Antoni LEWKOWICZ

Carte électronique

Antoni LEWKOWICZ
Doyen, Faculté des arts et Professeur titulaire, Département de géographie
1981 – Ph.D., Geography, University of Ottawa
1978 – M.A., Geography, University of Ottawa
1976 – B.Sc. (1st class Hons.), Geography, University of Southampton

SMD 021

Bureau : 613-562-5800 poste 1067

Courriel professionnel : alewkowi@uOttawa.ca

Antoni Lewkowicz

Biographie

Recherche

Projets en cours

(1) Testing and refinement of the Basal Temperature of Snow (BTS) method to model permafrost distribution in complex mountainous terrain, Ruby Range, Yukon Territory and Haines Summit, northern British Columbia (Phil Bonnaventure).

(2) Effects of the 2004 forest fires on active-layer detachment failures, Dawson region, Yukon Territory (Jim Coates).

(3) Evolution of thermokarst lakes in a mountain basin, Wolf Creek, Yukon Territory (Dana Szabadi).

(4) Solifluction processes and soil micromorphology, Ellesmere Island, Nunavut (Angeline Lovatt).

(5) Aggradation and degradation of permafrost mounds, Wolf Creek, Yukon Territory.

(6) Air temperature inversions and their influence on permafrost in mountain basins, Yukon Territory.

(7) Rates and causes of active-layer detachments, Ellesmere Island.

Projets à venir pour les cinq prochaines années

(1) Testing and refinement of the Basal Temperature of Snow (BTS) method to model permafrost distribution in south-east Yukon (suitable for an M.Sc. and/or a Ph.D. student research project).

(2) Experimental study of permafrost hydrology and permafrost mounds, Wolf Creek, near Whitehorse (suitable for an M.Sc. or Ph.D. student research project).

(3) Frequency and magnitude of geomorphological processes on mountain slopes under differing ground temperature regimes (suitable for a Ph.D. student project).

(4) Development of improved methods to measure solifluction (suitable for an M.Sc. student project).

Carrière

Professeur, Département de géographie et membre du Ottawa-Carleton Geoscience Centre, Université d’Ottawa (1999-à ce jour)

Doyen associé (Recherche), Faculté des arts, Université d’Ottawa (2001-2005)

Directeur, Département de géographie, Université d’Ottawa (1994-2000), sauf durant un congé sabbatique juillet-décembre 1997

Professeur agrégé, Département de géographie et membre du Ottawa-Carleton Geoscience Centre, Université d’Ottawa (1994-1999)

Directeur associé, Département de géographie, University of Toronto (1991-1994)

Professeur agrégé, Département de géographie, University of Toronto (1987-1994)

Professeur agrégé, Département de géographie, University of Toronto (1982-1987)

Project Terrain Scientist, EBA Engineering Consultants Ltd., Calgary (1980-1982)

Activités professionnelles (5 dernières années)

2005-present – Chair, International Advisory Committee, International Permafrost Association

2004-present – Academic Colleague for the University of Ottawa, Council of Ontario Universities

2005 – Member, Mackay Award Committee, Canadian Geomorphology Research Group

2004 – Chair, Mackay Award Committee, Canadian Geomorphology Research Group

2002-2003 – Review editor, Eighth International Conference on Permafrost, Zurich, July 2003

2002-2003 – President, Canadian Geomorphological Research Group

2001-2002 – Vice-President, Canadian Geomorphological Research Group

2001-2002 – Communications Director, Canadian Geoscience Council

1999-2005 – Member, International Advisory Committee, International Permafrost Association

1999-2001 – Committees Director, Canadian Geoscience Council

1995-present – Associate Editor, Permafrost and Periglacial Processes (John Wiley and Sons)

1994-present – Member, Interdisciplinary Advisory Board, Arctic, Antarctic and Alpine Research, (University of Colorado)

1996-2000 – Member, International Geographical Union, Commission on Climatic Change and Periglacial Environments

Survol des publications

Books and Journal Special Issues edited:

Lewkowicz, A.G. (ed.): Special Issue in Honour of Professor Emeritus Hugh M. French: Papers from the Joint Meeting of the Canadian Geomorphology Research Group and l’Association Québécoise pour l’Étude du Quaternaire, May 2004. Permafrost and Periglacial Processes, 16(1), 1-143, 2005.

Journal regular issues edited:

Lewkowicz, A.G. (ed.): Permafrost and Periglacial Processes, volumes 17-23 (4 issues per year), 2006-2012.

Papers in refereed journals:

James, M.A., Lewkowicz, A.G., Smith, S.L. and Miceli, C. Multi-decadal degradation and persistence of permafrost in the Alaska Highway corridor, northwest Canada. Environmental Research Letters, 8, 045013, doi:10.1088/1748-9326/8/4/045013, 2013.

Bonnaventure P.P.and Lewkowicz A.G. Impacts of mean annual air temperature change on a regional permafrost probability model for the southern Yukon and northern British Columbia, Canada. The Cryosphere, 7, 935-946, doi:10.5194/tc-7-935-2013.

Smith, S.L., Throop, J., and Lewkowicz, A.G. Recent changes in climate and permafrost temperatures at forested and polar desert sites in northern Canada. Canadian Journal of Earth Sciences, 49(8), 914-924. DOI: 10.1139/e2012-019, 2012.

Derksen, C., Smith, S.L., Sharp, M., Brown, L., Howell, S., Copland, L., Mueller, D.R., Gauthier, Y., Fletcher, C., Tivy, A., Bernier, M., Bourgeois, J., Brown, R., Burn, C.R., Kusher, P., Langlois, A., Lewkowicz, A.G., Royer, A., Walker, A. Change in the Canadian cryosphere. Climatic Change, 115 (1), 59-88. DOI: 10.1007/s10584-012-0470-0, 2012.

