Fluvial geomorphology; Hydraulics; Hydrology; Water-resources engineering; River mechanics; Sediment transport; Surface-water modeling; Debris flows; Mountain p icon

Fluvial geomorphology; Hydraulics; Hydrology; Water-resources engineering; River mechanics; Sediment transport; Surface-water modeling; Debris flows; Mountain p



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Christopher Magirl



U.S. Geological Survey

934 Broadway

Suite 300

Tacoma, Washington 98402


Phone: 253-552-1617


Email: magirl@usgs.gov



Research Interests


Fluvial geomorphology; Hydraulics; Hydrology; Water-resources engineering; River mechanics; Sediment transport; Surface-water modeling; Debris flows; Mountain processes; flooding


Areas of Expertise


Flow instrumentation; Computational fluid dynamics; Hydraulic modeling; Computer programming (C/C++, Fortran, Perl), Field survey; Geographic information systems (GIS); Product-development management; Manufacturing engineering


EdUCATION


Ph.D. (2006) Hydrology (minor in Geology), The University of Arizona, Tucson, Arizona

“Bedrock-controlled fluvial geomorphology and the hydraulics of rapids on the Colorado River”

M.S. (1992) Mechanical Engineering, Purdue University, West Lafayette, Indiana

“Experimental and numerical investigation of solidification of aqueous ammonium chloride”

B.S. (1990) Aerospace Engineering, The University of Arizona, Tucson, Arizona


Professional Overview


Research Hydrologist

U.S. Geological Survey, Tacoma, Washington. September 2009 – present

  • Analyzing sediment load and geomorphic response of rivers downstream of glaciated volcanoes.

  • Leading a team analyzing geomorphology, scour, and ecologic responses in salmon-bearing rivers.

  • Researching fluvial sediment flux in Pacific Northwest rivers.

  • Researching geomorphic response of rivers following dam removal.

  • Researching the sediment transport of asbestos fibers in flowing water.


Hydrologist

U.S. Geological Survey, Tacoma, Washington. July 2008 – September 2009

  • Developed geomorphic and GIS methodology to determine navigability potential in Washington rivers.

  • Completed sedimentation analysis into Moses Lake, Washington from fluvial, eolian, and biogenic sources.

  • Designed and built low-cost, low-energy solar desalinization loop in Chula Vista, California.


Hydrologist

U.S. Geological Survey, Tucson, Arizona. May 2000 – July 2008

  • Researched the complex formation, evolution, and hydraulics of rapids on bedrock-controlled rivers.

  • Analyzed debris flows and debris-flow processes in arid and mountainous regions from convective storms.

  • Developed numerical models to analyze fluid mechanics and geomorphology of fluvial systems.

  • Applied instrumentation (pitot tube, ADV, ADCP, fathometer) to study sediment transport and geomorphology.


Professional experience (cont’d)


Hydrologist

Self Employed, Tucson, Arizona. July 2004 – January 2007

  • Provided hydraulic modeling expertise for restoration ecology work on riparian ecosystems.

  • Built several HEC-RAS models for riparian streams and rivers in the Southwest.


Civil Engineer, EIT

Tetra Tech, Inc., Tucson, Arizona. May 2000 – November 2000

  • Used HEC-1, HEC-2, and HEC-RAS to simulate 100-year discharge within Maricopa County.

  • Completed a similar design and analysis of the flood-prone Earp Wash in Pima County, Arizona.


Project Manager

Hewlett-Packard Company, San Diego, California. August 1997 – August 1999

  • Led a cross-functional business team in the development of new business opportunities.

  • Recruited and managed a highly skilled and responsive team of 8 engineers and 3 technicians exploring printing opportunities outside traditional Hewlett-Packard markets.

  • Managed development team to design Hewlett-Packard’s first Internet Appliance Printer, the e-Printer, a revolutionary, low-cost, low-profile printer that yielded more than 30 patents for HP.


Hardware Design Engineer

Hewlett-Packard Company, San Diego, California. April 1996 – August 1997

  • Investigated the application of thermal inkjet printing in medical imaging and pre-press proofing.

  • Worked closely with customers and partner divisions creatively applying HP technology to new target markets.


Development/Manufacturing Engineer

Hewlett-Packard Company, San Diego, California. August 1992 – April 1996

  • Contributed to the research team delivering the world’s first 600-dpi, drop-on-demand inkjet cartridge.

  • Saved millions of dollars in production costs with landmark print quality study characterizing defects.


Research Assistant

Purdue University, West Lafayette, Indiana. August 1990 – July 1992

  • Characterized and improved casting processes of binary alloys used in high-performance applications.

  • Applied multiphase CFD model and data-collection techniques to characterize the solidification.


registration


1990 Passed the Engineer-in-Training Exam, Arizona, #900140


Teaching and Mentoring experience


2012 Guest Lecturer in TESC 319, Water Quality Concepts and Watershed Studies, Univ. of Wash.-Tacoma

2008 Guest Lecturer in GEOS 596c, Fluvial Geomorphology, University of Arizona

2003 Assisted in the instruction of GEOS 650, Field Studies in Geomorphology, University of Arizona

2001–2007 Mentored four M.S. students and two B.S. students working on geomorphology projects at the USGS

1994–1995 Manufacturing Processes Instructor, Thermal Inkjet University, Industrial Course, Hewlett-Packard

1993–1999 Mentored a number of engineers (including my development team) at Hewlett-Packard


Publications


Czuba, J.A., C.S. Magirl, C.R. Czuba, C.A. Curran, K.H. Johnson, T.D. Olsen, H.K. Kimball, and C.C. Gish, 2012, “Geomorphic analysis of the river response to sedimentation downstream of Mount Rainier, Washington,” U.S. Geological Survey Open-File Report 2012-1242, 134 p.

Gendaszek, A.S., C.S. Magirl, and C.R. Czuba, 2012, “Geomorphic response to flow regulation and channel and floodplain alteration in the gravel-bedded Cedar River, Washington, USA,” Geomophology, Vol. 179, pp. 258-268, doi:10.1016/j.geomorph.2012.08.017.

Magirl, C.S., A.S. Gendaszek, C.R. Czuba, C.P. Konrad, and M.D. Marineau, 2012, “Geomorphic and hydrologic study of peak-flow management on the Cedar River, Washington,” U.S. Geological Survey Open-File Report 2012-1240.

