Contact InformationOffice: Room 1405, SSC
Tel: 519 661-2111, 85026
Fax: 519 661-3750
Recent and current projects include: bed material transport in gravel rivers and mechanics of braided rivers (field site in Canadian Rockies plus small-scale model studies); stream morphology, land-use impacts on river systems, stream habitat and stream channel design (southern Ontario); regional denudation and sediment sources in glaciated landscapes; climate change impacts on fluvial processes in Canada.
Leduc, P., Peirce, S., Ashmore, P. (2019) 'Short Communication: Challenges and applications of structure-from-motion photogrammetry in a physical model of a braided river.' Earth Surface Dynamics. 7, 97-106. https://doi.org/10.5194/esurf-7-97-2019.
Peirce, S., Ashmore, P., Leduc, P. (2019) 'Evolution of grain size distributions and bed mobility during hydrographs in gravel-bed braided rivers.' Earth Surface Processes and Landforms. 44: 304– 316. https://doi.org/10.1002/esp.4511.
Middleton, L., Ashmore, P., Leduc, P., Sjogren, D. (2018) 'Rates of planimetric change in a proglacial gravel-bed braided river: field measurement and physical modeling.' Earth Surface Processes and Landforms. DOI:10.1002/esp.4528.
Peirce, S., Ashmore, P., Leduc, P. (2018) 'Evolution of grain size distributions and bed mobility during hydrographs in gravel-bed braided rivers'. Accepted with revisions, January 2018. Earth Surface Processes and Landforms. 43, 2371–2383. DOI: 10.1002/esp.4400.
Peirce, S., Ashmore, P., Leduc, P. (2018) 'Variability in the morphological active width: results from physical models of gravel-bed braided rivers.' Earth Surface Processes and Landforms. DOI: 10.1002/esp.4400.
Ashmore, P., Peirce, S., & Leduc, P. (2018) 'Expanding the “Active Layer”: Discussion of Church and Haschenburger (2017) What Is the “Active Layer”?' Water Resources Research 53, 5–10, Doi:10.1002/2016WR019675. Water Resources Research, 54, 1425–1427. https://doi.org/10.1002/2017WR022438.
Leduc, P., Ashmore, P. Sjogren, D. (2017) 'Technical note: Ground-based remote sensing of a mountain stream: measuring stage and water width using a simple time-lapse camera.' Hydrology and Earth System Science. https://doi.org/10.5194/hess-2017-285.
Gardner, T., Ashmore, P., Leduc, P. (2017) 'Morpho-sedimentary characteristics of proximal gravel braided river deposits in a Froude-scaled physical model.' Sedimentology, 65, 877-896. DOI:10.1111/sed.12409.
Pike, L., Gaskin, S., and Ashmore, P. (2017) 'Flume tests on fluvial erosion mechanisms in till‐bed channels.' Earth Surf. Process. Landforms, 43: 259–270. DOI: 10.1002/esp.4240.
Ashmore, P. and Dodson, B. (2016) 'Urbanizing physical geography.' The Canadian Geographer. DOI: 10111/cag12318.
Thayer, J.B., Ashmore, P. (2016) 'Floodplain morphology, sedimentology, and development processes of a partially alluvial channel.' Geomorphology, 269, 160-174. http://dx.doi.org/10.1016/j.geomorph.2016.06.040.
Métivier, F., Devauchelle, O., Chauvet, H., Lajeunesse, E., Meunier, P., Blanckaert, K., Ashmore, P., Zhang, Z., Fan, Y., Liu, Y., Dong, Z., Ye, B. (2016) 'Geometry of meandering and braided gravel-bed threads from the Bayanbulak Grassland, Tianshan, P. R. China.' Earth Surface Dynamics, 4, 273-283.
Leduc, P. Ashmore, P., Gardner, J.T. (2015) 'Grain sorting in the morphological active layer of a braided river physical model.' Earth Surface Dynamics, 3, 577-585.
Ashmore, P. (2015) Towards a socio-geomorphology of rivers. Geomorphology, 241, 149-156.
Bennett, S., Ashmore, P., McKenna-Neuman, C. (2015) 'Transformative geomorphic research using laboratory experimentation.' Geomorphology, 244, 1-8.
Kasprak, A., Wheaton, J, Ashmore, P., Hensleigh, J., Peirce, S. (2015) 'The relationship between particle travel distance and channel morphology: results from physical models of braided rivers.' Journal of Geophysical Research-Earth Surface, 120, 55–74.
Ashmore, P. and Rennie, C.D. (2012) 'Gravel-bed rivers: from particles to patterns.' Earth Surface Processes and Landforms 38: 217-220.
Vocal-Ferencevic, M. and Ashmore, P. (2012) 'Creating and evaluating digital elevation model-based stream-power map as a stream assessment tool.' River Research and Applications 28(9): 1394-1416.
Liu, X., Parker, G., Czuba, J., Oberg, K., Mier, J.M., Best, J.L., Parsons, D.R., Ashmore, P. and Garcia, M.H. (2012) 'Sediment Mobility and Bed Armoring in the St. Clair River: Insights from hydrodynamic modeling.' Earth Surface Processes and Landforms 37: 957-970.
Czuba, J.A., Best, J.L., Oberg, K.A., Parsons, D.R., Jackson, R.P., Garcia, M.H. and Ashmore, P. (2011) 'Bed morphology, sediment transport and flow structure at the outlet of Lake Huron and in the upper St. Clair River.' Journal of Great Lakes Research 37: 480-493.
