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Kimberly Strong

Professor of Physics
Experimental Atmospheric Physics;
Spectroscopic Techniques;
Ground-Based, Balloon, and Satellite Remote Sounding of the Atmosphere

Telephone: (416) 946-3217
Fax: (416) 978-8905
Office: MP 710A
Lab: MP 038
Email: strong AT

Address: Department of Physics, University of Toronto
60 St. George Street
Toronto, Ontario, M5S 1A7, Canada

Research Papers Post-Docs Students Courses Links

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Brief CV

B.Sc., Department of Physics, Memorial University of Newfoundland (1986)
D.Phil., Atmospheric, Oceanic, and Planetary Physics Group, University of Oxford (1992)
Summer Student / Staff, International Space University (1988 / 1990)
Post-Doctoral Research Associate, Centre for Atmospheric Science, University of Cambridge (1992-94)
Research Associate, Centre for Atmospheric Chemistry, York University (1994-95)
Assistant Professor, Department of Earth and Atmospheric Science, York University (1995-96)
group Assistant Professor, Department of Physics, University of Toronto (1996-2001)
Associate Professor, Department of Physics, University of Toronto (2001-2006)
Professor, Department of Physics, University of Toronto (2006- )
Visiting Fellow, Centre for Atmospheric Chemistry, University of Wollongong (2010)
Member, Centre for Global Change Science, University of Toronto
Member, Graduate Faculty, School of the Environment, University of Toronto
Director, School of the Environment, University of Toronto (2013-2018)

Research Interests

In recent years, the study of the atmosphere has received increasing attention, with issues such as stratospheric ozone depletion, climate change, and tropospheric pollution all having potential implications for the biosphere. In order to understand the processes occurring in the atmosphere, measurements of its composition are essential. My research involves ground-based, balloon, and satellite remote sounding using spectroscopic techniques to measure the concentrations of trace gases. This is an exciting area of research, as it gives us insight into fundamental atmospheric physics and chemistry, and also has relevance to our interaction with the environment.


Previous Projects:

Near-infrared laboratory spectroscopy of methane in support of the Galileo mission to Jupiter
Ground-based ultraviolet-visible spectroscopy to measure the concentrations of stratospheric gases
Modelling the retrieval of vertical profiles of tropospheric gases using a ranging spectrometer
Intracavity laser spectroscopy using a Fourier transform spectrometer in step-scan mode for temporal resolution
Concept study for OH Measurements from Space (OHMS)
Middle Atmosphere Nitrogen TRend Assessment (MANTRA)

MANTRA I was the Principal Investigator for this project, which involved the launch of high-altitude balloons from Vanscoy, Saskatchewan in 1998, 2000, 2002, and 2004. Each carried a payload of instruments to measure vertical concentration profiles of stratospheric trace gases. The data have been used to investigate the changing chemical balance of the mid-latitude stratosphere, focussing on ozone, and nitrogen and chlorine compounds that play a role in ozone chemistry. This project was a large collaborative effort involving Co-Investigators from Environment Canada (formerly the Meteorological Service of Canada), the University of Toronto, York University, the University of Waterloo, the University of Denver, the Service d'Aeronomie, CNRS (France), and Scientific Instrumentation Limited. MANTRA was supported by the Canadian Space Agency, Environment Canada, NSERC, and CRESTech.

Current Projects:


Eureka I am one of the founding members of CANDAC - the Canadian Network for the Detection of Atmospheric Change. This is a group of university researchers, led by Prof. Jim Drummond who joined together in 2002 with the objective of improving the state of remote sounding research in the atmosphere in Canada. One of the first priorities of this group was to establish an Arctic laboratory, and in 2004 we were successful in obtaining funding from CFI to equip the Polar Environment Atmospheric Research Laboratory (PEARL) at an existing facility at Eureka, Nunavut that is being leased from Environment Canada. I am leader of the Arctic Middle Atmosphere Chemistry research theme, and mentor for three of the new instruments being installed PEARL (a Bruker IFS125HR Fourier transform spectrometer, a UV-visible grating spectrometer, and an Atmospheric Emitted Radiance Interferometer). Our goal is to provide a long-term dataset for studying the evolution of Arctic atmospheric chemistry and its interannual variability. In 2010, we began a new six-year NSERC CREATE Training Program in Arctic Atmospheric Science, for which I am the Director.