Warrick, J.A., J.J. Duda, C.S. Magirl, and C.A. Curran, 2012, “River turbidity and sediment loads during dam removal,” ^ Eos Transactions, American Geophysical Union, Vol. 93, No. 43, pp. 425-426.

Gendaszek, A.S., C.S. Magirl, C.P. Konrad, C.R. Czuba, and M.D. Marineau, 2012, “Using buried accelerometers to measure the timing of bed movement, scour, and fill in gravel-bedded rivers,” in proceedings 2012 Hydraulic Measurements and Experimental Methods Conference, Snowbird, Utah, 12-15 August, 2012, 6 p.

Marineau, M.D., A.S. Gendaszek, ^ C.S. Magirl, C.R. Czuba, and J.A. Czuba, 2012, “Surrogate bedload monitoring using hydrophones in the gravel-bedded Cedar River, Washington,” in proceedings 2012 Hydraulic Measurements and Experimental Methods Conference, Snowbird, Utah, 12-15 August, 2012, 6 p.

Czuba, J.A., T.D. Olsen, C.R. Czuba, ^ C.S. Magirl, and C.C. Gish, 2012, “Changes in sediment volume in Alder Lake, Nisqually River Basin, Washington, 1945-2011,” U.S. Geological Survey Open-File Report 2012-1068, 30 p.

Carpenter, K.D., C.R. Czuba, C.S. Magirl, M.D. Marineau, S. Sobieszczyk, J.A. Czuba and M.K. Keith, 2012, “Geomorphic Setting, Aquatic Habitat, and Water-Quality Conditions of the Molalla River, Oregon, 2009–10,” ^ U.S. Geological Survey Scientific Investigations Report 2012-5017, 78 p.

Duda, J.J., Warrick, J.A., and Magirl, C.S., (editors) 2011, “Coastal habitats of the Elwha River, Washington—Biological and physical patterns and processes prior to dam removal,” U.S. Geological Survey Scientific Investigations Report 2011–5120, 264 p.

^ Magirl, C.S., Curran, C.A., Sheibley, R.W., Warrick, J.J., Czuba, J.A., Czuba, C.R., Gendaszek, A.S., Shafroth, P.B., Duda, J.J., and Foreman, J.R., 2011, “Baseline hydrologic studies in the lower Elwha River prior to dam removal,” chap. 4 of Duda, J.J., Warrick, J.A., and Magirl, C.S., eds., Coastal habitats of the Elwha River, Washington—Biological and physical patterns and processes prior to dam removal: U.S. Geological Survey Scientific Investigations Report 2011–5120, p. 75-110.

Duda, J.J., Warrick, J.A., and Magirl, C.S., 2011, “Coastal and lower Elwha River, Washington, prior to dam removal—History, status, and defining characteristics,” chap. 1 of Duda, J.J., Warrick, J.A., and Magirl, C.S., eds., Coastal habitats of the Elwha River, Washington—Biological and physical patterns and processes prior to dam removal: U.S. Geological Survey Scientific Investigations Report 2011-5120, p. 1-26.

Czuba, C.R., Randle, T.J., Bountry, J.A., ^ Magirl, C.S., Czuba, J.A., Curran, C.A., and Konrad, C.P., 2011, “Anticipated sediment delivery to the lower Elwha River estuary during and following dam removal,” chap. 2 of Duda, J.J., Warrick, J.A., and Magirl, C.S., eds., Coastal habitats of the Elwha River, Washington—Biological and physical patterns and processes prior to dam removal: U.S. Geological Survey Scientific Investigations Report 2011-5120, p. 27-46.

Warrick, J.A., Draut, A.E., McHenry, M.L., Miller, I.M., ^ Magirl, C.S., Beirne, M.M., Stevens, A.W., and Logan, J.B., 2011, “Geomorphology of the Elwha River and its delta,” chap. 3 of Duda, J.J., Warrick, J.A., and Magirl, C.S., eds., Coastal habitats of the Elwha River, Washington—Biological and physical patterns and processes prior to dam removal: U.S. Geological Survey Scientific Investigations Report 2011–5120, p. 47-74.

Czuba, J.A., Magirl, C.S., Czuba, C.R., Grossman, E.E., Curran, C.A., Gendaszek, A.S., and Dinicola, R.S., 2011, “Sediment load from major rivers into Puget Sound and its adjacent waters,” ^ U.S. Geological Survey Fact Sheet 2011-3083, 4 p.

Duda, J.J., Warrick, J.A., and Magirl, C.S., 2011, “Elwha River dam removal--Rebirth of a river,” U.S. Geological Survey Fact Sheet 2011-3097, 4 p.

Czuba, J.A., Czuba, C.R., Magirl, C.S., and Voss, F.D., 2010, “Channel-conveyance capacity, channel change, and sediment transport in the lower Puyallup, White, and Carbon Rivers, western Washington,” ^ U.S. Geological Survey Scientific Investigations Report 2010–5240, 104 p.

Magirl, C.S., and Andersen, M.E., 2010, “Water velocity of the Colorado River: Implications for native fishes,” in Melis, T.S., Hamill, J.F., Coggins, L.G., Jr., Grams, P.E., Kennedy, T.A., Kubly, D.M., and Ralston, B.E., eds., Proceedings of the Colorado River Basin Science and Resource Management Symposium, November 18–20, 2008, Scottsdale, Arizona: U.S. Geological Survey Scientific Investigations Report 2010–5135, pp. 177-183.

Magirl, C.S., Griffiths, P.G., and Webb, R.H., 2010, “Analyzing debris flows with the statistically calibrated empirical model LAHARZ in southeastern Arizona, USA,” Geomorphology, 119, pp. 111-124, doi:10.1016/j.geomorph.2010.02.022.

Magirl, C.S., Connolly, P.J., Coffin, B., Duda, J.J., Curran, C.A., and Draut, A.E., 2010, “Sediment management strategies associated with dam removal in the State of Washington,” in Proceedings of the Joint Federal Interagency Conference, J.M. Bernard and J.W. Webb (eds.), Las Vegas, NV, June 28 - July 1, 2010, 10 p.

Magirl, C.S., Cox, S.E., Mastin, M.C., and Huffman, R.L., 2010, “Sediment loading from Crab Creek and other sources to Moses Lake, Washington, 2007 and 2008,” ^ U.S. Geological Survey Scientific Investigations Report 2010-5001, 20 p.

