Biography Teaching Memberships  Professional  Publications  Conference
Degrees Graduates International  Computer  Textbook  Reports
Awards National  Laboratory  Refereed papers


 

  Pierre Y. Julien, Ph.D., P. Eng.

  Professor of Civil Engineering
  Engineering Research Center
  Colorado State University
  Fort Collins, CO 80523

  Tel: (970)-491-8450
  Fax: (970)- 491-7008
  Email: pierre@engr.colostate.edu
  http://www.engr.colostate.edu/depts/ce/facultystaff/academic_faculty/julien/index.html





  Biography

Dr. Julien has more than 20 years of experience in the field of sediment transport and river engineering.  He started his academic career as Substitute Professor at the Civil Engineering Department at Laval University in 1979.  He completed his Ph.D. at Laval University in the field of hydraulics and sediment transport.  He pursued post-doctoral studies at Colorado State University in 1983 where he was Faculty Affiliate (1983-1985), Assistant Professor (1985-1989), Tenured Associate Professor (1989-1994), and Tenured Full Professor since 1995. Dr. Julien authored more than 225 scientific publications including two textbooks and at least 50 refereed journal publications.  He regularly teaches two graduate courses CE716- Erosion and Sedimentation and CE717 River Mechanics at CSU.  Under his guidance, 22 Ph.D. and 21 M.S. students completed their graduate degrees in Civil Engineering.  He is currently member of 10 professional organizations.  He has carried out research activities exceeding $3 millions for more than 20 different governmental agencies and professional organizations. 

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  Degrees
    • Ph.D.     Civil Engineering (hydraulics), Laval University,  1983
    • M.Sc.    Civil Engineering (hydraulics), Laval University,  1980
    • B.Sc.A.  Civil Engineering,  Laval University, Quebec, Canada,  1977


  Awards and Honors
    • Post-graduate scholarship from the National Research Council of Canada, CNRC-NSERC, 1977-79.
    • NATO Post-doctoral fellowship, administered by Natural Sciences and Engineering Research Council of Canada, CNRC_NSERC, 1983-85.
    • Best Paper Award, American Society of Agricultural Engineers, ASAE, 1986.
    • J.C. Stevens Award of the American Society of Civil Engineers, ASCE, 1989.
    • Halliburton New Faculty Research Award, College of Engineering, CSU, 1989.
    • Faculty of the year at Allison Hall, Colorado State University, 1996.
    • Abell Faculty Research and Graduate Program Support Award of Excellence for outstanding achievement and professionalism in education, research, and service to graduate students, College of Engineering, CSU, 1999.



  Professional affiliations 
    • Professional engineer registration and member of the Ordre des Ingénieurs, Québec, Canada (P. Eng. License # 32325).
    • Life member of the United States Committee on Irrigation and Drainage (USCID).
    • Life member of the United States Committee on  Large Dams (USCOLD).
    • Member of the American Society of Civil Engineers (ASCE # 239111).
    • Member of the American Society of Agricultural Engineers (ASAE # 21687).
    • Member of the International Association for Hydraulic Research (IAHR # 5149).
    • Member of the American Geophysical Union (AGU).
    • Fellow of the Cooperative Institute for Research in the Atmosphere (CIRA).
    • Fellow of the Institute of Arctic and Alpine Research (INSTAAR).
    • Member of the International Water Resources Association (IWRA).

  Teaching experience
  • Erosion and Sedimentation, CSU.
  • River Mechanics, CSU.
  • Engineering Mechanics - Statics and Dynamics, CSU.
  • Engineering Mechanics - Dynamics, CSU.
  • Fluid Mechanics (undergraduate), CSU.
  • Fluid Mechanics for Non-Engineers, CSU.
  • Environmental River Mechanics, CSU.
  • Hydrodynamics, Université Laval, Québec, Canada.
  • Flow in Closed-Conduits, Université Laval, Québec, Canada.
  • Experimental Fluid Mechanics and Hydraulics, Université Laval, Québec, Canada.

  •   Workshops and short courses organized 
     

    • Short Course: Special Topics in Hydraulics - Keynote Lectures in Hydraulics by D.B. Simons, E.V. Richardson and J. Liou, CSU, May 24-June 11, 1999.
    • Short Course on Flood Hazard Mitigation, Cliff Lodge at Snowbird Utah, October 5-7, 1998.
    • Short Course on Debris Flow Modeling Using FLO2D, World Trade Center, San Francisco, August 5-6, 1997.
    • Training expert and team leader on soil erosion control and streambank protection for CID/ World Bank to a delegation of 10 Turkish Engineers in France, Oct. 10-25, 1996.
    • Workshop on "Two-dimensional Surface Runoff Modeling", Center for Geosciences, January 16-20, Fort Collins, 1995.
    • Workshop on "Hydrologic Modeling" at the Fort Collins Marriott for the ARO Center for Geosciences, 1988.
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      Ph.D.  Students  (major professor only)

                 Name                      Dissertation Topic                  Grad. date

    1.   A. Dawod              Rainfall erosion                Ph.D.    Summer '86
    2.   J.S. O'Brien          Rheology of mudflow        Ph.D.    Summer '86
    3.   N. Bormann          Drop Structures scour      Ph.D.    July '88
    4.   J. Richardson       Moving rainstorms            Ph.D.    June '89
    5.   D. Hartley              Raindrop impact               Ph.D.   January '90
    6.   O. Stein                 Rills and headcut              Ph.D.   July '90
    7.   Y. Lan                    River meandering             Ph.D.    December '90
    8.   G. Choi*               Channel networks              Ph.D.    December '90
    9.   K. Marcus             Finite element runoff l       Ph.D.    April '91
    10. F. Ogden            Radar hydrology                  Ph.D.    January '92
    11. B. Saghafian      2-D runoff modeling            Ph.D.    January '92
    12. W. Doe               Terrain modeling                 Ph.D.    June '92
    13. J. Wargadalam  Regime equations               Ph.D.    April '93
    14. D. May                Lagrangian rainstorms        Ph.D.    November '93
    15. Y. Raslan            Bed form mechanics           Ph.D.    January '94
    16. D. Williams*       Sediment transport              Ph.D.    Fall '95
    17. D. Molnar (Noss) Mesoscale runoff               Ph.D.    Spring 97
    18. B. Johnson          CASC2D-SED                   Ph.D.    Spring 97
    19. J. Guo                  Wake flow functions            Ph.D.   Summer 98
    20. J. Jorgeson         Flash floods                         Ph.D.    Summer 99
    21. A. Sharma           Subsurface modeling         Ph.D.    Spring 00
    22. G. Richard           Rio Grande planform          Ph.D.    Spring 01


      M.S.  Students with thesis  (major professor only)

                  Name               Thesis Topic                                        Grad. date

    1.  T. Cline*        Auto-CAD and HEC-1                     M.S.   June  '88
    2.  G. Moglen     Distributed overland flow                 M.S.   June '89
    3.  C. Santoro*  Scour around bridge piers               M.S.   July '89
    4.  Y. Raslan       Properties of bed forms                  M.S.   Dec. '90
    5.  C. Meier        Bedload particle velocity                 M.S.   Fall '95
    6.  K. Klimek      Particle velocity on rough plates     M.S.   Fall 97
    7.  C. Leon         Hydraulic geometry of Rio Grande M.S.   Sum 98
    8.  T. Bauer        Rio Grande hydraulic geometry      M.S.   Sum 99
    9.  H. Hussain    Mudflow velocities                            M.S.   Sum 99
    10. J. Spah         Large scale runoff modeling           M.S.   Fall 99
    11. L. Tysdal      Actinide migration                            M.S.   Fall 99
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      International activities
       
