John D. Jastram
John Jastram is a Hydrologist who serves as the Chief of the Watershed Studies Section and the Program Development Specialist for the U.S. Geological Survey's Virginia and West Virginia Water Science Center in Richmond, VA.
John has been involved with a wide variety of USGS water-resources investigations since 2002, mostly focused on utilizing continuous water-quality monitoring to improve nutrient and sediment load estimation, and application of these methods in small urban watersheds. John became the Chief of the Watershed Studies Section in 2020. In this role he provides leadership for a team of scientists conducting monitoring- and modeling-based studies of surface water quality. John is also responsible for providing program development leadership within the Center.
Education and Certifications
M.S. in Environmental Science and Engineering, Virginia Tech
B.S. in Environmental Analysis and Planning, Frostburg State University
Science and Products
Synthesis of thirty years of surface water quality and aquatic biota data in Shenandoah National Park: Collaboration between the US Geological Survey and the National Park Service
Streamflow, water quality, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007-12
Synthesis and interpretation of surface-water quality and aquatic biota data collected in Shenandoah National Park, Virginia, 1979-2009
Increasing precision of turbidity-based suspended sediment concentration and load estimates
A Comparison of Turbidity-Based and Streamflow-Based Estimates of Suspended-Sediment Concentrations in Three Chesapeake Bay Tributaries
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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Synthesis of thirty years of surface water quality and aquatic biota data in Shenandoah National Park: Collaboration between the US Geological Survey and the National Park Service
The eastern United States has been the recipient of acidic atmospheric deposition (hereinafter, “acid rain”) for many decades. Deleterious effects of acid rain on natural resources have been well documented for surface water (e.g., Likens et al. 1996; Stoddard et al. 2001), soils (Bailey et al. 2005), forest health (Long et al. 2009), and habitat suitability for stream biota (Baker et al. 1993). SAuthorsKaren C. Rice, John D. Jastram, John E. B. Wofford, James P. SchaberlStreamflow, water quality, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007-12
Efforts to mitigate the effects of urbanization on streams rely on best management practices (BMPs) that are implemented with the intent of reducing and retaining stormwater runoff. A cooperative monitoring effort between the U.S. Geological Survey and Fairfax County, Virginia, was initiated in 2007 to assess the condition of county streams and document watershed-scale responses to the implementatAuthorsJohn D. JastramSynthesis and interpretation of surface-water quality and aquatic biota data collected in Shenandoah National Park, Virginia, 1979-2009
Shenandoah National Park in northern and central Virginia protects 777 square kilometers of mountain terrain in the Blue Ridge physiographic province and more than 90 streams containing diverse aquatic biota. Park managers and visitors are interested in the water quality of park streams and its ability to support healthy coldwater communities and species, such as the native brook trout (SalvelinusAuthorsJohn D. Jastram, Craig D. Snyder, Nathaniel P. Hitt, Karen C. RiceIncreasing precision of turbidity-based suspended sediment concentration and load estimates
Turbidity is an effective tool for estimating and monitoring suspended sediments in aquatic systems. Turbidity can be measured in situ remotely and at fine temporal scales as a surrogate for suspended sediment concentration (SSC), providing opportunity for a more complete record of SSC than is possible with physical sampling approaches. However, there is variability in turbidity-based SSC estimateAuthorsJohn D. Jastram, Carl E. Zipper, Lucian W. Zelanzny, Kenneth E. HyerA Comparison of Turbidity-Based and Streamflow-Based Estimates of Suspended-Sediment Concentrations in Three Chesapeake Bay Tributaries
Fluvial transport of sediment into the Chesapeake Bay estuary is a persistent water-quality issue with major implications for the overall health of the bay ecosystem. Accurately and precisely estimating the suspended-sediment concentrations (SSC) and loads that are delivered to the bay, however, remains challenging. Although manual sampling of SSC produces an accurate series of point-in-time measuAuthorsJohn D. Jastram, Douglas Moyer, Kenneth HyerNon-USGS Publications**
Jastram, J.D., Zipper, C.E., Zelazny, L.W., and Hyer, K.E., 2010, Increasing Precision of Turbidity-Based Suspended Sediment Concentration and Load Estimates: Journal of Environment Quality, v. 39, no. 4, p. 1306 – 1316.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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