Magirl, C.S., R.J. Julich, W.B. Welch, C.R. Curran, M.C. Mastin, and J.J. Vaccaro, 2009, “Summary of seepage investigations in the Yakima River basin, Washington,” U.S. Geological Survey Data Series 473.

Griffiths, P.G., C.S. Magirl, R.H. Webb, E. Pytlak, P.A. Troch, and S.W. Lyon, 2009, “Spatial precipitation frequency of an extreme event: the July 2006 mesoscale convective complexes and floods in southeastern Arizona,” Water Resources Research, Vol. 45, W07419, doi:10.1029/2008WR007380.

^ Magirl, C.S., and T.D. Olsen, 2009, “Navigability potential of Washington rivers and streams determined with hydraulic geometry and a geographic information system,” U.S. Geological Survey Scientific Investigations Report 2009–5122, 22 p.

Magirl, C.S., J.W. Gartner, G.M. Smart, and R.H. Webb, 2009, “Water velocity and the nature of critical flow in large rapids on the Colorado River, Utah,” Water Resources Research, Vol. 45, W05427, doi:10.1029/2009WR007731.

Webb, R.H., Magirl, C.S., Griffiths, P.G., Youberg, A., and Pearthree, P.A., 2008, “Slopes fail, debris flows in extremis,” Southwest Hydrology, Vol. 7, p. 8.

Webb, R.H., C.S. Magirl, P.G. Griffiths, and D.E. Boyer, 2008, “Debris flows and floods in southeastern Arizona from extreme precipitation in July 2006; magnitude, frequency, and sediment delivery,” ^ U.S. Geological Survey Open-File Report 2008-1274, 95 p.

Magirl, C.S., M.J. Breedlove, R.H. Webb, and P.G. Griffiths, 2008, “Modeling Water-Surface Elevations and Virtual Shorelines for the Colorado River in Grand Canyon, Arizona,” U.S. Geological Survey Scientific Investigation Report 2008-5075, 32 p.

Blainey, J.B., R.H. Webb, and C.S. Magirl, 2007, “Modeling the spatial and temporal variation of monthly and seasonal precipitation on the Nevada Test Site,” 19602006: U.S. Geological Survey Open-File Report 2007-1269, 40 p.

^ Magirl, C.S., G.M. Smart, J.W. Gartner, and R.H. Webb, 2007, “Techniques and instrumentation for measuring flow in high-gradient rivers,” in Cowin, E.A. and D.F. Hill (editors), 2007 Hydraulic Measurements & Experimental Methods Conference: Lake Placid, New York, September 10-12, American Society of Civil Engineers, pp. 454459.

^ Magirl, C.S., R.H. Webb, M. Schaffner, S.W. Lyon, P.G. Griffiths, C. Shoemaker, C.L. Unkrich, S. Yatheendradas, P.A. Troch, E. Pytlak, D.C. Goodrich, S.L.E. Desilets, A. Youberg, and P.A. Pearthree, 2007, “Impact of recent extreme Arizona storms,” Eos Transactions, American Geophysical Union, Vol. 88, No. 17, pp. 191, 193.

^ Magirl, C.S., C. Shoemaker, R.H. Webb, M. Schaffner, P.G. Griffiths, E. Pytlak, 2007, “Debris flows and record floods from extreme mesoscale convective thunderstorms over the Santa Catalina Mountains, Arizona,” U.S. Geological Survey Open-File Report 2007-1108, 1 sheet.

^ Magirl, C.S., P.G. Griffiths, and R.H. Webb, 2006, “ADV point measurements within rapids of the Colorado River in Grand Canyon,” in Graham, R. (editor), Examining the Confluence of Environmental and Water Concerns, Proceedings of the 2006 World Environmental and Water Resources Congress, Omaha, Nebraska, May 2125, 2006: Reston, Virginia, American Society of Civil Engineers Publication, 10 p.

Yanites, B.J., R.H. Webb, P.G. Griffiths, and ^ C.S. Magirl, 2006, “Debris flow deposition and reworking by the Colorado River in Grand Canyon, Arizona.” Water Resources Research, Vol. 42, No. 11, W11411, doi:10.1029/2005WR004847.

Webb, R.H., P.G. Griffiths, C.S. Magirl, and T.C. Hanks, 2005, “Debris flows in Grand Canyon and the rapids of the Colorado River,” in Gloss, S.P., Lovich, J.E., and Melis, T.S. (eds.), The State of the Colorado River Ecosystem in Grand Canyon: U.S. Geological Survey Circular 1282, pp. 139152.

Magirl, C.S., R.H. Webb, and P.G. Griffiths, 2005, “Changes in the water surface profile of the Colorado River in Grand Canyon, Arizona, between 1923 and 2000,” Water Resources Research, Vol. 41, No. 5, W05021, doi:10.1029/2003WR002519.

Magirl, C.S. and F.P. Incropera, 1995 “Effect of mold oscillation on convection and macrosegregation for unidirectional solidification from below,” Proceedings of Fourth ASME/JSME Thermal Engineering Conference, Maui, Hawaii, March 19-24, Vol. 4, pp. 3339.

Magirl, C.S. and F.P. Incropera, 1994, “Multidirectional solidification of an aqueous ammonium chloride solution,” ^ Proceedings Tenth International Heat Transfer Conference, G.F. Hewitt, Ed., Taylor and Francis Publishers, Brighton, England, Vol. 4, pp. 7984.

Magirl, C.S. and F.P. Incropera, 1993, “Flow and morphological conditions associated with unidirectional solidification of aqueous ammonium chloride,” ASME Transactions, ^ J. Heat Transfer, Vol. 115, pp. 10361043.

Magirl, C.S. and F.P. Incropera, 1992, “Flow and morphological conditions associated with unidirectional solidification of aqueous ammonium chloride,” in Topics in Heat Transfer, ASME HTD-Vol. 206-1, pp. 110, M. Keyhani, P.G. Simpkins, R.H. Pletcher, R.S. Amano, and B.F. Armaly, Eds., Twenty-Ninth National Heat Transfer Conference, San Diego, August 69.


INVITED tALKS


Magirl, C.S., J.A. Czuba, C.R. Czuba, and C.A. Curran, 2012 “Sharing the rivers: Balancing the needs of people and fish against the backdrop of heavy sediment loads downstream from Mount Rainier, Washington,” ^ American Geophysical Union, Fall Meeting 2012, #GC22C-05, San Francisco, California, 3-7 December.

