A5039504892- Urban Stormwater Management Solutions
- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Fish Ecology and Management Studies
- Smart Materials for Construction
- Flood Risk Assessment and Management
- Hydrology and Sediment Transport Processes
- Water Quality and Resources Studies
- Urban Heat Island Mitigation
- Groundwater flow and contamination studies
- Water Quality and Pollution Assessment
- Coastal wetland ecosystem dynamics
- Freshwater macroinvertebrate diversity and ecology
- Water Quality Monitoring Technologies
- Soil erosion and sediment transport
- Marine and coastal ecosystems
- Rangeland and Wildlife Management
- Ecology and biodiversity studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Land Use and Ecosystem Services
- Sustainable Agricultural Systems Analysis
- Agriculture Sustainability and Environmental Impact
- Environmental Monitoring and Data Management
- Organic Food and Agriculture
- Icing and De-icing Technologies
United States Geological Survey
2017-2024
South Atlantic Water Science Center
2021-2024
University of Molise
2020
District of Columbia Water and Sewer Authority
2018-2019
University of Maryland, College Park
2013-2019
Maryland-Delaware-D.C. Water Science Center
2018
University of Maryland Center for Environmental Science
2013
Michigan State University
2008
Weatherford College
2008
Purchase College
2008
Abstract Hyporheic exchange, enhanced by complex stream channel morphology, can influence biogeochemical processing in the streambed. These processes chemically alter water passing temporarily through streambed, which eventually returns to and potentially affect surface quality. To assess degree of cycling induced streambed we instrumented two 20‐m reaches Red Canyon Creek, Wyoming, each containing a small log dam, with in‐stream minipiezometers temperature data loggers. We simultaneously...
Increasing specific conductance (SC) and chloride concentrations [Cl] negatively affect many stream ecosystems. We characterized spatial variability in SC, [Cl], exceedances of Environmental Protection Agency criteria using nearly 30 million high-frequency observations (2–15 min intervals) for SC modeled from 93 sites across three regions the eastern United States: Southeast, Mid-Atlantic, New England. increase substantially south to north within with impervious surface cover (ISC). In...
Hennig Brandt's discovery of phosphorus (P) occurred during the early European colonization Chesapeake Bay region. Today, P, an essential nutrient on land and water alike, is one principal threats to health bay. Despite widespread implementation best management practices across watershed following in 2010 a total maximum daily load (TMDL) improve bay, P reductions bay's 166,000‐km 2 have been uneven, dissolved loads increased number tributaries. As midpoint 15‐yr TMDL process has now passed,...
Green stormwater infrastructure implementation in urban watersheds has outpaced our understanding of practice effectiveness on streamflow response to precipitation events. Long-term monitoring experimental suburban Clarksburg, Maryland, USA, provided an opportunity examine changes event-based metrics two treatment that transitioned from agriculture development with a high density infiltration-focused control measures (SCMs). Urban Treatment 1 predominantly single family detached housing 33%...
Abstract For over three decades, Chesapeake Bay (USA) has been the focal point of a coordinated restoration strategy implemented through partnership governmental and nongovernmental entities, which classical model for coastal worldwide. This synthesis aims to provide resource managers estuarine scientists with clearer perspective magnitude changes in water quality within watershed, including nitrogen (N), phosphorus (P), sediment River Input Monitoring (RIM) watershed unmonitored below‐RIM...
Urban development is a well-known stressor for stream ecosystems, presenting challenge to managers tasked with mitigating its effects. For the past 20 y, streamflow, water quality, geomorphology, and benthic communities were monitored in 5 watersheds Montgomery County, Maryland, USA. This study presents synthesis of multiple studies monitoring efforts area new analysis more recent data document primary lessons learned from monitoring. The include forested control, an urban control...
Abstract Urbanization threatens headwater stream ecosystems globally. Watershed restoration practices, such as infiltration‐based stormwater management, are implemented to mitigate the detrimental effects of urbanization on aquatic ecosystems. However, their effectiveness for restoring hydrologic processes and watershed storage remains poorly understood. Our study used a comparative hydrology approach quantify urban function in streams within Coastal Plain Maryland, USA. We selected 11 that...
