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John Risley

Research Hydrologist

Contact Info


Short Biography

John Risley has been with the USGS Oregon Water Science Center since 1991 and holds M.S. and PhD degrees in watershed hydrology from the University of Arizona. He has worked on a variety of surface-water statistical, watershed modeling, streamflow temperature modeling, and climate change studies.






Buccola, N.L, Rounds, S.A., Sullivan, A.B., and Risley, J.C., 2012, Simulating potential structural and operational changes for Detroit Dam on the North Santiam River, Oregon, for downstream temperature management: U.S. Geological Survey Scientific Investigations Report 2012–5231, 68 p.

Snyder, D.T., Risley, J.C., and Haynes, J.V., 2012, Hydrological information products for the Off-Project Water Program of the Klamath Basin Restoration Agreement: U.S. Geological Survey Open-File Report 2012–1199.

Risley, J.C., Wallick, J.R., Mangano, J.F., and Jones, K.F., 2012, An environmental streamflow assessment for the Santiam River basin, Oregon: U.S. Geological Survey Open-File Report 2012-1133, 66 p.

Risley, J.C., Hay, L.E., and Markstrom, S.L., 2012, Watershed scale response to climate change—Sprague River Basin, Oregon: U.S. Geological Survey Fact Sheet 2011–3120, 6 p.

Risley, J.C., Brewer, S.J., and Perry, R.W., 2012, Simulated effects of dam removal on water temperatures along the Klamath River, Oregon and California, using 2010 Biological Opinion flow requirements: U.S. Geological Survey Open-File Report 2011–1311, 18 p.

Markstrom, S.L., Hay, L.E., Ward-Garrison, C.D., Risley, J.C., Battaglin, W.A., Bjerklie, D.M., Chase, K.J., Christiansen, D.E., Dudley, R.W., Hunt, R.J., Koczot, K.M., Mastin, M.C., Regan, R.S., Viger, R.J., Vining, K.C., and Walker, J.F., 2012, Integrated watershed-scale response to climate change for selected basins across the United States: U.S. Geological Survey Scientific Investigations Report 2011–5077, 143 p.

Wallick, J.R., O’Connor, J.E., Anderson, S., Keith, M., Cannon, C., and Risley, J.C., 2011, Channel change and bed-material transport in the Umpqua River basin, Oregon: U.S. Geological Survey Scientific Investigations Report 2011–5041, 112 p.

Perry, R.W., Risley, J.C., Brewer, S.J., Jones, E.C., and Rondorf, D.W., 2011, Simulating daily water temperatures of the Klamath River under dam removal and climate change scenarios: U.S. Geological Survey Open-File Report 2011-1243, 78 p.

Jones, K.L., Wallick, J.R., O'Connor, J.E., Keith, M.K., Mangano, J.F., Risley, J.C., 2011, Preliminary assessment of channel stability and bed-material transport along Hunter Creek, southwestern Oregon: U.S. Geological Survey Open-File Report 2011-1160, 41 p.

Risley, J., Moradkhani, H., Hay, L., and Markstrom, S., 2011, Statistical comparisons of watershed scale response to climate change in selected basins across the United States: Earth Interactions, 15(14), 26 p.

Risley, J.C., Bach, L, and Wallick, J.R., 2010, Summary Report: Environmental Flows Workshop for the McKenzie River, Oregon: The Nature Conservancy, Portland, Oregon, 40 p.

Risley, J.C., Constantz, J., Essaid, H., and Rounds, S., 2010, Effects of upstream dams versus groundwater pumping on stream temperature under varying climate conditions: Water Resources Research, doi:10.1029/2009WR008587

Risley, J.C., Wallick, J.R., Waite, I., and Stonewall, A., 2010, Development of an environmental flow framework for the McKenzie River basin, Oregon: U.S. Geological Survey Scientific Investigations Report 2010-5016, 94 p.

