USGS Chesapeake Bay Activities
Sediment is a major pollutant degrading aquatic ecosystems in the Chesapeake Bay watershed. The USGS is conducting studies to determine the relative importance of streambank erosion to other sediment sources, such as upland erosion, in both agricultural and urban areas. The information is necessary so resource managers can focus on the types, and locations, of practices that will be most effective to reduce sediment.
Results of new USGS research
Results of this USGS study were published in the journal “Geomorphology (Gellis and others, 2017). The study of the Difficult Run study area in Northern, VA (Figure 1), found that:
Implications for ecosystem management include:
Source of information
The USGS findings described in this Science Summary is available by accessing the document below, which should be used as the reference for this information:
Gellis, A.C., Myers, M.K. Noe, G.B., Hupp, C.R. Schenk, E.R., and Myers, L., 2017, Storms, channel changes, and a sediment budget for an urban-suburban stream, Difficult Run, Virginia, USA: Geomorphology, v. 278, p.128–148, https://pubs.er.usgs.gov/publication/70180363 accessed February 24, 2017.
Additional information about the sediment sources and sediment budgets for the Chesapeake Bay can be found at:
Gellis, A.C., Hupp, C.R., Pavich, M.J., Landwehr, J.M., Banks, W.S.L., Hubbard, B.E., Langland, M.J., Ritchie, J.C., and Reuter, J.M., 2009, Sources, Transport, and Storage of Sediment at Selected Sites in the Chesapeake Bay Watershed: U.S. Geological Survey Scientific Investigations Report 2008-5186, 95 p. https://pubs.er.usgs.gov/publication/sir20085186
Devereux, O.H., Prestegaard, K.L., Needelman, B.A., Gellis, A.C., 2010, Suspended-sediment sources in an urban watershed, Northeast Branch Anacostia River, Maryland: Hydrological Processes, v. 24(11), p. 1391 – 1403.
Massoudieh, A., Gellis., A.C., Banks, W.S., and Wieczorek, M.E., 2012, Suspended sediment source apportionment in Chesapeake Bay watershed using Bayesian chemical mass balance receptor modeling: Hydrological Processes, DOI: 10.1002/hyp.9429, published online: 6 JUL 2012.
Gellis, A.C., Noe, G.B., Clune, J.W., Myers, M.K., Hupp, C.R., Schenk, E.R., and Schwarz, G.E., 2015, Sources of fine grained sediment in the Linganore Creek watershed, Frederick and Carroll Counties, Maryland, 2008–10: U.S. Geological Survey Scientific Investigations Report 2014–5147, 56 p. http://pubs.usgs.gov/sir/2014/5147/
For additional information about this science summary:
Contact Allen Gellis at firstname.lastname@example.org.
For additional information about USGS Chesapeake Bay studies:
Visit the USGS Chesapeake Bay Web site at http://chesapeake.usgs.gov/.