Lewkowicz, A.G., Bonnaventure, P.P., Smith, S.L., Kuntz, Z. Spatial and thermal characteristics of mountain permafrost, northwest Canada. Geografiska Annaler Series A, 94(2) 195-213. doi:10.1111/j.1468-0459.2012.00462.x, 2012.

Bonnaventure, P.P. and Lewkowicz, A.G. Permafrost probability modelling above and below treeline, Yukon, Canada. Cold Regions Science and Technology, 79-80, 92-106. DOI: 10.1016/j.coldregions.2012.03.004, 2012.

Bonnaventure, P.P., Lewkowicz, A.G., Kremer, M., Sawada, M. A regional permafrost probability model for the southern Yukon and northern British Columbia, Canada. Permafrost and Periglacial Processes, 23, 52-68. DOI: 10.1002/ppp.1733, 2012.

Throop, J., Lewkowicz, A.G., Smith, S.L. Climate and ground temperature relations at sites across the continuous and discontinuous permafrost zones, northern Canada. Canadian Journal of Earth Sciences, 49(8), 865-876. doi: 10.1139/e11-075, 2012.

Lewkowicz, A.G., Etzelmüller, B. and Smith, S.L. Characteristics of discontinuous permafrost from ground temperature measurements and electrical resistivity tomography, southern Yukon, Canada. Permafrost and Periglacial Processes, 22(4) 320-342. DOI: 10.1002/ppp.703, 2011.

Lewkowicz, A.G. and Bonnaventure, P.P. Equivalent elevation: a method to incorporate variable lapse rates into mountain permafrost modeling. Permafrost and Periglacial Processes, 22(2), 153-162. DOI: 10.1002/ppp.720, 2011.

Kremer, M., Lewkowicz, A.G., Bonnaventure, P.P. and Sawada, M. Utility of classification and regression tree analyses and vegetation in mountain permafrost models, Yukon Territory, Canada. Permafrost and Periglacial Processes, 22(2) 163-178. DOI: 10.1002/ppp.719, 2011

Lewkowicz, A.G. Slope hummock development, Fosheim Peninsula, Ellesmere Island, Nunavut, Canada. Quaternary Research, 75(2) 334-346. doi:10.1016/j.yqres.2010.12.013, 2011.

Bonnaventure, P.P. and Lewkowicz, A.G. Modelling climate change effects on the spatial distribution of mountain permafrost at three sites in northwest Canada. Climatic Change, 105 (1-2), 293-312. DOI 10.1007/s10584-010-9818-5, 2011.

Cannone, N., Lewkowicz, A.G., Guglielmin, M. Vegetation colonization of permafrost-related landslides, Ellesmere Island, Canadian High Arctic. Journal of Geophysical Research – Biogeosciences, 115, G04020, doi:10.1029/2010JG001384, 2010.

Smith, S.L., Romanovsky, V.E., Lewkowicz, A.G., Burn, C.R., Allard, M., Clow, G., Yoshikawa, K., Throop, J. Thermal state of permafrost in North America – a contribution to the International Polar Year. Permafrost and Periglacial Processes, 21(2), 117-135. DOI: 10.1002/ppp.690, 2010.

Grosse, G., Romanovsky, V.E., Nelson, F.E., Brown, J., Lewkowicz, A.G. Why permafrost is thawing, not melting. Eos: Transactions of the American Geophysical Union, 91(9), 87. doi:10.1029/2010EO090003, 2010.

Lacelle, D., St-Jean, M., Lauriol, B., Clark, I.D., Lewkowicz, A., Froese, D.G., Kuehn, S.C., Zazula, G. Burial and preservation of a 30,000 year old perennial snowbank in Red Creek valley, Ogilvie Mountains, central Yukon, Canada. Quaternary Science Reviews, 28, 3401-3413. doi:10.1016/j.quascirev.2009.09.013, 2009.

Guglielmin, M., Lewkowicz, A.G., French, H.M. and Strini, A. Lake-ice blisters, Terra Nova Bay area, northern Victoria Land, Antarctica. Geografiska Annaler, 91A, 99-111. DOI: 10.1111/j.1468-0459.2009.00357.x, 2009.

Lewkowicz, A.G.: Evaluation of miniature temperature-loggers to monitor snowpack evolution at mountain permafrost sites, northwestern Canada. Permafrost and Periglacial Processes, 19, 323-331. DOI: 10.1002/ppp.625, 2008.

Bonnaventure, P.P.  and Lewkowicz, A.G.: Mountain permafrost probability mapping using the BTS method in two climatically dissimilar locations, northwest Canada. Canadian Journal of Earth Sciences, 45, 443-455. DOI: 10.1139/E08-013, 2008.

Lewkowicz, A.G. and Bonnaventure, P.P.: Interchangeability of local mountain permafrost probability models, northwest Canada. Permafrost and Periglacial Processes, 19, 49-62. DOI: 10.1002/ppp.612, 2008.

Lewkowicz, A.G.: Dynamics of active-layer detachment failures, Fosheim Peninsula, Ellesmere Island, Nunavut, Canada. Permafrost and Periglacial Processes, 18, 89-103. DOI: 10.1002/ppp.578, 2007.

Atkinson, D.E., Brown, R., Alt, B., Agnew, T., Bourgeois, J., Burgess, M., Duguay, C., Henry, G., Jeffers, S., Koerner, R., Lewkowicz, A.G., McCourt, S., Melling, H., Sharp, M., Smith, S., Walker, A., Wilson, K., Wolfe, S., Woo, M.-K., Young, K.L.: Canadian cryospheric response to an anomalous warm summer: a synthesis of the Climate Change Action Fund project “The state of the Arctic cryosphere during the extreme warm summer of 1998”. Atmosphere-Ocean, 44(4), 347-375, 2006.

Kinnard, C. and Lewkowicz, A.G.: Frontal advance of turf-banked solifluction lobes, Kluane Range, Yukon Territory.  Geomorphology, 73(3-4), 261-276, 2006.