SCISAT-1 and the ACE-FTS and MAESTRO Satellite Instruments

ACE The Canadian Space Agency's Atmospheric Chemistry Experiment (ACE) was launched on SCISAT-1 on August 12, 2003, carrying two instruments: a Fourier Transform Spectrometer (ACE-FTS) and Measurements of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (MAESTRO). The primary goal of the mission is to measure and to understand the chemical and dynamical processes that control the distribution of ozone in the upper troposphere and stratosphere, with a focus on the decline of stratospheric ozone at northern mid-latitudes and in the Arctic. I am a Co-Investigator on the mission, as well as Co-Leader of the ACE validation effort. My interests lie in validation activities and interpretation of the satellite data in terms of stratospheric processes. As part of this validation effort, I am also Co-Leader of the ACE Arctic Validation Campaigns which have taken place at Eureka, Nunavut each polar sunrise since 2004. Students and PDFs from my group also participated in the testing and calibration of MAESTRO and ACE-FTS which took place in February-March 2003 at the University of Toronto's Space Instrument Characterization Facility.

The University of Toronto Atmospheric Observatory (TAO)

TAO We have been operating a high-resolution ABB Bomem DA8 Fourier transform infrared spectrometer at the University of Toronto Atmospheric Observatory (TAO) since October 2001, with routine measurements since May 2002. This instrument is used to record solar absorption spectra on a daily basis for long-term measurements of stratospheric and tropospheric trace gases, urban pollution and mid-latitude atmospheric chemistry studies, and satellite data validation. The TAO FTS meets the requirements of the international Network for the Detection of Atmospheric Composition Change (NDACC), allowing the absorption lines of about 30 molecules and isotopes, including ozone, chlorine reservoirs, nitrogen- and carbon-containing compounds, and dynamical tracers to be distinguished. TAO was approved as a Complementary Measurement Station by the NDACC Steering Committee in March 2004, based on the results of a refereed algorithm and data comparison exercise. TAO has received support from the University of Toronto, CFI, ORDCF, CRESTech, NSERC, ABB Bomem, CFCAS, and PREA.

Ground-Based UV-Visible Remote Sounding of the Stratosphere

Eureka Although the general mechanism for stratospheric ozone loss is now known, questions remain regarding the underlying chemical and dynamical processes, the potential for severe depletion in the Arctic, and the mechanisms for mid-latitude ozone loss. In order to address some of these questions, we have assembled a portable ground-based instrument to record UV-visible spectra of sunlight scattered from the zenith sky. A telescope can also be optically coupled to the spectrometer to allow night-time measurements using stars as sources of light. The resulting spectra are analyzed to retrieve vertical columns of ozone, NO2, OClO, and BrO using differential optical absorption spectroscopy, as well as vertical profiles of NO2. The instrument has been deployed on the ground during the four MANTRA campaigns and in springtime Arctic campaigns every year since 1999. All of the latter were at Environment Canada's former Arctic Stratospheric Observatory (now PEARL) at Eureka, Nunavut (80N), with one at Resolute Bay in 2002. This research is supported by NSERC, CFCAS, MSC, CSA, the Northern Scientific Training Program, and the Canadian Northern Studies Trust.

Ultraviolet-Visible-Infrared Laboratory Spectroscopy

Lab Spec A facility for laboratory spectroscopy in support of atmospheric remote sounding has been constructed for the measurement of absorption features of gases of atmospheric interest at high spectral resolution and over a range of temperatures. Several gas absorption cells, along with transfer optics and a cooling system, have been designed and built, and can be coupled to an ABB Bomem DA8 Fourier transform interferometer capable of operation at UV, visible, and IR wavelengths. Infrared spectra of CO have been obtained to demonstrate the thermal, vacuum, and optical performance of the our coolable 1.5-m cell, and we have also recently measured the infrared cross sections of the fluorotelomer alcohols 1:2, 4:2 and 6:2 FTOH, in a collaboration with colleagues at Ford Motor Company and Dupont Central Research and Development. We are currently working on the infrared spectroscopy of CFC-113, in support of the ACE mission. This project is supported by NSERC and the Canadian Space Agency.

  • "Line Broadening and Temperature Dependence in the 0->3 Overtone Band of Carbon Monoxide." C. Hnatovsky, et al.. Poster presentation to the OSA FTS meeting, Santa Barbara, CA, June 21-25, 1999. [Poster, PDF format, 0.7 MB]
  • "Laboratory Measurements of the Infrared Absorption Cross Sections of Fluorotelomer Alcohols." R. Dumoulin et al.. Poster presentation to the European Geosciences Union, Vienna, Austria, April 24-28, 2005. [Poster, PDF format, 2.8 MB]
  • "Measurement of the Infrared Absorption Cross-sections and Line Broadening of CFC-113 and Comparison with Calculations." K. Le Bris, J.C. Ng, S.M.L. Melo, and K. Strong. Poster presentation to the 19th International Conference on High Resolution Molecular Spectroscopy, Prague, Czech Republic, August 29 - September 2, 2006. [Poster, PDF format, 1.8 MB]