Duda, J.J., J.R. McMillan, R. Moses, M. McHenry, G.R. Pess, S. Brenkman, R. Peters, M. Zimmerman, J.A. Warrick, C.A. Curran, C.S. Magirl, M. Beirne, and S. Rubin, 2012, “First-year dam removal activities in the Elwha River – dam removal, sediment dispersal, and fish relocations,” American Geophysical Union, Fall Meeting 2012, #EP54C-03, San Francisco, California, 3-7 December.

Kennard, P., ^ C. Magirl, T. Abbe, S. Beason, J.A. Czuba, C.R. Czuba, and C.A. Curran, 2012, “Goats to Geoducks: Landscape response to climate change from the summit of Mount Rainier to Puget Sound,” Northwest Geological Society, Seattle, WA, 9 October.

Kennard, P.M., S. Beason, T. Abbe, T., and ^ C.S. Magirl, 2012, "Climate Change, Rising Rivers, and the Future of Mount Rainier", invited keynote presentation to the 2012 Mount Rainier All-Tribal Meeting, Mount Rainier National Park, Ashford, WA, 22 May.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” ^ USGS Water Mission Area 2011 Lectureship Series, Reston, VA, November 17, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” USGS Water Mission Area 2011 Lectureship Series, Richmond, VA, November 16, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” USGS Water Mission Area 2011 Lectureship Series, Indianapolis, IN, October 26, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” USGS Water Mission Area 2011 Lectureship Series, Minneapolis, MN, October 25, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” ^ USGS Water Mission Area 2011 Lectureship Series, Helena, MT, October 19, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” Oregon State University Graduate Water Resources Program Seminar Series: Water Resources Research—At the Interface of Science and Policy, Corvallis, OR, October 12, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Tools to assess geomorphic response of rivers subject to rapid change in sedimentation: A case study on rivers draining Mount Rainier, Washington,” ^ USGS Water Mission Area 2011 Lectureship Series, Atlanta, GA, September 22, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.M. Kennard, 2011, “Tools to assess geomorphic response of rivers subject to rapid change in sedimentation: A case study on rivers draining Mount Rainier, Washington,” USGS Water Mission Area 2011 Lectureship Series, Raleigh, NC, September 20, 2011.

Magirl C.S. and Kennard, P.M., 2011, “Goats to Geoducks: Sedimentation in Rivers draining Mount Rainier,” Sediment Management Issues Group of the Washington Association of Floodplain Management, Tacoma, WA, August 11, 2011.

Magirl, C.S., J.A. Czuba, and C.R. Czuba, 2011, “River Aggradation in the Puget Lowland,” Climate Change Impacts on Water Resources in the Pacific Northwest: Symposium sponsored by Sustainable Seattle, Seattle, Washington, May 12, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P.S. Kennard, 2011, “Geomorphic Response of the White River Downstream from Mud Mountain Dam: Living with river draining volcanoes,” ^ Presentation to the Army Corps of Engineers, Seattle District, Seattle, WA, 15 March 2011.

Curran, C.A., A.E. Draut, and C.S. Magirl, 2009, “Sediment Transport and Fluvial Geomorphology on the Elwha River,” Northwest Scientific Association 81st Annual Meeting, March 25-28, 2009, Seattle, Washington.

Magirl, C.S., R.H. Webb, P.G. Griffiths, 2007, “Debris Flows from Extreme Convective Precipitation in a Semi-Arid Mountainous Region,” ^ Geological Society of America Abstracts with Programs, v. 39(6), p. 180, Denver, CO.

Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” The Menudo Society, Tucson, Arizona, August 14.

Magirl, C.S., 2007, “Rapids on the Colorado River,” Meeting of the Southern Arizona Paddlers Club, Tucson, Arizona, May 14.

Magirl, C.S., 2007, “Summary of Coarse-Grained Sediment Modeling Efforts in Grand Canyon,” GCMRC’s Sediment Transport Modeling Review and Workshop, Santa Cruz, California, February 16.

Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” Brown Bag Seminar at the US Geological Survey, Flagstaff, Arizona, March 8.

Magirl, C.S., J.W. Gartner, P.G. Griffiths, and R.H. Webb, 2007, “Coarse-Grained Sediment in Grand Canyon,” ^ Morning Colloquium at the US Geological Survey, Flagstaff, Arizona, March 8.

Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” Southern Arizona Branch of the American Society of Civil Engineers, Tucson, Arizona, February 14.

Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Southern Arizona Floods and Debris Flows during the Summer of 2006,” Cascades Volcano Observatory Lunch Colloquium, Portland, Oregon, February 8.

Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2006, “Floods and Debris Flows in the Catalina Front Range,” ^ Arizona Chapter of the American Public Works Association, Tucson, Arizona, November 16.


Other Delivered Presentations


Magirl, C.S., and C.A. Curran, 2012, “Suspended-sediment load in the lower Elwha River, Washington, during early stages of dam decommissioning,” ^ American Geophysical Union, Fall Meeting 2012, #EP13E-0890, San Francisco, California, 3-7 December.

Magirl, C.S., P.M. Kennard, J.A. Czuba, C.R. Czuba, and C.A. Curran, 2012, “Rivers from Mount Rainier to Puget Sound,” Tacoma Science Café produced by Pacific Science Center and KTCS 9, Tacoma, Washington, 13 November.

Magirl, C.S., P.M. Kennard, C.A. Curran, J.A. Czuba, and C.R. Czuba, 2012, “Sediment loads and sources affecting rivers draining Mount Rainier, Washington,” ^ Seminar to the Washington Department of Natural Resources Geology and Earth Resources Division, Olympia, Washington, 5 November.

Carpenter, K., and C.S. Magirl, 2012, “Geomorphic setting, aquatic habitat, and water-quality conditions of the Molalla River, Oregon, 2009–10,” ^ Pudding River Basin-Technical Advisory Committee (PRB-TAC) Meeting, Woodburn, Oregon, 10 October.

Magirl, C.S., J.A. Czuba, C.R. Czuba, C.A. Curran, and P.M. Kennard, 2012, “Sediment loads and sources affecting rivers draining Mount Rainier, Washington,” Oregon Water Science Center Fall 2012 Seminar Series, Portland, Oregon, 9 October.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and C.A. Curran, 2012, “Sediment loads and sources affecting rivers draining Mount Rainier, Washington,” ^ 2012 Annual Conference of the Northwest Regional Floodplain Management Association, Spokane, WA, 18-21 September.

