Allen, H. M., Crounse, J. D., Kim, M. J., Teng, A. P., & Wennberg, P. O. (2019). ATom: L2 In Situ Data from Caltech Chemical Ionization Mass Spectrometer (CIT-CIMS) (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1713 Date Accessed: 2026-09-04

@article{allen_crounse_kim_teng_wennberg_2019, title={ATom: L2 In Situ Data from Caltech Chemical Ionization Mass Spectrometer (CIT-CIMS)}, url={https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1713}, DOI={10.3334/ORNLDAAC/1713}, abstractNote={This dataset provides the concentrations of gas phase organic and inorganic analytes measured by the California Institute of Technology (CIT) Chemical Ionization Mass Spectrometer (CIMS), or CIT-CIMS. The CIT-CIMS employs CF3O-ion chemistry with two independent mass spectrometers (compact time-of-flight and triple quadrupole) to enable sensitive and specific measurements of atmospheric trace gases. The measurements include hydrogen cyanide (HCN), nitric acid (HNO3), methyl hydrogen peroxide (CH3OOH), peroxyacetic acid (C2O3H4), peroxynitric acid (HO2NO2), and sulfur dioxide (SO2), in parts-per-trillion-by-volume (pptv).}, publisher={ORNL Distributed Active Archive Center}, author={Allen, H.M. and Crounse, J.D. and Kim, M.J. and Teng, A.P. and Wennberg, P.O.}, year={2019}, language={en}, }

Allen, H. M., Crounse, J. D., Kim, M. J., Teng, A. P., & Wennberg, P. O. (2019). ATom: L2 In Situ Data from Caltech Chemical Ionization Mass Spectrometer (CIT-CIMS) (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1713 Date Accessed: 2026-09-04

Allen, H.M., et al. “ATom: L2 In Situ Data from Caltech Chemical Ionization Mass Spectrometer (CIT-CIMS).” With ORNL DAAC, Version 1, ORNL Distributed Active Archive Center, 30 Sept. 2019, https://doi.org/10.3334/ORNLDAAC/1713. Date Accessed: 2026-09-04