Peter Ashmore
Professor
Research Interests
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.
Publications (past 7 years)
Refereed Journals
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
Vocal-Ferencevic, M. and Ashmore, P. 2011 'Creating and evaluating dem-based stream power maps as a stream assessment tool' River Research and Applications DOI: 10.1002/rra.1523
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 doi 10.1130/G31639
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 oad 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, doi:10.1029/2008WR007521
Egozi, R. and Ashmore, P. 2009 'Experimental analysis of braided channel pattern response to increased discharge' Journal of Geophysical Research-Earth Surface 114: F02012, doi:10.1029/2008JF001099
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
Shugar, D., Kostaschuk, R., Ashmore, P., Desloges, J. and Burge, L. 2007 'In situ jet testing of the erosional resistance of cohesive streambeds' Canadian Journal of Civil Engineering 34, 1-4
Ashmore, P and Sauks, E. 2006 'Prediction of discharge from water surface width in a braided river with implications for at-a-station hydraulic geometry' Water Resources Research 42, W03406, doi:10.1029/2005WRR003993
Pyrce, R. and Ashmore P. 2005 'Bed-load path length and point bar development in gravel-bed river models' Sedimentology 52, 839-857
Doeschl, A, and Ashmore P, 2005 'Assessing a cellular braided-stream model with a physical small-scale model of braided-streams' Earth Surface Processes and Landforms 30, 519-540, DOI: 10.1002/esp 1146
Chapters in Books
Ashmore, P. (in press) 'Morphology and dynamics of braided rivers' in Treatis on Geomorphology eds J. Schroder Jr. and E. Wohl (Academic Press, San Diego)
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
Doeschl, A., Ashmore, P and Davison, M. 2006 'Evaluating braided river models' in Braided Rivers: Process Deposits, Ecology and Management G. Sambrook-Smith, J. Best, C. Bristow and G. Petts eds (Blackwell, International Association of Sedimentologists Special Publication) 36, 177-197
Supervised Graduate Students and Theses Titles
| Ph.D. Students | Year | Title |
|---|---|---|
| N. Bergman | Current | Erosion and sediment transport in semi-alluvial rivers |
| S. Peirce | Current | TBA |
| 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 |
| MSc Students | Year | Title |
| C. Raedts | Current | TBA |
| 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 |