Lewkowicz, A.G. and Harris, C.: Morphology and geotechnique of active-layer detachment failures in discontinuous and continuous permafrost, northern Canada. Geomorphology, 69, 275-297, 2005.

Kinnard, C. and Lewkowicz, A.G.:Movement, moisture and thermal conditions at a turf-banked solifluction lobe, Kluane Range, Yukon Territory, Canada Permafrost and Periglacial Processes, 16(3), 261-275, 2005.

Lewkowicz, A.G. and Harris, C.: Frequency and magnitude of active-layer detachment failures in discontinuous and continuous permafrost, northern Canada. Permafrost and Periglacial Processes, 16(1), 115-130. 2005.

Guglielmin, M., Cannone, N., Strini, A. and Lewkowicz, A.G.: Biotic and abiotic processes on granite weathering landforms in a cryotic environment, Northern Victoria Land, Antarctica. Permafrost and Periglacial Processes, 16(1), 69-85. 2005.

Papers in refereed conference proceedings:

Throop, J.L., Smith, S.L. and Lewkowicz, A.G. Observed recent changes in climate and permafrost temperatures at four sites in northern Canada.  GEO2010: 63rd Canadian Geotechnical Conference and 6th Canadian Permafrost Conference, Calgary, Alberta, (CD-ROM) pp. 1265-1272, 2010.

Smith, S.L., Lewkowicz, A.G., Burn, C.R., Allard, M., Throop, J.L. Thermal State of Permafrost in Canada – Results from the International Polar Year. GEO2010: 63rd Canadian Geotechnical Conference and 6th Canadian Permafrost Conference, Calgary, Alberta, (CD-ROM) pp. 1214-1221, 2010.

Papers submitted to refereed journals

Technical reports (non-refereed):

Lewkowicz, A.G. Overview report for New Millennium Iron on permafrost conditions in the Schefferville area.Submitted to New Millennium Iron, August 2013. 12 p.

Lewkowicz, A.G. and Bonnaventure, P.P. Burwash Landing - Destruction Bay Landscape Hazards Report: current and future climate and permafrost conditions. Submitted to Yukon Research Centre, Yukon College, 2013. 21 p.

Bonnaventure, P.P and Lewkowicz, A.G. Yukon permafrost probability map. ArcGIS 10.0 data-base. Available on-line at: http://permafrost.gov.yk.ca/data/permafrost_probability_map/

Kennedy, K., Kinnear, L., Calmels, F., Bonnaventure, P., Lewkowicz, A., Benkert, B., and Hennessey, R.  Mayo landscape hazards: geological mapping for climate change adaptation planning. Yukon Research Centre, Yukon College, 2011, 64 p.

Lewkowicz, A.G. Review of permafrost issues in Chapter 6 (Project Design, Construction and Operations) of the Report of the Joint Review Panel for the Mackenzie Gas Project. Report for Sierra Club of Canada, February 2010, 4 p.

Lipovsky, P.S., Coates, J., Lewkowicz, A.G. and Trochim, E. Active-layer detachments following the summer 2004 forest fires near Dawson City, Yukon, pp. 175-194 in Emond, D.S., Bradshaw, G.D., Lewis, L.L. and Weston, L.H. (eds.), Yukon Exploration and Geology 2005. Whitehorse, Yukon Geological Survey, 2006.

Lewkowicz, A.G. Gas pipelines and permafrost. Report prepared for the Sierra Club of Canada for presentation to the Joint Review Panel for the Mackenzie Gas Project, September 2006, 13 p.

Abstracts and/or papers read:

Lewkowicz, A.G. Electrical Resistivity Tomography as a tool for geotechnical investigations in discontinuous permafrost. Cold Regions Engineering Workshop: 50th Anniversary of the First International Conference on Permafrost (1963-2013), Purdue University, Indiana, November 2013.

Lewkowicz, A.G. Northern infrastructure standards initiative: moderating the effects of permafrost degradation on existing structures. Pan-Territorial Permafrost Workshop, Yellowknife, November 2013.

Lewkowicz, A.G., Miceli, C., Duguay, M., Bevington, A. Electrical Resistivity Tomography as an essential tool to investigate sites in discontinuous permafrost. Pan-Territorial Permafrost Workshop, Yellowknife, November 2013.

Bonnaventure, P., Lewkowicz, A.G., Pope, G. Permafrost scenario and mean annual air temperature monitoring. Pan-Territorial Permafrost Workshop, Yellowknife, November 2013.

Bevington, A. and Lewkowicz, A.G. Towards physical modeling of permafrost distribution: creating easy to use databases for large datasets. Pan-Territorial Permafrost Workshop, Yellowknife, November 2013 (poster presentation)

Lewkowicz, A.G., Miceli, C. and Smith, S.L. Use of electrical resistivity tomography to monitor permafrost thaw and persistence in the discontinuous permafrost zone, northwest Canada. Science Symposium, Arctic Science Summit Week, Krakow, Poland, April 2012 (poster presentation).

Bevington A., Lewkowicz A.G.. Towards a TTOP model of permafrost for the Yukon. Ottawa-Carleton Student Northern Research Symposium, March 2013.

Duguay, M., Lewkowicz, A.G., Smith, S.L. Multi-decadal differences in ground temperatures and permafrost characteristics along the Alaska Highway Corridor. Ottawa-Carleton Student Northern Research Symposium, March 2013.

May, I., Lewkowicz, A.G., Christiansen, H.H., Romanovsky, V.E., Lantuit, H., Schrott, L., Sergeev, D., and Ma, W. The International Permafrost Association: new structure and initiatives for cryospheric research. American Geophysical Fall Meeting, San Francisco, December 2012 (poster presentation).

Lewkowicz, A.G. The future of permafrost science: questions being answered and questions that remain. Permafrost Young Researchers Workshop, Tenth International Conference on Permafrost, Salekhard, Russia, June 2012 (invited plenary presentation).