Ashmore, P., Bertoldi, W. and Gardner, J.T. (2011) 'Active width of gravel-bed braided rivers.' Earth Surface Processes and Landforms 36: 1510-1521.
Gardner, J.T. and Ashmore, P. (2011) 'Geometry and grain size characteristics of the basal surface of a braided river deposit.' Geology 39: 247-250.
Ashmore, P. (2009) 'The intensity and characteristic length of braided channel patterns.' Canadian Journal of Civil Engineering 36(10): 1656-1666.
Bertoldi, W., Ashmore, P. and Tubino, M. (2009) 'A method for estimating the mean bed load flux in braided rivers.' Geomorphology 109, 330-340.
Hundey, E. and Ashmore, P. (2009) 'Length scale of braided river morphology.' Water Resources Research 45: W08409.
Egozi, R. and Ashmore, P. (2009) 'Experimental analysis of braided channel pattern response to increased discharge.' Journal of Geophysical Research-Earth Surface 114: F02012.
Ashmore, P., Biron, P., Eaton, B. and Rennie, C. (2009) 'Canadian research on fluvial sediment transport since 2003.' Canadian Water Resources Journal 34: 149-162.
Egozi, R. and Ashmore, P. (2008) 'Defining and measuring braiding intensity.' Earth Surface Processes and Landforms 33, 2121-2138.
Chapters in Books
Ashmore, P. (2018) 'Transforming Toronto’s rivers: a socio-geomorphic perspective' in R. Lave, C. Biermann, S. Lane (Eds). Handbook of Critical Physical Geography (Palgrave, New York) 23: 485- 511.
McKenna-Neumann, C., Ashmore, P., Bennett, S. (2013) 'Laboratory and Experimental Geomorphology: Examples from Fluvial and Aeolian Systems' in Treatise on Geomorphology eds J. Shroder, A.R. Orme and D. Sack (Academic Press: San Diego, CA) 1: 325-328 Invited.
Ashmore, P. (2013) 'Morphology and Dynamics of Braided Rivers' in Treatise on Geomorphology eds J. Schroder Jr. and E. Wohl (Academic Press, San Diego) 9: 289-312.
Ashmore, P. and Garcia, M. (2009) 'St. Clair River Sediment Regime' in Impacts on Upper Great Lakes Water Levels: St. Clair River Final Report (International Upper Great Lakes Study (IUGLS), International Joint Commission) 4, 57-84.
Ashmore, P. and Gardner, J.T. (2008) 'Unconfined confluences as elements of braided river morphology' Submitted for River Confluences, Tributaries and the Fluvial Network eds S. Rice, A. Roy and B. Rhoads (Wiley, Chichester) 7, 119-143.
Gravel-bed Rivers: Processes, tools environments, (2012). M. Church, A. Roy, P. Biron (Editors); P. Ashmore, N. Bergeron, T. Buffin-Belanger, C. Rennie (Associate Editors), Chichester, Wiley Blackwell, 563p.
|L. Middleton||Current||Fluvial Geomorphology|
|S. Peirce||2017||Morphological Active width and bedload flux in gravel-bed braided rivers|
|J.T. Gardner||2009||Morpho-dynamics and sedimentology of confluences in gravelly braided rivers|
|R. Egozi||2006||Channel pattern variation in braided rivers|
|A. Doeschl||2002||Assessing braided river dynamics with a cellular model|
|R. Pryce||2001||Morphological control of bedload transport in modelled gravel-bed rivers|
|D. Boyes||1999||Morphometry and lake development on the Mackenzie Delta, NMT|
|K. Goguen||Current||The impact of large wood on bed sediment retention on urban streams|
|R. McQueen||Current||Sediment supply and sediment transportation dynamics|
|D. Barr||2017||The Effects of Urbanization on Channel Morphology in a Small Catchment|
|J. Howett||2017||Fluvial Geomorphology|
|T. Hrytsak||2012||Alluvial Cover Dynamics in a Semi-alluvial Channel: A Case Study of Medway Creek, London, ON|
|N. Sampson||2011||The Use of Geomorphic Principles in Natural Channel Design: The State of River Restoration Practice in Southern Ontario, Canada|
|J. McDonald||2011||Response of River Channel Morphology to Urbanization: The Case of Highland Creek, Toronto, Ontario, 1954-2005|
|M. Ferencevic||2008||Stream power analysis for stream stability assessment|
|F. Varkaris||2002||Variability in sediment transport estimates, Sunwapta River|
|S. Baxter||2001||Use of stream for power for assessing stream channel stability|
|J.B. Lindsay||2000||Error in measurement of river bed topography and topographic change|
|G.E. Foster||1998||Morphology of three semi-alluvial stream channels in southern Ontario|
|B.D. Kussner||1995||Variation of bedload transport in Sunwapta River, Alberta|
|D. Jackson||1994||The sedimentology of braided gravel-bed rivers|
|L.C. Chew||1994||Channel adjustments in a pro-glacial stream|
|J.J.W. Luce||1994||Confluence zone sedimentation processes|
|J. Goff||1991||Braiding: bed sediment transport and morphological change|
|F.M. Conly||1990||Patterns of bar development and sand-flat initiation in the South Saskatchewan River|
GEO 3334A - Geomorphology of River Channels
GEO 9998 - Debates in Geographic Thoughts