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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 2
Atmos. Meas. Tech., 6, 487-494, 2013
https://doi.org/10.5194/amt-6-487-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Meas. Tech., 6, 487-494, 2013
https://doi.org/10.5194/amt-6-487-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 27 Feb 2013

Research article | 27 Feb 2013

Fast response cavity enhanced ozone monitor

A. L. Gomez and E. P. Rosen A. L. Gomez and E. P. Rosen
  • Southwest Sciences, Inc. 1570 Pacheco St. Ste. E-11, Santa Fe, NM, USA

Abstract. Ozone is an important atmospheric gas due to its role in air quality and radiative forcing. A new method for sensitive, rapid monitoring of ambient ozone has been developed using a compact platform and relatively inexpensive components. Based on incoherent broadband cavity enhanced absorption spectroscopy (IBB-CEAS), the device utilizes an optical cavity of just 14.5 cm and 99.3% reflective mirrors. Performance of the instrument has been validated against direct absorption measurements in a single-pass measurement cell. Currently, the IBB-CEAS ozone instrument can achieve ∼1 ppb sensitivities at 0.1 s integration time with a dynamic range over four orders of magnitude, accessing relevant ozone concentrations in both the stratosphere and troposphere. This new device offers improved sensitivity and time response for mapping ozone aboard airborne platforms.

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