Duguay, M., Smith, S.L. and Lewkowicz, A.G. Validation of current thermal conditions, Alaska Highway Corridor, Yukon, Canada. Tenth International Conference on Permafrost, Salekhard, Russia, June 2012 (poster presentation; extended abstracts volume 1 pp. 129-130).

Godsey, S.E., Gooseff, M.N., Johnson, C.R., Kling, G.W., Giblin, A.E., Crosby, B.T., Krieger, K., Lewkowicz, A.G. Hydrologic and Biogeochemical responses to fire and thermokarst formation in Arctic Alaska. Tenth International Conference on Permafrost, Salekhard, Russia, June 2012 (poster presentation; extended abstracts volume 1 pp. 185-186).

Lewkowicz, A.G., Smith, S.L., Miceli, C., Duguay, M.A., Bonnaventure, P.P. Monitoring permafrost temperature variation and change in southern Yukon, Canada. From Knowledge to Action: IPY 2012 Conference, Montreal, April 2012 (oral presentation).

Lewkowicz, A.G. Thawing landscapes, collapsing buildings: permafrost and climate change in northern Canada. Joint Symposium: Continuing to talk about the Canadian North in Siena, Centro Siena-Toronto, Italy, March 2012 (invited oral presentation).

Miceli, C. and Lewkowicz, A.G. Seasonal cycling in electrical resistivities at thin permafrost sites, southern Yukon and northern British Columbia. Ottawa-Carleton Student Northern Research Symposium, University of Ottawa, March 2012 (oral presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Scenario-based climate change modeling for a regional permafrost probability model of the southern Yukon and northern British Columbia. Ottawa-Carleton Student Northern Research Symposium, University of Ottawa, March 2012 (oral presentation).

Lewkowicz, A.G., Bonnaventure, P.P., Smith, S.L. and Kuntz, Z. Spatial and thermal characteristics of mountain permafrost, northwest Canada. Symposium on the mountain cryosphere - a holistic view on processes and their interactions, Zürich, Switzerland, January 2012 (invited presentation).

Lewkowicz, A.G., Etzelmüller, B. and Smith, S.L. Effect of shallow ponding on warming and thawing of permafrost in mineral-cored palsas, Wolf Creek, Yukon, Canada. American Geophysical Fall Meeting, San Francisco, December 2011 (poster presentation).

Godsey, S., Gooseff, M.N. and Lewkowicz, A.G. Controls on the spatiotemporal evolution of the thawed layer in and around thermokarst features. American Geophysical Fall Meeting, San Francisco, December 2011 (poster presentation).

Miceli, C.M. and Lewkowicz, A.G. Seasonal cycling in electrical resistivities at thin permafrost sites, southern Yukon and northern British Columbia. American Geophysical Fall Meeting, San Francisco, December 2011 (oral presentation).

Duguay, M.A., Lewkowicz, A.G. and Smith, S.L. Permafrost changes along the Alaska Highway corridor, southern Yukon, from ground temperatures and DC electrical resistivity tomography. American Geophysical Fall Meeting, San Francisco, December 2011 (poster presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. ±1°C scenario-based climate change modeling for a regional permafrost probability model of the southern Yukon and northern British Columbia, Canada. American Geophysical Fall Meeting, San Francisco, December 2011 (oral presentation).

Smith, S., Lewkowicz, A., Duguay, M. and Miceli, C. Updating baseline ground thermal and permafrost information in the Alaska Highway corridor. Yukon Geoscience Forum, Whitehorse, November 2011 (poster presentation).

Lewkowicz, A.G. Characteristics of mountain permafrost without a lower elevational limit. Third Iberian Conference of the International Permafrost Association, Piornedo, Spain, June 2011 (invited keynote presentation).

Lewkowicz, A.G. Permafrost in a warming Arctic: recent scientific advances and future directions. Arctic Science Summit Week 2011, Seoul, Korea, March 2011 (invited presentation).

Miceli, C. and Lewkowicz, A.G. The use of DC resistivity to investigate thin permafrost in the Alaska Highway Corridor. 2011 Ottawa-Carleton Student Northern Research Symposium, March 2011 (oral presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Regional permafrost probability modeling in the northwestern Cordillera, 59° - 65° N, Canada. 2011 Ottawa-Carleton Student Northern Research Symposium, March 2011 (oral presentation).

James, M., Lewkowicz, A.G. and Smith, S.L. Changes in near-surface permafrost in Northwest Canada. 2011 Ottawa-Carleton Student Northern Research Symposium, March 2011 (oral presentation).

Lewkowicz, A.G. Climate change and permafrost in the Yukon during the IPY. Yukon International Polar Year Results Workshop, Whitehorse, January 2011 (oral presentation)

Bonnaventure, P.P. and Lewkowicz, A.G. Regional high-resolution permafrost probability modelling for the southern and central Yukon. Yukon International Polar Year Results Workshop, Whitehorse, January 2011 (poster presentation).

Gooseff, M.N. Godsey, S., Lewkowicz, A.G., Lanan, K. Soil responses to rapid warming events inside and outside of thermokarst features during the snow season in arctic Alaska. American Geophysical Union Fall Meeting, San Francisco, December 2010 (poster presentation).

Godsey, S., Gooseff, M.N., Johnson, C., Lewkowicz, A.G., Krieger, K.E., Crosby, B.T.  Hydrological and biogeochemical responses to fire and thermokarst formation in Arctic Alaska. American Geophysical Union Fall Meeting, San Francisco, December 2010 (poster presentation).

Lewkowicz, A.G., Godsey, S. and Gooseff, M.N. Use of DC resistivity tomography to investigate thermokarst features, Toolik Lake area, Alaska, USA. American Geophysical Union Fall Meeting, San Francisco, December 2010 (poster presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Regional permafrost probability modelling in the northwestern Cordillera, 59°N - 61°N, Canada. American Geophysical Union Fall Meeting, San Francisco, December 2010 (poster presentation).

