James Webber
Jimmy Webber is the Associate Coordinator of USGS Chesapeake Bay studies.
Jimmy has been a hydrologist with the USGS since 2012 and has collaborated extensively with science centers throughout the mid-Atlantic region. He has led many Chesapeake Bay science activities in coordination with federal, state, and local partners. His work has focused on understanding the factors affecting water quality in small agricultural and urban streams, as well as explaining nutrient and sediment trends in large Chesapeake Bay rivers. He has a Bachelor’s degree in Environmental Resource Management and a Master’s degree in Forest Resources from the Pennsylvania State University.
Professional Experience
2024–Present, USGS Chesapeake Bay Associate Coordinator
2012–2024, USGS Hydrologist
Education and Certifications
M.S., Forest Resources, 2012, The Pennsylvania State University
B.S., Environmental Resource Management, 2010, The Pennsylvania State University
Science and Products
Filter Total Items: 18
Spatial and temporal patterns in streamflow, water chemistry, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007–18 Spatial and temporal patterns in streamflow, water chemistry, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007–18
Urbanization substantially alters the landscape in ways that can impact stream hydrology, water chemistry, and the health of aquatic communities. Stormwater best management practices (BMPs) are the primary tools used to mitigate the effects of urban stressors such as increased runoff, decreased baseflow, and increased nutrient and sediment transport. To date, Fairfax County Virginia’s...
Authors
Aaron Porter, James Webber, Jonathan Witt, John Jastram
Science to support water-resource management in the upper Roanoke River watershed Science to support water-resource management in the upper Roanoke River watershed
Flooding, excessive sedimentation, and high bacteria counts are among the most challenging water resource issues affecting the Upper Roanoke River watershed. These issues threaten public safety, impair the watershed’s living resources, and threaten drinking water supplies, though mitigation is costly and difficult to manage.Urban development, land disturbance, and changing climatic...
Authors
James Webber, John Jastram
Sediment dynamics and implications for management: State of the science from long‐term research in the Chesapeake Bay watershed, USA Sediment dynamics and implications for management: State of the science from long‐term research in the Chesapeake Bay watershed, USA
This review aims to synthesize the current knowledge of sediment dynamics using insights from long‐term research conducted in the watershed draining to the Chesapeake Bay, the largest estuary in the U.S., to inform management actions to restore the estuary and its watershed. The sediment dynamics of the Chesapeake are typical of many impaired watersheds and estuaries around the world...
Authors
Gregory Noe, Matthew Cashman, Katherine Skalak, Allen Gellis, Kristina Hopkins, Douglas Moyer, James Webber, Adam Benthem, Kelly Maloney, John Brakebill, Andrew Sekellick, Michael Langland, Qian Zhang, Gary Shenk, Jennifer Keisman, Cliff Hupp
Factors driving nutrient trends in streams of the Chesapeake Bay watershed Factors driving nutrient trends in streams of the Chesapeake Bay watershed
Despite decades of effort toward reducing nitrogen and phosphorus flux to Chesapeake Bay, water-quality and ecological responses in surface waters have been mixed. Recent research, however, provides useful insight into multiple factors complicating the understanding of nutrient trends in bay tributaries, which we review in this paper, as we approach a 2025 total maximum daily load (TMDL)...
Authors
Scott Ator, Joel Blomquist, James Webber, Jeffrey Chanat
Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; and Di Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; and Di
Despite widespread and ongoing implementation of conservation practices throughout the Chesapeake Bay watershed, water quality continues to be degraded by excess sediment and nutrient inputs. While the Chesapeake Bay Program has developed and maintains a large-scale and long-term monitoring network to detect improvements in water quality throughout the watershed, fewer resources have...
Authors
Kenneth E. Hyer, Judith Denver, Michael Langland, James S. Webber, J. K. Böhlke, W. Dean Hively, John Clune
Evaluation and application of regional turbidity-sediment regression models in Virginia Evaluation and application of regional turbidity-sediment regression models in Virginia
Conventional thinking has long held that turbidity-sediment surrogate-regression equations are site specific and that regression equations developed at a single monitoring station should not be applied to another station; however, few studies have evaluated this issue in a rigorous manner. If robust regional turbidity-sediment models can be developed successfully, their applications...
