User:Tomhlane/Professor Nigel T. Roulet

= Nigel T. Roulet = Nigel T. Roulet, born 1955 is a research professor employed in the Geography Department of McGill University in Montreal. He has served a number of roles, currently serving as the Chair of the McGill Department of Geography. Nigel is active in the climate and global change community having been involved in the United Nations Environmental Program assessment of climate change, called the Intergovernmental Panel on Climate Change.

Educational Background
Roulet achieved both a B.Sc. and an M.Sc in biology and physical geography from Trent University in Peterborough ON, in 1979 and 1981 respectively. Then pursued a PhD in Geography from McMaster University in 1985, specializing in permafrost hydrology.

Teaching Background
Roulet then spent the first nine years of his academic career teaching and researching in the Department of Geography at York University in Toronto, prior to moving to the department of Geography at McGill University in 1994, where he has spent the last 26 years. At McGill, he has held positions as the Director of the Centre for Climate and Global Change Research (1996-2002), and the McGill School of Environment (2003-2008), prior to being promoted to the Chair of the McGill Department of Geography. He currently teaches both undergraduate and graduate Geography and Environment (MSE) classes at McGill University in Montreal as a tenured professor

Research Past and Current
Roulet's expansive research has hit many aspects of Physical Geography and Climate change, ranging from studying arctic permafrost hydrology and biogeochemistry to carbon sequestration and transport in old forests. His primary research interests include interactions among climate, hydrology, and ecosystem structure and function that determine the biogeochemistry of the gaseous exchanges between ecosystems and the atmosphere and the lateral water exchanges between ecosystems within catchments. His primary ecosystems of interest are forests, peatlands and shallow lakes ranging from boreal, subarctic, and Arctic biomes. His approach includes the scale of individual plants, wetlands, and landscapes as well as larger scale projects that utilize recently simulation and environmental modelling techniques.

Listed below is his personal current projects as he has outlined:


 * Assessing the structure and function of peatlands of the Hudson Bay Lowlands to determine their sensitivity to climate change
 * Biogeochemistry and hydrology of peatlands experiencing land-use and climate change from the boreal to Arctic eco-climatic regions
 * Simulating the contemporary carbon dynamics and the long-term carbon accumulation and development of northern peatland ecosystems
 * Production, transport, transformation and export of carbon and nitrogen from old growth forest catchment in areas of high nitrogen deposition.

Awards
In 2014, Nigel Roulet was awarded as a member of the Royals Society of Canadian Fellows into the Academy of Sciences, as well as Awarded by McGill as a James McGill Professor of Biogeosciences in 2019.

Selected Bibliography of Research
Basiliko, N., T.R Moore, P.M. Lafleur, and N.T Roulet. Seasonal and inter-annual decomposition, microbial biomass, and nitrogen dynamics in a Canadian bog. Soil Science (in press). *

Wang, Y., L.A.M. Mysak, and N.T. Roulet. Holocene climate and carbon dynamics: Experiments with the “green” McGill Paleoclimate Model. Global Biogeochemical Cycles 2005GB002484, 2005 (in press). *

Letts, M., P.M. Lafleur, and N.T. Roulet. On the relationship between cloudiness and net ecosystem carbon dioxide exchange in s peatland ecosystem. Ecoscience 12:53-59, 2005.*

Lafleur, P.M., R.A. Hember, S.W. Admiral and N.T. Roulet. Annual and seasonal variability in evapotranspiration and water table at a shrub-covered bog. Hydrological Processes (in press)

J. Turunen, N.T. Roulet, T. R. Moore, and P.J.H. Richard. Nitrogen deposition and increased carbon accumulation in ombrotrophic peatlands in eastern Canada. Global Biogeochemical Cycles 18: GB3002, doi:10.1029/2003GB002145, 2004.*

Cleary, J., N.T. Roulet and T.R. Moore. Greenhouse gas emissions from Canadian peat extraction, 1990-2000: A life cycle analysis. Ambio (in press), 2004.*

Lafleur, P.M., T.R. Moore, N.T. Roulet, and S. Frolking. Dependency of ecosystem respiration in a cool temperate bog on peat temperature and water table. Ecosystems 2005.

Moore, T.R, C. Blodau, J. Turunen, and N. Roulet. N and S accumulation in bogs. Global Change Biology 11, 356–367, doi: 10.1111/j.1365-2486.2004.00882, 2004.

Roehm. C. L., and N.T. Roulet. The seasonal contribution of CO2 fluxes in the annual C budget of a northern bog. Global Biogeochemical Cycles 17:(1), 2002GB001889, 2003.*

Moore, T.R., Matos, L., and N.T. Roulet. Dynamics and chemistry of dissolved organic carbon in Precambrian shield catchments and an impounded wetland. Canadian J. Fisheries and Aquatic Sciences (in press).

Wilsey, B.J., G. Parent, N.T. Roulet, T.R. Moore, and C. Potvin. Tropical pasture carbon cycling: relationships between C source/sink strength, above-ground biomass and grazing. Ecology Letters 5: 367-376, 2002 *

Branfireun, B.A., and N.T. Roulet. The boreal catchment hydrological cascade: controls on the fate and transport of methylmercury. Hydrology and Earth Ssystem Sciences 6:785-794, 2002 *

Grant, R., N.T. Roulet, and P. Crill, Methane efflux from boreal wetlands: theory and evaluating the ecosystem model ecosys with chamber and tower flux measurements, Global Biogeochemical Cycles 16(4) 2001GB001702, 2002.

Frolking, S., N.T. Roulet, T.R. Moore, P.M. Lafleur, J.L. Bubier and P.M. Crill. Modeling the seasonal and annual carbon balance of Mer Bleue bog, Ontario, Canada. Global Biogeochemical Cycles 16:(3) 2001GB001457, 2002.

McBean, G., A. Weaver, and N.T. Roulet. The Science of Climate Change. ISUMA: Canadian Journal of PolicyResearch 2:16-25, 2001.