total Items: 3223
Endocrine active chemicals, pharmaceuticals, and other chemicals of concern in surface water, wastewater-treatment plant effluent, and bed sediment, and biological characteristics in selected streams, Minnesota: Design, methods, and data, 2009
This report presents the study design, environmental data, and quality-assurance data for an integrated chemical and biological study of selected streams or lakes that receive wastewater-treatment plant effluent in Minnesota. This study was a cooperative effort of the U.S. Geological Survey, the Minnesota Pollution Control Agency, St. Cloud State University, the University of St. Thomas, and the U
Authors
Kathy Lee, Susan K. Langer, Larry B. Barber, Jeff H. Writer, Mark L. Ferrey, Heiko L. Schoenfuss, Edward T. Furlong, William T. Foreman, James L. Gray, Rhiannon C. ReVello, Dalma Martinovic, Olivia R. Woodruff, Steffanie H. Keefe, Greg K. Brown, Howard E. Taylor, Imma Ferrer, E. Michael Thurman
In-stream water-quality estimation: Case studies in real-time stream and lake monitoring in the central USA
Five U.S. Geological Survey case studies in real-time stream and lake monitoring are presented. The emphases of the case studies are in-stream biological characteristics, fecal coliform bacteria, atrazine, phosphorus, and taste-and-odor compounds.
Authors
Victoria G. Christensen, Andrew C. Ziegler, Jennifer L. Graham, Rachel A. Esralew
MODFLOW-style parameters in underdetermined parameter estimation
In this article, we discuss the use of MODFLOW-Style parameters in the numerical codes MODFLOW_2005 and MODFLOW_2005-Adjoint for the definition of variables in the Layer Property Flow package. Parameters are a useful tool to represent aquifer properties in both codes and are the only option available in the adjoint version. Moreover, for overdetermined parameter estimation problems, the parameter
Authors
Marco D. D'Oria, Michael N. Fienen
Predicting lake trophic state by relating Secchi-disk transparency measurements to Landsat-satellite imagery for Michigan inland lakes, 2003-05 and 2007-08
Inland lakes are an important economic and environmental resource for Michigan. The U.S. Geological Survey and the Michigan Department of Natural Resources and Environment have been cooperatively monitoring the quality of selected lakes in Michigan through the Lake Water Quality Assessment program. Sampling for this program began in 2001; by 2010, 730 of Michigan’s 11,000 inland lakes are expected
Authors
L. M. Fuller, R.S. Jodoin, R. J. Minnerick
Water availability and use pilot: A multiscale assessment in the U.S. Great Lakes Basin
Beginning in 2005, water availability and use were assessed for the U.S. part of the Great Lakes Basin through the Great Lakes Basin Pilot of a U.S. Geological Survey (USGS) national assessment of water availability and use. The goals of a national assessment of water availability and use are to clarify our understanding of water-availability status and trends and improve our ability to forecast t
Authors
Howard W. Reeves
Approaches to highly parameterized inversion: Pilot-point theory, guidelines, and research directions
Pilot points have been used in geophysics and hydrogeology for at least 30 years as a means to bridge the gap between estimating a parameter value in every cell of a model and subdividing models into a small number of homogeneous zones. Pilot points serve as surrogate parameters at which values are estimated in the inverse-modeling process, and their values are interpolated onto the modeling domai
Authors
John E. Doherty, Michael N. Fienen, Randall J. Hunt
Source apportionment of atmospheric trace gases and particulate matter--Comparison of log-ratio and traditional approaches
No abstract available.
Authors
Mark A. Engle, Bernhard Peucker-Ehrenbrink, Josep M. Martín-Fernández, David P. Krabbenhoft, Paul J. Lamothe, Michael H. Bothner, Ricardo A. Olea, Allan Kolker, Michael T. Tate
By
Ecosystems Mission Area, Water Resources Mission Area, Energy Resources Program, Environmental Health Program, Toxic Substances Hydrology, Geology, Energy & Minerals Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Woods Hole Coastal and Marine Science Center, Mercury Research Laboratory
Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models
Nutrient input to the Laurentian Great Lakes continues to cause problems with eutrophication. To reduce the extent and severity of these problems, target nutrient loads were established and Total Maximum Daily Loads are being developed for many tributaries. Without detailed loading information it is difficult to determine if the targets are being met and how to prioritize rehabilitation efforts. T
Authors
Dale M. Robertson, David A. Saad
Biomarkers of mercury exposure in two eastern Ukraine cities
This study evaluates biomarkers of mercury exposure among residents of Horlivka, a city in eastern Ukraine located in an area with geologic and industrial sources of environmental mercury, and residents of Artemivsk, a nearby comparison city outside the mercury-enriched area. Samples of urine, blood, hair, and nails were collected from study participants, and a questionnaire was administered to ob
Authors
H. Gibb, C. Haver, K. Kozlov, J.A. Centeno, V. Jurgenson, Allan Kolker, Kathryn M. Conko, Edward R. Landa, H. Xu
Swallows as a sentinel species for contaminant exposure and effect studies
Tree swallows are an important model species to study the effects of contaminants in wild bird populations and have been used extensively in studies across North America. The advantages of swallows compared to other avian species are detailed. Three case histories are provided where swallows have been successfully used in Natural Resource Damage and Ecological Risk Assessments. The final two secti
Authors
Christine M. Custer
Occurrence and fate of the herbicide glyphosate and its degradate aminomethylphosphonic acid in the atmosphere
This is the first report on the ambient levels of glyphosate, the most widely used herbicide in the United States, and its major degradation product, aminomethylphosphonic acid (AMPA), in air and rain. Concurrent, weekly integrated air particle and rain samples were collected during two growing seasons in agricultural areas in Mississippi and Iowa. Rain was also collected in Indiana in a prelimina
Authors
Feng-Chih Chang, M.F. Simcik, P. D. Capel
Proactive aquatic ecotoxicological assessment of room-temperature ionic liquids
Aquatic environments are being contaminated with a myriad of anthropogenic chemicals, a problem likely to continue due to both unintentional and intentional releases. To protect valuable natural resources, novel chemicals should be shown to be environmentally safe prior to use and potential release into the environment. Such proactive assessment is currently being applied to room-temperature ionic
Authors
K. J. Kulacki, D. T. Chaloner, James H. Larson, D. M. Costello, M. A. Evans-White, K. M. Docherty, R. J. Bernot, M. A. Brueseke, C. F. Kulpa, G. A. Lamberti