Can River Sediments Sequester Nutrient Pollution? (Project)

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This project will enhance our understanding of the role that river sediments play in controlling downstream nutrient loading, eutrophication, and hypoxia and will help provide the foundation to enable future monitoring of sediment-related nutrient fluxes through ground-based remote sensing cameras. … Learn More

Development of Communication and Mapping Software for Small Organizations in Puerto Rico (Project)

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Background: Hurricane Maria in 2017 resulted in catastrophic loss of life and property in Puerto Rico. The human losses may have been lessened by establishment of and robust support for communication software to be used by small organizations on the … Learn More

Evaluating Reservoir Sedimentation Using the Army Corps RSI Database (Project)

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This is a collaborative project with University of Iowa (Co-PI) and U.S. Army Corps of Engineers (sponsor). Background: Reservoirs are a vital component of our nation’s water-resources infrastructure, yet many reservoirs across the nation are slowly filling with sediment, reducing … Learn More

Future River Analysis and Management Evaluation (FRAME) Tool (Project)

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This is a collaborative project with University of Portsmouth (PI), University of Nottingham (Co-PI), and U.S. Army Corps of Engineers (sponsor). Rivers are dynamic systems that change over time in response to environmental and water management factors. River channels respond … Learn More

Microplastic Contamination in Groundwater as a Function of Land Use (Project)

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Microplastic (plastic < 5 mm in size) contamination is ubiquitous and has been found in environments ranging from deep ocean floors to Artic Sea ice. Microplastics are concerning emerging contaminants because they degrade slowly, are highly mobile, and can be … Learn More

Microplastic Debris Storage and Transport in Small Urban Streams (Project)

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Collaborators: Natalie F. Hernandez, M.S., and Elizabeth A. Hasenmueller, Ph.D. Microplastics, 1 μm – 5 mm plastic particles, are ubiquitous global contaminants. The debris is concerning to human and ecological health due to ingestion by a range of species and … Learn More

Microplastic Pollution During Flood Events (Project)

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Collaborators: Teresa Baraza, M.S., and Elizabeth Hasenmueller, Ph.D. Carbonate critical zones (CZs) are often characterized by the presence of dissolution features in bedrock that lead to high connectivity between the surface and subsurface. Carbonate aquifers can therefore be highly susceptible … Learn More

River Morphology Data and Analysis Tools (Project)

rimorphis.org

This is a collaborative project with Purdue University (PI), University of Iowa (Co-PI), and University of Colorado (Co-PI). Information on river shape, bed morphology and sediment load are critical to help inform research and management issues related to river channels. … Learn More

Scour Analysis at Missouri Bridges (Project)

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Background: Complex ground transportation networks coexist with dynamic river network systems and bridges are a common element at the intersections of these networks. A primary concern for bridge stability is scour, a turbulent physical process in which hydrodynamic forces (e.g., … Learn More

Using Low Cost, In Situ Measurements of Optical Brighteners to Identify Wastewater Inputs into a Suburban Stream (Project)

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Untreated wastewater entering the environment through leaking infrastructure, faulty septic systems, and sewer overflows threatens both human and aquatic health. Water managers need low cost field methods to detect wastewater contamination in real time to promptly employ mitigation strategies. While … Learn More

Water Quality in Agricultural Critical Zones (Project)

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Agricultural land use is essential for food production, but intensively managed landscapes can considerably alter the “critical zone,” which is the thin, life-supporting layer of Earth’s surface from the tops of the trees to the bottom of the groundwater. Excess … Learn More