Stratospheric Science with the Odin Satellite

Odin Odin is a small satellite launched on February 20, 2001, that is being used for both aeronomy and astronomy. The Odin project is a collaboration between Sweden, Canada, France, and Finland, with the satellite developed by the Swedish Space Corporation. Odin carries two instruments, a Sub-Millimetre Radiometer (SMR) and a Canadian instrument called OSIRIS (Optical Spectrograph and InfraRed Imaging System). One goal of the Odin mission is to investigate polar and mid-latitude ozone depletion by making global measurements of trace species. I was involved in developing algorithms for the simulation of measurements and for the inversion of data to retrieve vertical concentration profiles from OSIRIS spectra of sunlight scattered from the Earth's limb. We are currently comparing Odin data with other measurements to study the chemical and dynamical processes that determine stratospheric composition.

Scientific Publications

Selected list, with copies available for download: Click here

Post-Doctoral Fellows and Research Staff - Enquiries welcome!


Hongjiang Wu Tobias Kerzenmacher Rebecca Batchelor Whitney Bader (PDF)
Orfeo Colebatch (Research Officer)
Stephanie Conway (PDF)
Lei Liu (PDF)
Sophie Tran (PDF)


Matthew Bassford
Rebecca Batchelor
Eric Dilligeard
Rowan Dundas
Elham Farahani
Tobias Kerzenmacher
Ashley Kilgour (CREATE Training Program Coordinator)
Karine Le Bris
PEARL FTS team Mareile Wolff Patrick Sheese Ashley Kilgour
Stella Melo
Yun-Seob Moon
Aubyn O'Grady (CREATE Training Program Coordinator)
Tarun Pant
Diane Pendlebury (Senior Research Associate)
Patrick Sheese
Keeyoon Sung
Camille Viatte
Aldona Wiacek
Mareile Wolff
Hongjiang Wu
Dmitry Yashcov
Yongjing Zhao

Graduate Students - Enquiries welcome!

Cyndi Whaley Dan Weaver Joseph Mendonca


Kristof Bognar (PhD; MSc September 2016)
Brendan Byrne (PhD)
Paul Godin (PhD)
Erik Lutsch (PhD; MSc September 2014)
Sebastien Roche (PhD; Visiting MSc student from Claude Bernard Lyon 1 University April-September 2014)
Ilya Stanevich (PhD)
Dan Weaver (PhD; MSc September 2012)
Shoma Yamanouchi (PhD)
Marie-Eve Gagne Kevin Olsen Rodica Lindenmaier


Xiaoyi Zhao (MSc September 2011, PhD April 2017, Thesis)
Joseph Mendonca (MSc September 2011, PhD January 2017,
Rodrigue Sandrin (Visiting MSc student from Claude Bernard Lyon 1 University April-September 2016)
Kevin Olsen (PhD January 2016,
Zhao-Cheng Zeng (Visiting PhD student from the Chinese University of Hong Kong, September 2014 - January 2015)
Zen Mariani (MSc September 2010, PhD September 2014,
Anthony Pugliese (MSc September 2014)
Cynthia Whaley (MSc September 2009, PhD August 2014,
Marie-Eve Gagne (PhD December 2012,
Conan Liu (MSc June 2012)
Cristen Adams (PhD May 2012, Thesis)
Rodica Lindenmaier (MSc September 2007, PhD February 2012,
Daniel Abreu (MSc September 2009)
Roopa Pandharpurkar (MSc September 2009)
Matt Toohey (MSc September 2003, PhD June 2009, Thesis)
Jeff Taylor (MSc September 2003, PhD June 2008, Thesis)
Zen Mariani Cristen Adams Xiaoyi Zhao
Annemarie Fraser (MSc September 2003, PhD May 2008, Thesis)
Peifeng Yan (MSc September 2007)
Guoying Qin (MSc January 2007)
Aldona Wiacek (MSc September 2001, PhD June 2006, Thesis)
Elham Farahani (MSc October 2000, PhD April 2006,
Jennifer Walker (MSc January 2006)
Robert Dumoulin (MSc September 2005)
Betsy Joseph (MSc October 2000)
Catherine Laurin (MSc September 1999)
Cyril Hnatovsky (MSc January 1999)
Ana Jofre (MSc January 1999)

Undergraduate Research Students - Enquiries welcome!

