Maryland-Delaware-D.C. Water Science Center
Publications
Below is a list of publications with authors who are based at the Maryland-Delaware-District of Columbia Water Science Center. Please note: some of the publications listed may be from professional journals that require additional subscription to access.
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Simulated effects of sea-level rise on the shallow, fresh groundwater system of Assateague Island, Maryland and Virginia
The U.S. Geological Survey, in cooperation with the National Park Service, developed a three-dimensional groundwater-flow model for Assateague Island in eastern Maryland and Virginia to assess the effects of sea-level rise on the groundwater system. Sea-level rise is expected to increase the altitude of the water table in barrier island aquifer...
Fleming, Brandon J.; Raffensperger, Jeff P.; Goodling, Phillip J.; Masterson, John P.
Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity
Pesticides occur in urban streams globally, but the relation of occurrence to urbanization can be obscured by regional differences. In studies of five regions of the United States, we investigated the effect of region and urbanization on the occurrence and potential toxicity of dissolved pesticide mixtures. We analyzed 225 pesticide compounds in...
Nowell, Lisa H.; Moran, Patrick W.; Bexfield, Laura M.; Mahler, Barbara; Van Metre, Peter C.; Bradley, Paul; Schmidt, Travis S.; Button, Daniel T.; Qi, Sharon L. Evaluating low flow patterns, drivers and trends in the Delaware River Basin
In the humid, temperate Delaware River Basin (DRB) where water availability is generally reliable, summer low flows can cause competition between various human and ecological water uses. As temperatures continue to rise, population increases and development expands, it is critical to understand historical low flow variability to anticipate and...
Hammond, John; Fleming, Brandon J. Multi-region assessment of chemical mixture exposures and predicted cumulative effects in USA wadeable urban/agriculture-gradient streams
Chemical-contaminant mixtures are widely reported in large stream reaches in urban/agriculture-developed watersheds, but mixture compositions and aggregate biological effects are less well understood in corresponding smaller headwaters, which comprise most of stream length, riparian connectivity, and spatial biodiversity. During 2014–2017,...
Bradley, Paul; Journey, Celeste A.; Romanok, Kristin; Breitmeyer, Sara; Button, Daniel T.; Carlisle, Daren M.; Huffman, Bradley; Mahler, Barbara; Nowell, Lisa H.; Qi, Sharon L.; Smalling, Kelly; Waite, Ian R.; Van Metre, Peter C.
Meeting the challenge: U.S. Geological Survey North Atlantic and Appalachian Region fiscal year 2020 in review
The utilization, preservation, and conservation of the Nation’s resources requires well-informed management decisions. The North Atlantic and Appalachian Region (NAAR) of the U.S. Geological Survey (USGS) supports science-based decision making for Federal, State, and local policymakers to meet the challenges of today and into the future. The...
Mapping stream and floodplain geomorphic characteristics with the Floodplain and Channel Evaluation Tool (FACET) in the Mid-Atlantic Region, United States
Quantifying channel and floodplain geomorphic characteristics is essential for understanding and modeling sediment and nutrient dynamics in fluvial systems. The increased availability of high-resolution elevation data from light detection and ranging (lidar) has helped improve methods for extracting these metrics at a greater accuracy across...
Metes, Marina; Hopkins, Kristina G.; Ahmed, Labeeb; Lamont, Samuel; Claggett, Peter R.; Noe, Gregory B.
Ecological forecasting—21st century science for 21st century management
Natural resource managers are coping with rapid changes in both environmental conditions and ecosystems. Enabled by recent advances in data collection and assimilation, short-term ecological forecasting may be a powerful tool to help resource managers anticipate impending near-term changes in ecosystem conditions or dynamics. Managers may use the...
Bradford, John B.; Weltzin, Jake; Mccormick, Molly; Baron, Jill; Bowen, Zack; Bristol, Sky; Carlisle, Daren; Crimmins, Theresa; Cross, Paul; DeVivo, Joe; Dietze, Mike; Freeman, Mary; Goldberg, Jason; Hooten, Mevin; Hsu, Leslie; Jenni, Karen; Keisman, Jennifer L.; Kennen, Jonathan; Lee, Kathy; Lesmes, David; Loftin, Keith; Miller, Brian W.; Murdoch, Peter S.; Newman, Jana; Prentice, Karen L.; Rangwala, Imtiaz; Read, Jordan; Sieracki, Jennifer; Sofaer, Helen; Thur, Steve; Toevs, Gordon; Werner, Francisco; White, C. LeAnn; White, Timothy; Wiltermuth, Mark Monthly suspended-sediment apportionment for a western Lake Erie agricultural tributary
Black Creek, a headwater to the Maumee River and western Lake Erie, is an agricultural basin with a mix of cropland (66%), pasture (19%), and forest (7%) linked by a road network to the rural community. Suspended sediment was collected monthly during the 2018 water year for the main stem and two sub-basins using in-situ, passive samplers that...
Williamson, Tanja N.; Dobrowolski, Edward G.; Gellis, Allen; Sabitov, Timur; Gorman Sanisaca, Lillian Zero or not? Causes and consequences of zero-flow stream gage readings
Streamflow observations can be used to understand, predict, and contextualize hydrologic, ecological, and biogeochemical processes and conditions in streams. Stream gages are point measurements along rivers where streamflow is measured, and are often used to infer upstream watershed‐scale processes. When stream gages read zero, this may indicate...
Zimmer, Margaret; Kaiser, Kendra E.; Blaszczak, Joanna; Zipper, Samuel; Hammond, John; Fritz, Ken M.; Costigan, Katie H.; Hosen, Jacob D.; Godsey, Sarah E; Allen, George; Kampf, Stephanie K.; Burrow, Ryan; Krabbenhoft, Corey; Dodds, Walter; Hale, Rebecca L.; Olden, Julian D.; Shanafield, Margaret; DelVecchia, Amanda; Ward, Adam S; Mims, Meryl C.; Datry, Thibault; Bogan, Michael A.; Boersma, Kate; Busch, Michelle; Jones, Nathan M. ; Burgin, Amy; Allen, Daniel
Hydrogeology and shallow groundwater quality in the tidal Anacostia River watershed, Washington, D.C.
Groundwater hydrology and geochemistry within the tidal Anacostia River watershed of Washington, D.C. are related to natural and human influences. The U.S. Geological Survey, in cooperation with the District Department of Energy & Environment, began investigating the hydrogeology and groundwater quality of the watershed in 2002. Lithologic...
Ator, Scott W.; Denver, Judith M.; Dieter, Cheryl A. Sequential biodegradation of 1,2,4-trichlorobenzene at oxic-anoxic groundwater interfaces in model laboratory columns
Halogenated organic solvents such as chlorobenzenes (CBs) are frequent groundwater contaminants due to legacy spills. When contaminated anaerobic groundwater discharges into surface water through wetlands and other transition zones, aeration can occur from various physical and biological processes at shallow depths, resulting in oxic-anoxic...
Chow, Steven J.; Lorah, Michelle M.; Wadhawan, Amar R.; Durant, Neal D.; Bouwer, Edward J. Sub-annual streamflow responses to rainfall and snowmelt inputs in snow-dominated watersheds of the western U.S.
Streamflow generation in mountain watersheds is strongly influenced by snow accumulation and melt, and multiple studies have found that snow loss leads to earlier snowmelt timing and declines in annual streamflow. However, hydrologic responses to snow loss are heterogeneous, and not all areas experience streamflow declines. This research examines...
Hammond, John; Kampf, Stephanie K.