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Tim Papakyriakou

Professor

Department of Environment and Geography

Ph.D. University of Waterloo: Geography
M.Sc. Queen's University: Geography
B.Sc. McMaster University: Geography

Research Interests

Dr. Papakyriakou conducts research in the area of microclimatology. In a broad sense his research examines biosphere-atmosphere linkages for different environments within Canadian Arctic coastal and coastal marine environments to tease out the complex interplay among components of the surface heat budget, the air-sea exchange of biogenic gases, including CO2 and CH4, and a host of physical, chemical and biological processes that underpin the exchange. The Arctic Ocean and its peripheral seas undergo strong seasonal change, and are often subject to regional controls. An objective of Dr. Papakyriakou's work is to understand the nature of process linkages that drive air-sea coupling across the seasonal transitions, and over a variety of important coastal environments. Research will assist in defining the role of rapidly changing Earth systems on major biogeochemical cycles with ramifications on both the atmosphere and ocean. Research is empirical and has a strong field component.
Dr. Papakyriakou has been a project lead in major networks, including
IPY-CFL
NCE ArcticNet
NSERC CRD BaySYS

Select Publications Since 2011:

Burt, W.J., Thomas, H., Miller, L.A., Granskog, M.A., Papakyriakou, T.N., Pengelly, L. Inorganic carbon cycling and biogeochemical processes in an Arctic inland sea (Hudson Bay) (2016) Biogeosciences, 13 (16), pp. 4659-4671.

Sievers, J., Sørensen, L.L., Papakyriakou, T., Else, B., Sejr, M.K., Haubjerg Søgaard, D., Barber, D., Rysgaard, S. Winter observations of CO2 exchange between sea ice and the atmosphere in a coastal fjord environment (2015) Cryosphere, 9 (4), pp. 1701-1713.

Sievers, J., Papakyriakou, T., Larsen, S.E., Jammet, M.M., Rysgaard, S., Sejr, M.K., Sørensen, L.L. Estimating surface fluxes using eddy covariance and numerical ogive optimization (2015) Atmospheric Chemistry and Physics, 15 (4), pp. 2081-2103.

Forest, A., Coupel, P., Else, B., Nahavandian, S., Lansard, B., Raimbault, P., Papakyriakou, T., Gratton, Y., Fortier, L., Tremblay, J.-É., Babin, M. Synoptic evaluation of carbon cycling in the Beaufort Sea during summer: Contrasting river inputs, ecosystem metabolism and air-sea CO2 fluxes (2014) Biogeosciences, 11 (10), pp. 2827-2856.

Carnat, G., Zhou, J., Papakyriakou, T., Delille, B., Goossens, T., Haskell, T., Schoemann, V., Fripiat, F., Rintala, J.-M., Tison, J.-L. Physical and biological controls on DMS,P dynamics in ice shelf-influenced fast ice during a winter-spring and a spring-summer transitions (2014) Journal of Geophysical Research: Oceans, 119 (5), pp. 2882-2905.

Else, B.G.T., Papakyriakou, T.N., Raddatz, R., Galley, R.J., Mundy, C.J., Barber, D.G., Swystun, K., Rysgaard, S. Surface energy budget of landfast sea ice during the transitions from winter to snowmelt and melt pond onset: The importance of net longwave radiation and cyclone forcings (2014) Journal of Geophysical Research: Oceans, 119 (6), pp. 3679-3693.

Hanis, K.L., Tenuta, M., Amiro, B.D., Papakyriakou, T.N. Seasonal dynamics of methane emissions from a subarctic fen in the Hudson Bay Lowlands (2013) Biogeosciences, 10 (7), pp. 4465-4

Else, B.G.T., Papakyriakou, T.N., Asplin, M.G., Barber, D.G., Galley, R.J., Miller, L.A., Mucci, A. Annual cycle of air-sea CO2 exchange in an Arctic Polynya Region (2013) Global Biogeochemical Cycles, 27 (2), pp. 388-398.

Else, B.G.T., Galley, R.J., Lansard, B., Barber, D.G., Brown, K., Miller, L.A., Mucci, A., Papakyriakou, T.N., Tremblay, J.-É., Rysgaard, S. Further observations of a decreasing atmospheric CO2 uptake capacity in the Canada Basin (Arctic Ocean) due to sea ice loss (2013) Geophysical Research Letters, 40 (6), pp. 1132-1137.

Fransson, A., Chierici, M., Miller, L.A., Carnat, G., Shadwick, E., Thomas, H., Pineault, S., Papakyriakou, T.N. Impact of sea-ice processes on the carbonate system and ocean acidification at the ice-water interface of the Amundsen Gulf, Arctic Ocean (2013) Journal of Geophysical Research: Oceans, 118 (12), pp. 7001-7023.

Else, B.G.T., Papakyriakou, T.N., Galley, R.J., Mucci, A., Gosselin, M., Miller, L.A., Shadwick, E.H., Thomas, H. Annual cycles of pCO2 in the southeastern Beaufort Sea: New understandings of air-sea CO2 exchange in arctic polynya regions (2012) Journal of Geophysical Research: Oceans, 117 (4), art. no. C00G13, .

Papakyriakou, T., Miller, L. Springtime CO2 exchange over seasonal sea ice in the Canadian Arctic Archipelago (2011) Annals of Glaciology, 52 (57 PART 2), pp. 215-224.

Else, B.G.T., Papakyriakou, T.N., Galley, R.J., Drennan, W.M., Miller, L.A., Thomas, H. Wintertime CO2 fluxes in an Arctic polynya using eddy covariance: Evidence for enhanced air-sea gas transfer during ice formation (2011) Journal of Geophysical Research: Oceans, 116 (9), art. no. C00G03, .

Courses Taught

GEOG 2310 Introduction to Physical Hydrology
GEOG 3320 Microclimates and Microenvironments
GEOG 4310 Topics in Boundary Layer Climatology
GEOG 4560 Techniques in Climatology

Contact

594 Wallace Building
University of Manitoba
Winnipeg, MB
R3T 2N2

(204) 474-8513

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