Magirl, C.S., A.S. Gendaszek, C.R. Czuba, and C.P. Konrad, 2012, “Geomorphic and hydrologic study of peak-flow management on the Cedar River, Washington,” ^ King County Lunch Seminar Series, Seattle, WA, 18 September.

Magirl, C.S., C.A. Curran, and C.P. Konrad, 2012, “Suspended-sediment load in the lower Elwha River during early stages of dam decommissioning,” 2012 Elwha River Science Symposium, Lake Crescent, WA, 22-23 August.

Magirl, C.S., J.J. Duda, J.A. Warrick, M. Beirne, and G. Gelfenbaum, 2012, “Elwha River restoration: Sediment transport and ecosystem response,” ^ Puget Sound Federal Caucus Executive Meeting, Everett, WA, 9 August.

Magirl, C.S., A.S. Gendaszek, C.R. Czuba, and C.P. Konrad, 2012, “Insights for Cedar River peak-flow management: Geomorphology and gravel-scour studies,” Seattle Public Utilities Science Brown Bag, Seattle, WA, 7 August.

Magirl, C.S., J.A. Czuba, C.R. Czuba, C.A. Curran, K.H. Johnson, P.M Kennard, T.D. Olsen, H. Kimball, and C.C. Gish, 2012, “Goats to Geoducks: The journey of water and sediment from Mount Rainier to Puget Sound,” ^ Workshop on Managed Rivers in Western Washington, Tacoma, WA, 23 May.

Magirl, C.S., J.A. Czuba, C.R. Czuba, C.A. Curran, K.H. Johnson, P.M Kennard, T.D. Olsen, H. Kimball, and C.C. Gish, 2012, “Goats to Geoducks: The journey of water and sediment from Mount Rainier to Puget Sound,” ^ Workshop on Managed Rivers in Western Washington, Tacoma, WA, 23 May.

Magirl, C.S., J.A. Czuba, C.R. Czuba, C.A. Curran, K.H. Johnson, T.D. Olsen, H. Kimball, and C.C. Gish, 2012, “Geomorphic response of rivers downstream from retreating glaciers on Mount Rainier, Washington,” ^ Nisqually River Council Meeting, Eatonville, WA, 18 May.

Magirl, C.S., C.A. Curran, C.R. Czuba, S.E. Cox, and J.A. Czuba, 2012, “Preliminary sediment load and concentration estimates for the Sumas River, April 2011-April 2012,” 3rd Annual Asbestos Workshop—Scientific Issues Associated with the Swift Creek Landslide and Impacts on the Sumas River, Vancouver, British Columbia, 15 May.

^ Magirl, C.S., C.A. Curran, C.R. Czuba, and M.D. Marineau, 2011, “Monitoring of Suspended-Sediment Load in the Lower Elwha River, Washington, USA, during the First Two Years of Dam Removal,” Elwha River Science Symposium, Port Angeles, WA, September 15-16, 2011.

Magirl, C.S., J.A. Czuba, C.R. Czuba, and P. Kennard, 2011, “Geomorphic response of rivers to glacial retreat and increasing peak flows downstream from Mount Rainier, Washington,” ^ National Research Program Seminar Series, Denver, Colorado, January 18, 2011

Magirl C.S., 2010, “Analyzing Clues in River Evolution of the Bedrock-Controlled Colorado River using Hydraulic Modeling,” American Geophysical Union, Fall Meeting 2010, #EP43B-0750, San Francisco, California, 13-17 December.

^ Magirl, C.S., Czuba, J.A., Barnas, C.R., and F. Voss, 2010, “Fluvial sedimentation from Mount Rainier: Impacts on Puget Lowland rivers,” Nisqually River Council Meeting, Ashford, Washington, July 16, 2010.

Magirl, C.S., Connolly, P.J., Coffin, B., Duda, J.J., Curran, C.A., and Draut, A.E., 2010, "Sediment management strategies associated with dam removal in the State of Washington," Joint Federal Interagency Conference (9th FISC and 4th FIHMC), Las Vegas, NV, June 28 - July 1, 2010.

Magirl, C.S., S.E. Cox, M.C. Mastin, and R. Huffman, 2010, “Sediment Budget of Moses Lake, Washington,” ^ Washington Hydrologic Society, Tacoma, Washington, March 17, 2010.

Magirl, C.S., R. Little, C.P. Konrad, A.S. Gendaszek, and C.R. Barnas, 2009, “Development of an adaptive approach to managing peak flows in the Cedar River, Washington,” 2009 AWRA Annual Water Resources Conference, Seattle, WA, 9-12 November.

Magirl, C.S., and C.W. Anderson, 2009, “The Science of Dam Removal in the Pacific Northwest,” ^ The Office of the Associate Director for Water Seminar, Reston, VA, 26 October.

Magirl, C.S., 2009, “Hydraulic and geomorphic response of the bedrock-controlled Colorado River to extreme floods,” U.S. Geological Survey Brown-Bag Seminar, Tacoma, Washington, February 5.

Magirl, C.S., 2009, “Hydraulic and geomorphic response of the bedrock-controlled Colorado River to extreme floods,” ^ U.S. Geological Survey Brown-Bag Seminar, Portland, Oregon, January 27.

Magirl, C.S., and M.E. Andersen, 2008, “Velocity distribution in the pools and rapids of the Colorado River and the impact on aquatic ecology,” Colorado River Basin Science and Resource Management Symposium, November 18-20, 2008, Scottsdale, Arizona.

Magirl, C.S., M.J. Breedlove, R.H. Webb, and P.G. Griffiths, 2008, “One-dimensional computer model and GIS tool set to predict river stage and inundation on the Colorado River in Grand Canyon,” ^ Colorado River Basin Science and Resource Management Symposium, November 18-20, 2008, Scottsdale, Arizona.

Magirl, C.S., 2008, “Rapids and big rocks: Fluvial geomorphology on the bedrock-controlled Colorado River,” Colorado School of Mines Department of Geology and Geologic Engineering Lecture, Golden, CO, May 1.

Magirl, C.S., J.W. Gartner, P.G. Griffiths, and R.H. Webb, 2008, “Bedrock-controlled rivers: The role of coarse-grained alluvium in governing fluvial geomorphology,” ^ U.S. Geological Survey Seminar, Tacoma, WA, April 10.

Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” The University of Arizona’s Department of Hydrology and Water Resources Seminar, Tucson, Arizona, March 21.

