Atmospheric Chemistry Division
Earth System Laboratory
National Center for Atmospheric Research
Ph.: +1 303 497 2915
Fx.: +1 303 497 1400
My research is on studying the composition of the troposphere using satellite and in-situ observations (e.g. aircraft and ground-based measurements taken during field campaigns) in conjunction with regional and global atmospheric models. I am addressing the link between local pollution processes and regional and global pollution in my current work. Gases and aerosols emitted from local human activities, in addition to natural sources, might change atmospheric composition on inter-continental or even global scales coupled through mixing, transport and chemical transformation. This makes local air quality a global issue and, as further consequence, also a factor in climate change. Air quality issues are also linked to public policy applications because many of the pollutants emitted by human activity are known to have detrimental impacts on health and natural and managed ecosystems with a direct bearing on human welfare and environmental quality.
Current research topics include e.g. the intercontinental transport of pollution across the Pacific and how it impacts regional and local air quality over North America, summertime ozone in the Colorado Front Range, the impacts of boreal wildfires on air quality and climate, or the feedbacks between changes in climate, weather and air quality.
- Interview in Bridges Online. Bridges Online is a publication of the Office of Science and Technology of the Embassy of Austria in Washington, DC .
- How Pollution Affects Your Health – An Interview with RadioMD
- Video Interview Prediction of North American Air Quality shown at the Front Range Consortium for Research Computing (created by Clara Elisabeth Boland)
- NCAR/NSF Video on FRAPPE
- Measurements of Pollution in the Troposphere (MOPITT) - Satellite Retrievals of CO
- The Front Range Air Pollution and Photochemistry Experiment (FRAPPE)
Selected Recent Publications:
Ghude, S. D., C. Jena, D. M. Chate, G. Beig, G. G. Pfister, R. Kumar, V. Ramanathan, 2014: Reductions in India's crop yield due to ozone, Geophys. Res. Lett., 41, doi:10.1002/2014GL060930.
Pfister, G., S. Walters, J.-F. Lamarque, J. Fast, M. Barth, J. Done, G. Holland, and C. Bruyere, 2013: Prediction of Future Summertime Ozone over the U.S., J. Geophys. Res., 119, 5559–5582, doi:10.1002/2013JD020932.
Pfister, G., S. Walters, L.K. Emmons, and D.P. Edwards (2013), Quantifying the contribution of inflow on surface ozone over California, J. Geophys. Res., 118, doi:10.1002/2013JD020336.
Pfister, G.G., J. Avise, C. Wiedinmyer, D. P. Edwards, L. K. Emmons, G. D. Diskin, J. Podolske, and A. Wisthaler (2011): CO source contribution analysis for California during ARCTAS-CARB, Atmos. Chem. Phys., 11, 7515-7532, doi:10.5194/acp-11-7515-2011.
Pfister, G. G., Parrish, D., Worden, H., Emmons, L. K., Edwards, D. P., Wiedinmyer, C., Diskin, G. S., Huey, G., Oltmans, S. J., Thouret, V., Weinheimer, A., and Wisthaler, A. (2010): Characterizing summertime chemical boundary conditions for airmasses entering the US West Coast, Atmos. Chem. Phys., 11, 1769-1790, doi:10.5194/acp-11-1769-2011.
Pfister, G.G., L.K. Emmons, D.P. Edwards, A. Arellano, G. Sachse, T. Campos: Variability of springtime transpacific pollution transport during 2000–2006: the INTEX-B mission in the context of previous years, Atmos. Chem. Phys., 10, 1345-1359, 2010.
Emmons, L.K., S. Walters, P. Hess, J-F Lamarque, G. Pfister, D. Fillmore, C. Granier, A. Guenther, D. Kinnison, T Laepple, J. Orlando, X. Tie, G. Tyndall, C. Wiedinmyer, S. Baughcum, S. Kloster,: Description and evaluation of the Model for Ozone and Related chemical Tracers, version 4 (MOZART-4). Geosci. Model Devel., 3, 43-67, 2010.
