Faculty

Jaclyn Cockburn

Jaclyn Cockburn

PhD, Queen's University, 2008
Assistant Professor

Office: Hutt 353
Tel:519-824-4120 ext. 53498
jcockbur@uoguelph.ca

Specialization

Geomorphology, sedimentary processes, climate change, hydrology, physical limnology, natural hazards.

Research Interests and Areas of Expertise

My research interests are in past and contemporary, landscape processes and specifically, how environmental variability has modified or changed these process dynamics.  As well, I am interested in how our knowledge of past processes is informed through the use of paleoenvironmental proxies.  I am also interested in the formation of clastic varve (annually laminated sedimentary structures) records and the isolation of the different process signals (e.g., climatological, hydrological, geomorphological) from these records.  I study how these high-resolution sedimentary records can be used to evaluate landscape changes (e.g., permafrost degradation or destabilization) through time.  In the context of future global change, high-resolution records will help us understand how surface processes in the past have responded to climate change and how they might change in the future.

In addition, I am actively evaluating instrument records (temperature, precipitation and discharge) as a way of establishing baseline conditions to which future scenarios are compared.  I am also developing and/or improving field instruments used in monitoring and measuring sedimentary processes in lakes and streams.

Past and Current Projects

2012 Mohawk Watershed Symposium, Union College Schenectady NY. Friday March 16.

Summer URA student research position available. The student researcher on this project will assist me in study site reconnaissance in Yukon Territory and preliminary field surveys and sampling.  The successful applicant will gain experience in stream gauging, topographic and limnic surveying, instrument set-up, and general logistics and operations of a limited remote field setting. Start date May 1, 2012. [URA program details]

Sedimentary records of climate and sediment supply variability in the Canadian High Arctic

Twentieth century changes in river and stream regimes throughout New York and New England

Geomorphic and hydrologic responses to co-seismic and inter-seismic uplift and subsidence along the Copper River Delta and Alaganik Slough, Alaska

Selected Recent Publications

Cockburn, J.M.H. and Lamoureux, S.F. (2008). Inflow and lake controls on short-term mass accumulation and particle size in a High Arctic lake: implications for interpreting varved lacustrine sedimentary records, Journal of Paleolimnology, 40: 923-942, DOI: 10.1007/s10933-008-9207-5

Cockburn, J.M.H. and Lamoureux, S.F. (2008). Hydroclimate controls over seasonal sediment yield in two adjacent High Arctic watershed, Hydrological Processes, 22, 2013-2017.  DOI:10.1002/hyp

Cockburn, J.M.H. and Lamoureux, S.F. (2007). Century-scale variability in late-summer rainfall events recorded over seven centuries in subannually laminated lacustrine sediments, White Pass, British Columbia, Quaternary Research, 67: 193-203.

Lamoureux, S.F., McDonald, D.M., Cockburn, J.M.H., Lafrenière, M.J., Atkinson, D., and Treitz, P. (2006). An incidence of multi-year sediment storage on channel snowpack in the Canadian High Arctic, Arctic 59, 381-390.

Lamoureux, S.F. and Cockburn, J.M.H. (2005). Timing and climatic controls over Neoglacial expansion in northern Coast Mountains, British Columbia. The Holocene 15, 619-624.

Graduate Students Supervised (since 2011)
Program Year Student Title
Active
Masters   Hutton, Cara Habitat and fluvial geomorphology.
Masters   Krompart, Jason Hydrologic performance and water quality control in urban stormwater management.
Masters   Vetta, Mattew Evaluating sediment yield resulting from slope instability along the Schoharie Valley with Light Detection and Ranging (LiDAR) imagery and dendrogeomorphological methods.
Completed
Masters 2014 Molder, Bryce Sediment and nutrient mobilization in agricultural landscapes.