Sheila Murphy

Biography

Sheila Murphy focuses on the characterization of the hydrology and water chemistry of watersheds and how they are affected by both natural factors and disturbance. Her recent research has evaluated the effects of wildfire on stream water quantity and quality in the Colorado Front Range, and the hydrologic and geochemical responses to geology, land cover change, and hurricanes in a tropical forest in Puerto Rico.

Publications:

Murphy, S.F., McCleskey, R.B., Martin, D.A., Writer, J.H., and Ebel, B.A., in press, Fire, flood, and drought—Extreme climate events alter flow paths and stream chemistry: Journal of Geophysical Research: Biogeosciences, https://doi.org/10.1029/2017JG004349.

Murphy, S. F., McCleskey, R. B., & Writer, J. H. (2018). Water chemistry data for Fourmile Creek Watershed, 2010-2015. U.S. Geological Survey database, https://doi.org/10.5066/F7Z60N8T.

Dethier, D.P., Ouimet, W.B., Murphy, S.F., Kotikian, M., Wicherski, W., and Samuel, R.M., 2018, Anthropocene landscape change and the legacy of 19th- and 20th-century mining in the Fourmile catchment, Colorado Front Range: Annals of American Geographers, 108(4)), pp. 917-937, https://doi.org/10.1080/24694452.2017.1406329.

McMillan, S.K., Wilson, H.F., Tague, C.L., Hanes, D.M., Inamdar, S., Karway, D.L., Loecke, T., Morrison, J., Murphy, S.F., and Vidon, P., 2018, Before the storm- Antecdent conditions as regulators of hydrologic and biogeochemical response to extreme climate events: Biogeochemistry, https://doi.org/10.1007/s10533-018-0482-6.

Murphy, S.F., Stallard, R.F., Scholl, M.A., González, G., Torres-Sánchez, A.J., 2017, Reassessing rainfall in the Luquillo Mountains, Puerto Rico: Local and global ecohydrological implications: PLOS ONE 12(7): e0180987. https://doi.org/10.1371/journal.pone.0180987.

Murphy, S.F., Stallard, R.F., Scholl, M.A., González, G., and Torres-Sánchez, A.J, 2017, Geospatial data for Luquillo Mountains, Puerto Rico: Mean annual precipitation, elevation, watershed outlines, and rain gage locations: U.S. Geological Survey data release, https://doi.org/10.5066/F74F1PM2.

Bassiouni, M., Scholl, M.A., Torres-Sanchez, A.J., Murphy, S.F., 2017, A method for quantifying cloud immersion in a tropical mountain forest using time-lapse photography: Agricultural and Forest Meteorology, 243, 100-112, http://dx.doi.org/10.1016/j.agrformet.2017.04.010

Bassiouni, M., Scholl, M.A., Torres-Sanchez, A.J., and Murphy, S.F., 2017, Supplementary data for method for quantifying cloud immersion in a tropical mountain forest using time-lapse photography: U.S. Geological Survey Data Release, http://dx.doi.org/10.5066/F7HQ3X52

Hinckley, E.-L.S., Ebel, B.A., Barnes, R.T., Murphy, S.F., and Anderson, S.P., 2017, Critical zone properties control the fate of Nitrogen during experimental rainfall in montane forests of the Colorado Front Range: Biogeochemistry, v. 132, pp 213–231, https://link.springer.com/article/10.1007/s10533-017-0299-8.

Mast, M.A., Murphy, S.F., Clow, D.W., Penn, C., and Sexstone, G., 2016, Water-quality response to a high-elevation wildfire in the Colorado Front Range: Hydrological Processes, DOI: 10.1002/hyp.10755 [Link]

Murphy, S.F.; Writer, J.H.; McCleskey, R.B.; Martin, D.A., 2015. The role of precipitation type, intensity, and spatial distribution in source water quality after wildfire: Environmental Research Letters, v. 10, no. 8, 084007: 1-13. doi:10.1088/1748-9326/10/8/08400713 [Link]