      •   Member of the International Organizing Committee of the Third International Conference on Debris Flow Hazards Mitigation, Davos, Switzerland, September 10-12, 2003.
      •   Invited founding member of the World Association for Sediment Research WASR.
      •   Invited member of the International Advisory Committee of the 13th APD-IAHR Congress.
      •   Member of the International Organizing Committee of the Third International Conference on Debris Flow Hazards Mitigation, Davos, Switzerland, September 10-12, 2003.
      •   External Examiner for the Ph.D. dissertation of Kerry Mazurek, University of Alberta, Edmonton, Canada, 2000-01.
      •   Member of the International Organizing Committee of the Second International Conference on Debris Flow Hazards Mitigation, Taipei, Taiwan, August 18-20, 2000.
      •   Invited Speaker at the ICHE, Cottbus, Germany, Aug. 31- Sept. 3, 1998.
      •   Invited Speaker at the Granular Geomorphology Workshop, Lyon, France, Sept. 7-11, 1998.
      •   Speaker at the IWRA, IX World Water Congress, Montreal, Canada, Sept. 1-6, 1997.
      •   Invited Speaker and External Examiner for the Ph.D. dissertation of Hamid Shamloo, University of Alberta, Edmonton, Canada, 1996.
      •   Invited Speaker at the Workshop on "Structures Internes et Comportement des Suspensions Concentrées Géologiques", La Grande Motte, France, October 4-6, 1995.
      •   Invited Speaker, ETHZ Seminar, "Geosciences and Hyperconcentrations", Zurich, Switzerland, 1994.
      •   Invited Speaker and Session Chairman at the Intl. Workshop on Floods and Inundations Related to Large Earth Movements, Trento, Italy, 1994.
      •   Keynote paper at the International Workshop on Debris Flows, Kagoshima, Japan, 1993.
      •   Panelist at the Asia and Pacific Ocean Intl. Conference on Volcanic Debris Flow Disaster Prevention, Fukuoka, Japan, 1993.
      •   Invited Speaker and Session Chairman at the Pierre Beghin - International Workshop on Rapid Gravitational Mass Movements, Grenoble, France, 1993.
      •   Presentation on Sediment Transport at the Grain Sorting Seminar in Ascona, Switzerland, 1991.
      •   Presentations on the formation of dunes during floods at Delft Hydraulics and the Rijkswaterstaat, the Netherlands, 1991.
      •   Presentation on fluvial hydraulics at the IAHR Congress in Ottawa, Canada, 1989.
      •   Session Chairman at the Fourth International Symposium on River Sedimentation in Beijing, China, 1989.
      •   Presentation on soil erosion at the ASAE-CSAE Summer Meeting in Québec, Canada, 1989.
      •   Lecture to civil engineering undergraduate at the Hokkaido University in Sapporo, Japan, 1989.
      •   Presentation to professional engineers at the Hokkaido Development Bureau in Sapporo, Japan, 1989.
      •   Seminar on Hydraulic Geometry of Alluvial Channels at the Civil Engineering Department at Kyoto University, Kyoto, Japan, 1989.
      •   Presentation at the Centennial CSCE Conference in Montréal, Canada, 1987.
      •   Presentation on soil erosion for the Institution of Engineers Pakistan, in Peshawar, Pakistan, 1985.
      •   Presentation on Reservoir Sedimentation at Tarbela Dam, Pakistan, 1985.
      •   Presentation on Computer modeling of soil erosion for the Ministry of Irrigation in Cairo, Egypt, 1985.
      •   Presentation on soil erosion at the CSCE Hydrotechnical Conference in Saskatoon, Canada, 1985.





      National activities 
       
      •   Seminar on "What's New in Sedimentation and River Mechanics", Waterways Experiment Station, Mobile District and New Orleans District, USACE, May 22-24, 2001. 
      •   Invited at the Order of the Engineer Ceremony, CSU, May 10, 2001.
      •   Invited Speaker at the 21stAnnual AGU Hydrology Days, CSU, Presentation entitled "The Study of Rivers" to honor Stan Schumm's contributions to fluvial geomorphology, April 2-5, 2001.
      •   Session Chairman at the 7th Federal Interagency Sedimentation Conference, Reno, Nevada, March 25-30, 2001.
      •   Invited speaker presentation on the History of the Order of the Engineer, CSU, May 13, 1999.
      •   Invited speaker and session chair at the Landscape Erosion and Sedimentation Modeling Workshop, Fort Collins, Colorado, March 1-5, 1999.
      •   Discussion Session Facilitator at the ASCE Wetlands Engineering & River Restoration Conference, Denver, Colorado, 1998.
      •   Seminar on "Review of  two-dimensional surface runoff modeling with CASC2D, GIS and radar data", National Weather Service, Office of Hydrology, Washington D.C., 1997. 
      •   Invited Speaker at the Conference on Management of Landscapes Disturbed by Channel Incision, May 20-22, Oxford, Mississippi, 1997.
      •   Invited speaker and Session Moderator at the  First Intl. Conference on Debris Flow Hazards Mitigation, San Francisco, California, August 7-9, 1997.
      •   Speaker and Session Moderator at the ASCE/IAHR Congress on Water for a Changing Global Community, San Francisco, California, August 10-15, 1997.
      •   Speaker on Reservoir Sedimentation Modeling at the Reservoir Sedimentation Conference, Fort Collins, Colorado, Sept. 9-12., 1996.
      •   Speaker at the Reunion Symposium to honor Stanley Schumm, CSU Fort Collins, Colorado, 1996.
      •   Speaker on Flash flood Modeling at the Rocky Mountain Hydrologic Research Center, Estes Park, Colorado, Sept. 20, 1996.
      •   Invited Speaker, Iowa Institute of Hydraulic Research, "Hyperconcentrations of sediments", Iowa City, Iowa, 1994.
      •   Member USDA-ARS National Sedimentation Laboratory Review Team, Oxford, Mississippi, June 1994.
      •   Session Chairman at the AGU Hydrology Days Conference in Fort Collins, Colorado, 1990.
      •   Session Chairman and presentation at the ASCE National Conference on Hydraulic Engineering in San Diego, California, 1990.
      •   Presentation at the International Symposium on Hydrology and Hydraulics of Arid Lands in San Diego, California, 1990.
      •   Session Chairman at the ASCE National Conference on Hydraulic Engineering in New Orleans, Louisiana, 1989.
      •   Presentation at the AGU Meeting in San Francisco, California, 1989.
      •   Session Chairman at the ASCE National Conference on Hydraulic Engineering at Colorado Springs, Colorado, 1988.
      •   Keynote presentation at the Megatrends in Hydraulic Engineering Conference, Fort Collins, Colorado, 1986.
      •   Lecture on Erosion and Sedimentation for the National Park Service, Fort Collins, Colorado, 1986.
      •   Presentation at the Third International Symposium on River Sedimentation in Jackson, Mississippi, 1986.
      •   Presentation at the IAHS Symposium on Drainage Basin and Sediment Delivery in Albuquerque, New Mexico, 1986.
      •   Presentation at the Fourth International Hydrology Symposium, Fort Collins, Colorado, 1985.
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      Research interests
       
      •   Erosion and sedimentation near nuclear and hydroelectric power plants.
      •   Soil erosion, sediment transport in rivers and reservoir sedimentation.
      •   Two-dimensional modeling of flash floods from moving rainstorms using GIS data bases and radar precipitation data. 
      •   Computer modeling of soil erosion and sediment yield from rainfall and snowmelt on large watersheds.
      •   Hydraulic  geometry of stable alluvial channels and aquatic habitat.
      •   Hyperconcentrated sediment flows, mud flows and debris flows.
      •   Local scour downstream of grade-control structures and headcut migration.





      Professional studies
       
      • Analysis of the geomorphological changes of the Rio Grande River since the construction of Cochiti Dam, for the U.S. Bureau of Reclamation, Albuquerque, since 1997.
      • Analysis of the changes in resistance to flow of the Rhine River during floods, for Delft Hydraulics and the Rijkswaterstaat, The Netherlands, 1999-00. 
      • Analysis of actinide migration at Rocky Flats, for Kaiser-Hill, 1998-99.
      • Member of the Academic Review Team for the Analysis of sediment transport near Old Mississippi River Control, Lower Mississippi River, for Louisiana Hydroelectric and the U.S. Army Corps of Engineers, 1997-99.
      • Review of Uranium Mill Tailings at L-Bar, New Mexico, for the U.S. Nuclear Regulatory Commission, 1997-99.
      • Analysis of contaminated sediment transport at an EPA superfund site on Whitewood Creek, South Dakota, for ISSI, 1998.
      • Expert witness on a flood-related problem in Texas, for the U.S. Department of Justice, 1998. 
      • Analysis and review of the canal intake and desilting works at the Aligidir Irrigation Project in Eritrea, for NRCE, 1997.
      • Report review "Trinity River - Maintenance Flow Study" for the U.S. Fish and Wildlife Service, 1997-1998.
      • Analysis of the changes in dune geometry of the Rhine River during floods, for Delft Hydraulics and the Rijkswaterstaat, The Netherlands, 1991-93. 
      • Pipeline sedimentation study, for Tubecon, Québec, Canada, 1988.
      • Sedimentation Analysis of the Riviere-a-Mars, for Université Laval,  Canada, 1985.
      • Sedimentation Analysis of the Molineros Reservoir, for Hydrotech, Québec, Canada, 1983-1984. 
      • Analysis of sediment transport in the St-Lawrence and its tributaries, for Hydrotech, Québec, Canada, 1977-1982. 
      • Several fish habitat studies in "La Mauricie" and on the Ste-Anne-des-Monts River for Hydrotech, Québec, Canada, 1974-1982.
      • Hydraulic and sediment studies on the impact of iron mining on the rivers Carheil,  aux Pekans and Moisie for Hydrotech, Québec, Canada, 1976.
      • Impact of breached copper tailing ponds on mountain streams for Hydrotech, Québec, Canada, 1976.
      • Hydraulic and sediment study of the Matamec River. Ptoject in collaboration with biologists in the study of suitable fish habitat for Atlantic Salmon, for Centreau, Québec, Canada, 1974-1979.