Wallick, J.R., O'Connor, J.E., Anderson, S., Keith, M., Cannon, C., and Risley, J.C., 2010, Channel change and bed-material transport in the Umpqua River basin, Oregon: U.S. Geological Survey Open-File Report 2010–1314, 135 p. and 3 appendices.

Hay, L.E., McCabe, G.J., Clark, M.P., and Risley, J.C., 2009, Reducing Streamflow Forecast Uncertainty: Application and Qualitative Assessment of the Upper Klamath River Basin, Oregon: Journal of the American Water Resources Association, (JAWRA), 45(3):580-596. DOI: 10.1111/j.1752-1688.2009.00307, p. 580-596.

Risley, J.C., Stonewall, A., and Haluska, T., 2008, Estimating flow-duration and low-flow frequency statistics for unregulated streams in Oregon: U.S. Geological Survey Scientific Investigations Report 08-5126, 23 p.

Risley, J.C., Hess, G.W., and Fisher, B.J., 2006b, An assessment of flow data from Klamath River sites between Link River Dam and Keno Dam, south-central Oregon: U.S. Geological Survey Scientific Investigations Report 06-5212, 28 p.

Risley, J.C. and Hay, L., 2006, Evaluation of Ensemble Streamflow Prediction Forecasts for the Upper Klamath River Basin Conditioned on Climate Indicators in the Upper Klamath Basin, Oregon and California: Proceedings to the 3rd Federal Interagency Hydrologic Modeling Conference, Reno, Nevada, 8 p.

Risley, J.C, Walder, J.S., and Denlinger, R.P, 2006a, Usoi DamWave Overtopping and Flood Routing in the Bartang and Panj Rivers, Tajikistan: Springer Netherlands, Natural Hazards, Dordrecht , The Netherlands, p. 375-390.

Risley, J.C., and Gannett, M.W., 2006, An Evaluation and Review of Water Use Estimates and Flow Data for the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California: U.S. Geological Survey Scientific Investigations Report 06-5036, 28 p.

Risley, J.C., Gannett, M.W., Lea, J.K., and Roehl, E.A., 2005, An Analysis of Statistical Methods for Seasonal Flow Forecasting in the Upper Klamath River Basin of Oregon and California: U.S. Geological Survey Scientific Investigations Report 05-5177, 44 p.

Risley, J.C., 2004, Floods of November 1996 through January 1997 in the Umpqua River Basin, Oregon: U.S. Geological Survey Fact Sheet FS-2004-3134, 6 p.

Poole, G.C., Dunham, J.B., Keenan, D.M., Sauter, S.T., McCullough, D.A., Mebane, C., Lockwood, J.C., Essig, D.A., Hicks, M.P., Sturdevant, D.J., Materna, E.J., Spalding, S.A., Risley, J.C., and Deppman, M., 2004, The Case for Regime-based Water Quality Standards, Bioscience, vol. 54, no. 2, pp. 155-161.

Risley, J.C, Walder, J., and Denlinger, R., 2003, Usoi Dam wave overtopping and flood routing in the Bartang and Panj Rivers, Tajikistan: U.S. Geological Survey Water-Resources Investigations Report 03-4004, 29 p.

Risley, J.C., 2003, Guest Editor for Hydrological Science and Technology, vol. 19, no. 1-4: American Institute of Hydrology, ISSN 0887-686X.

Poole G.C., Dunham, J.B., Hicks, M.P., Keenan, D.M., Lockwood, J.C., Materna, E.J., McCullough, D.A., Mebane, C., Risley, J.C., Sauter, S.T., Spalding, S.A., and Sturdevant, D.J., 2001, Technical Synthesis: Scientific Issues Relating to Temperature Criteria for Salmon, Trout, and Char Native to the Pacific Northwest. Seattle: U.S. Environmental Protection Agency Report no.EPA-910-R-01-007.