Scholl, M.A., Shanley, J.B., Murphy, S.F., Willenbring, J.K., Occhi, M., and Gonzalez, G., 2015, Stable-isotope and solute-chemistry approaches to flow characterization in a forested tropical watershed, Luquillo Mountains, Puerto Rico, Applied Geochemistry, doi:10.1016/j.apgeochem.2015.03.008 [Link]

Antweiler, R.C., Writer, J.H., and Murphy, S.F., 2014, Evaluation of wastewater contaminant transport in surface waters using verified Lagrangian sampling: Science of the Total Environment: v. 470–471, p. 551-558. [Link]

Stallard, R.F., and Murphy, S.F., 2014, A unified assessment of hydrological and biogeochemical responses in research watersheds in Eastern Puerto Rico using runoff-concentration relations: Aquatic Geochemistry, v. 20, pp 115-139: DOI 10.1007/s10498-013-9216-5. [Link]

Scholl, M.A. and Murphy, S.F., 2014, Precipitation isotopes link regional climate patterns to water supply in a tropical mountain forest, eastern Puerto Rico, Water Resources Research 50, doi: 10.1002/2013WR014413. [Link]

Murphy, S.F., McCleskey, R.B. & Writer J.W., 2012. Effects of flow regimes on stream turbidity and suspended solids after wildfire, Colorado Front Range, USA. IAHS Publ. 354. IAHS Press. Wallingford, UK.

Writer, J.H.; McClelskey, R. B.; Murphy, S.F., 2012. Effects of wildfire on source-water quality and aquatic ecosystems, Colorado Front Range. IAHS Publications , 6 p.

Murphy, S.F., and Stallard, R.F., eds., 2012, Water quality and landscape processes of four watersheds in eastern Puerto Rico: U.S. Geological Survey Professional Paper 1789. [Link]

Murphy, S.F., and Stallard, R.F., 2012, Hydrology and climate of four watersheds in eastern Puerto Rico, ch. C in Murphy, S.F., and Stallard, R.F., eds., Water quality and landscape processes of four watersheds in eastern Puerto Rico: U.S. Geological Survey Professional Paper 1789–C. [Link]

Murphy, S.F., Stallard, R.F., Larsen, M.C., and Gould, W.A., 2012, Physiography, geology, and land cover of four watersheds in eastern Puerto Rico—ch. A, in Murphy, S.F. and Stallard, R.F., eds., Water quality and landscape processes of four watersheds in eastern Puerto Rico: U.S. Geological Survey Professional Paper 1789–A. [Link]

Stallard, R.F., and Murphy, S.F., 2012, Water quality and mass transport in four watersheds in eastern Puerto Rico—ch. E, in Murphy, S.F., and Stallard, R.F., eds., Water quality and landscape processes of four watersheds in eastern Puerto Rico: U.S. Geological Survey Professional Paper 1789–E. [Link]

Writer, J.H. and Murphy, S.F., 2012, Wildfire Effects on Source-Water Quality—Lessons from Fourmile Canyon Fire, Colorado, and Implications for Drinking-Water Treatment: U.S. Geological Survey Fact Sheet 2012–3095, 4 p. [Link]

McCleskey, R.B., Writer, J.H., and Murphy, S.F., 2012, Water chemistry of surface waters affected by the Fourmile Canyon wildfire, Colorado, 2010–2011: U.S. Geological Survey Open-File Report 2012–1104, 11 p. [Link]

Murphy, S.F., and Writer, J.H., 2011, Evaluating the effects of wildfire on stream processes in a Colorado front range watershed, USA: Applied Geochemistry, v. 26, supplement 1, p. s.S363-S364. [Link]

Murphy, S.F. and Stallard, R.F., 2009. Primary factors affecting water quality and quantity in four watersheds in Eastern Puerto Rico, in Webb, R.M.T., and Semmens, D.J., eds, Proceedings of the Third Interagency Conference on Research in the Watersheds: Planning for an Uncertain Future: Monitoring, Integration, and Adaptation: U.S. Geological Survey Scientific Investigations Report 2009-5049. Estes Park, Colorado, September 9-11, 2008, p. 251-256. [Link]

