Thomas W. Walker [email protected] www.atmosp.physics.utoronto.ca/~twalker University of Toronto, Department of Physics 165 ½ Drummond St. 60 St. George St. Ottawa, ON Toronto, ON K1S 1K3 M5S 1A7 Canada Canada Education 2007-2013 University of Toronto, Department of Physics Doctor of Philosophy (convocation June 2014) Thesis: Applications of Adjoint Modelling in Chemical Composition: Studies of Tropospheric Ozone at Middle and High Northern Latitudes Supervisor: Dylan B. A. Jones 2005-2007 Dalhousie University, Department of Physics and Atmospheric Science Master of Science Thesis: Transport of Ozone and Reactive Nitrogen During INTEX-B Supervisor: Randall V. Martin 2000-2005 Carleton University, Department of Physics/Department of Electronics Bachelor of Engineering (Engineering Physics), with High Distinction Academic Experience Research Experience 2013-present Postdoctoral fellow, University of Toronto 2007-2013 Research assistant, University of Toronto 2005-2007 Research assistant, Dalhousie University Teaching Experience 2007-2011 Laboratory Teaching Assistant, University of Toronto • PHY151/PHY180 (Elements of Physics I, Laboratory Course) 2005-2007 Teaching Assistant, Dalhousie University • PHYC1280 (Introduction to Physics) • PHYC4595 (Introduction to Atmospheric Chemistry) • PHYC4570 (Light Scattering, Radiative Transfer, and Remote Sensing) Administrative Experience January 2009 Planning committee for ARC-IONS Data Workshop at University of Toronto September 2008 Planning committee for Centre for Global Change Science conference at University of Toronto Selected Honours and Awards 2008-2009 Ontario Graduate Scholarship 2008-2009 Walter C. Sumner Memorial Fellowship 2008 Centre for Global Change Science Graduate Student Research Award 2007-2008 University of Toronto Fellowship 2007 Dalhousie University Department of Physics Excellence in Teaching Award 2006-2007 NSERC Canadian Space Agency CGS Supplement 2005-2007 NSERC Canadian Graduate Scholarship (CGS M) 2000-2005 Nortel Networks Scholarship of Excellence 2004-2005 CMC Electronics Inc. Scholarship 2004-2005 Ontario Professional Engineers Foundation for Education Scholarship 2004 NSERC Undergraduate Student Research Award 2003-2004 C. A. B. Betts Memorial Scholarship in Physics 2002-2003 E. P. Hincks Memorial Scholarship in Physics 2000-2001 Canadian Merit Scholarship Foundation national finalist and regional scholar Refereed Publications Whaley, C. H., K. Strong, D. B. A. Jones, T. W. Walker, Z. Jiang, D. K. Henze, M. Cooke, C. A. McLinden, M. Pommier, R. L. Mittermeier, P. F. Fogal (2014). Improvements to our understanding of urban ozone air pollution: Sources of Toronto-area ozone during poor air quality events, submitted to J. Geophys. Res. Walker, T. W., Jones, D. B. A., Parrington, M., Henze, D. K., Murray, L. T., Bottenheim, J. W., Anlauf, K. G., Worden, J. R., Bowman, K. W., Shim, C., Singh, K., Kopacz, M., Tarasick, D. W., Davies, J., von der Gathen, P., and Carouge, C. C. (2012). Impacts of midlatitude precursor emissions and local photochemistry on ozone abundances in the Arctic, J. Geophys. Res. 117 (D01305), doi:10.1029/2011JD016370. Walker, T. W., Martin, R. V., van Donkelaar, A., Leaitch, W. R., MacDonald, A. M., Anlauf, K. G., Cohen, R. C., Bertram, T. H., Huey, L. G., Avery, M. A., Weinheimer, A. J., Flocke, F. M., Tarasick, D. W., Thompson, A. M., Streets, D. G., and Liu, X. (2010). Trans-Pacific transport of reactive