Poole, G., Risley, J.C., and Hicks, M., 2001, Issue Paper 3: Spatial and Temporal Patterns of Stream Temperature: Seattle: U.S. Environmental Protection Agency Report no.EPA-910-D-01-003.

Lynch, D.D. and Risley, J.C., 2003, Klamath River Basin Hydrologic Conditions Prior to the September 2002 Die-Off of Salmon and Steelhead: U.S. Geological Survey Water-Resources Investigations Report 03-4099, 10 p.

Conlon, T., Lee, K., and Risley, J., 2003, Heat Tracing in streams in the central Willamette Basin, Oregon, in. Stonestrom, D. and Constanz, J., 2003, Heat as a Tool for Studying the Movement of Ground Water Near Streams: U.S. Geological Survey Circular 1260, 96 p.

Risley, J.C. and Roehl, E.A., 2002, Using Artificial Neural Network Models to Estimate Water Temperatures in Small Streams in Western Oregon: Proceedings to the 2nd Federal Interagency Hydrologic Modeling Conference, July-August 2002, Las Vegas, Nevada

Risley, J.C., Roehl, E.A., and Conrads, P., 2002, Estimating Water Temperatures in Small Streams in Western Oregon Using Neural Network Models: U.S. Geological Survey Water-Resources Investigations Report 02-4218, 60 p.

Ely, D.M., and Risley, J.C., 2001, Use of precipitation -runoff model to simulate natural streamflow conditions in the Methow River Basin, Washington: U.S. Geological Survey Water-Resources Investigations Report 01-4198, 36p.

Lee, K.K. and Risley, J.C., 2001, Estimates of Ground-Water Recharge, Base Flow, and Stream Reach Gains and Losses in the Willamette River Basin, Oregon: U.S. Geological Survey Water-Resources Investigations Report 01-4215, 52 p.

Risley, J.C. and Conlon, T., 2000, Using Miniature Temperature Data Loggers in the Oregon District: USGS WRD Instrument News, 2 p.

Risley, J.C., 2000, Effects of Hypothetical Management Scenarios on Simulated Water Temperatures in the Tualatin River, Oregon: U.S. Geological Survey Water-Resources Investigations Report 00-4071, 110 p.

Risley, J.C., and Laenen, A., 1999, Upper Klamath Lake Basin Nutrient-Loading Study-- Assessment of Historic Flows in the Williamson and Sprague Rivers: U.S. Geological Survey Water-Resources Investigations Report 98-4198, 22 p.

Risley, J.C., 1997, Relations of Tualatin River Water Temperatures to Natural and Human-Caused Factors: U.S. Geological Survey Water-Resources Investigations Report 97-4071, 143 p.

McCarthy, K.A., Risley, J.C., Caldwell, R.R., and McFarland, W.D., 1997, Assessment of the Water Resources of the Grand Ronde Area, Oregon: U.S. Geological Survey Water- Resources Investigations Report 97-4040, 27 p.

Laenen, A., and Risley, J.C., 1997, Precipitation-Runoff and Streamflow-Routing Models for the Willamette River Basin, Oregon: U.S. Geological Survey Water-Resources Investigations Report 95-4284, 70 p.

Risley, J.C., and Doyle, M.C.,1997, Water-Temperature, Specific Conductance, and Meteorological Data for the Tualatin River Basin, Oregon, 1994-95: U.S. Geological Survey Open-File Report 96-315, 124 p.

Laenen, A. and Risley, J.C., 1997, Precipitation-Runoff and Streamflow-Routing Model as a Foundation for Water-Quality Simulation in the Willamette River Basin, Oregon, in Laenen A. and Dunnette, D.A., River Quality-Dynamics and Restoration: New York, CRC Press, pp. 117-130.

Shanley, J.B., Strause, J.L., and Risley, J.C., 1995, Effects of Selective Clearing on the Hydrology and Water-Quality of a Small Tributary to the Quabbin Reservoir, Central Massachusetts: U.S. Geological Survey Water-Resources Investigation Report 95-4124, 57 p.

