Dr. Scott’s research program at Virginia Tech focuses on water quality throughout river corridors, from small headwater streams in Appalachia to large riverine floodplains in the southeast. His research combines hydrology and biogeochemistry to increase our fundamental understanding of material fate and transport into and within river corridors. Current interests include (1) quantifying changes to land-water delivery of water and nutrients in response to external perturbations (climate, land-use change), (2) the influence river-floodplain connectivity on water quality, (3) the cumulative role of impoundments on ecosystem services, (4) novel approaches for stream restoration, and (5) coastal water quality. The goal of this work is to produce tangible results that land managers, policy makers, and other researchers can use for a sustainable future.
Dr. Scott is an Associate Professor in the Biological Systems Engineering Department at Virginia Tech. He has served within the Biogeosciences section of AGU, and currently is co-leading a national scale Powell Center Project on River Corridor Science. Within Virginia, he serves on an Academic Advisory Committee for Water Quality.
At Virginia Tech, Dr. Scott co-leads a Cross-Boundary Biogeosciences Group, and serves on the University’s Green Engineering committee. He teaches courses in Green Engineering, Field Methods in Hydrology, and Numerical Methods.
Recent Relevant Publications
Rana, SM.M., D.T. Scott, and E.T. Hester. 2017. Effects of in-stream structures and channel flow rate variation on transient storage. Journal of Hydrology 548:157-169. DOI: 10.1016/j.jhydrol.2017.02.049.
Hester, E.T., B. Hammond, and D.T. Scott. 2016. Effects of inset floodplains and hyporheic exchange induced by in-stream structures on nitrate removal in a headwater stream. Ecological Engineering 97:452-464. DOI: 10.1016/j.ecoleng.2016.10.036
Jones C., D. Scott, C. Guth, E. Hester, and W. Hession. 2015. Seasonal Variation in Floodplain Biogeochemical Processing in a Restored Headwater Stream. Environ. Sci. Technol., 2015, 49 (22), pp 13190–13198 DOI: 10.1021/ acs.est.5b02426.
Menichino G., D. Scott, E. Hester. 2015. Abundance and dimensions of naturally occurring macropores along stream channels and the effects of artificially constructed large macropores on transient storage. Freshwater Science 34(1):125–138.
Azinheira, D., D. Scott, C. Hession, and E. Hester. 2014. Comparison of effects of inset floodplains and hyporheic exchange induced by in-stream structures on solute retention. Water Resources Research. DOI: 10.1002/2013WR014400.
Jones, N., D. Scott, B. Edwards, and R. Keim. 2014. Perirheic mixing and biogeochemical processing in flow-through and backwater floodplain wetlands. Water Resources Research. DOI: 10.1002/2014WR015647.
Scott, D., R. Keim, B. Edwards, N. Jones, and D. Kroes. 2014. Floodplain biogeochemical processing of floodwaters during the Mississippi River flood of 2011. Journal of Geophysical Research – Biogeosciences. DOI: 10.1002/2013JG002477.
Harvey, J., J. Bohlke, M. Voytek, D. Scott, and C. Tobias. 2013 Hyporheic zone denitrification: Controls on effective reaction depth and contribution to whole-stream mass balance. Water Resources Research. DOI: 10.1002/wrcr.20492.
Fellman, J., S. Nagorski, S. Pyare, A. Vemilyea, D. Scott, and E. Hood. 2013. Stream temperature response to variable glacier coverage in coastal watersheds of Southeast Alaska. Hydrological Processes. DOI: 10.1002/hyp.9742
Stubbins, A., E. Hood, P. Raymond, G. Aiken, R. Sleighter, P. Hernes, D. Butman, P. Hatcher, R. Streigel, P. Schuster, A. Vermilyea, D. Scott, and R. Spencer. 2012. Anthropogenic aerosols as a source of ancient dissolved organic matter in glaciers. Nature Geoscience 5(3): 198-201.
Hood, E., J. Fellman, R. Spencer, P. Hernes, R. Edwards, D. D’Amore, D. Scott. 2009. Glaciers as a source of ancient and labile organic matter to the marine environment. Nature 462, 1044-1047. doi:10.1038/nature08580