      Computer modeling
       
      •   Recent soil erosion studies using the dynamic model CASC2D-SED with GIS applications to watersheds including Nelson Farm and Goodwin Creek, Mississippi, since 1995.
      •   Development of the model CASC2D for the simulation of two-dimensional surface runoff from spatially-distributed rainfall on complex watersheds.  The hydrologic model is coupled with GIS tools and raingages or S-Band polarized dual-Doppler rainfall rates for the simulation of surface runoff on arid areas, since 1990. 
      •   The model CASC2D has been calibrated on Macks Creek in Idaho, Goodwin Creek in Mississippi and has been used for simulations on Taylor Arroyo, Colorado, Hickahala-Senatobia, Mississippi, and Salzbach in Switzerland.  The model CASC2D has been integrated in the Watershed Modeling System WMS of the U.S. Army Corps of Engineers at the Waterways Experiment Station, since 1989.
      •   The analysis of large concentrations of sands in suspension using the diffusion-dispersion models, since 1985. 
      •   The analysis of the rheology of mud flows and debris flows using the quadratic model resulted in the development of the two-dimensional mud flow routing model FLO-2D by Dr. O'Brien, since 1983.
      •   Analysis of soil erosion for actinide migration using WEPP, 1998-00.
      •   Analysis of rain gage and radar data data for moving rainstorms led to the development of Eulerian and Lagrangian correlation techniques, 1986-1992.
      •   The effects of moving rainstorms on peak surface runoff has been studied using the models CASC and FEM1U developed at CSU, 1988-1989.
      •   Applications of soil erosion models including LAVSED and RUSLE on watersheds under different climates namely on the Chaudière watershed in Canada and the Conca de Tremp watershed in Spain, 1986-1989. 
      •   Development of the soil erosion model LAVSED for the simulation of sediment transport from snowmelt runoff on large northern streams, 1977-1983.
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      Laboratory research
       
      •   Particle velocity measurements on steep rough slopes, 1996-1998.
      •   Bedload particle velocity measurements on smooth and rough dry surfaces, 1993-1997.
      •   Experiments on upper-regime plane bed, 1992-1993.
      •   Experiments on the geometry of small dunes, 1988-1991.
      •   Small scale experiments on the lateral migration of alluvial channels, 1988-1991.
      •   Large-scale experiments on scour below grade-control structures, 1986-1990. 
      •   Experimental measurements of velocity profiles and scour development around bridge piers, 1986-1990.
      •   Laboratory measurement of the rheological properties of mud flows, 1985-1986.
      •   Laboratory measurements of shear stress from single raindrops impacting sheet flow, 1986-1990.
      •   Experiments on lamination and stratification of sand mixtures, 1986-1993.
      •   Small-scale laboratory experiments on headcut migration and development of  rills on different soils, 1988-1991. 
      •   Studies on the mechanics of the erosion processes downstream of grade-control structures, 1985-1992. 
      •   Laboratory measurement of sediment  concentration profiles in a Rankine combined vortex, 1984-1986.
      •   Experimental research on the stability of laminar sheet flow and the formation of roll waves, 1983-1986.
      •   Design and calibration of three small-scale hydraulic models to improve the laboratory facilities at Laval University, 1979-1980.
      •   Assistant to Prof. Frenette on physical modeling of salt intrusion in a degenerated estuary at the Hydraulics Laboratory at Laval University, 1976-1977.
     


      PUBLICATIONS
     

      M.Sc. Thesis and Ph.D. Dissertation

    1. Julien, P.Y.  Erosion de bassin et apport solide en  suspension dans les  cours d'eau nordiques,  M.Sc. Thesis, Départment de Génie Civil, Université Laval,Québec, Canada, September 1979, 186 p. 

    2. Julien, P.Y.  Prédiction d'apport solide pluvial et  nival dans les cours  d'eau nordiques à partir du ruisselement superficiel,  Ph.D. dissertation, Départment de Génie Civil, Université Laval,Québec, Canada, submitted in Nov. 1982, completed in February 1983, 240 p. 
     




      Textbook

    Julien, P.Y., Erosion and Sedimentation, Cambridge University Press,
       QE571.J85, ISBN 0-521-44237-0 Hardback in 1995, Paperback in 1998, 280p.
         Review by R.L. Soulsby, J. Fluid Mechanics, Vol. 304, 1995, pp. 373-6.
         Review by D. Walling, J. Hydrol. Sciences, 41(4), 1996, pp. 651-2.
         Review by C. Kendall, The Leading Edge, May 1996.
         Review by B. Gomez, Progress in Physical Geography, 20(2), 1996.
         Review by I.W. Drummond, OUGS Journal, 17(1), 1996.
         Review by W. R. White, World Meteorological Organization, 45(2), 1996.
         Review by G. Govers, Het Ingenieursblad, 66(3), 1997.
         Review by A. Borgia, J. Pure Appl. Geophys., Vol. 149, 1997, pp. 814-5.
         Review by W. Graf, J. of Hydr. Eng., ASCE, May 1999, pp. 554-5.
         Review by J. Nelson, American Geophysical Union, EOS, April 13, 1999.
         Review by H.M. Pantin, J. Sed. Res., 68(3), May 1998, pp. 519-20.
         Review by J. Woodside, The leading Edge, April 1999, p. 520.
         Review by J. Berlamont, Het Ingenieursblad, 5, May, 2000 (in Dutch)
         Review by N.J. Clifford, progress in Physical Geography, 24(2), 2000.
    http://www.cup.org/ObjectBuilder/ObjectBuilder.iwx?ProcessName=getProducts&Merchant_ID=1&path=/Engineerng/Civileng/&Section_ID=783&page=books&additionalSearch=AND&searchCriteria=books 
     

      Lecture Manuals 

    1. Richardson, E.V., D.B. Simons and P.Y. Julien.  Highways  in the River Environment, Training and Design Manual for the U.S.  Dept. of Transportation, Federal Highway Administration.  Publication No. FHWA-HI-90-016, February 1990.

    2. Julien, P.Y.  Erosion and Sedimentation, Teaching  Guide for CE-716  Erosion and Sedimentation, Colorado State University,  August 1987 (7 Chapters, 139p.), revised in 1992 (Part I, Chapters 1-6, 147p.; Part II, Chapters 7-12, 177p.).

    3. O'Brien, J.S. and P.Y. Julien, Mud and Debris Flow Modeling using FLO-2D, Lecture notes for a CSU Short Course presented in San Francisco, CA,  August 5-6, 1997.

    4. O'Brien, J.S., P.Y. Julien and V.M. Ponce, Flood Hazard Simulation, Lecture Notes for a CSU short course presented at the Cliff Lodge, Snowbird Utah, October 5-7, 1998.

    5. Guo, J.J., and P.Y. Julien, Solution Manual for Erosion and Sedimentation, Department of Civil Engineering, Colorado State University, January 1999, 114 p.

    6. Johnson, T., S.R. Abt, C.L. Thornton and P.Y. Julien, Design of Erosion Protection for Long-term Stabilization, Manual NUREG-1623, Nuclear Regulatory Commission, Washington, D.C., (in press).

    7.  Julien, P., Teaching Manual for CE-717 River Mechanics, Colorado State University, January, 1999, 386p. Revised in 2001, 800 p.

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      Book Chapters

    1. Richardson, J.R. and P.Y. Julien, One-Dimensional Modeling of Moving Rainstorms in Catchment Runoff and Rational Formula, Edited by B.C. Yen, Water Resources Publications, 1991, pp. 155-167.

     2. Williams, D.T., and P.Y. Julien, Examination of Stage-Discharge Relationships of Compound/Composite channels, in Channel Flow Resistance: Centennial of Manning's Formula, Edited by B.C. Yen, Water Resources Publications, 1991, pp. 341-355.

     3. Shen, H.W. and P.Y. Julien, Erosion and Sediment Transport, Chap. 12 in the Handbook of Hydrology, Mc Graw-Hill, 1993, 61p.

     4. Julien, P.Y., Flash flood modeling of Macks Creek, Chap. 17.2 in Coping with Floods, Edited by G. Rossi et al., NATO ASI Series E: Applied Sciences, Vol. 257, Kluwer Academic Publishers, 1994, pp. 403-410.

     5. Julien, P.Y., Sand Particle Interaction in Moving Bed Layers, in Archiv fur Hydrobiologie - Advances in Limnology - Suspended Particulate Matter in Rivers and Estuaries, Vol. 47, 1996, pp. 415-420.

     6. Julien, P.Y. and J.S. O'Brien, Selected notes on debris flow dynamics, and  Introduction to Chapter 2, in Recent Developments on Debris Flows, Lecture Notes in Earth Sciences, Edited by A. Armanini and M. Michiue, Springer Verlag, Vol. 64, 1997, pp. 65-69 and 144-162.
     



      Papers in refereed journals

    1. Frenette, M., M. Caron, P.Y. Julien, and R.J. Gibson.  Interaction  between salmon parr population and discharge in the Matamec River,  Canadian Journal of Fisheries and Aquatic Sciences, Vol. 41, No. 6, 1984, pp.  954-964.

     2. Julien, P.Y. and D.B. Simons.  Sediment transport capacity  of overland  flow,  Transactions of the ASAE, Vol. 28 (3), May-June  1985, pp.755-762. (ASAE Best Paper Award in 1986).