Miceli, C. and Lewkowicz, A.G. The use of DC resistivity to investigate thin permafrost in the Yukon Corridor. 38th Annual Yukon Geoscience Forum, Whitehorse, November 2010 (poster presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Regional high-resolution permafrost probability modelling for the southern and central Yukon. 38th Annual Yukon Geoscience Forum, Whitehorse, November 2010 (poster presentation).

Miceli, C. and Lewkowicz, A.G. Use of Direct Current (DC) resistivity profiling to investigate thin permafrost in the Alaska Highway Corridor. Royal Canadian Geographical Society Annual Meeting, Ottawa, November 2010 (oral presentation).

Throop, J.L., Smith, S.L. and Lewkowicz, A.G. Observed recent changes in climate and permafrost temperatures at four sites in northern Canada. GEO2010: 63rd Canadian Geotechnical Conference and 6th Canadian Permafrost Conference, Calgary, Alberta, September 2010 (oral presentation).

Smith, S.L., Lewkowicz, A.G., Burn, C.R., Allard, M., Throop, J.L. Thermal State of Permafrost in Canada – Results from the International Polar Year. GEO2010: 63rd Canadian Geotechnical Conference and 6th Canadian Permafrost Conference, Calgary, Alberta, September 2010 (oral presentation).

Smith, S.L., Lewkowicz, A.G., Burn, C.R., Allard, M., Throop, J.L. The Thermal State of Permafrost in Canada – Results from the International Polar Year. Third European Permafrost Conference, Svalbard, June 2010 (oral presentation).

Lewkowicz, A.G., Christiansen, H.H. A new method to monitor solifluction on permafrost slopes using magnetic targets, Svalbard, Norway. Third European Permafrost Conference, Svalbard, June 2010 (poster and field presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Modelling mountain permafrost distribution above and below treeline using empirical-statistical methods, Yukon Territory, Canada. Third European Permafrost Conference, Svalbard, June 2010 (oral presentation).

Throop, J.L., Smith, S.L. and Lewkowicz, A.G. Climate and permafrost relations across widely separated sites in northern Canada. Third European Permafrost Conference, Svalbard, June 2010 (poster presentation).

James, M., Lewkowicz, A.G., Smith, S.L. Change in permafrost distribution in northern British Columbia and southern Yukon, Canada from 1964 to the 2007-2008 IPY. Third European Permafrost Conference, Svalbard, June 2010 (oral presentation).

Throop, J., Smith, S.L., Lewkowicz, A.G. Permafrost warming at four thermal monitoring sites in Northern Canada. Polar Science – Global Impact. International Polar Year, Oslo Science Conference, Oslo, June 2010 (poster presentation).

Lewkowicz, A.G., Throop, J., Bonnaventure, P.P., James, M., Kremer, M.., Smith, S.L. and Etzelmüller, B.Thermal state and distribution of permafrost in the southern half of the Yukon Territory, Canada. Polar Science – Global Impact. International Polar Year, Oslo Science Conference, Oslo, June 2010 (oral presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Modelling mountain permafrost distribution during the IPY in the Yukon territory, Canada. Polar Science – Global Impact. International Polar Year, Oslo Science Conference, Oslo, June 2010 (oral presentation).

James, M., Lewkowicz, A.G., Smith, S.L. Changes in permafrost distribution in northern British Columbia and southern Yukon, Canada from 1964 to 2007-2008. Polar Science – Global Impact. International Polar Year, Oslo Science Conference, Oslo, June 2010 (poster presentation).

Smith, S.L., Romanovsky, V.E., Lewkowicz, A.G., Burn, C.R., Allard, M., Clow, G.D. Thermal state of permafrost in North America – a contribution to the International Polar Year. Polar Science – Global Impact. International Polar Year, Oslo Science Conference, Oslo, June 2010 (oral presentation).

Lewkowicz, A.G. and Bonnaventure, P.P. Influence of variable surface air temperature lapse rates on mountain permafrost distribution, Yukon Territory. Canadian Meteorological and Oceanographic Society – Canadian Geophysical Union Joint Meeting, Ottawa, June 2010 (oral presentation).

Smith, S.L., Lewkowicz, A.G., Burn, C.R., Allard, M. The Thermal State of Permafrost in Canada – Results from the International Polar Year. IPY Canada Early Results Workshop, Ottawa, February 2010 (oral presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Modelling mountain permafrost distribution during the IPY in the Yukon Territory. IPY Canada Early Results Workshop, Ottawa, February 2010 (poster presentation).

James, M. and Lewkowicz, A.G. Changes in permafrost distribution in Northern British Columbia and Southern Yukon from 1964 to the 2007-2008 International Polar Year. IPY Canada Early Results Workshop, Ottawa, February 2010 (poster presentation).

Throop, J., Lewkowicz, A.G., Smith, S.L. New information on mountain permafrost temperatures and climate in the southern Yukon for the International Polar Year. IPY Canada Early Results Workshop, Ottawa, February 2010 (poster presentation).

Lewkowicz, A.G. and Etzelmüller, B.E.Knowledge exchange on permafrost research. Cryo-Ex/IPY Cryospheric Science Meeting, University of Ottawa, October 2009.

Lewkowicz, A.G. TSP in the Yukon mountains. Cryo-Ex/IPY Cryospheric Science Meeting, University of Ottawa, October 2009.

Lewkowicz, A.G., Smith, S.L. and Burn, C.R.  Response of permafrost in Canada to a changing climate. Our Warming Planet: MOCA-09 - IAMAS-IAPS-IACS Joint Assembly, Montreal, July 2009 (Invited presentation).

Throop, J., Lewkowicz, A.G. and Smith, S.L. New information on mountain permafrost temperatures and climate in the Southern Yukon for the International Polar Year. Canadian Association of Geographers Annual Meeting, Ottawa, May 2009 (poster presentation).

