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
Ashmore, P. (submitted Jan 2009) 'The intensity and characteristic length of braided channel patterns' Canadian Journal of Civil Engineering
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. (accepted Dec 2008) 'Length scale of braided river morphology' Water Resources Research
Egozi, R. and Ashmore, P. (accepted Dec 2008) 'Experimental analysis of braided channel pattern response to increased discharge' Journal of Geophysical Research-Earth Surface
Egozi, R. and Ashmore, P. 2008 'Defining and measuring braiding intensity' Earth Surface Processes and Landforms 33, 2121-2138
Ashmore, P., Biron, P., Eaton, B. and Rennie, C. (accepted Dec 2007) 'Canadian research on fluvial sediment transport since 2003' Canadian Water Resources Journal
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
Pyrce, R. and Ashmore, P. 2003 'Bed particle path length distributions and channel morphology in gravel-bed streams' Geomorphology 56, 167-187
Pyrce, R. and Ashmore, P. 2003 'Path length distributions in meandering gravel-bed streams: results from physical models' Earth Surface Processes and Landforms 28, 951-966
Lu, X.X., Ashmore, P. and Wang J. 2003 'Sediment yield mapping in a large river basin: an example of the Upper Yangtze, China' Environmental Modelling and Software 18, 339-353
Lu, X.X., Ashmore, P. and Wang J. 2003 'Seasonal water discharge and sediment load changes in the Upper Yangtze, China' Mountain Research and Development 23, 56-64
Chandler, J.H., Ashmore, P., Paola, C., Gooch, M. and Varkaris, F. 2002 'Monitoring river channel change using terrestrial oblique digital imagery and automated digital photogrammetry' Annals of the Association of American Geographers 92, 631-644
Lindsay, B. and Ashmore, P. 2002 'Error in measurement of gravel-bed topography and topographic change: the effects of survey frequency on estimates of scour and fill' Earth Surface Processes and Landforms 27, 27-43
Chapters in Books
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 |
|---|---|---|
| A. Siddiqui | Current | TBA |
| J.T. Gardner | 2009 | Sedimentology of gravel-bed 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 |
| T. Hrytsak | Current | TBA |
| N. Sampson | Current | TBA |
| J. McDonald | Current | Post-diction of channel changes due to urbanization on Highland Creek |
| M. Ferencevic | 2008 | DEM Mapping of Stream Power for Southern Ontario Streams |
| 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 |
