The NSF sponsored Front Range Air Pollution and Photochemistry Éxperiment (FRAPPÉ) and the NASA sponsored Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) mission took place in summer 2014 and included aircraft from both agencies (NSF C-130, NASA P-3). Our group operated instruments at the BAO tower site in collaboration with groups from Colorado State University and the University of Toronto. Vertical profiling from a movable carriage on the 300 m tall tower produced vertical profiles of ozone, reactive nitrogen species, gas phase acids and oxygenated VOCs, ammonia, methane, carbon dioxide, aerosol size distributions and extinction. The overall goal of this effort is to understand sources, transport and chemical transformations of air pollutants, particularly those that lead to summertime, ground level ozone in Colorado.
Selected Papers
McDuffie, E.E., P.M. Edwards, J.B. Gilman, B.M. Lerner, W.P. Dubé, M. Trainer, D.E. Wolfe, W.M. Angevine, J. deGouw, E.J. Williams, A.G. Tevlin, J.G. Murphy, E.V. Fischer, S. McKeen, T.B. Ryerson, J. Peischl, J.S. Holloway, K. Aikin, A.O. Langford, C.J. Senff, R.J. Alvarez, S.R. Hall, K. Ullmann, K.O. Lantz, and S.S. Brown, Influence of oil and gas emissions on summertime ozone in the Colorado Northern Front Range. Journal of Geophysical Research: Atmospheres, 2016. 121(14): p. 8712-8729. http://dx.doi.org/10.1002/2016JD025265
Baier, B.C., W.H. Brune, D.O. Miller, D. Blake, R. Long, A. Wisthaler, C. Cantrell, A. Fried, B. Heikes, S. Brown, E. McDuffie, F. Flocke, E. Apel, L. Kaser, and A. Weinheimer, Higher measured than modeled ozone production at increased NOx levels in the Colorado Front Range. Atmos. Chem. Phys., 2017. 17(18): p. 11273-11292. https://www.atmos-chem-phys.net/17/11273/2017/