Pfister, G., C. Wiedinmyer, L.K. Emmons (2008), Impacts of the fall 2007 California wildfires on surface ozone: Integrating local observations with global model simulations, Geophys. Res. Letters, VOL. 35, L19814, doi:10.1029/2008GL034747. (Highlight Paper)
Pfister, G., A.M. Thompson, L.K. Emmons, P.G. Hess, J.-F. Lamarque, Y.E. Yorks (2008), Analysis of the Summer 2004 Ozone Budget over the U.S. using IONS observations and MOZART-4 simulations, J. Geophys. Res., VOL. 113, D23306, doi:10.1029/2008JD010190.
Pfister, G., L.K. Emmons, P.G. Hess, J.-F. Lamarque, S. Walters, A. Guenther, P.I. Palmer, P. Lawrence (2008), Contribution of isoprene to chemical budgets: A model tracer study with the NCAR CTM MOZART-4, to be published in J. Geophys. Res.
Pfister, G., P. G. Hess, L.K. Emmons, P. J. Rasch, F. V. Vitt (2008), Impact of the summer 2004 Alaska fires on top of the atmosphere clear-sky radiation fluxes, J. Geophys. Res., 113, D02204, doi:10.1029/2007JD008797.
Arellano, A.F.,Jr., K. Raeder, J.L. Anderson, P.G. Hess, L.K. Emmons, D.P. Edwards, G.G. Pfister, T.L. Campos, G.W. Sachse (2007), Evaluating model performance of an ensemble-based chemical data assimilation system during INTEX-B field mission, Atmos. Chem. Phys., 7, 5695-5710.
Bousserez, N., Attie, J.L., Peuch, V.H., Michou, M., Pfister, G., Edwards, D., Emmons, L., Mari, C., Barret, B., Arnold, S.R., Heckel, A., Richter, A., Schlager, H., Lewis, A., Avery, M.; Sachse, G., Browell, E.V., Hair, J.W. (2007), Evaluation of the MOCAGE chemistry transport model during the ICARTT/ITOP experiment, J. Geophys. Res., Vol. 112, No. D10, D10S42, doi:10.1029/2006JD007595.
Emmons, L.K., G.G. Pfister, D.P. Edwards, J.C. Gille, G. Sachse, D. Blake, S. Wofsy, C. Gerbig, D. Matross, P. Nedelec (2006), MOPITT Validation exercises during Summer 2004 fields campaigns over North America, J. Geophys. Res., 112, D12S02, doi:10.1029/2006JD007833.
Tang, Y., G. Carmichael, N. Thongboonchoo, T. Chai, L. Horowitz, R.B. Pierce, J. Al-Saadi, G. Pfister, J. Vukovich, M. Avery, G. Sachse, T. Ryerson, J. Holloway, E. Atlas, F. Flocke, R. Weber, L.G. Huey, J. Dibb, D. Streets, W. Brune (2006), The Influence of Lateral and Top Boundary Conditions on Regional Air Quality Prediction: a Multi-Scale Study Coupling Regional and Global Chemical Transport Models, J. Geophys. Res., 112, D10S18, doi:10.1029/2006JD007515.
Pfister, G.G., L.K. Emmons, P.G. Hess, R.E. Honrath, J.F. Lamarque, M. ValMartin, R.C. Owen, M. Avery, E. Browell, J. Holloway, P. Nedelec, R. Purvis, T. Ryerson, G. Sachse, H. Schlager (2006), Ozone Production from the 2004 North American Boreal Fires, J. Geophys. Res., 111, D24S07, doi:10.1029/2006JD007695.
J.T. Randerson, H. Liu, M.G. Flanner, S.D. Chambers, Y. Yin, P.G. Hess, G. Pfister, M.C. Mack, K.K. Treseder, L.R. Welp, F.S. Chapin, J.W. Harden, M.L. Goulden, E. Lyons, J.C. Neff, E.A.G. Schuur, C.S. Zender (2006), The impact of boreal forest fire on global warming, Science, 14: 1045, doi: 10.1126/science.314.5802.1045.
Last Update: 8/27/14