NSERC Undergraduate Research Awards - Opportunities for Summer 2017


Hayden Johnson (Part-time Research Assistant, 2016-17; CGSC Intern, Summer 2017)
Romina Piunno, University of Toronto (CGSC Intern, Summer 2017)


Michael Maurice Boris Pavlovic Jenny Kliever Natalie Gervasi, McMaster University (Co-op Research Assistant, Fall 2016)
Kanupria Seth, University of Toronto (CGSC Intern, Summer 2016)
Jerry Zhai, University of Toronto (Galbraith Society Research Experience Program, Fall 2015 - Winter 2016)
Tailong He, University of Toronto (CGSC Intern, Summer 2015; P/T Research Assistant, Fall 2015 - Winter 2016)
Alex Cabaj, University of Toronto (Research Assistant, Summer 2015)
Tobias Oberholzer (Visiting student from ETH Zurich, Spring 2015)
Bernard Yang, McGill University (NSERC USRA, Summer 2014)
Helen Droz-Georget (Visiting student from ETH Zurich, Spring 2014)
Anna Phillips (Env. Canada Science Horizons Intern, 2013-14)
Gaetan Wuilloud (Visiting student from Ecole Polytechnique Federale de Lausanne, Summer 2013)
Kostya Golovan, University of Toronto (NSERC CREATE Intern, Summer 2013)
Anthony Pugliese, University of Toronto (CSA CAFTON Intern, Summer 2013)
John Hartley, University of Toronto (PHY479Y, 2012-13)
Marlyn McIntosh (Env. Canada Science Horizons Intern, 2012-13)
Philippa Krahn, Queen's University (CGSC Intern, Summer 2012)
Mark Semelhago, University of Toronto (NSERC CREATE Intern, Summer 2012)
Jenny Kliever (Env. Canada Science Horizons Intern, 2011-12)
Michael Maurice, Georgian College (CREATE Co-op Technical Assistant, Summer 2011)
Boris Pavlovic, University of Guelph (CGSC Intern, Summer 2011)
Melanie Bieli (Visiting student from ETH Zurich, Spring 2011)
Dan Weaver (Env. Canada Science Horizons Intern, 2010-11)
Joseph Mendonca (Env. Canada Science Horizons Intern, 2009-10)
Joo-Hyung (David) Park, University of Toronto (NSERC USRA, Summer 2009; PHY478F, Fall 2009)
UofT Team Maryam Akrami Maryam Akrami (Env. Canada Science Horizons Intern, 2008-09)
Deepak Chandan, University of Toronto (PHY478F, Fall 2008)
Zen Mariani, UWO (CGSC Intern, Summer 2008)
Suri Like (Environment Canada Science Horizons Intern, 2007-08)
Felicia Kolonjari, University of Toronto (CGSC Intern, Summer 2007)
Nir Friedman, University of Toronto (Research Assistant, Summer 2007)
Jason Ng, University of Toronto (ESC499Y, 2006-07 and NSERC USRA, Summer 2006)
Kevin Hurley, University of Toronto (ESC499Y, 2006-07)
Rodica Lindenmaier (Research Assistant, Summer 2006)
Hristina Popova, University of Toronto (CGSC Intern, Summer 2006)
Golnoush Hassanpour, University of Guelph (Co-op RA, Spring 2006)
Darren Prater, University of Guelph (Co-op Research Assistant, Spring 2006)
Matt and Martin UofT Team Dale Edwards, University of Guelph (Co-op Research Assistant, Fall 2005)
Michael Jensen, University of Guelph (NSERC USRA, Summer 2005)
Eric Paradis, University of Waterloo (NSERC USRA, Summer 2005)
Christopher Avis, University of Victoria (NSERC USRA, Summer 2004)
Laurent Castera, Ecole Polytechnique (Exchange Student, Summer 2004)
Olivia Chiu, Queen's University (NSERC USRA, Summer 2004)
Chuan Li, University of Toronto (NSERC USRA, Summer 2004)
Rebecca Saari, University of Toronto (ESC499Y, 2004-05, and Research Assistant, Summer 2003 & 2004)
Jennifer Walker, University of Toronto (NSERC USRA, Summer 2003 and and Summer 2004)
Eufrasio Alfonso Leon (Research Assistant, Fall 2003 - Winter 2004)
Gerald Chang, McGill University (NSERC USRA, Summer 2003)
MAESTRO October 2002 Team ACE Arctic team Brige Chugh, University of Toronto (Research Assistant, Summer 2003)
David Barclay, McGill University (NSERC USRA, Summer 2002)
Nazlie Faridi, University of Victoria (NSERC USRA, Summer 2002)
Rodney Sullivan, University of Toronto (Research Assistant, Summer 2002 - Spring 2003)
Martin Tingley, University of Toronto (NSERC USRA, Summer 2002 - Spring 2003)
Matt Toohey, UBC (Research Assistant, Summer 2002)
Helen Czerski (Graduate Research Assistant, Fall 2001)
Annemarie Fraser, University of Toronto (PHY 479Y, 2001-02, and NSERC USRA, Summer 2001)
Patrick Rourke, University of Toronto (PHY 299Y, 2000-01 and NSERC USRA, Summer 2001)
Koruger Adcock, Simon Fraser University (Research Assistant, Summer 2000)
James Anstey, Simon Fraser University (NSERC USRA, Summer 2000)
Andrew Bennett, UBC(NSERC USRA, Summer 2000)
MANTRA2000 Team Colette Heald (PHY 455Y, Queen's University, 1999-2000)
Stella Kim, University of Toronto (PHY 299Y, 1999-2000)
Ryan Sullivan, University of Toronto (PHY 299Y, 1999-2000)
John Halpine, Mount Allison University (NSERC USRA, Summer 1999)
Colette Heald, Queen's University (NSERC USRA, Summer 1999)
Neilank Jha, University of Toronto (PHY 299Y, 1998-99)
Ranpal Dosanjh, Trent University (Research Assistant, Summer 1998)
Debra Wunch, University of Toronto (Research Assistant, Summer 1998)
Leah Kamyabee, University of Toronto (PHY 478S, Spring 1998)
Erik Forsberg, University of Toronto (PHY 299Y, 1997-98 & Research Assistant, Summer 1998 - Spring 1999)
Keir Menzies, University of Toronto (PHY 299Y, 1997-98 & Research Assistant, Summer 1998 - Spring 1999)
Stacey Crane, University of Toronto (ESC 499Y, Fall 1997)
Cyril Hnatovsky (Research Assistant, Fall 1997)
Rupinder Brar, University of Toronto (PHY 478H & Research Assistant, Summer 1997)
Joanna Fromstein, University of Toronto (Research Assistant, Summer 1997)