Authors
Kenneth Hyer, John Jastram, Douglas Moyer, James S. Webber, Jeffrey Chanat
Science and Products
Filter Total Items: 18
Spatial and temporal patterns in streamflow, water chemistry, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007–18 Spatial and temporal patterns in streamflow, water chemistry, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007–18
Urbanization substantially alters the landscape in ways that can impact stream hydrology, water chemistry, and the health of aquatic communities. Stormwater best management practices (BMPs) are the primary tools used to mitigate the effects of urban stressors such as increased runoff, decreased baseflow, and increased nutrient and sediment transport. To date, Fairfax County Virginia’s...
Authors
Aaron Porter, James Webber, Jonathan Witt, John Jastram
Science to support water-resource management in the upper Roanoke River watershed Science to support water-resource management in the upper Roanoke River watershed
Flooding, excessive sedimentation, and high bacteria counts are among the most challenging water resource issues affecting the Upper Roanoke River watershed. These issues threaten public safety, impair the watershed’s living resources, and threaten drinking water supplies, though mitigation is costly and difficult to manage.Urban development, land disturbance, and changing climatic...
Authors
James Webber, John Jastram
Sediment dynamics and implications for management: State of the science from long‐term research in the Chesapeake Bay watershed, USA Sediment dynamics and implications for management: State of the science from long‐term research in the Chesapeake Bay watershed, USA
This review aims to synthesize the current knowledge of sediment dynamics using insights from long‐term research conducted in the watershed draining to the Chesapeake Bay, the largest estuary in the U.S., to inform management actions to restore the estuary and its watershed. The sediment dynamics of the Chesapeake are typical of many impaired watersheds and estuaries around the world...
Authors
Gregory Noe, Matthew Cashman, Katherine Skalak, Allen Gellis, Kristina Hopkins, Douglas Moyer, James Webber, Adam Benthem, Kelly Maloney, John Brakebill, Andrew Sekellick, Michael Langland, Qian Zhang, Gary Shenk, Jennifer Keisman, Cliff Hupp
Factors driving nutrient trends in streams of the Chesapeake Bay watershed Factors driving nutrient trends in streams of the Chesapeake Bay watershed
Despite decades of effort toward reducing nitrogen and phosphorus flux to Chesapeake Bay, water-quality and ecological responses in surface waters have been mixed. Recent research, however, provides useful insight into multiple factors complicating the understanding of nutrient trends in bay tributaries, which we review in this paper, as we approach a 2025 total maximum daily load (TMDL)...
Authors
Scott Ator, Joel Blomquist, James Webber, Jeffrey Chanat
Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; and Di Spatial and temporal variation of stream chemistry associated with contrasting geology and land-use patterns in the Chesapeake Bay watershed—Summary of results from Smith Creek, Virginia; Upper Chester River, Maryland; Conewago Creek, Pennsylvania; and Di
Despite widespread and ongoing implementation of conservation practices throughout the Chesapeake Bay watershed, water quality continues to be degraded by excess sediment and nutrient inputs. While the Chesapeake Bay Program has developed and maintains a large-scale and long-term monitoring network to detect improvements in water quality throughout the watershed, fewer resources have...
Authors
Kenneth E. Hyer, Judith Denver, Michael Langland, James S. Webber, J. K. Böhlke, W. Dean Hively, John Clune
Evaluation and application of regional turbidity-sediment regression models in Virginia Evaluation and application of regional turbidity-sediment regression models in Virginia
Conventional thinking has long held that turbidity-sediment surrogate-regression equations are site specific and that regression equations developed at a single monitoring station should not be applied to another station; however, few studies have evaluated this issue in a rigorous manner. If robust regional turbidity-sediment models can be developed successfully, their applications...
Authors
Kenneth Hyer, John Jastram, Douglas Moyer, James S. Webber, Jeffrey Chanat