     3. Thorne, C.R., L.W. Zevenbergen, J.E. Pitlick, S. Rais,  J.B. Bradley and P.Y. Julien.  Direct measurements of secondary currents  in a meandering sand-bed river,  Nature, Vol. 315, June 1985, pp. 746-7.

     4. Julien, P.Y. and M. Frenette.  Modelling of rainfall  erosion,  Journal of Hydraulic Engineering, ASCE, Oct. 1985, Vol.  111 (10), pp. 1344-59.

     5. Julien, P.Y. and D.M. Hartley.  Formation of roll waves  in laminar sheet flow,  Journal of Hydraulic Research, IAHR, Vol.  24, No. 1, 1986, pp. 5-17.

     6. Frenette, M. and P.Y. Julien.  LAVSED I - A model for  predicting suspended load in northern streams,  Canadian Journal  of Civil Engineering, CSCE, Vol. 13, No. 2, April 1986, pp. 150-161.

     7. Julien, P.Y. and M. Frenette,  LAVSED II - A model  for predicting suspended load in northern streams,  Canadian Journal  of Civil Engineering, CSCE, Vol. 13, No. 2, 1986, pp. 162-170.

     8. Julien, P.Y.  Concentration of fine sediment particles  in a vortex, Journal of Hydraulic Research, IAHR, Vol. 24, No. 4,  1986, pp. 255-264.

     9. Frenette, M. and P.Y. Julien.  Computer modelling of  soil erosion and sediment yield from large watersheds,  International  Journal of Sediment Research, Vol. 1, 1987, pp. 39-68.

     10. Julien, P.Y. and A.M. Dawod.  On predicting upland  erosion losses from rainfall depth.  1.  Probabilistic approach,  Stochastic Hydrology and Hydraulics Journal, Vol. 1, 1987, pp. 127-134.

     11. Dawod, A.M. and P.Y. Julien.  On predicting upland  erosion losses from rainfall depth.  2.  Field applications in Iraq, Stochastic  Hydrology and Hydraulics Journal, Vol. 1, 1987, pp. 135-140.

     12. Julien, P.Y. and M. Frenette.  Macroscale analysis  of upland erosion, Hydrological Sciences Journal, IAHS, Vol. 32,  No. 3, 1987, pp. 347-358.

     13. O'Brien, J.S. and P.Y. Julien.  Laboratory analysis  of mudflow  properties, Journal of Hydraulic Engineering, ASCE, Vol.  114 (8), August 1988, pp. 877- 887.

     14. Woo, H.S., P.Y. Julien and E.V. Richardson.  Suspension  of large  concentrations of sands, Journal of Hydraulic Engineering,  ASCE, Vol. 114 (8), August 1988, pp. 888-898.

     15. Cline, T. J., A. Molinas and P. Y. Julien.  An AutoCAD-based  watershed information system for the Hydrologic model HEC-1,  Water  Resources Bulletin, AWRA, Vol. 25, No.3, June 1989, pp.      641-652.

     16. Julien, P.Y. and G.E. Moglen. Similarity and length scale for spatially varied overland flow, Water Resources Research, AGU, Vol. 26, No. 8, 1990, pp. 1819-1832.

     17. Santoro, V.C., P.Y. Julien, E.V. Richardson, and S.R. Abt. Velocity  profiles and scour depth measurements around bridge piers, Proc. Annual Meeting, Transportation Research Board, FHWA, paper # 910874.

     18. Julien, P.Y. and Y.Q. Lan.  Rheology of hyperconcentrations, Journal of Hydraulic Engineering, ASCE, Vol. 115, No.3, March 1991, pp. 346-353.

     19. Bormann, N.E. and P.Y. Julien, Scour downstream of grade-control structures, Journal of Hydraulic Engineering, ASCE, Vol. 115, No.5, May 1991, pp. 579-594.

     20. Julien, P.Y. and M. Gonzalez del Tanago, Spatially-varied soil erosion  under different climates, Hydrologic Sciences Journal, IAHS, Vol. 36, No. 6, Dec. 1991, pp. 511-524.

     21. Hartley, D.M. and P.Y. Julien.  Boundary shear stress induced by raindrop impact, Journal of Hydraulic Research, IAHR, Vol. 30, No. 3, 1992, pp. 341-359.

     22. Stein, O.R. and P.Y. Julien, Criterion delineating the mode of headcut migration, Journal of Hydraulic Engineering, ASCE, Vol. 119, No. 1, Jan. 1993, pp. 37-40.

     23. O'Brien, J.S., P.Y. Julien and W.T. Fullerton, Two-dimensional water flood and mudflow simulation, Journal of Hydraulic Engineering, ASCE, Vol. 119, No. 2, Feb. 1993, pp. 244-261.

     24. Ogden, F.L. and P.Y. Julien, Runoff sensitivity to temporal and spatial rainfall variability at runoff plane and small basin scale, Water Resources Research, AGU, Vol. 29, No. 8, 1993, pp. 2589-2597.

     25. Julien, P.Y., Y.Q. Lan and G. Berthault. Experiments on stratification of  heterogeneous sand mixtures, Bulletin de la Société Géologique de France, Tome 164, No. 5, 1993, pp. 649-660.

     26. Stein, O.R., P.Y. Julien and C.V. Alonso, Mechanics of rill scour, Journal of Hydraulic Research, IAHR, Vol. 31, No. 6, 1993, pp. 723-738.

     27. Richardson, J.R. and P.Y. Julien, Suitability of simplified overland flow  equations, Water Resources Research, AGU, Vol. 30, No. 3, 1994, pp. 665-671.

     28. Ogden, F.L., and P.Y. Julien, Two-dimensional runoff sensitivity to radar resolution, Journal of Hydrology, Vol. 128, Nos 1-2, June 1994, pp. 1-18.

     29. Stein, O.R., and P.Y. Julien, Sediment concentration below a free overfall, Journal of Hydraulic Engineering, ASCE, Vol. 120, No. 9, Sept. 1994, pp. 1043-1059.

     30. Julien, P.Y. and J. Wargadalam, Alluvial channel geometry: theory and  applications, Journal of Hydraulic Engineering, ASCE, Vol. 121, No. 4, April 1995, pp. 312-325.

     31. Julien, P.Y., B. Saghafian and F.L. Ogden, Raster-based hydrologic modeling of spatially-varied surface runoff, Water Resources Bulletin, AWRA, Vol. 31, No. 3, 1995 , pp. 523-536.

     32. Saghafian, B., P.Y. Julien and F.L. Ogden,  Similarity in catchment response 1. Stationary rainstorms, Water Resources Research, AGU, Vol. 31, No. 6, 1995, pp. 1533-1541.

     33. Ogden, F.L., J.R. Richardson, and P.Y. Julien,  Similarity in catchment response 2. Moving rainstorms, Water Resources Research, AGU., Vol. 31, No. 6, 1995, pp. 1543-1547.

     34. Julien, P.Y. and G.J. Klaassen, Sand-dune geometry in flooded rivers,  Journal of Hydraulic Engineering, ASCE, Vol. 121, No. 9, 1995, pp. 657-663.

     35. Saghafian, B. and P.Y. Julien, Time to equilibrium for spatially variable watersheds, Journal of Hydrology, 172, 1995, pp. 231-245.

     36. Kawai, S. and P.Y. Julien, Point bar deposits in narrow sharp bends, Journal of Hydraulic Research", IAHR, Vol. 34, No. 2, 1996, pp. 205-218.

     37. Julien, P.Y., Transforms for runoff and sediment transport, Journal of Hydrologic Engineering, ASCE, Vol. 1, No. 3, 1996, pp. 114-122.

     38. Doe III, W, B. Saghafian, and P.Y. Julien, Land-use impact on watershed response: the integration of two-dimensional hydrologic modelling and Geographic Information Systems, Hydrological Processes Journal, Vol. 10, 1996, pp. 1503-1511.

     39. Molnar, D.K. and P.Y. Julien, Estimation of upland erosion using GIS, Journal of Computers & Geosciences, Vol. 24, No. 2, 1998, pp. 183-192.

     40.  Julien, P.Y., D.K. Molnar, B.E. Johnson and P.G. Combs, Flood forecasting reaches new potential, EOS, AGU, Vol. 79, No. 14, April 7, 1998 and electronic file at http://www.agu.org/eos_elec/9727le.html.

     41. ASCE Task Committee on Hydraulics, Bank Mechanics, and Modeling of River Width Adjustment, River width adjustment. I: Processes and mechanisms, Journal of Hydraulic Engineering, ASCE, Vol. 124, No. 9, 1998, pp. 881-902.

     42.  ASCE Task Committee on Hydraulics, Bank Mechanics, and Modeling of River Width Adjustment, River width adjustment. II: Modeling, Journal of Hydraulic Engineering, ASCE, Vol. 124, No. 9, 1998, pp. 903-917.

     43.  May, D.R., and P.Y. Julien, Eulerian and Lagrangian correlation structures of convective rainstorms, Water Resources Research, AGU, Vol. 34, No. 10, 1998, pp. 2671-2683.

     44.  Julien, P.Y. and Y. Raslan, Upper-regime plane bed, Journal of Hydraulic Engineering, ASCE, Vol. 124, No. 11, November 1998, pp. 1086-1096.