Magirl, C.S., C. Shoemaker, R.H. Webb, M. Schaffner, P.G. Griffiths, E. Pytlak, 2006, “Debris flows and record floods from extreme mesoscale convective thunderstorms over the Santa Catalina Mountains, Arizona,” AGU Fall Meeting, Abstract H21B-1370.

Magirl, C.S., E. Pytlak, R.H. Webb P.G. Griffiths, D.E. Boyer, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2006, “Floods and Debris Flows in the Catalina Front Range,” ^ Arizona Geological Society, Inc., Tucson, Arizona, November 14.

Magirl, C.S., Webb, R.H., P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Debris flows and Record Floods from Extreme Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona,” Southeast Arizona Chapter of the American Meteorological Society, Tucson, Arizona October 26.

Magirl, C.S., P.G. Griffiths, Webb, R.H., D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Floods and Debris flows in the Catalina Front Range,” Pima County Board of Supervisors Public Meeting, Tucson, Arizona, October 3.

Magirl, C.S., J.W. Gartner, P.G. Griffiths, R.H. Webb, T. Kenney, 2006, “Rapids in bedrock rivers: Hydraulic Monitoring and Modeling,” USGS Water Resources Research Seminar, Menlo Park, California, September 27.

Magirl, C.S., Webb, R.H., P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Floods and Debris flows in the Catalina Front Range,” ^ Quarterly meeting of the Society of American Foresters, Tucson, Arizona, September 21.

Magirl, C.S., J.W. Gartner, P.G. Griffiths, and R.H. Webb, 2006, “Rapids in bedrock rivers: Hydraulic Monitoring and Modeling,” Grand Canyon Monitoring and Research Center presents: Protocols Evaluation Program, Implementation of Long-Term Monitoring in the 21st Century, Flagstaff, Arizona, August 15-17.

Magirl, C.S., J.W. Gartner, P.G. Griffiths, R.H. Webb, and T. Kenney, 2006, “Rapids in bedrock rivers: Measurements and modeling of velocity distributions,” ^ USGS Seminar, USGS Headquarters, Reston, Virginia.

Magirl, C.S., J.W. Gartner, Griffiths, P.G., and R.H. Webb, 2006, “Velocity measurements in rapids on the Colorado River in Grand and Cataract Canyons, Arizona and Utah” ASCE World Water and Environmental Resources Congress 2006, Omaha, Nebraska.

Magirl, C.S., 2006, “Velocity measurements in rapids on the Colorado River in Grand Canyon,” ^ The Department of Hydrology and Water Resources’ El Dia del Agua 2006, the University of Arizona.

Magirl, C.S. and R.H. Webb, 2005, “Hydraulic response of Colorado River rapids to a reworking flood,” AGU Fall Meeting, H53B-0476.

Magirl, C.S., and M.J. Breedlove, 2005, “And improved STARS model: Predicted Colorado River water-surface elevations and virtual shorelines for flows up to 200,000 cfs,” ^ The Glen Canyon Dam Adaptive Management Program Presents: Colorado River Ecosystem Science Symposium, Tempe, Arizona, October 25-37.

Hanks, T.C., R.H. Webb, C.S. Magirl, and P.G. Griffiths, 2003, “Longitudinal-profile convexities related to long-term debris-flow inputs to the Colorado River in Grand Canyon, Arizona,” Geological Society of America Abstracts with Programs, v. 35, no. 6, p. 24.

Magirl, C.S., R.H. Webb, and P.G. Griffiths, 2003, “Geomorphic Change Detection in Grand Canyon: Comparison of 2000 LIDAR and 1923 Survey Data,” ^ The Colorado River, An Ecosystem Science Symposium, The Glen Canyon Dam Adaptive Management Program, GCMRC, Tucson, Arizona, October 28-30.

Magirl, C.S., 2003, “1D Hydraulic Modeling: Advancements in hydraulic models used in Grand Canyon, Arizona,” The Department of Hydrology and Water Resources’ El Dia del Agua 2003, the University of Arizona.

Magirl, C.S., R.H. Webb, and P.G. Griffiths, 2002, “Geomorphic change detection in Grand Canyon: comparison of 2000 Lidar and 1923 survey data,” ^ Geological Society of America Abstracts with Programs, v. 34, no. 6, p. 203.


Co-authored Presentations


Marineau, M.D., A.S. Gendaszek, C.S. Magirl, C.R. Czuba, and J.A. Czuba, 2012, “Surrogate bedload monitoring using hydrophones in the gravel-bedded Cedar River, Washington,” ^ 2012 Hydraulic Measurements and Experimental Methods Conference, Snowbird, Utah, 12-15 August.

Gendaszek, A.S., C.S. Magirl, C.P. Konrad, C.R. Czuba, and M.D. Marineau, 2012, “Using buried accelerometers to measure the timing of bed movement, scour, and fill in gravel-bedded rivers,” ^ 2012 Hydraulic Measurements and Experimental Methods Conference, Snowbird, Utah, 12-15 August.

Kennard, P.S., S. Beason, C.S. Magirl, and T. Abbe, 2012, “Climate Change, Exploding Hillslopes, and Rivers Gone Wild: Trying Times for Trails?” Trails Training Refresher 2012, Mount Rainier National Park, Ashford, WA, 5 June.

Czuba, J.A., C.R. Czuba, ^ C.S. Magirl, and Yantao Cui, 2011, “Simulated sediment-pulse dynamics in major rivers draining Mount Rainier, Washington,” American Geophysical Union, Fall Meeting 2011, #EP51A-0830, San Francisco, California, 5-9 December.

Curran, C.A., Cox, S.E., and Magirl C.S., 2011, “Surrogate Sediment Technologies to Monitor Load in the Sumas River,” ^ Swift-Sumas Sediment Science Summit, Western Washington University, Bellingham, WA, May 27, 2011.

Olsen, T.D., and Magirl, C.S., 2011, “Navigability potential of Washington rivers and streams determined with hydraulic geometry and a geographic information system,” 8th Washington Hydrogeology Symposium, Tacoma, Washington, April 26-28, 2011.

Czuba, C.R., Czuba, J.A., Magirl, C.S., Gendaszek, A.S., and Marineau, M.D., 2011, “Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on salmon-spawning habitat in the Cedar River, Washington,” USGS Surface-Water Conference and Hydroacoustic Workshop, Tampa, Florida, March 28 – April 1, 2011.

