Tropospheric Chemistry: Instruments

NOyO3 instrument in lab

NOyO3 instrument set up for tests in the laboratory

Nitrogen Oxides and Ozone (NOyO3)

Principle of the Measurement

  • NO – ozone-induced chemiluminescence
  • NO2 – UV photolysis to NO; ozone-induced chemiluminescence
  • NOy – catalytic conversion to NO; ozone-induced chemiluminescence
  • O3 – nitric oxide-induced chemiluminescence

Species Measured

Nitrogen oxides (NOy), ozone (O3)

Time Response

1 Hz

Field Projects

  • SOS 1995
  • STERAO 1996
  • NARE 1996
  • SOS 1999
  • TexAQS 2000
  • ITCT 2002
  • ICARTT 2004
  • TexAQS 2006
  • ARCPAC 2008
  • CalNex 2010
  • SENEX 2013
  • SONGNEX 2015
  • ATom 2016-2018


Chelsea Thompson, Jeff Peischl, Tom Ryerson

Key Publications

Ryerson, T.B., R. Camilli, J.D. Kessler, E.B. Kujawinski, C.M. Reddy, D.L. Valentine, E.L. Atlas, D.R. Blake, J.A. de Gouw, S. Meinardi, D.D. Parrish, J. Peischl, J.S. Seewald, and C. Warneke, Chemical data quantify Deepwater Horizon hydrocarbon flow rate and environmental distribution, Proceedings of the National Academy of Science, doi:10.1073/pnas.1110564109, 2011.

Ryerson, T.B., K.C. Aikin, W.M. Angevine, E.L. Atlas, D.R. Blake, C.A. Brock, F.C. Fehsenfeld, R.-S. Gao, J.A. de Gouw, D.W. Fahey, J.S. Holloway, D.A. Lack, R.A. Lueb, S. Meinardi, A.M. Middlebrook, D.M. Murphy, J.A. Neuman, J.B. Nowak, D.D. Parrish, J. Peischl, A.E. Perring, I.B. Pollack, A.R. Ravishankara, J.M. Roberts, J.P. Schwarz, J.R. Spackman, H. Stark, C. Warneke, and L.A. Watts, Atmospheric emissions from the Deepwater Horizon spill constrain air-water partitioning, hydrocarbon fate, and leak rate, Geophysical Research Letters, doi:10.1029/2011GL046726, 2011.

Pollack, I. B., B. M. Lerner, T. B. Ryerson, Evaluation of ultraviolet light-emitting diodes for detection of atmospheric NO2 by photolysis - chemiluminescence, Journal of Atmospheric Chemistry, doi:10.1007/s10874-011-9184-3, 2011.

Peischl, J., T.B. Ryerson, J.S. Holloway, D.D. Parrish, M. Trainer, G.J. Frost, K.C. Aikin, S.S. Brown, W.P. Dubé, H. Stark, and F.C. Fehsenfeld, A top-down analysis of emissions from selected Texas power plants during TexAQS 2000 and 2006, Journal of Geophysical Research, doi:10.1029/2009JD013527, 2010.

Ryerson, T. B., M. Trainer, J. S. Holloway, D. D. Parrish, L. G. Huey, D. T. Sueper, G. J. Frost, S. G. Donnelly, S. Schauffler, E. L. Atlas, W. C. Kuster, P. D. Goldan, G. Hübler, J. F. Meagher, F. C. Fehsenfeld, Observations of ozone formation in power plant plumes and implications for ozone control strategies, Science, doi:10.1126/science.1058113, 2001.

Ryerson, T. B., E. J. Williams, and F.C. Fehsenfeld, An efficient photolysis system for fast-response NO2 measurements, Journal of Geophysical Research-Atmospheres, doi:10.1029/2000JD900389, 2000.

Ryerson, T. B., L. G. Huey, K. Knapp, J. A. Neuman, D. D. Parrish, D. T. Sueper, F. C. Fehsenfeld, Design and initial characterization of an inlet for gas-phase NOy measurements from aircraft, Journal of Geophysical Research-Atmospheres, doi:10.1029/1998JD100087, 1999.