     45.  Johnson, B.E., P.Y. Julien, D.K. Molnar and C.C. Watson, The Two-dimensional upland erosion model CASC2D-SED,  Journal of the American Water Resources Association, AWRA, Vol. 36,  No. 1, February 2000, pp. 31-42.

     46.  Molnar, D.K. and P.Y. Julien, Grid size effects on surface runoff modeling, Journal of Hydrologic Engineering, ASCE, Vol. 5, No. 1, 2000, pp. 8-16.

     47. Guo, J. and P.Y. Julien, Turbulent velocity profiles in sediment-laden flows, Journal of Hydraulic Research, IAHR, Vol. 39, No. 1, 2001, pp. 11-23.
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      Invited conference papers

     1. Simons, D.B. and P.Y. Julien. Engineering analysis of river meandering, Keynote paper in River Meandering, Proceedings of the ASCE Conference on Rivers '83, pp. 530-544.

     2. Frenette, M. and P.Y. Julien.  Computer modeling of  soil erosion and  sediment yield from large watersheds, Invited paper in the Proceedings  of the 27th Annual Convention of the Institution of Engineers, Pakistan,  Peshawar, 2-6 April, 1985, 21 p.  (Presented at Peshawar, Pakistan, and Cairo, Egypt.)

     3. Richardson, E.V., H.S. Woo and P.Y. Julien.  Research  trends in sedimentation,  Keynote Paper in Megatrends in Hydraulic Engineering, Colorado State University, 1986, pp.  299-330.

     4. Richardson, E.V. and P.Y. Julien.  Bed forms, fine sediments,  washload and sediment transport,  Invited paper, Third International  Symposium on River Sedimentation ISRS-III, Jackson, Mississippi, March  31-April 4, 1986, pp. 854-874.

     5. Frenette, M. and P.Y. Julien.  Advances in predicting  reservoir sedimentation,  General lecture, Third International  Symposium on River Sedimentation, ISRS-III, Jackson, Mississippi,  March 31-April 4, 1986, pp. 26-46.

     6. Julien, P.Y. and J.S. O'Brien, Selected notes on debris flow dynamics, Invited paper at the 1993 International Workshop on Debris Flow, September 6-8, Kagoshima, Japan, 1993, pp. 57-65.

     7. Julien, P.Y., Introduction to dynamics of debris flow, Invited general report on papers related to debris flow dynamics. Proc. IAHR International Workshop on Debris Flow, September 6-8, Kagoshima, Japan, 1993, 5p.

     8. Julien, P.Y. Notes on debris flow dynamics, Panelist at the Asia & Pacific Ocean International Conference on Volcanic Sediment Disaster Prevention, NHK Japan Broadcasting Corporation, Fukuoka Bureau, Sept. 9, 1993, Fukuoka, Japan, pp. 44-49.

     9. Julien, P.Y. and J.S. O'Brien, Rheology and modeling of mass movement deposits, Invited paper at the Pierre Beghin International Workshop on Rapid Gravitational Mass Movements, December 6-10, 1993, Grenoble, France, pp. 167-173.

     10. Julien, P.Y., Similitude and hydrologic scales for surface runoff, Invited speaker at the Front Range AGU Meeting, February 14-15, 1994, NCAR, Boulder, p.9.

     11. Julien, P.Y., Theoretically-derived regime river width, Invited speaker at the 1994 ASCE Hydraulics Conference, Buffalo, New York, August 1-5, pp. 949-953.

     12. Julien, P.Y., Dynamic hydrologic modeling of mountain streams, Invited speaker at the International Workshop on Floods and Inundations Related to Large Earth Movements", IAHR, Trento, Italy, October 4-7, 1994, pp. B5.1-10.

     13. Julien, P.Y., Similitude and hydrologic scales for surface runoff, Invited speaker at the Front Range AGU Meeting, February 13-14, 1995, Lory Student Center, CSU, Fort Collins.

     14. Julien, P.Y., Invited co-chair for Session 9 - Frontiers in Hydraulics: Computational Hydraulics, at the Iowa Hydraulics Colloquium: Issues and Directions in Hydraulics in honor of Professor J.F. Kennedy, May 1995.( see discussion # 26).

     15. Julien, P.Y.,Y. Raslan, Y.Q. Lan, and G. Berthault. Experimental mechanics of sand stratification, Invited speaker at the Workshop on "Structures Internes et Comportement des Suspensions Concentrées Géologiques", La Grande Motte, France, October 4-6, 1995, pp. 28.

     16.  Julien, P.Y., Runoff and Sediment Modeling with CASC2D, GIS and Radar Data, Invited speaker at the 3rd International Conference on Hydroscience and Engineering, Cottbus/Berlin, Germany, August 31- September 3, 1998, CD-ROM, parallel 15, 31.08.1998, 16:00-18:15.

     17.  Julien, P.Y., Laboratory Experiments and Field Observations on Grain Sorting, Invited speaker at the Conference on Granular Geomorphology, CECAM, Lyon, France, September 7-10, 1998, (1 p. abstract). 

      18.  Julien, P.Y.,How Do We Educate Our Future Rehabilitation Experts, Invited  paper from the Discussion Session Chairman at the Wetlands Engineering & River Restoration Conference, Engineering Approaches to Ecosystem restoration, Session L, ASCE, Denver, Colorado, March 23-27, 1998, pp.

     19.  Julien, P.Y and C. Leon, Mudfloods, mudflows and debris flows - classification, rheology and structural design, Invited paper at the International Workshop on Mudflows and debris flows, Caracas, Venezuela, November 27- December 1, 2000.
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      Papers in conference proceedings

     1. Frenette, M. and P.Y. Julien.  Méthode simplifiée de  prédiction d'érosion de bassin versant et d'apport solide en suspension  dans les cours d'eau nordiques,  Proceedings of the Second Hydrotechnical  Conference CSCE-QUEBEC, Sherbrooke, 1980, pp. 408-424.

     2. Julien, P.Y. and M. Frenette.  A model for predicting  suspended load in northern streams,  Proceedings of the Fourth Annual  AGU Front Range Branch Hydrology Days, Colorado State University,  April 1984, pp. 119-139.

     3. Frenette, M. and P.Y. Julien.  A computer model for  mapping soil erosion, Proceedings of the Annual Conference of the Canadian Society for Civil Engineering, CSCE, Halifax, May 23-25,  1984, pp. 543-564. 

     4. Julien, P.Y. and M. Frenette.  A model for predicting  suspended load in  northern streams,  Proceedings of the Annual Conference  on the Canadian Society of Civil Engineering, CSCE, Halifax, May 23-25,  1984, pp. 565-585.

     5. Frenette, M. and P.Y. Julien.  Within the hydrologic  cycle of a watershed.  Integration of erosion processes and sediment  load in mathematical models  for water quality,  Proceedings of the  Canadian Hydrology Symposium,  Laval University, Quebec, June 10-12,  1984, National Research Council, Canada, No. 15, Vol. 1, pp. 465-487. 

     6. O'Brien, J.S. and P.Y. Julien.  Physical properties  and mechanics of  hyperconcentrated sediment flows,  Proceedings of  the ASCE Specialty Conference on the Delineation of landslide, Flash  Flood and Debris Flow Hazards in Utah, 1985, Utah Water Research Lab.  Series UWRL/G-85/03, pp. 260-279.

     7. Julien, P.Y. and D.M. Hartley.  Stability of laminar  sheet flow,  Proceedings of the Hydrology Days and Rocky Mountain  Groundwater  Conference, AGU, Fort Collins, April 16-20, 1985, pp.  137-144.

     8. Julien, P.Y. and M. Frenette.  Erosion de bassin et  apport solide dans les  cours d'eau lors de la fonte de neige,  Proceedings  of the 7th Annual Hydrotechnical Conference, CSCE, Saskatoon, Saskatchewan,  May 27-31, 1985, pp. 21-40. 

     9. Julien. P.Y.  Theoretical analysis of sediment particles  in a Rankine combined vortex,  Proceedings of the 7th Annual Hydrotechnical Conference, CSCE, Saskatoon, Saskatchewan, May 27-31, 1985, pp. 89-106.

     10. Julien, P.Y. and M. Frenette.  Joint deterministic  and probabilistic  method for modelling rainfall erosion,  Fourth  International Hydrology Symposium, Fort Collins, Colorado, July 15-17,  1985, pp. 1012-1026.

     11. Julien, P.Y. and D.B. Simons.  Sediment transport capacity  equations for rainfall erosion,  Fourth International Hydrology Symposium.  Fort Collins, Colorado, July 15-17, 1985, pp. 988-1002.

     12. Julien, P.Y. and M. Frenette.  Predicting washload  from rainfall and snowmelt runoff,  Proceedings of the Third International  Symposium on River Sedimentation, ISRS-III, Jackson, Mississippi,  March 31-April 4, 1986, pp. 1259-1265.

     13. Dawod, A.M. and P.Y. Julien.  Analysis of daily rainfall  precipitation in North Iraq,  Proceedings of the Hydrology Days,  Fort Collins, AGU, April 15-17, 1986, pp. 189-197.