Glynn, P.A., Larsen, M.C., Greene, E.A., Buss, H.L., Clow, D.W., Hunt, R.J., Mast, M.A., Murphy, S.F., Peters, N.E., Sebestyen, S.D., Shanley, J.B., and Walker, J.F., 2009, Selected Achievements, Science Directions, and New Opportunities for the WEBB Small Watershed Research Program, in Webb, R.M.T., and Semmens, D.J., eds, Proceedings of the Third Interagency Conference on Research in the Watersheds: Planning for an Uncertain Future: Monitoring, Integration, and Adaptation: U.S. Geological Survey Scientific Investigations Report 2009-5049, p. 39-52.[Link]

Verplanck P.L., Murphy S.F., Birkeland P.W., Pitlick J., Barber L.B., and Schmidt, T.S., 2008, Boulder Creek—A stream ecosystem in an urban landscape, in R.G. Raynolds, ed., Roaming the Rocky Mountains and Environs—Geological Field Trips: GSA Field Guide Vol. 10, No. 0 pp. 217–233. [Link]

Murphy, S.F., 2006. State of the watershed: water quality of Boulder Creek, Colorado. Circular 1284, 34 p. [Link]

Barber, L.B., Murphy, S.F., Verplanck, P.L., Sandstrom, M.W., Taylor, H.E., and Furlong, E.T., 2006, Chemical loading into surface water along a hydrological, biogeochemical, and land use gradient—A holistic watershed approach: Environmental Science and Technology, v. 40, p. 475–486. [Link]

Murphy, S.F.; Verplanck, P.L.; Barber, L.B., editors, 2003. Comprehensive water quality of the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000. Water-Resources Investigations Report 2003-4045, xiii, 198 p. : ill., maps (some col.) ; 28 cm. [Link]

Verplanck, P.L.; Murphy, S.F.; Barber, L.B., 2003. Water quality of the Boulder Creek Watershed, Colorado. Fact Sheet 043-03, 1 folded sheet ([4] p.) : col. ill., col. map ; 28 cm. [Link]

Murphy, S.F., Barber, L.B., Verplanck, P.L., and Kinner, D.A., 2003, Environmental setting and hydrology of the Boulder Creek Watershed– Chapter 1 in Murphy, S.F., Verplanck, P.L., and Barber, L.B., eds., Comprehensive water quality of the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000: U.S. Geological Survey Water-Resources Investigations Report 03-4045, p. 5-26. [Link]

Murphy, S.F., Shelley, J.J., Stout, J.A., and Mead, E.P., 2003, Basic water quality in the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000– Chapter 3 in Murphy, S.F., Verplanck, P.L., and Barber, L.B., eds., Comprehensive water quality of the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000: U.S. Geological Survey Water-Resources Investigations Report 03-4045, p. 41-70. [Link]

Schramke, J.A., Murphy, S.F., Doucette, W.J., and Hintze, W.D., 1999, Prediction of aqueous diffusion coefficients for organic compounds at 25°C: Chemosphere, vol. 38, issue 10, pp. 2381-2406. [Link]

Murphy, S.F., Brantley, S.L., Blum, A.E., White, A.F., and Dong, H., 1998, Chemical weathering in a tropical mountain watershed, Luquillo Mountains, Puerto Rico II– The rate and mechanism of biotite weathering: Geochimica et Cosmochimica Acta, vol. 62, no. 2, pp. 227-243.[Link]

White, A.F., Blum, A.E., Schulz, M.S., Vivit, D., Stonestrom, D.A., Larsen, M.C., Murphy, S.F., and Eberl, D.D., 1998, Chemical weathering in a tropical mountain watershed, Luquillo Mountains, Puerto Rico I– Weathering rates based on mineral and solute mass balances: Geochimica et Cosmochimica Acta, vol. 62, no. 2, pp. 209-226. [Link]

Dong, H., Peacor, D.R., and Murphy, S.F., 1998, TEM study of progressive weathering of igneous biotite to kaolinite throughout a weathered soil profile: Geochimica et Cosmochimica Acta, vol. 62, no. 11, pp. 1881-1887. [Link]