Lewkowicz, A.G. and Bonnaventure, P.P.  Influence of topography on mountain permafrost distribution through variable air and ground surface lapse rates, Yukon Territory, Canada. European Geophysical Union Annual Meeting, Vienna, April 2009 (poster presentation).

Bonnaventure, P.P.and Lewkowicz, A.G. Recent progress in mountain permafrost modelling using BTS in North America. European Geophysical Union Annual Meeting, Vienna, April 2009 (oral presentation).

Etzelmüller, B. Lewkowicz, A.G. and Smith, S.L. Characteristics of discontinuous permafrost, southern Yukon Territory.European Geophysical Union Annual Meeting, Vienna, April 2009 (poster presentation).

Lewkowicz, A.G. and Smith, S.L. Permafrost and Infrastructure I: Climate change and permafrost in northern Canada.Aboriginal Policy Research Conference, Ottawa, March 2009 (invited presentation).

Smith, S.L. and Lewkowicz, A.G.  Permafrost and Infrastructure II: Information and research to support decision-making. Aboriginal Policy Research Conference, Ottawa, March 2009 (invited presentation).

Bonnaventure, P. and Lewkowicz, A.G. Modelling the effects of temperature and cloud cover change on mountain permafrost distribution, northwest Canada. American Geophysical Union Annual Fall Meeting, San Francisco, December 2008 (poster presentation).

Lewkowicz, A.G., Etzelmüller, B. and Smith, S.L. Characteristics of discontinuous permafrost, southern Yukon Territory. Arctic Change 2008, Québec, December 2008 (poster presentation).

Smith, S.L., Lewkowicz, A.G. and Burn, C.R. Thermal state of permafrost: a snapshot of current conditions and recent trends. Arctic Change 2008, Québec, December 2008 (oral presentation).

Bonnaventure, P. and Lewkowicz, A.G. The effects of past and future climate change on mountain permafrost. Yukon Territory. University of Ottawa Frontiers in Research Lectures, The Disappearing North, October 2008 (Winner of best student oral presentation).

Page, A., Lewkowicz, A.G., Lipovsky, P. and Bond, J.Rock glacier distribution in the Yukon. University of Ottawa Frontiers in Research Lectures, The Disappearing North, October 2008 (poster presentation).

James, M., Lewkowicz, A.G., and Smith, S.L. Historic change in permafrost distribution in northern British Columbia and southern Yukon. University of Ottawa Frontiers in Research Lectures, The Disappearing North, October 2008 (poster presentation).

Kremer, M., Lewkowicz, A.G. and Sawada, M. Incorporating vegetation into mountain permafrost distribution models. University of Ottawa Frontiers in Research Lectures, The Disappearing North, October 2008 (poster presentation).

Throop, J., Lewkowicz, A.G. and Smith, S.L. New information on mountain permafrost temperatures and climate in the Southern Yukon for the International Polar Year. University of Ottawa Frontiers in Research Lectures, The Disappearing North, October 2008 (poster presentation).

Throop, J.L., Smith, S.L. and Lewkowicz, A.G. Effect of a snow fence on the shallow ground thermal regime, Baker Lake, Nunavut, Canada. University of Ottawa Frontiers in Research Lectures, The Disappearing North, October 2008 (poster presentation).

Lewkowicz, A.G., Bonnaventure, P., Schultz, E., Page, A., Kremer, M., and Sawada, M. Modelling permafrost distribution and climate change impacts for the mountains of the Yukon, northwest Canada. Tribute Workshop for A. Lincoln Washburn, International Arctic Research Center, Fairbanks, Alaska, July 2008 (invited presentation).

Lewkowicz, A.G. and Harris, C. Mass movements on lowland/upland permafrost slopes. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 (invited plenary presentation).

Lipovsky, P., Huscroft, C., Lewkowicz, A.G. and Etzelmüller, B.: The role of permafrost in the 2002 Ten Mile Creek debris torrent, Yukon, Canada. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Coates, J. and Lewkowicz, A.G. Landsliding following forest fire on permafrost slopes, Klondike area, Yukon, Canada. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Modelling potential climate change impacts on mountain permafrost distribution, Wolf Creek, Yukon, Canada. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Kremer, M., Lewkowicz, A.G., Sawada, M., Bonnaventure, P.P. and Ednie, M. Potential inclusion of vegetation indices in mountain permafrost modeling. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

James, M., Lewkowicz, A.G., Smith, S.L. and Lipovsky, P. Historic change in permafrost distribution in northern British Columbia and southern Yukon. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Throop, J.L., Smith, S.L. and Lewkowicz, A.G. Effect of a snow fence on the shallow ground thermal regime, Baker Lake, Nunavut, Canada. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Schultz, E.A. and Lewkowicz, A.G. Surface offsets and n-factors across altitudinal treeline, Wolf Creek area, Yukon Territory, Canada. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Page, A., Lewkowicz, A.G., Lipovsky, P. and Bond, J. Potential use of rock glaciers as mountain permafrost indicators in Yukon Territory, Canada.  Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Smith, S.L., Lewkowicz, A.G. and Burn, C.R. Thermal State of Permafrost in Canada: a Contribution to the International Polar Year. Ninth International Conference on Permafrost, Fairbanks, Alaska, July 2008 extended abstract (poster presentation).

Coates, J. and Lewkowicz, A.G. Impacts of forest fire on permafrost slopes. Joint Annual Meeting of the Canadian Geophysical Union and the Canadian Geomorphology Research Group, Banff, Alberta, May 2008 (poster presentation).

Smith, S.L., Lewkowicz, A.G., Burn, C.R. The Canadian Permafrost Monitoring Network and the thermal state of permafrost. Second IPY Workshop on Sustaining Arctic Observation Networks, Edmonton, April 2008 (poster presentation).

