Tropospheric Chemistry: Instruments

instruments installed in van

NH3 Picarro instrument (right) installed in the CSD mobile laboratory

Ammonia (NH3) Ring-down

Principle of the Measurement

Wavelength-scanned cavity ring down

Species Measured



Picarro Inc.

Field Projects

  • DISCOVER-AQ 2013
  • Ag Emissions Studies 2014-2015


  • NOAA WP-3D aircraft
  • CSD Mobile Lab


Key Publications

Eilerman, S.J., J. Peischl, J.A. Neuman, T.B. Ryerson, K.C. Aikin, M.W. Holloway, M.A. Zondlo, L.M. Golston, D. Pan, C. Floerchinger, and S. Herndon, Characterization of ammonia, methane, and nitrous oxide emissions from concentrated animal feeding operations in northeastern Colorado, Environmental Science & Technology, doi:10.1021/acs.est.6b02851, 2016.

Sun, K., K. Cady-Pereira, D.J. Miller, L. Tao, M.A. Zondlo, J. Nowak, A. Neuman, T. Mikoviny, M. Müller, A. Wisthaler, A.J. Scarino, and C.A. Hostetler, Validation of TES ammonia observations at the single pixel scale in the San Joaquin Valley during DISCOVER-AQ, Journal of Geophysical Research, doi:10.1002/2014JD022846, 2015.