Urbanization is a global stressor of stream ecosystems. Watershed managers in urban regions often implement infiltration-based stormwater control measures (SCMs) to mitigate the effects urbanization. Most research on SCM implementation, however, has focused primarily their sediment and nutrient loading, so little known about effect SCMs other stressors which aquatic ecosystems are especially sensitive (e.g., flow patterns, temperature, conductivity). We addressed this gap by studying...
First posted November 10, 2021 For additional information, contact: Director, Pennsylvania Water Science CenterU.S. Geological Survey215 Limekiln RoadNew Cumberland, PA 17070 Sustaining the quality of Nation's water resources and health our diverse ecosystems depends on availability sound water-resources data information to develop effective, science-based policies. Effective management also brings more certainty efficiency important economic sectors. Taken together, these actions lead...
Biological communities in freshwater streams are often impaired by multiple stressors (e.g., flow or water quality) originating from anthropogenic activities such as urbanization, agriculture, energy extraction. Restoration efforts the Chesapeake Bay watershed, USA seek to improve biological conditions 10% of tributaries and protect integrity existing healthy watersheds. To achieve these goals, resource managers need better understand which most likely driving impairment. Our study addressed...
First posted April 1, 2024 For additional information, contact: Director, South Atlantic Water Science Center U.S. Geological Survey 1770 Corporate Drive, Suite 500 Norcross, GA 30093 Contact Pubs Warehouse Surface-water supplies are important sources of drinking water for residents in the Triangle area North Carolina, which is located within upper Cape Fear and Neuse River Basins. Since 1988, a consortium local governments have participated cooperative effort, known as Area Supply...
First posted July 19, 2024 For additional information, contact: Chesapeake Bay ActivitiesU.S. Geological Survey5522 Research Park DriveBaltimore, MD 21228Contact Pubs Warehouse The Partnership is implementing conservation practices (CPs) throughout the watershed to reduce nutrient and sediment delivery Bay. This study intends provide an integrated detailed understanding of how local streams respond these CP-driven management efforts.Key issue: To what extent do CPs positively affect health...
Stream ecosystems are complex networks of interacting terrestrial and aquatic drivers. To untangle these ecological networks, efforts evaluating the direct indirect effects landscape, climate, instream predictors on biological condition through time needed. We used structural equation modeling leveraged a stream survey program to identify compare important driving benthic macroinvertebrate fish assemblages. data resampled 14 years apart at 252 locations across Maryland, USA. Sample covered...
First posted August 5, 2024 For additional information, contact: Director, South Atlantic Water Science Center1770 Corporate Drive, Suite 500Norcross, GA 30093Contact Us- USGS Publications Warehouse Rivers and surface-water reservoirs supply drinking water to most residents throughout the Triangle area in North Carolina. These drinking-water supplies may be at risk because of rapid continued land use change region. In partnership with U.S. Geological Survey, several Triangle-area...
Elevated conductivity (i.e., specific conductance or SC) causes osmotic stress in freshwater aquatic organisms and may increase the toxicity of some contaminants. Indices benthic macroinvertebrate integrity have declined urban areas across Chesapeake Bay watershed (CBW), more information is needed about whether these declines be due to elevated conductivity. A predictive SC model for CBW was developed using monitoring data from National Water Quality Portal. Predictor variables representing...
First posted April 29, 2016 For additional information, contact: U.S. Geological Survey Northeast Region Urban Landscapes Capability Team Email: GS-NE_ULCT@usgs.gov Managing the urban-water cycle has increasingly become a challenge for water-resources planners and regulators faced with problem of providing clean drinking water to urban residents. Sanitary combined sanitary storm sewer networks convey wastewater centralized treatment plants. Impervious surfaces, which include roads, parking...
First posted February 21, 2023 For additional information, contact: Director, Virginia and West Water Science CenterU.S. Geological Survey1730 East Parham RoadRichmond, 23228Contact Pubs Warehouse “The Bay Connects us, the reflects us” writes Tom Horton in book “Turning Tide—Saving Chesapeake Bay”. The watershed contains largest estuary United States. stretches north to Cooperstown, New York, south Lynchburg Beach, Virginia, west Pendleton County, east Seaford, Delaware, Scranton,...