Professor
476 Wallace
(204) 474-8513
Dr. Papakyriakou conducts research in the area of microclimatology. In a broad sense his projects examine biosphere-atmosphere linkages for different environments within Canadian Arctic coastal and coastal marine environments through the study of surface heat budgets (i.e., the exchange of heat, water vapour, radiation, and momentum) and the air-surface exchange of biogenic gases, including CO2 and CH4. The Arctic Ocean and its peripheral seas undergo strong seasonal change. An objective of Dr. Papakyriakou’s work is to characterize the evolution of air-sea coupling across the seasonal transitions and to understand the geophysical, biological, and biogeochemical drivers that underpin observations of surface heat and carbon exchange with the atmosphere. The product of the research will assist in defining the role of sea ice on climate and weather, as well as on major biogeochemical cycles. Dr. Papakyriakou currently leads projects within the IPY’s Circumpolar Flaw Lead Experiment and Canada’s Network of Centres of Excellence, ArcticNet. His research is empirical and has a strong field component.
Research Contributions (since 2004)
(Names of students are bolded)
Publications in Review (5)
1. Stainton, E., T. Papakyriakou, R. Hesslein, and D. Barber, 2010: Summer air-water carbon dioxide exchange and water chemistry of the Churchill River. First review Ecohydrology.
2. Else, B., T. Papakyriakou, R. Galley, W. Drennan, L. Miller, and H. Thomas, 2010: Direct eddy covariance observations of CO2 fluxes associated with freezing sea ice: evidence for enhanced gas transfer?. J. Geophys. Res. First review.
3. Wong, F., L. Jantunen, M. Pucko, T. Papakyriakou, G. Stern, T. Bidleman, 2010: Air-water exchange of anthropogenic and natural organohalogens on International Polar Year (IPY) Expeditions in the Canadian Arctic. Second review. Environ. Sci. and Technol.
4. Miller, L., T. Papakyriakou, R. E. Collins, J. Deming, J. Ehn, R. Macdonald, O. Owens, A. Mucci, M. Raudsepp, and N. Sutherland, 2010: Carbon dynamics in sea ice: a winter flux time series. Second Review. J. Geophys. Res. (Oceans), 2009JC006058
5. Mundy, C.J., M. Gosselin, J.K. Ehn, C. Belzile, M. Poulin, A. Alou, S. Roy, H. Hop, T.N. Papakyriakou, D.G. Barber, J. Stewart. 2010. Characteristics of two distinct high-light acclimated microbial communities during advanced stages of sea ice melt. First review. Polar Biology.
Refereed publications (19)
6. Shadwick, E.H., H. Thomas, M. Chierici, B. Else, A. Fransson, C. Michel, L.A. Miller, A. Mucci, A. Niemi, T.N. Papakyriakou, and J.-E. Tremblay. 2010. Seasonal variability of the inorganic carbon system in the Amundsen Gulf region of the southeastern Beaufort Sea. Second review. Accepted Oct. 8, 2010. In press. Limnol. Oceanog
7. Vancoppenolle, M., R. Timmermann, S.F. Ackley, T. Fichefet, H. Goosse, P. Heil, C. Leonard, J. Lieser, M. Nicolaus, T. Papakyriakou, J-L Tison, 2010: Assessment of radiation forcing data sets for large-scale sea ice models in the Southern Ocean. Accepted April 12, 2010. In press. Deep Sea Res. II
8. Papakyriakou, T.N., and L. Miller, 2010: Springtime CO2 exchange over seasonal sea ice in the Canadian Arctic Archipelago. Accepted Sept. 8, 2010. In press. Ann. Glaciol.
9. Mucci, A., B. Lansard, L.A. Miller and T.N. Papakyriakou, 2009: CO2 fluxes across the air-sea interface in the southeastern Beaufort Sea: the ice-free period. J. Geophys. Res. (Oceans), 115 (4) C04003 2009GL03770
10. Mundy, C. J., Gosselin, M., Ehn, J., Gratton, Y., Rossnagel, A., Barber, D.G., Martin, J., Tremblay, J-E, Palmer, M., Arrigo, K., Damis, G., Fortier, L., Else, B., and T. Papakyriakou. 2009: Contributions of under-ice primary production to an ice-edge upwelling phytoplankton bloom in the Canadian Beaufort Sea. Geophys. Res. Let., Vol. 36, (17), L17601, DOI: 10.1029/2009GL038837.
