Intercomparison of airborne N2O measurements using tunable diode laser absorption spectroscopy and in-situ gas chromatography

Peter M. Hoor; Horst Fischer; Stephanie Wong; Andreas Engel; Thomas Wetter

doi:10.1117/12.366442

25 October 1999 Intercomparison of airborne N₂O measurements using tunable diode laser absorption spectroscopy and in-situ gas chromatography

Peter M. Hoor, Horst Fischer, Stephanie Wong, Andreas Engel, Thomas Wetter

Author Affiliations +

Proceedings Volume 3758, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Processing Monitoring II; (1999) https://doi.org/10.1117/12.366442
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

During the STREAM98 campaign conducted from Timmins (Canada) in July 1998, simultaneous airborne measurements of chemical tracers were performed using a Cessna Citation II twinjet as carrier platform. We present an intercomparison of N₂O measurements using an in-situ GC (University of Frankfurt/Main, Germany) and a tunable diode laser instrument (TRISTAR) operated by the Max Planck Institute for Chemistry, Mainz, Germany. The duty cycle of the GC is one second measurement per 120 s interval, whereas the sampling rate of the TDLAS is 1 Hz. Both instruments are in situ calibrated using working gas standards traced against primary standards provided by NOAA. The maximum deviation between the two independent measurements of N₂O is less than two years, which is of the order of the uncertainties of both instruments.

Citation Download Citation

Peter M. Hoor, Horst Fischer, Stephanie Wong, Andreas Engel, and Thomas Wetter "Intercomparison of airborne N₂O measurements using tunable diode laser absorption spectroscopy and in-situ gas chromatography", Proc. SPIE 3758, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Processing Monitoring II, (25 October 1999); https://doi.org/10.1117/12.366442

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