Undergraduate Lecture and Laboratory Courses:

Fall 2011/2012: PHY 492F, Advanced Atmospheric Physics (and calendar description) - same as PHY1498
Spring 2011: PHY 392S, Physics of Climate (and calendar description)
Spring 2011/2012/2013: JPH 441S, Physical Science in Contemporary Society (and calendar description)
Fall 2009 & Spring 2012/2013: PHY 100F, The Magic of Physics (and calendar description)
Spring 2009: PHY 132S, Introduction to Physics II - Electromagnetism Section (and calendar description)
Spring 2006/2007/2008: PHY 138Y, Physics for the Life Sciences - Electromagnetism Section
Spring 2004/2005/2006/2007/2008/2009: PHY 315S, Radiation in Planetary Atmospheres
Fall 2003: PHY 305F, Electronics Laboratory I
Spring 2002: PHY 325/326/425/426, Modern Physics Laboratory
Fall 1998/1999/2000/2001: PHY 140Y, Foundations of Physics
Spring 1997/1998/1999/2000/2002/2004/2005: PHY 499S/1499S, Earth Observations from Space

Undergraduate Research and Reading Courses: - Enquiries welcome!

Summer 2002: PHY 372H, Supervised Reading Course
Summer 1999: PHY 472H, Directed Studies - Earth Observations from Space
Fall/Spring 1997-98/1998-99/1999-2000/2000-01: PHY 299Y, Research Opportunity Program
Fall/Spring 1997-98/2004-05/2006-07: ESC 499Y, Engineering Science Thesis Project
Summer 1997, Spring 1998, Fall/Spring 2001-02, Fall 2008, Fall 2009, Fall/Spring 2012-13: PHY 478H/479Y, Physics Undergraduate Research Project

Graduate Courses:

Fall 2011: PHY 1498F, Introduction to Atmospheric Physics (and calendar description) - same as PHY492
Fall 2001: PHY 1830F, Foundation Course in Atmospheric Physics (co-taught by Prof. W.R. Peltier)
Spring 1997/1998/1999/2000: PHY 499S/1499S, Earth Observations from Space
Fall 1997/2000: PHY 2107F, Experimental Methods in Physics (coordinated by Prof. S. Morris (1997) and Dr. S. Tawfiq (2000))
Fall 1997: PHY 2501F, Atmospheric Physics - Radiation

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Earth, Atmospheric, and Planetary Physics Group
Department of Physics
Centre for Global Change Science
School of the Environment
University of Toronto
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This site is maintained by: Kimberly Strong
Last updated: July 2017