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Upper Midwest Water Science Center

Welcome to the Upper Midwest Water Science Center’s (UMid) Website. We offer information on streamflow, water quality, water-use, and groundwater data for Minnesota, Wisconsin and Michigan. We conduct unbiased, scientific hydrologic investigations and research projects to effectively manage the Upper Midwest's and our Nation's water resources through joint efforts with our partners.

News

Meet the team at the Rhinelander, Wisconsin field office

Meet the team at the Rhinelander, Wisconsin field office

Exploring How Gold Mining Impacts Mercury Releases in Western Ghana

Exploring How Gold Mining Impacts Mercury Releases in Western Ghana

Upper Midwest Water Science Center Products Published Fall 2024

Upper Midwest Water Science Center Products Published Fall 2024

Publications

Hydrogeomorphic history, hydrodynamic conditions, and simulations of water levels and velocities from varying lake levels and streamflow for the Sheboygan Rivermouth and area of concern, Wisconsin

In 2011–13, the U.S. Geological Survey (USGS) conducted a study of the hydrogeomorphic setting and hydrodynamic conditions of the lower Sheboygan River and island complex within the backwater zone of Lake Michigan. Analyses of historical aerial photographs from 1938–2010 indicated that the Wildwood Islands complex had experienced mainly erosion and what was mainly one island in 1938 had...
Authors
Faith A. Fitzpatrick, Stephen, M. Westenbroek, Paul C. Reneau, James D. Blount

Uranium mining, the Grand Canyon region, and the science of an ecosystem

Illustration of U.S. Geological Survey science at breccia pipe mines in the Grand Canyon region. The upper left portion shows a cross section of a breccia pipe and rock layers (far upper left) in a panoramic view of the Grand Canyon with upper right depicting rock pinnacles the Havasupai Tribe call Wi’i Gileeva. The right portion depicts a spring. The Colorado River bisects the...
Authors
Benjamin J. Siebers

Using machine learning in Minnesota’s StreamStats to predict fluvial sediment

A thorough understanding of fluvial sediment transport is essential for addressing key environmental issues such as aquatic habitat degradation, flooding, excess nutrients, and challenges with river restoration. Fluvial sediment samples are valuable for addressing these concerns, but their collection is often impractical across all rivers and timeframes of interest. In addition...
Authors
Joel T. Groten, J. William Lund, Erin N. Coenen, Andrea S. Medenblik, Harper N. Wavra, Mike Kennedy, Gregory D. Johnson

Science

Innovative Sensor Development for Detecting Low-Micrometer Plastics in Freshwater Systems

Plastic pollution is a significant global issue in aquatic ecosystems, with low-micrometer plastics (LMMPs) posing particular risks owing to their small size and prevalence in various environments. The U.S. Geological Survey and collaborators are developing an innovative sensor to detect and analyze LMMPs in freshwater systems, achieving rapid and accurate results without the need for additional...
link

Innovative Sensor Development for Detecting Low-Micrometer Plastics in Freshwater Systems

Plastic pollution is a significant global issue in aquatic ecosystems, with low-micrometer plastics (LMMPs) posing particular risks owing to their small size and prevalence in various environments. The U.S. Geological Survey and collaborators are developing an innovative sensor to detect and analyze LMMPs in freshwater systems, achieving rapid and accurate results without the need for additional...
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Wildfires Increase Mercury Concentrations in Headwater Streams

The U.S. Geological Survey is researching the effect of wildfires on the release of stored mercury from forest watersheds and subsequent transport, methylmercury formation, and bioaccumulation post-fire. Wildfires not only alter the re-release of mercury into the environment but also affect its reactivity and availability to the food web, complicating predictions of mercury exposure risks to...
link

Wildfires Increase Mercury Concentrations in Headwater Streams

The U.S. Geological Survey is researching the effect of wildfires on the release of stored mercury from forest watersheds and subsequent transport, methylmercury formation, and bioaccumulation post-fire. Wildfires not only alter the re-release of mercury into the environment but also affect its reactivity and availability to the food web, complicating predictions of mercury exposure risks to...
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Fluvial Sediment Estimates in StreamStats

Fluvial sediment samples are valuable for addressing key environmental concerns such as aquatic habitat degradation and excess nutrients, but their collection is often impractical across all rivers and timeframes of interest. In addition, previously used analytical and numerical methods (Gray and Simões, 2008; Ellison and others, 2016) have not allowed for the transfer of knowledge from sites that...
link

Fluvial Sediment Estimates in StreamStats

Fluvial sediment samples are valuable for addressing key environmental concerns such as aquatic habitat degradation and excess nutrients, but their collection is often impractical across all rivers and timeframes of interest. In addition, previously used analytical and numerical methods (Gray and Simões, 2008; Ellison and others, 2016) have not allowed for the transfer of knowledge from sites that...
Learn More
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