     14. Julien, P.Y. and D.M. Hartley.  Stabilité des écoulements  laminaires, CSCE Annual Conference, Toronto, May 14-18, 1986, Session 1 3.

     15. O'Brien, J.S. and P.Y. Julien.  Rheology of non-Newtonian  fine sediment mixture,  Proceedings of the ASCE Conference on Advancement  in Aerodynamics, Fluid Mechanics and Hydraulics, Minneapolis, June  4-6, 1986, pp. 989-996.

     16. Julien, P.Y. and M. Frenette.  Scale effects in predicting  soil erosion, International Symposium on Drainage Basin and Sediment  Delivery, IAHS, Albuquerque, NM, Aug. 4-8, 1986, pp. 253-259.

     17. Julien, P.Y.  Recent breakthroughs and prospective  modelling of soil  erosion and sediment transport in Canadian streams,  CSCE  Centennial Conference, Montreal, May, 1987, pp. 535-543.

     18. Williams, D.T. and P.Y. Julien.  On the selection of  sediment transport  equations,  Proceedings of the ASCE National Conference on Hydraulic Engineering, Williamsburg, 1987, pp. 925-929.

     19. Azuero, C. and P.Y. Julien.  Sensitivity analysis of  a stability factor for riprap design,  Proceedings of 8th Annual  AGU Front Range Branch Hydrology Days, Colorado State University,  Fort Collins, Colorado, April, 1988, pp. 174-184.

     20. Cline, T., A. Molinas, and P.Y. Julien.  A Geographic  Information System  for obtaining and organizing watershed data and  for preparing HEC-1 input  files,  Proceedings of the 8th Annual AGU  Front Range Branch Hydrology Days, Colorado State University, Fort  Collins, Colorado, April 1988, pp. 81-90.

     21. Julien, P.Y.  Downstream hydraulic geometry of noncohesive  alluvial  channels,  International Conference on River Regime, Wallingford, England, May 18-20, 1988, pp. 9-16.

     22. Julien, P.Y.  Upland erosion estimates based on rainfall  depth,  ASCE National Conference on Hydraulic Engineering, August  8-12, 1988, Colorado Springs, Colorado, pp. 364-368.

     23. Richardson, J.R. and P.Y. Julien.  One dimensional  modeling of moving rainstorms,  International Conference on Channel  Flow and Catchment Runoff, Charlottesville, Virginia, May 1989, pp. 27-35.

     24. Williams, D.T. and P.Y. Julien.  Examination of stage-discharge  relationships of compound/composite channels,  International Conference on Channel Flow and Catchment Runoff, Charlottesville, Virginia, May 1989, pp. 478-488.

     25. Julien, P.Y., Prospective analysis of alluvial channel processes and geometry, International ASAE-CSAE Summer Meeting, Québec, Canada, June 1989, Paper 892105, 9p.

     26. Simons, R.J., R.A. Musette, P.Y. Julien and D.B. Simons. Modeling  resistance to flow in open channels, International ASAE-CSCE Summer Meeting, Québec, Canada, June 1989, Paper 892106, 23p.

     27. Julien, P.Y. Géometrie hydraulique des cours d'eau à lit alluvial,  Proceedings B-Fluvial Hydraulics, 23rd IAHR Congress, Ottawa, Canada, August 1989, pp. B-9-16.

     28. Woo, H.S. and P.Y. Julien, Mathematical models for turbulent shear stress  in sediment-laden flows, Proceedings of the International Symposium on Sediment Transport Modeling, ASCE, New Orleans, August 1989, pp. 203-208.

     29. Julien, P.Y. Laboratory analysis of hyperconcentrations, Proceedings of the International Symposium on Sediment Transport Modeling, ASCE, New Orleans, August 1989, pp. 681-686.

     30. Julien, P.Y.  Soil losses from upland areas,  Proceedings of the Fourth International Symposium on River Sedimentation,  Beijing, China, 1989, Vol. 1, pp. 82-91.

     31. Julien, P.Y. and M. Frenette.  Mapping erosion losses  from large  watersheds,  Proceedings of the Fourth International  Symposium on River  Sedimentation, Beijing, China, 1989, Vol. 1, pp. 92-99.

     32. Stein, O.R. and P.Y. Julien.  Physical modelling of headcut migration, Proceedings of 10th Annual  AGU Front Range Branch Hydrology Days,  Fort Collins, Colorado, April 1990, pp. 162-172.

     33. Saghafian, B. and P.Y. Julien.  Resistance equations for laminar sheet  flow, Proceedings of 10th Annual  AGU Front Range Branch Hydrology Days, Fort Collins, Colorado, April 1990, pp. 173-184.

     34. May, D. and P.Y. Julien, Analysis of raingage network resolution with  spatial statistics, ASCE Specialty Conference on Watershed Management, Durango, Colorado, July 1990, pp. 38-47.

     35. Marcus, K.B. and P.Y. Julien, Two-dimensional modeling of overland flow, International Symposium on the Hydraulics/Hydrology of Arid Lands, ASCE, San Diego, August 1990, pp. 256-261.

     36. Stein, O.R., and P.Y. Julien, Sediment concentration measurement below  small headcuts, National Conference on Hydraulic Engineering, ASCE, San Diego, August 1990, pp. 293-298.

     37. Gonzalez del Tanago,M., P.Y. Julien, and J. Redondo, Influencia de la escala de trabajo en la estimacion de la erosion mediante el modelo USLE, Reunion Nacional de Geomorfologia, Teruel, Spain, September 1990, pp. 607-617.

     38. Berthault, G., F. Crouzel, and P.Y. Julien, Signification des dépots  séquentiels: conséquences sur l'interprétation des règles de la sédimentologie,  3e Congrès Français de Sédimentologie, Brest, France, November. 1991, pp. 33.

     39. Stein, O.R., and P.Y. Julien, Measurement of rill erosion sediment  detachment, ASAE Summer Meeting, Albuquerque, New Mexico, June 1991, Paper # 912086, 8p.

     40. Julien, P.Y., Laboratory experiments on sand grain sorting, Grain Sorting Seminar, Ascona, October 1991, pp. 309-404.

     41. Julien, P.Y. and G. Berthault, Expériences fondamentales de stratification, 4e  Congrès Francais de Sédimentologie, Livre des Résumés, ASF, Lille, France, November 17-19, 1993, pp. 191-192.

     42. Julien, P.Y., Theoretically-derived regime river width, National Conference on Hydraulic Engineering, ASCE, Buffalo, N.Y., August 1-5, 1994, Volume 2, pp. 949-953.

     43. Julien, P.Y.,Y.Q. Lan, Y. Raslan, and G. Berthault, Experimental  mechanics of sand stratification, Publication ASF No. 22, 5e Congrès Français de Sédimentologie, Aix-les-Bains, April 24-26, 1995, p. 84.

     44. Julien, P.Y., Teaching sedimentation in the 21st century, Sixth Federal Interagency Sedimentation Conference, Sedimentation Technologies for Management of Natural Resources in the 21st Century, Las Vegas, March 10-14, 1996, Vol. 2, pp. VI-16-21.

     45. Noss, D.K. and P.Y. Julien.  Calculating upland erosion using GIS-GRASS, Proceedings of the Hydrology Days, AGU, Fort Collins, April 15-18, 1996,  pp. 371-382.

     46. Williams, D.T. and P.Y. Julien, Selection of sediment transport relations, Proceedings of the North American Water and Environment Congress and Destructive Water, ASCE, Anaheim, California, June 22-28, 1996, paper available on CD-ROM, 6p.

     47. Frenette M. and P.Y. Julien, Physical processes governing reservoir sedimentation, Proceedings of the International Conference on Reservoir Sedimentation, Volume 1, Colorado State University, Fort Collins, Colorado, September 11-16, 1996, pp. 121-142.

     48. Julien, P.Y., Y.Q. Lan and Y. Raslan, Experimental mechanics of sand  stratification, Proceedings of the Third International Conference on Powders and Grains, Durham, North Carolina, May 18-22, 1997, pp. 487-490.  (refereed conference)

     49. Stein, O.R., P.Y. Julien and C.V. Alonso, Headward advancement of incised channels, Conference on Management of Landscapes Disturbed by Channel Incision: Stabilization,  Rehabilitation, and Restoration, May 20-22, 1997, Oxford, Mississippi, pp. 497-502.

     50. Molnar, D.K., P.Y. Julien and B.E. Johnson, Advances in surface runoff  modeling on Goodwin Creek, Conference on Management of Landscapes Disturbed by Channel Incision: Stabilization, Rehabilitation, and Restoration, May 20-22, 1997, Oxford Mississippi, pp. 621-626.

     51. Johnson, B.E., P.Y. Julien and D.K. Molnar, Advances in soil erosion  modeling on Goodwin Creek, Conference on Management of Landscapes Disturbed by Channel Incision: Stabilization, Rehabilitation, and Restoration, May 20-22, 1997, Oxford Mississippi, pp. 1100-1105.