Czuba, J.A., Magirl, C.S., and Czuba, C.R., 2011, “Geomorphic Response from Sedimentation of Rivers Draining Mount Rainier, Washington,” ^ USGS Surface-Water Conference and Hydroacoustic Workshop, Tampa, Florida, March 28 – April 1, 2011.

Czuba, J.A., C.S. Magirl, C.R. Czuba, C.A. Curran, K.H. Johnson, and T.D. Olsen, 2011, “Geomorphic analysis of the fluvial response from sedimentation downstream from Mount Rainier, WA: Preliminary phase II study results,” Presentation to Pierce County Rivers Flood Hazard Management Plan Advisory Committee, University Place, WA, 10 March 2011.

Kennard, P. S. Beason, S. Lofgren, L. Walkup, T. Abbe, and ^ C. Magirl, 2011, “Goats to Geoducks—Climate Change and Geo-hazards from the Summit of Mount Rainier to Puget Sound,” Mount Rainier National Park Climate Change Workshop, Longmire, Washington, 2 March 2011.

Gendaszek, A.S., C.S. Magirl, C.R. Czuba, C.P. Konrad, and R. Little, 2011, "A geomorphic framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration of the Cedar River, Washington," USGS Pacific Northwest Science Conference, Vancouver, Washington, 1-3 March.

Czuba, J.A., ^ C.S. Magirl, and C.R. Czuba, 2011, “Geomorphic response from sedimentation of rivers draining Mount Rainier, Washington,” USGS Pacific Northwest Science Conference, Vancouver, Washington, 1-3 March.

Czuba, C.R., J.A. Czuba, A.S. Gendaszek, C.S. Magirl, 2011, "Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on channel morphology and salmon-spawning habitat in the Cedar River, Washington," USGS Pacific Northwest Science Conference, Vancouver, Washington, 1-3 March.

Duda, J., ^ C. Magirl, R. Sheibley, G. Gelfenbaum, J. Warrick, A. Draut, I. Miller, S. Rubin, and P. Shafroth, 2011, “USGS multi-disciplinary science story from the Northwest Area: highlighting Elwha River studies prior to the nation’s largest dam removal,” USGS Pacific Northwest Science Conference, Portland, Oregon, 1-3 March.

Gendaszek, A.S., ^ C.S. Magirl, C.R. Barnas, C.R. Konrad, and R. Little, 2010, “A geomorphic framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration of the Cedar River, Washington,” American Geophysical Union, Fall Meeting 2010, #H43D-1284, San Francisco, California, 13-17 December.

Barnas, C.R., J.A. Czuba, A.S. Gendaszek, and ^ C.S. Magirl, 2010, “Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on channel morphology and salmon-spawning habitat in the Cedar River, Washington,” American Geophysical Union, Fall Meeting 2010, #H33A-1119, San Francisco, California, 13-17 December.

Czuba, J.A., C.R. Barnas, and ^ C.S. Magirl, 2010, “Geomorphic response of rivers to glacial retreat and increasing peak flows downstream from Mount Rainier, Washington,” American Geophysical Union, Fall Meeting 2010, #EP54B-08, San Francisco, California, 13-17 December.

Czuba, J.A., C.R. Czuba, C.S. Magirl, and F. Voss, 2010, “River Aggradation in the Puget Lowland,” ^ U.S. Geological Survey Washington Water Science Center Seminar, Tacoma, WA, October 26, 2010.

Czuba, J.A., C.R. Barnas, C.S. Magirl, and F. Voss, 2010, “Channel-conveyance capacity, channel change, and sediment transport in the lower Puyallup, White, and Carbon Rivers of western Washington,” Pierce County Rivers Hazard Management Plan Advisory Committee Meeting No 5., University Place, Washington, April 15, 2010.

Olsen, T.D., and C.S. Magirl, 2010, “Navigability potential of Washington rivers and streams determined with hydraulic geometry and a geographic information system,” ^ 2010 AWRA GIS Specialty Conference, Orlando, Florida, March 29-31, 2010.

Webb, R.H., P.G. Griffiths, C.S. Magirl, and A. Youberg, 2009, “Debris Flows and Floods in Southeastern Arizona from Extreme Precipitation in July 2006—Magnitude, Frequency, and Sediment Delivery,” ^ Seminar, Institute for Earth Sciences, Hebrew University of Jerusalem, Israel, November 2009.

Webb, R.H., P.G. Griffiths, C.S. Magirl, and A. Youberg, 2009, “Debris flows and extreme events in the southwestern United States and northwestern Mexico,” Global Continental Paleohydrology (GLOCOPH) Israel 2009, Haifa, Israel, 25 October – 3 November.

Youberg, A., ^ C.S. Magirl, R.H. Webb, P.G. Griffiths, and P.A. Pearthree, 2009, “Comparison of late Pleistocene and historical debris-flow volumes and initiation mechanisms, Santa Catalina Mountains, Arizona,” Geological Society of America Abstracts with Programs, Vol. 41, No. 7, p. 716, Portland, Oregon, 18-21 October.

Griffiths, P.G., R.H. Webb, ^ C.S. Magirl, and E. Pytlak, 2008, “Spatial precipitation frequency of an extreme event: the July 2006 mesoscale convective complexes and debris flows in southeastern Arizona,” Eos Transactions, American Geophysical Union, 89 (53), Fall Meeting Supplement, Abstract H44B-06.

Webb, R.H., P.G. Griffiths, and ^ C.S. Magirl, 2008, “Debris flows in southeastern Arizona: Holocene frequency of extreme events,” Geological Society of America Abstracts with Programs, Vol. 40, No. 1, p. 88, Cordilleran Section and Rocky Mountain Section Joint Meeting, 19-21 March 2008, Las Vegas, Nevada.

Griffiths, P.,G., ^ C.S. Magirl, R.H. Webb, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” Casas Adobes Rotary Club, Tucson, Arizona, October 24.

Griffiths, P.G., ^ C.S. Magirl, C.S., R.H. Webb, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” Southern Arizona Environmental Management Society, Tucson, Arizona, September 26.

Smart, G.M., Magirl, C.S., J.W. Gartner, and R.H. Webb, 2007, “Techniques and instrumentation for measuring flow in high-gradient rivers,” 2007 Hydraulic Measurements & Experimental Methods Conference, Lake Placid, New York, September 10-12.