nitrogen and ozone to Canada during spring, Atmos. Chem. Phys., 10, 8353-8372. van Donkelaar, A., Martin, R. V., Leaitch, W. R., Macdonald, A. M., Walker, T. W., Streets, D. G., Zhang, Q., Dunlea, E., Jimenez, J. L., Dibb, J. E., Huey, L. G., Weber, R., and Andreae, M. O. (2008). Analysis of Aircraft and Satellite Measurements from the Intercontinental Chemical Transport Experiment (INTEX-B) to Quantify Long-Range Transport of East Asian Sulfur to Canada, Atmos. Chem. Phys., 8, 2999-3014. Selected Conference Presentations Walker, T. W., Jones, D. B. A., Jiang, Z., Henze, D. K., and Paulot, F. Adjoint Sensitivity Analysis of North American Surface Ozone Concentrations: Implications for Dry Deposition, oral presentation to American Geophysical Union (AGU) Fall Meeting, San Francisco, CA, USA (December 2013) Whaley, C., Strong, K., Conway, S., Fast, H., Fogal, P. F., Mittermeier, R. L., Pommier, M., and Walker, T. W. Source attribution of Toronto regional air pollution measured with Fourier transform spectroscopy, poster presentation to AGU Fall Meeting, San Francisco, CA, USA (December 2013). Walker, T. W., Jiang, Z., Jones, D. B. A., Henze, D. K., Thompson, A. M., and Bowman, K. W. Regional assimilation of free tropospheric ozone from ozonesondes into a chemical transport model to assess lightning NOx emissions distribution over North America, poster presentation to Quadrennial Ozone Symposium, Toronto, ON, Canada (August 2012) Whaley, C., Strong, K., Jones, D. B. A., and Walker, T. W. Ground-based measurements of CH4, N2O, CO and O3 over Toronto and comparisons with the GEOS-Chem Model, oral presentation to European Geosciences Union General Assembly, Vienna, Austria (April 2011). Martin, R. V., Lamsal, L. N., Cooper, M. J., Padmanabhan, A., van Donkelaar, A., Walker, T. W., Zhang, Q., Sioris, C., Walker, K. A., Boone, C., Bernath, P. F., and Sauvage, B. Application of Satellite Remote Sensing for Timely Updates to Emission Inventories and Constraints on Ozone Production, (Invited) oral presentation to AGU Fall Meeting, San Francisco, CA, USA (December 2010). Walker, T. W., Parrington, M., Jones, D. B. A., Henze, D. K., Worden, J. R., Bowman, K. W., Bottenheim, J., Anlauf, K., Davies, J., Tarasick, D. W., and Thompson, A. M. Integrated analysis of the impact of long- range transport of midlatitude pollution on ozone abundances in the Arctic troposphere, oral presentation to Joint Assembly of American Geophysical Union, Toronto, ON, Canada (May 2009) Walker, T. W., Parrington, M., Jones, D. B. A., Henze, D. K., Worden, J. R., Bowman, K. W., Bottenheim, J., Anlauf, K., Davies, J., Tarasick, D. W., and Thompson, A. M. Transport and Chemistry of Tropospheric Ozone in the Arctic, oral presentation to Arctic Change Conference 2008, Quebec City, PQ, Canada (December 2008) Walker, T. W., Martin, R. V., van Donkelaar, A., Leaitch, W. R., MacDonald, A. M., Cohen, R. C., Huey, G., Avery, M., Weinheimer, A., Flocke, F., Tarasick, D. W., Thompson, A. M., Ziemke, J., Bucsela, E. Trans-Pacific Transport of Ozone and Reactive Nitrogen During Spring, poster presentation to American Geophysical Union Fall Meeting, San Francisco, CA, USA (December 2007) Professional Affiliations Member of the American Geophysical Union Proficiencies Languages and libraries: Fortran 77/90, IDL, C/C++, html, NetCDF, HDF4/5 Visualization tools: IDL, Matlab Models: GEOS-Chem and the GEOS-Chem adjoint model References available upon request.