     52. Doe III, W.W., P.Y. Julien and F.L. Ogden, Maneuversheds and watersheds:  modeling the hydrologic effects of mechanized training on military lands, AWRA/UCOWR Symposium on Water Resources Education, training, and practice: Opportunities for the Next Century, Keystone, Colorado, June 29 to July 3, 1997, pp. 767-776.

     53. Julien, P.Y. and J.S. O'Brien, On the importance of mud and debris flow  rheology in structural design, First International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, ASCE, San Francisco, August 7-9, 1997, pp. 350-359.

     54. O'Brien, J.S. and P.Y. Julien, On the importance of mudflow routing,  First International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, ASCE, San Francisco, August 7-9, 1997, pp. 677-686.

     55. Julien, P.Y. , S. Kawai and D. J. Anthony, Grain sorting in meander bends, XXVII IAHR Congress, San Francisco, August 10-15, 1997, pp. 1426-1432.

     56. Julien, P.Y., Rainfall events and surface runoff modeling, The Ninth World Water Congress, No. 9, Vol. 1, IWRA, September 1-6, 1997, Montréal, Canada, Extended Abstract pp. 133 and 8p. paper.

     57. Johnson, B.E., P.Y. Julien and  C.C. Watson, Development of a storm-event  based two-dimensional model (CASC2D-SED), First Federal Interagency Hydrologic Modeling Conference, Las Vegas, April 19-23, 1998, Section 3,  pp. 39-46.

     58. Doe III, W.W., P.Y. Julien, F.L. Ogden and B.E. Johnson, Spatially  distributed modeling of the hydrologic effects of mechanized maneuvers on military training lands, First Federal Interagency Hydrologic Modeling Conference, Las Vegas, April 19-23, 1998, Section 8, pp. 27-34.

     59. Kodoatie, R.J., D.B. Simons, P.Y. Julien and M.L. Albertson, Prediction of sediment transport rate in irrigation canals using modified Laursen technology, Challenges Facing Irrigation and Drainage in the New Millennium, Proc., 2000 USCID International Conference, Vol. II, June 2000,  pp. 237-258.

     60.  Albertson, M.L., C.C. Baggs, L.J. Harrison, P.Y. Julien, J. Liou, R.A. Mussetter, E.V. Richardson, D.B. Simons, and W.A. Thomas, Resistance coefficients use and misuse in assessing average velocities in open alluvial channels, ASCE Specialty Conference, Seattle Washington, August 8-11, 1999.

      Julien, P.Y., Rivers bring together geomorphologists and engineers, Symposium on Applying Geomorphology to Environmental Management, Fort Collins, November 1-2, 1996, pp. ( in press).

     Saghafian, B., H.M. Rajaie and P.Y. Julien, A spatial travel-time method for watershed routing, 4th International Conference on Integrating GIS and Environmental Modeling (GIS/EM4) Problems, Prospects and Research Needs, Banff, Alberta, Canada, September 2-8, 2000, (submitted).
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      Technical Reports

     1. Frenette, M., P.Y. Julien, et al.  Les caractéristiques  physiques de la rivière Matamek et de son bassin de drainage,  CENTREAU  Report, CRE-75-02, February 1975, 74 p. 

     2. Frenette, M., P.Y. Julien, et al.  Analyse hydro-physique  de la rivière  Matamek et analyse des possibilités de créer des frayères artificielles, CENTREAU Report, CRE-76-01, March 1976, 44 p. 

     3. Frenette, M., P.Y. Julien, et al.  Caractéristiques  d'écoulement en  relation avec la productivité et la survie des salmonidés  dans la rivière  Matamek,  CENTREAU Report, CRE-78-01, January 1979, 43 p.

     4. Verrette, J.Ls. and P.Y. Julien.  Laboratoire de Génie  Civil I, Lecture Notes.  BCE-80-03, Department of Civil Engineering,  Laval University,  January 1980. 

     5. Frenette, M. and P.Y. Julien.  Rapport synthèse sur  les caractéristiques  hydro-physiques du bassin de la rivière Matamek,  Preliminary  Report,  CENTREAU, CRE-80-06, March 1980, 286 p. 

     6. Frenette, M. and P.Y. Julien.  Etude hydro-dynamique  du site  d'installation d'une barrière-à-saumons sur la rivière Mitis,  Hydrotech Report, March 1981. 

     7. Julien, P.Y.  Preliminary report on the sedimentation  of the Molineros  Reservoir in Bolivia,  Internal Report for Hydrotech, April 1983, 147 p.

     8. Julien, P.Y.  Analyse sédimentologique de la rivière-à-Mars,  Internal report for CENTREAU, Sept. 1983, 27 p. 

     9. Thorne, E.R., S. Rais, L.W. Zevenbergen, J.B.  Bradley  and P.Y. Julien.  Measurement of bend flow hydraulics on the Fall  River at low stage,  Water Resources Field Support Laboratory Report  83-9P, Colorado State University, 1983, 48 p.

     1 10. Julien, P.Y. and D.B. Simons.  Analysis of hydraulic  geometry  relationships in alluvial channels,  Report CER83-84PYJ-DBS45,  Colorado State University, April 1984, 47 p.

     11. Julien, P.Y. and D.B. Simons.  Analysis of sediment  transport equations  for rainfall erosion,  Report CER83-84PYJ-DBS52,  Colorado State University, June 1984, 46 p.

     12. Julien, P.Y. Planform geometry of meandering alluvial channels, Report CER84-85PYJ5, Colorado State University, May 1985, 49p.

     13. Julien, P.Y. and D.M. Hartley.  Formation of roll waves  in laminar sheet flow,  Report CER84-85PYJ-DMH18, Colorado State  University, January 1985, 38 p.

     14. Julien, P.Y.  Motion of sediment particles in a Rankine  combined vortex,  Report CER84-85PYJ6, Colorado State University, May 1985, 37 p.

     15. Frenette, M. and P.Y. Julien.  Case studies in reservoir  sedimentation, Lecture notes for the Joint IEP-CSCE Workshop on Sedimentation  in Rivers at Tarbela Centre, Pakistan, April 6, 1985, 27 p.

     16. Julien, P.Y., Editor.  Essays on river mechanics,  Report  CER85-86PYJ28, Colorado State University, May 1986, 181 p.

     17. Julien, P.Y., Editor.  Essays on river mechanics,  Report CER86-87PYJ-HY1, Colorado State University, May 1987, 99 p.

     18. Lan, Y.Q. and P.Y. Julien.  Research review on hyperconcentrated  flows,  Report CER86-87PYJ-HY2, Colorado State University, June 1987,  47 p.

     19. Julien, P.Y.  Analyse des coefficients de frottement  dans les conduites, Unpublished report for Tubecon, January 1988, 22 p. 

     20. Julien, P.Y., Editor.  Essays on river mechanics,  Report  CER87-88PYJ-HY1, Colorado State University, April 1988, 162 p.

     21 Julien, P.Y., C.J. Moen and G.U. Sunada, A one-dimensional finite element model for overland flow simulation - FEM1U User's Manual, Report CER87-88GEO6, Colorado State University, April 1988, 60p.

     22. Julien, P.Y., G.E. Moglen and G.U. Sunada. A finite element model for  spatially varied overland flow simulation - CASC User's Manual, Report CER87-88GEO7, Colorado State University, October 1988, 52p.

     23. Julien, P.Y. and V.C. Santoro, Literature review on local scour at bridge piers, unpublished Report, January 1989, 65p.

     24. Julien, P.Y. and Y.Q. Lan, Laboratory analysis of hyperconcentrations, Report CER88-89PYJ-YL11, Colorado State University, February 1989, 129p.

     25. Julien,P.Y. and Y.C. Chen, A short report about the experiment of lamination in a small flume, unpublished Report, March 1989, 32p.

     26. Molinas, A.,G.W. Choi, and P.Y. Julien, KINSC User's Manual, kinematic wave models for flood routing in a stream channel, Report CER88-89AM-GWC-PYJ12, Colorado State University, March 1989, 47p.

     27. Julien, P.Y. and Y.C. Chen, Experimental study of horizontal lamination in  a recirculating flume, Report CER88-89PYJ-YC14, Colorado State University, May 1989, 63 p.

     28. Julien, P.Y. and G.E. Moglen, The influence of spatial variability of  hydrologic parameters on simulated overland flow hydrographs, Report CER89-90PYJ-GEM1, Colorado State University, July 1989, 97p.

     29. Julien P.Y. and Y.Q. Lan, Experimental formation of alluvial deposits in a  wide rectangular flume, Report CER89-90PYJ-YQL2, Colorado State University, July 1989, 29p.

     30. Julien,P.Y. and Y.C. Chen, Experimental study of the deposition and drying of Bijou Creek sand in a recirculating flume, Report CER88-89PYJ-YCC15, Colorado State University, July 1989, 35p.

     31. Saghafian, B., and P.Y. Julien. Resistance to sheet flow, Center for Geosciences, Report CER88-89BS-PYJ13, Colorado State University, January 1989, 84p.