Parker, J.T.C., R.H. Webb, M. Schaffner, P.G. Griffiths, C. Shoemaker, C.S. Magirl, and E. Pytlak, 2007. “Debris Flows and Record Floods from Extreme Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona,” Proceedings National Hydrologic Warning Council Seventh Biennial Conference and Exposition, Savannah, June 11-14, 2007.

Magirl, C.S., J.W. Gartner, and R.H. Webb, 2007 “Swift-water velocity measurements,” National Surface Water Conference & Hydroacoustics Workshop, St. Louis, Missouri, April 5.

Gartner, J.W., Magirl, C.S., R.H. Webb, P.G. Griffiths, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31, 2006,” National Surface Water Conference & Hydroacoustics Workshop, St. Louis, Missouri, April 3.

Griffiths, P.G., R.H. Webb, ^ C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31,” Arizona Water and Pollution Control Association Luncheon, Tucson, Arizona, March 22.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2007, “Floods and Debris Flows in the Catalina Front Range and Southern Arizona, July 31,” The University of Arizona’s Department of Soil, Water, and Environmental Science; Tucson, Arizona, Jan. 29.

Youberg, A., Webb, R.H., P.G. Griffiths, ^ C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, and P. Pearthree, 2007, “Floods and Debris Flows in the Catalina Front Range, July 31, 2006” Arizona Hydrological Society Monthly Meeting, Tucson, Arizona, January 9.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2006, “Floods and Debris Flows in the Catalina Front Range,” ^ Rural Metro Fire Informational Meeting, Oro Valley, Arizona, November 20.

Shoemaker, C., C.S. Magirl, M. Schaffner, R.H. Webb, E. Pytlak, and P.G. Griffiths, 2006, “Extreme Hydrometeorological Event From Multi-Day Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona,” The Thirteenth Annual Workshop on Weather Prediction in the Intermountain West, Salt Lake City, Utah, November 16.

Webb, R.H., P.G. Griffiths, ^ C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2006, “Floods and Debris Flows in the Catalina Front Range,” Oro Valley Town Council, Oro Valley, Arizona, November 16.

Griffiths P.G., R.H. Webb, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, T. Evans, P. Pearthree, and A. Youberg, 2006, “Floods and Debris Flows in the Catalina Front Range,” ^ Pima County Flood Control District Advisory Board Meeting, Tucson, Arizona, November 15.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Debris flows and Record Floods from Extreme Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona,” Pima Domestic Preparedness Council: Pima County Office of Emergency Management and Homeland Security, Tucson, Arizona, October 19.

Griffiths, P.G., R.H. Webb, R.H., ^ C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Floods and Debris flows in the Catalina Front Range,” Friends of Sabino Canyon Annual Meeting, Tucson, September 30.

Griffiths, P.G., Webb, R.H., C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Floods and Debris flows in the Catalina Front Range,” Coronado National Forest Sabino Canyon Public Forum, Tucson, Arizona, September 23.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Floods and Debris flows in the Catalina Front Range,” USDA Forest Service, Coronado District, Tucson, Arizona, Sept. 21.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Debris flows and Record Floods from Extreme Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona,” US Geological Survey Seminar, Tucson, Arizona, September 20.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Floods and Debris flows in the Catalina Front Range,” Department of Pima County Flood Control, Tucson, Arizona, Sept. 18.

Webb, R.H., P.G. Griffiths, C.S. Magirl, D.E. Boyer, E. Pytlak, C. Shoemaker, M. Schaffner, 2006, “Debris flows in the Catalina Front Range,” USGS Brownbag Seminar, Tucson, Arizona, September 6.

Griffiths, P.G., Webb, R.H., and Magirl, C.S., 2006, “Modeling debris flows: Grand Canyon and the Colorado Plateau,” Grand Canyon Monitoring and Research Center Protocol Evaluation Program, Implementation of Long-Term Monitoring in the 21st Century, Flagstaff, Arizona, August 15-17.

Yanites, B.J., R.H. Webb, P.G. Griffiths, and C.S. Magirl, 2005, “Remote sensing of debris flow deposition and reworking by the Colorado River in Grand Canyon, Arizona,” AGU Fall Meeting, H43C-0511.

Webb, R.H., P.G. Griffiths, C.S. Magirl, and B.J. Yanites, 2005, “Changes in debris fans and rapids: 21 years of monitoring debris flows in Grand Canyon” ^ The Glen Canyon Dam Adaptive Management Program Presents: Colorado River Ecosystem Science Symposium, Tempe, Arizona, October 25-37.

Webb, R.H., P.G. Griffiths, C.S. Magirl, and T.C. Hanks, 2005, “Debris Flows in Grand Canyon and the Rapids of the Colorado River (Chapter 8),” ^ The Glen Canyon Dam Adaptive Management Program Presents: Colorado River Ecosystem Science Symposium, Tempe, Arizona, October 25-37.

Webb, R.H., P.G. Griffiths, C.S. Magirl, and T.C. Hanks, 2005 “Debris flows in Grand Canyon: Modeling changes in the longitudinal profile of the Colorado River,” ^ Grand Canyon Monitoring and Research Center’s Geomorphology Symposium, Flagstaff, Arizona, February 8-10.

Hanks, T.C., R.H. Webb, C.S. Magirl, and P.G. Griffiths, 2003, “Longitudinal Profile Convexities: Long-term debris flow input, and transport processes for the Colorado River in Grand Canyon, Arizona” ^ The Colorado River, An Ecosystem Science Symposium, The Glen Canyon Dam AMP, GCMRC, Tucson, October 28-30.


SCHOLARSHIPS and AWARDS


2001 NASA Summer School: High Performance Computational Sciences

National Science Foundation Graduate Trainee Fellowship, 19992000


Patents


6,923,585: Mann, Hay, Catchpole, and Magirl, 2005, “Hybrid set-top box and printing device.”

6,652,174: Mann, Hay, Catchpole, and Magirl, 2003, “Hybrid set-top box and printing device.”

6,328,415: Norton, McKay, Yamamoto, Magirl, and Hay, 2001, “Displaceable print cartridge chute.”

6,139,128: Magirl, McKay, Yamamoto, and Norton, 2000, “Discrete pen wiping…to reduce size of inkjet printer.”

6,135,655: Magirl, 2000, “Multipixel dots in monochrome drop-on-demand printing.”


Membership


American Geophysical Union

Geological Society of America

Washington Association of Floodplain Management






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