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Group Members

For more information about the PI, Debra Wunch, please visit: About the PI.

Current Graduate Students

PhD candidates

Name Enrollment Date Publications
Eric Ward 2024
Ceren Demirci 2024
Anas Ali 2023
Jon-Paul Mastrogiacomo 2022 Mastrogiacomo et al. Estimating Urban CH4 Emissions from Satellite-Derived Enhancement Ratios of CH4, CO2, and CO, submitted to JGR, 2025
Lawson Gillespie 2020 Gillespie, et al. (2025). Estimating methane emissions from the waste sector in Southern Ontario using atmospheric measurements. Journal of the Air & Waste Management Association, 75(2), 144–163. https://doi.org/10.1080/10962247.2024.2435340
Sabrina Madsen 2019 Madsen et al.; CO2 fluxes of vegetation in the Greenbelt of Ontario and increased net ecosystem emissions associated with its removal. Elementa: Science of the Anthropocene 12 January 2024; 12 (1): 00102. doi: https://doi.org/10.1525/elementa.2023.00102

Master's students

Name Program Enrollment Date
Jaden Phillips MES 2024-2025
Javeria Rizwan Physics 2024-2025

Postdoctoral Fellows and Research Associates

Name Dates Publications
Christian DiMaria 2024-present
Mark Panas 2024-present
Nicole Jacobs 2023-present
Md Abdul Halim 2022-present
Olalekan Balogun 2022-present

Former Group Members

PhD candidates

Name Graduation Date Current Position Thesis & Publications
Nasrin Pak 2022 Postdoc at KIT Garmisch Thesis: Quantifying Methane Emissions from the Greater Toronto Area

Mostafavi Pak, N., S. Heerah, J. Zhang, E. Chan, D. Worthy, F. Vogel, and D. Wunch (2021), The Facility Level and Area Methane Emissions inventory for the Greater Toronto Area (FLAME-GTA), Atmos. Environ., 252(March), 118319, doi:10.1016/j.atmosenv.2021.118319.

Mostafavi Pak, N., Hedelius, J. K., Roche, S., Cunningham, L., Baier, B., Sweeney, C., Roehl, C., Laughner, J., Toon, G., Wennberg, P., Parker, H., Arrowsmith, C., Mendonca, J., Fogal, P., Wizenberg, T., Herrera, B., Strong, K., Walker, K. A., Vogel, F., and Wunch, D.: Using portable low-resolution spectrometers to evaluate Total Carbon Column Observing Network (TCCON) biases in North America, Atmos. Meas. Tech., 16, 1239–1261, https://doi.org/10.5194/amt-16-1239-2023, 2023.
Sébastien Roche 2021 Scientist, MethaneSAT Science Thesis: Measurements of Greenhouse Gases from Near-Infrared Solar Absorption Spectra

Roche, S., Strong, K., Wunch, D., Mendonca, J., Sweeney, C., Baier, B., Biraud, S. C., Laughner, J. L., Toon, G. C., and Connor, B. J.: Retrieval of atmospheric CO2 vertical profiles from ground-based near-infrared spectra, Atmos. Meas. Tech., 14, 3087–3118, https://doi.org/10.5194/amt-14-3087-2021, 2021.

Master's students

Name Program Graduation Date Thesis & Publications
Ceren Demirci Physics 2024 Global and Regional CO2 Budget Analysis Using GEOS-Chem
William Ma MES 2024 Heat Inequity and Community Vulnerability in Toronto
Sicheng Dai MES 2023 Measuring and Comparing the Concentration of PM2.5 in the GTA using Low-cost Sensors
Jon-Paul Mastrogiacomo Physics 2022 Methane enhancement ratios over Toronto
Lawson Gillespie Physics 2020 Measurements of Greenhouse Gases in the Greater Toronto Area

Postdoctoral Fellows

This table contains a list of former postdocs in the group, the dates they joined and left the group, and the publications that resulted form their postdoctoral work.

Name Dates Current Position Publications
Sina Voshtani 2022-2024 Research Scientist at ECCC Voshtani et al. Quantifying CO emissions from boreal wildfires by assimilating TROPOMI and TCCON observations, submitted to ACP, 2025.
Erik Lutsch 2019-2022 Research Scientist at ECCC Lutsch et al. Can the data assimilation of CO from MOPITT or IASI constrain high-latitude wildfire emissions? A Case Study of the 2017 Canadian Wildfires. Under review.
Sébastien Ars 2018-2019 Physical scientist at ECCC Sébastien Ars, Felix Vogel, Colin Arrowsmith, Sajjan Heerah, Emily Knuckey, Juliette Lavoie, Christopher Lee, Nasrin Mostafavi Pak, Jaden L. Phillips, and Debra Wunch. Investigation of the Spatial Distribution of Methane Sources in the Greater Toronto Area Using Mobile Gas Monitoring Systems. Environmental Science & Technology 2020 54 (24), 15671-15679 DOI: 10.1021/acs.est.0c05386
Joseph Mendonca 2017-2019 Research Scientist at ECCC Mendonca, J., Nassar, R., O'Dell, C. W., Kivi, R., Morino, I., Notholt, J., Petri, C., Strong, K., and Wunch, D.: Assessing the feasibility of using a neural network to filter Orbiting Carbon Observatory 2 (OCO-2) retrievals at northern high latitudes, Atmos. Meas. Tech., 14, 7511–7524, https://doi.org/10.5194/amt-14-7511-2021, 2021.
Jacob Hedelius 2017-2019 Calibration Engineer and Data Scientist at the Space Dynamics Laboratory Hedelius, J. K., Toon, G. C., Buchholz, R. R., Iraci, L. T., Podolske, J. R., Roehl, C. M., et al. (2021). Regional and urban column CO trends and anomalies as observed by MOPITT over 16 years. Journal of Geophysical Research: Atmospheres, 126, e2020JD033967. https://doi.org/10.1029/2020JD033967

Hedelius, J. K., He, T.-L., Jones, D. B. A., Baier, B. C., Buchholz, R. R., De Mazière, M., Deutscher, N. M., Dubey, M. K., Feist, D. G., Griffith, D. W. T., Hase, F., Iraci, L. T., Jeseck, P., Kiel, M., Kivi, R., Liu, C., Morino, I., Notholt, J., Oh, Y.-S., Ohyama, H., Pollard, D. F., Rettinger, M., Roche, S., Roehl, C. M., Schneider, M., Shiomi, K., Strong, K., Sussmann, R., Sweeney, C., Té, Y., Uchino, O., Velazco, V. A., Wang, W., Warneke, T., Wennberg, P. O., Worden, H. M., and Wunch, D.: Evaluation of MOPITT Version 7 joint TIR–NIR XCO retrievals with TCCON, Atmos. Meas. Tech., 12, 5547–5572, https://doi.org/10.5194/amt-12-5547-2019, 2019.

Hedelius, Jacob; Wunch, Debra, 2019, "Mass conserving quartic-spline and linear interpolation techniques over variable width partitions", https://doi.org/10.5683/SP2/57ROYV, Scholars Portal Dataverse, V1

Members Group Members

Prof. Debra Wunch
PI