Lewkowicz, A.G. Thermal State of Permafrost in Canada. Permafrost Young Researchers Network Seminar, Longyearbyen, Svalbard, April 2008 (invited presentation).

Bonnaventure, P.P. and Lewkowicz, A.G. Exploring the effectiveness of alpine permafrost model transfer between mountain environments in Northwestern Canada. American Geophysical Union Fall Meeting, San Francisco, December 2007. Eos, Transactions, American Geophysical Union, vol. 88, no. 52, fall meeting supplement, abstract C31A-05.

Lewkowicz, A.G. Permafrost and climate warming. Presentation and panel discussant in Issues in the Canadian North, Discovery Lecture Series, Faculty of Arts, University of Ottawa, November 2007.

Lewkowicz, A.G. Permafrost and climate warming: hidden changes, visible challenges.IPY Workshop, Association of Canadian Universities for Northern Studies Eighth International Student Conference, Saskatoon, Saskatchewan, October 2007  (invited presentation).

Lewkowicz, A.G. The role of permafrost in global warming. 60th Birthday Celebration of Professor Hans Hubberten, Alfred Wegener Institute, Potsdam, Germany, July 5, 2007 (invited presentation).

Lewkowicz, A.G.  Solifluction processes and landforms in the Arctic and Subarctic. European Geophysical Union, Vienna, Austria, April 2007 (invited presentation).

Schultz, E. and Lewkowicz, A.G. Air and ground temperature relations through altitudinal tree-line, southern Yukon. Ottawa-Carleton Student Northern Research Symposium, March 2007.

Schultz, E., Lewkowicz, A.G. and Bonnaventure, P. Establishment of an air and ground temperature monitoring network for permafrost prediction in the mountains of the Yukon. Ottawa-Carleton Student Northern Research Symposium, March 2007.

Bonnaventure, P. and Lewkowicz, A.G. Mapping mountain permafrost probability using the Basal Temperature of Snow method, Yukon Territory. Ottawa-Carleton Student Northern Research Symposium, March 2007.

Lewkowicz, A.G., Bonnaventure, P., Schultz, E. and Etzelmüller, B. Mountain permafrost in the Yukon Territory Canada: mapping and modeling. American Geophysical Union Fall Meeting, San Francisco, December 2006 (invited presentation) Eos, Transactions, American Geophysical Union, vol. 87, no. 52, fall meeting supplement, abstract C42A-04.

Lewkowicz, A.G. Thaw of the transient layer: mud ejection features and detachment failures on the Fosheim Peninsula, Ellesmere Island. Canadian Association of Geographers, Ontario Division Annual Conference, McMaster University, October 2006.

Schultz, E.A., Lewkowicz, A.G. and Bonnaventure, P. An air and ground temperature monitoring network for permafrost prediction in the mountains of the Yukon: preliminary data. Canadian Association of Geographers, Ontario Division Annual Conference, McMaster University, October 2006 (poster presentation).

Bonnaventure, P. and Lewkowicz, A.G. Basal temperature of snow method to map permafrost in complex mountainous terrain, Ruby Range Y.T. and Haines Summit, B.C. Ottawa-Carleton Student Northern Research Symposium, April 2006.

Szabadi, D. and Lewkowicz, A.G. Thermokarst activity in upper Wolf Creek, Yukon Territory. Ottawa-Carleton Student Northern Research Symposium, April 2006.

Lewkowicz, A.G. Slow and rapid mass movements in lowland permafrost terrain, northern Canada: implications for climate change. European Geophysical Union, Vienna, April 2006. (Invited presentation).

Lovatt, A. and Lewkowicz, A.G. Frequency and magnitude of air temperature inversions, Whitehorse, Yukon Territory (1981-2004). Canadian Association of Geographers, Ontario Division Annual Conference, University of Ottawa, October 2005.

Bonnaventure, P. and Lewkowicz, A.G. Validation of the Basal temperature of Snow method to map permafrost in complex mountainous terrain, Ruby Range, Yukon Territory and Haines Summit, B.C.. Canadian Association of Geographers, Ontario Division Annual Conference, University of Ottawa, October 2005.

Szabadi, D. and Lewkowicz, A.G. Formation and degradation of ice-rich permafrost in a mid-elevation valley, Wolf Creek, Yukon Territory: preliminary results. Canadian Association of Geographers, Ontario Division Annual Conference, University of Ottawa, October 2005.

Coates, J. and Lewkowicz, A.G. Effect of forest fire on landsliding over permafrost, Steele Creek, Yukon Territory. Canadian Association of Geographers, Ontario Division Annual Conference, University of Ottawa, October 2005.

Lewkowicz, A.G. Distinguishing between climate variation and climate change impacts on the permafrost landscape: examples from Arctic Canada, Seminar on Permafrost and Periglacial Processes, Department of Geosciences, University of Oslo, May 2005 (invited talk).

Lewkowicz, A.G. Short-term palsa dynamics in Wolf Creek, Yukon Territory, Canada: preliminary results, American Association of Geographers Annual Meeting, Denver, April 2005.

Other publications:

Lewkowicz, A.G. and Schellenberg, P. Research Chairs: A Systematic Change in Ontario’s Universities. COU Colleagues Working Paper Series, Volume 5 (2005-2006), No. 3, pp. 18-23. Toronto, Council of Ontario Universities, 2006.

Other presentations:

Lewkowicz, A.G. Status reports and review of major issues in North America. ERA-Can II Rome Symposium on Arctic and Marine Research Infrastructure, Rome, September 2013 (Invited panelist).

Lewkowicz, A.G. Warming planet, thawing permafrost or vice versa. 491st meeting of the Arctic Circle Club, Ottawa, February 2013.

Lewkowicz, A.G. Arctic riches: can we balance exploitation and preservation? Café Scientifique, Canada Museum of Science and Technology, Ottawa, January 2013 (Invited panelist).