     32. Julien, P.Y. and Y.Q. Lan, Sedimentation of sand mixtures in a vertical  cylinder, Report CER89-90PYJ-YQL13, Colorado State University, March 1990, 48p.

     33. Julien, P.Y., Editor,  Essays on river mechanics,  Report CER89-90PYJ-14, Colorado State University, May 1990, 88p.

     34. Julien, P.Y. and Y.Q. Lan, Laboratory experiments on sedimentation, lamination and desiccation of sediment mixtures, Report CER89-90PYJ-15, Colorado State University, May 1990, 165p.

     35. Julien, P.Y., and B. Saghafian, A two-dimensional watershed rainfall-runoff model, Report CER90-91PYJ-BS-12, March 1991, 66p.

     36. Julien, P.Y., Editor,  Essays on river mechanics,  Report CER90-91PYJ-13, Colorado State University, May 1991, 136p.

     37. Julien, P.Y., Study of bedform geometry in large rivers , Report Q 1386,  Delft Hydraulics, June 1992, 78p.

     38. Vonder Haar, T.H., J.L. Behunek and Principal Investigators including P.Y. Julien, Final Research Report: Phase I The Center for Geosciences,  Final report, 9/1/86 - 6/15/92 on Geosciences Center research ARO Grant DAAL03-86-K-0175, CIRA, Colorado State University, November 1992, 195p.

     39. Julien, P.Y. Editor, Essays on river mechanics, Report CER92-93PYJ-5, Colorado State University, April 1993, 98p.

     40. Julien, P.Y. and Y. Raslan, Laboratory notes on stratification of sands, Report CER93-94PYJ-1, Colorado State University, November 1993, 77p.

     41. Julien, P.Y., CE 300 Elementary fluid mechanics laboratory manual, Unpublished Laboratory Instruction Manual, Spring 1994, 54p.

     42. Julien, P.Y., Selected papers 1984-1994, Report CER94-95-PYJ-1, September 1994, 452p.

     43. Julien, P.Y. Editor, Essays on river mechanics, Report CER94-95PYJ-3, Colorado State University, April 1995, 145p.

     44. Julien, P.Y., C.I. Meier and B. Blackard, Laboratory measurements of bedload particle velocities, Report CER95-96PYJ-CIM-BB1, Colorado State University, November 1995, 334p.

     45. Julien, P.Y. Editor, Essays on river mechanics, Report CER95-96PYJ-2, Colorado State University, April 1996, 87p.

     46. Vonder Haar, T.H. and Principal Investigators including P.Y. Julien, DoD Center for Geosciences - Phase II  Annual Report (1994-1995) under DoD Grant # DAAH04-94-G-0420. CIRA, Colorado State University, March 1996, 126 p.

     47. Julien, P.Y. Editor, Essays on river mechanics, Report CER96-97PYJ-1, Colorado State University, April 1997, 224p.

     48. Julien, P.Y., Review of Aligidir Phase II Pre-design of Structures, unpublished report prepared for Natural Resources Consulting Engineers, Inc., August 1997, 3p.

     49. Julien, P.Y. and J. Guo, Transport velocities of individual particles over smooth open-channel bed, Report CER97-98PYJ-GJ1, Colorado State University, October 1997, 48p.

     50. Julien, P.Y., Sediment transport analysis of the Bureau of Reclamation siphon on Whitewood Creek, South Dakota, unpublished report prepared for ISSI, Inc., April 1998, 17p.

     51. Julien, P.Y. Editor, Essays on river mechanics, Report CER97-98PYJ-1, Colorado State University, April 1998, 70p.

     52. Vonder Haar, T.H. and Principal Investigators including P.Y. Julien, DoD Center for Geosciences - Phase II  Annual Report (1996-1997), under DoD Grant # DAAH04-94-G-0420. CIRA, Colorado State University, April 1998, 122p.

     53.  Julien, P.Y., Sediment Transport Analysis of the Bureau of Reclamation Siphon on Whitewood Creek, South Dakota, Appendix B in Screening Level Risk Assessment for Whitewood Creek Siphon, South Dakota, report prepared by ISSI for U.S. Environmental  Protection Agency, June 1998, 17 p.

     54. Julien, P.Y., Revised sediment yield at L-Bar, unpublished letter report for the Nuclear Regulatory Commission, October 1998, 8p.

     55. Guo, J.J., and P.Y. Julien, Solution Manual for Erosion and Sedimentation, Unpublished manuscript, January 1999, 114 p.

     56. Leon, C., G. Richard, T. Bauer and P.Y. Julien, Middle Rio Grande, Cochiti to Bernalillo Bridge hydraulic geometry, discharge and sediment data base and report - Volume I cross-section geometry data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 1999, 242 p.

     57. Leon, C., G. Richard, T. Bauer and P.Y. Julien, Middle Rio Grande, Cochiti to Bernalillo Bridge hydraulic geometry, discharge and sediment data base and report - Volume II daily mean discharge plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 1999, 39 p.

     58. Leon, C., G. Richard, T. Bauer and P.Y. Julien, Middle Rio Grande, Cochiti to Bernalillo Bridge hydraulic geometry, discharge and sediment data base and report - Volume IIIA bed material data, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 1999, 120 p.

     59. Leon, C., G. Richard, T. Bauer and P.Y. Julien, Middle Rio Grande, Cochiti to Bernalillo Bridge hydraulic geometry, discharge and sediment data base and report - Volume IIIB suspended sediment concentration data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 1999, 206 p.

     60. Leon, C., G. Richard, T. Bauer and P.Y. Julien, Middle Rio Grande, Cochiti to Bernalillo Bridge hydraulic geometry, discharge and sediment data base and report - Volume IIIC suspended sediment discharge data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 1999, 193 p.

     61. Leon, C., G. Richard, T. Bauer and P.Y. Julien, Middle Rio Grande, Cochiti to Bernalillo Bridge hydraulic geometry, discharge and sediment data base and report - Volume IIID suspended sediment particle size data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 1999, 124 p.

     62.  Julien, P.Y. Editor, Essays on river mechanics, Report CER98-99PYJ-1, Colorado State University, April 1999, 117p.

     63. Bauer, T., C. Leon, G. Richard and P.Y. Julien, Middle Rio Grande, Bernalillo Bridge to San Acacia, hydraulic geometry, discharge and sediment data base and report - Volume I cross-section geometry data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 2000, 212 p.

     64. Bauer, T., C. Leon, G. Richard and P.Y. Julien, Middle Rio Grande, Bernalillo Bridge to San Acacia, hydraulic geometry, discharge and sediment data base and report - Volume II - daily mean discharge plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 2000, 75 p.

     65. Bauer, T., C. Leon, G. Richard and P.Y. Julien, Middle Rio Grande, Bernalillo Bridge to San Acacia, hydraulic geometry, discharge and sediment data base and report - Volume IIIA - bed material data, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 2000, 84 p.

     66. Bauer, T., C. Leon, G. Richard and P.Y. Julien, Middle Rio Grande, Bernalillo Bridge to San Acacia, hydraulic geometry, discharge and sediment data base and report - Volume IIIB - suspended sediment concentration data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 2000, 319 p.

     67. Bauer, T., C. Leon, G. Richard and P.Y. Julien, Middle Rio Grande, Bernalillo Bridge to San Acacia, hydraulic geometry, discharge and sediment data base and report - Volume IIIC - suspended sediment discharge data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 2000, 217 p.

     68.  Bauer, T., C. Leon, G. Richard and P.Y. Julien, Middle Rio Grande, Bernalillo Bridge to San Acacia, hydraulic geometry, discharge and sediment data base and report - Volume IIID - suspended sediment particle size data and plots, prepared for the U.S. Bureau of Reclamation, Albuquerque, NM., January 2000, 43 p.

     69. Warren, S.D., H. Mitasova, M.R. Jourdan, W.M. Brown, B.E. Johnson, D.M. Johnson, P.Y. Julien, L. Mitas, D.K. Molnar and C.C. Watson, Digital terrain modeling and distributed soil erosion simulation/measurement for minimizing environmental impacts of military training (CS-752), Report CEMML TPS 00-2, submitted to SERDP, Arlington, Virginia, February, 2000, 65 p.

     70. Richard,G., C. Leon and P.Y. Julien, Bernardo Reach geomorphic analysis - Middle Rio Grande, New Mexico, Report prepared for the U.S. Bureau of Reclamation, Albuquerque, new Mexico, June 2000, 67p.

     71. Leon, C., and P.Y. Julien, Rio Puerco Reach channel width analysis - Middle Rio Grande, New Mexico, Report prepared for the U.S. Bureau of Reclamation, Albuquerque, New Mexico, August 2000, 13 p.

     72. Julien, P.Y., Bed resistance to flow of the Bovenrijn-Waal Rivers during the 1998 flood. Delft Hydraulics Report Q2691 prepared for DG-Rijkswaterstaat RIZA, August 2000, 70 p.

     73. Leon, C. and P.Y. Julien, Bernalillo bridge Reach - Highway 44 bridge to Cross section CO-33 geomorphic analysis, Report prepared for the U.S. Bureau of Reclamation, Albuquerque, New Mexico, December 2000, 81p.
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