11. Raddatz, R.L., T.N. Papakyriakou, K.A. Swystun, and M. Tenuta, 2009. Evapotranspiration from a wetland tundra sedge fen: surface resistance of peat for land-surface schemes. Agr. For. Meteor., 149 (5), 851-861.
12. Shadwick, E.H., T. Papakyriakou, A.E.F. Prowe, D. Leong, S.A. Moore, and H. Thomas, 2009: Carbon cycling in the Arctic Archipelago: the export of Pacific carbon to the North Atlantic, Biogeosciences Discuss., 6, (1), 971-994.
13. Xie, H., Belanger, S., Demers, S., Vincent, W., and T. Papapkyriakou, 2009, Photobiogeochemical cycling of carbon monoxide in the southeastern Beaufort Sea in spring and autumn, In review, Limnol. Oceanog., 08-164
14. Else, B.G.T., T.N. Papakyriakou, J.J. Yackel, M.A. Granskog, 2008: Observations of sea surface fCO2 and estimated air-sea CO2 fluxes in the Hudson Bay region (Canada) during the open-water season, J. Geophys. Res. (Oceans), 113, (8) C08026, doi: 10.1029/2007JC004389.
15. Else, B.G.T., J.J. Yackel, T.N. Papakyriakou 2008: An application of satellite remote sensing techniques for estimating air-sea CO2 fluxes in Hudson Bay, Canada during the ice-free season, Rem. Sens. Environ., 112, (9), 3350-3562
16. Ehn, J.K., T.N. Papakyriakou, and D.G. Barber, 2008: Inference of optical properties from radiation profiles within melting sea ice. J. Geophys. Res. (Oceans), 113, (9), C09024, doi: 10.1029/2007JC004656.
17. Langlois, A., T. Fisico, D. Barber, and T. Papakyriakou, 2008: The response of snow thermophysical processes to the passage of a polar low-pressure system and its impact on in-situ passive microwave radiometry: A case study. J. Geophys. Res. (Oceans), 113, C03S04, doi: 10.1029/2007JC004197
18. Huang, Q., J. Hanesiak, S. Savelyev, T. Papakyriakou, and P. Taylor, 2008: Visibility during blowing snow events over Arctic Sea Ice. Weath. Forecast., 23(4), 741-751
19. Hwang, B, J., A. Langlois, D. Barber, and T. Papakyriakou, 2007: On the detection of the thermophysical state of landfast first-year sea ice using microwave emissions during spring melt: Part 1. An in-situ study. Rem. Sens. Environ., RSE6928, 10.1016/j.rse.2007.02.033
20. Yackel, J.J., D.G. Barber, T Papakryriakou, and C. Breneman, 2007. First-year sea ice spring melt transitions in the Canadian Arctic Archipelago from time series SAR data, 1992-2002. Hydrol. Proc., 21, (2) 253-265.
21. Jin, X., D. Barber, and T. Papakyriakou, 2006: A new clear-sky downward longwave radiation flux parameteriation for Arctic areas based on rawinsonde data. J. Geophys. Res. (Atmos.), 111, (24) D24104, doi:10.1029/20005JD007039.
22. Ehn, J.K., M.A. Granskog, T. Papakyriakou, R. Galley, and D.G. Barber. 2006: Surface albedo observations of Hudson Bay land-fast sea ice during melt onset. Ann. Glaciol., International Glaciology Society, Vol. 44, 23-29.
23. Savelyev, S., M. Gordon, J. Hanesiak, T. Papakyriakou and P. Taylor, 2006, Blowing Snow Studies in Canadian Arctic Shelf Exchange Study, 2003-04. Hydrol. Proc. 20, 4, 817-827.
24. Quiring, S.M. and Papakryiakou, T.N., 2005. Characterizing the spatial and temporal variations in growing season moisture conditions in the Canadian Prairies. International Journal of Climatology, 25, 1,117-138.