Risley, J.C., 1994, Estimating the Magnitude and Frequency of Low Flows of Streams in Massachusetts: U.S. Geological Survey Water Resources Investigation Report 94-4100, 29 p.

Risley, John and Shanley, J.B., 1994, Effects of Storm Paths on Precipitation Chemistry, and Variations of Within-Storm Chemistry during Selected Storms in Central Massachusetts, 1986-87: U.S. Geological Survey Water Resources Investigation Report 94-4084, 34 p.

Risley, J.C., and Laenen, A., 1994, Simulating Effects of Timber Harvesting on Streamflow in the Oregon Coast Range Using Watershed Modeling, in American Water Resources Association Conference, Annual Summer Symposium, Jackson Hole, Wyoming, 1994, Proceedings, p. 245-254.

Risley, J.C., 1993, Use of a Precipitation-Runoff Model for Simulating Effects of Forest Management on Streamflow in 11 Small Drainage Basins, Oregon Coast Range: U.S. Geological Survey Water Resources Investigation Report 93-4181, 61 p.

Nakama, L.Y., and Risley, J.C., 1993, Use of a Rainfall-Runoff Model for Simulating Effects of Forest Management on Streamflow in the East Fork Lobster Creek Basin, Oregon: U.S. Geological Survey Water Resources Investigation Report 93-4040, 40 p.

Risley, J.C., Guertin, D.P., and Fogel, M.M., 1993, A Salinity Intrusion Forecasting System for the Gambia River Estuary: American Society of Civil Engineers Journal of Water Resources Planning and Management, May/June 1993, Vol. 119, No. 3, p. 339- 352.

Risley, J.C., 1991, Application of Generalized-Least-Squares Regression to Estimate Flow-Duration Statistics in Massachusetts, in American Water Resources Association Conference, 27th, New Orleans, La., 1991, Proceedings, p. 435-438.

Risley, J.C., 1989, Predicting Runoff and Salinity Intrusion Using Stochastic Precipitation Inputs: Tucson, Arizona, University of Arizona, Ph.D. Dissertation, 193 p., 19 figs.

Risley, J.C., and Cluff, C.B., 1988, Crop Consumptive Use Simulation Using a Water Harvesting Model, in American Geophysical Union Hydrology Days Conference, 8th, Fort Collins, Colo., 1988, Proceedings, p. 56-68.

Risley, J.C., 1987, - Applications of the SSARR (Streamflow Synthesis and Reservoir Regulation) Model in the Gambia River Basin: Washington, D.C., U.S. Agency for International Development Project 625-0012, Technical Document 12, 73 p.

Risley, J.C., 1986, Preliminary SSARR Large Structure Scenario Simulations: Washington, D.C., U.S. Agency for International Development Project 625-0012, Technical Document 6, 33 p.

Risley, J.C., 1986, A User's Guide to the OMVG Hydrometeorological Data Bank: Washington, D.C., U.S. Agency for International Development Project 625-0012, Technical Document 5, 34 p.

Risley, J.C., 1984, The Calibration of a Water Harvesting Computer Model: Tucson, Arizona, University of Arizona, M.S. Thesis, 127 p., 3 figs.

 

 




                           

My Science Topics


Science Topic
Subtopic
Natural Hazardsfloods
Hydrologic Processeshydrology
Environmental Issuessurface water quality
Water Resourcessurface water
Ecology and Environmentecological processes
Atmosphere and Climateclimate change
Techniques and Methodsstatistical analysis



My USGS Science Strategy Areas

Climate Variability & Change

Understanding Ecosystems & Predicting Ecosystems Change

Surface-water hydrology


Contact Information

John Risley
2130 SW 5th Avenue
Portland, OR 97201
jrisley@usgs.gov
503-251-3279
503-251-3470 - Fax
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