Regional Indicators of Daily-to-Yearly Variability in Background Ozone to Inform Air Quality Standard Setting and Decision-Making

Lead PI: Arlene H. Fiore

Unit Affiliation: Ocean and Climate Physics, Lamont-Doherty Earth Observatory (LDEO)

February 2012 - July 2016
North America
Project Type: Research

DESCRIPTION: To set and implement effective U.S. air pollution policy, the balance between pollution formed from U.S. anthropogenic emissions versus from natural emissions, and transported into the region must be understood. To assist with this the team will improve the process of understanding regional background variability, scope the application of space based indicators to serve as proxies, and investigate how O3 responds to global warming using ground-based networks, ozonesondes, aircraft, and multi-sensor satellite products.

OUTCOMES: Established collaborations with regional and state air quality managers. Led or co-led cross-team collaborative activities focused on understanding differences in model estimates for background pollution, and understanding sources contributing to pollution episodes over the Eastern U.S., Mutiple studies on individual components of background ozone pollution, on links between air quality and climate, and the role of satellite data in advancing knowledge of these topics.


National Aeronautics & Space Administration




Princeton University Geophysical Fluid Dynamics Laboratory


Clifton, O. E., A. M. Fiore, G. Correa, L. W. Horowitz, and V. Naik (2014), Twenty-first century reversal of the surface ozone seasonal cycle over the northeastern United States, Geophys. Res. Lett., 41, 7343–7350, doi:10.1002/2014GL061378.

Duncan, B.N., A.I Prados, L. Lamsal, Y. Liu, D.G. Streets, P. Gupta, E. Hilsenrath, R.A. Kahn, J.E. Nielsen, A.J. Beyersdorf, S.P. Burton, A.M. Fiore, and 12 others (2014), Satellite data of atmospheric pollution for U.S. air quality applications: Examples of applications, summary of data end-user resources, answers to FAQs, and common mistakes to avoid, Atmos. Environ., 94, 647-662.

Fiore, Arlene M., Vaishali Naik, Eric M. Leibensperger (2015a), Air Quality and Climate Connections, J. Air & Waste Manage. Assoc., 65, 6, 645-685. (Invited Critical Review Paper).

Fiore, A. M., V. Naik, E.M. Leibensperger (2015b), A summary of the 45th A&WMA Critical Review: Air quality and climate connections, Environmental Manager (EM), June, 31-35.

Fiore, A.M., J.T Oberman, M. Lin, L. Zhang, O.E. Clifton, D.J. Jacob, V. Naik, L.W. Horowitz, J.P. Pinto (2014a), Estimating North American background ozone in U.S. surface air with two independent global models: Variability, uncertainties, and recommendations, Atmos. Environ., 96, 284-300.

Fiore, A.M., R.B. Pierce, R.R. Dickerson, M. Lin (2014b), Detecting and Attributing Episodic High Background Ozone Events, Environmental Manager (EM; Special Issue for NASA AQAST), Feb., 22-28.

Fiore, A.M., V. Naik, D. Spracklen, A. Steiner, N. Unger, M. Prather, D. Bergmann, P.J. Cameron-Smith, B. Collins, S. Dalsøren, G. Folberth, P. Ginoux, L.W. Horowitz, B. Josse, J.-F. Lamarque, T. Nagashima, F. O'Connor, S. Rumbold, D.T. Shindell, R.B. Skeie, K. Sudo, T. Takemura, G. Zeng, Global Air Quality and Climate, Chem. Soc. Rev., 41, 6663–6683, doi: 10.1039/c2cs35095e, 2012.

Kleinman, M.T., J.D. Bachmann, H.J. Feldman, D. McCabe, J.J. West, and A.M. Fiore (2015), Critical Review Discussion, Connecting Air Quality and Climate Change, J. Air & Waste Manage. Assoc., 65, 11, 1283-1291.

Lin, M., A. M. Fiore, L. W. Horowitz, A. O. Langford, S. J. Oltmans, and D. Tarasick, Climate variability modulates western U.S. ozone air quality in spring via deep stratospheric intrusions, Nature Communications, 6, 7105, doi:10.1038/ncomms8105.

Lin, M., A. M. Fiore , O. R. Cooper, L. W. Horowitz, A. O. Langford, H. Levy II, B. J. Johnson, V. Naik, S. J. Oltmans, and C. J. Senff (2012a), Springtime high surface ozone events over the western United States: Quantifying the role of stratospheric intrusions, J. Geophys. Res., 117, D00V22, doi:10.1029/2012JD018151.

Lin, M., A.M. Fiore, L.W. Horowitz, O.R. Cooper, V. Naik, J. Holloway, B.J Johnson, A.M. Middlebrook, S.J. Oltmans, I.B. Pollack, T.B. Ryerson, J.X. Warner, C. Wiedinmyer, J. Wilson, B. Wyman (2012b), Transport of Asian ozone pollution into surface air over the western United States in spring, J. Geophys. Res, 117, D00V07, doi:10.1029/2011JD016961.

Mickley, L.J., A.M. Fiore, D.K. Henze, Interactions between Climate Change and U.S. Air Quality, Environmental Manager (EM; Special Issue for NASA AQAST), Feb., 32-35.


global health models ozone air pollution national ambient air quality standard


Modeling and Adapting to Future Climate