Lewkowicz, A.G. Permafrost distribution, characteristics and dynamics, Yukon, Canada.State Key Laboratory of Frozen Ground Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China, November 2012 (invited presentation).

Lewkowicz, A.G. Why is thawing permafrost like defrosting a turkey? and other arctic climate change questions.Dean’s Lecture Series, Faculty of Arts, University of Ottawa, May 2012 (oral presentation).

Lewkowicz, A.G. Institutional partnerships: a Canadian view. Motivasjonskonferanse for Nord-Amerika 2012, Bergen, Norway, January 2012 (invited presentation).

Lewkowicz, A.G. Poles apart. Poles Apart, University of Ottawa, February 2011 (oral presentation and panelist).

Lewkowicz, A.G. A look at the ups and downs of climate change coverage in 2010. Canadian Science Writers’ Association Conference: At a crossroads: science communication in the digital age, Ottawa, June 2010 (invited panellist).

Lewkowicz, A.G. Thawing landscapes, collapsing buildings: permafrost and climate change in Canada. Golden Key International Honour Society Chapter of the University of Ottawa, December 2009 (Invited presentation)

Lewkowicz, A.G. Not permanently frozen: permafrost and climatic change in Canada. Northern Studies Lecture Series, University of Ottawa, November 2009 (Invited presentation).

Etzelmüller, B.E. and Lewkowicz, A.G. Exchange arrangements between Norwegian and Canadian research and education institutions focusing on the terrestrial cryosphere (CRYOEX).Workshop on Research and Higher Education Cooperation between Norway and Canada, Canada-Norway High North Dialogue, Oslo, November 2009 (invited presentation).

Lewkowicz, A.G. Mountain permafrost and climate change in the Yukon. Interdisciplinary Centre on Climate Change Seminar Series, University of Waterloo, January 2009 (Invited inaugural oral presentation).

Lewkowicz, A.G. Freezing in the dark: the influence of topography and cold air drainage on permafrost in the Yukon. Northern Climate Exchange Climate Change Lecture Series, MacBride Museum, Whitehorse, February 2009 (Invited public lecture).

Etzelmüller, B. and Lewkowicz, A.G. Arctic Climate Change – A Norwegian/Canadian partnership. Higher Education – a key to development in the High North, SIU Conference, Tromsø, Norway, January 2009 (Invited panel presentation).

Lewkowicz, A.G. On unstable ground: changes to permafrost. Symposium on Arctic Climate, Canadian Foundation for Climate and Atmospheric Sciences, Ottawa, November 2008 (invited presentation).

Lewkowicz, A.G. Hidden changes, visible impacts: permafrost in a warming Yukon.  Yukon Science Institute Public Lecture Series, Whitehorse and Dawson, March 2008 (invited presentations).

Lewkowicz, A.G. Scope and impact of climate change in the Arctic. World On Thin Ice Conference, McMaster University, Science for Peace/Pugwash Society, Hamilton, March 2008 (invited presentation).

Supervision de thèses

Noms des étudiants supervisés (8 dernières années)

Robert Way (Ph.D.), Spatial modeling of permafrost distribution in Labrador, Sept. 2013-

Olivier Bellehumeur-Genier (M.Sc.), Investigation of permafrost body dimension and ground temperature variability across the discontinuous permafrost zones, Alaska Highway Corridor, British Columbia and Yukon Territory, Sept. 2013-

Alexandre Bevington (M.Sc.), Towards a TTOP spatial model of permafrost distribution, Yukon Territory, Sept. 2012-

Maxime A. Duguay (M.Sc.), Permafrost changes along the Alaska Highway Corridor, Southern Yukon, from ground temperature measurements and DC resistivity tomography, May 11-June 13 (co-supervision with Sharon Smith, Geological Survey of Canada)

Christina Miceli (M.Sc.), Seasonal cycling in electrical resistivities at ten thin permafrost sites, southern Yukon and northern British Columbia, Sept. 10- Oct. 12

Megan James (M.Sc.), Historic change in permafrost distribution in northern British Columbia and southern Yukon Territory, Canada, Sept. 07-April 10 (co-supervision with Sharon Smith, Geological Survey of Canada)

Jennifer Throop (M.Sc.), Spatial and temporal variability in permafrost conditions, northern Canada, Sept. 07-May 10 (co-supervision with Sharon Smith, Geological Survey of Canada)

Marian Kremer (M.Sc.), Incorporation of vegetation into mountain permafrost distribution models, southern Yukon Territory, Sept. 07-Jan. 10 (co-supervision with Prof. Mike Sawada)

Amaris Page (M.Sc.), A topographic and photogrammetric study of rock glaciers in the southern Yukon Territory, Sept. 07-Sept. 09

Philip Bonnaventure (Ph.D.), Modelling permafrost distribution in the mountains of the southern and central Yukon, Sept. 06-Apr. 11

Emily Schultz (M.Sc.), Measurement and modeling of air temperature inversions for permafrost distribution, Yukon Territory, Sept. 05-April 10

James Coates (M.Sc.), The impact of forest fire on permafrost slopes, Klondike area, Yukon Territory, Sept. 05-Mar. 08

Philip Bonnaventure (M.Sc.), Validation of the BTS method to map mountain permafrost in complex mountainous terrain, Ruby Range, Y.T. and Haines Road, northern B.C. Jan. 05-Sept. 06

Pauline Favero (M.Sc.), Active layer detachment morphology, sedimentology and mechanisms, Fosheim Peninsula, Ellesmere Island, Sept. 04-June 09

Angeline Lovatt (M.Sc.), Characteristics of low-level inversions, Whitehorse, Yukon Territory: 1956-2003, Sept. 04- June 09

Champs d'intérêt

  • Géomorphologie et hydrologie des régions à pergélisol
  • Effets de réchauffement du climat sur les régions arctiques
  • Pergélisol alpin
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