Articles | Volume 12, issue 2
Atmos. Meas. Tech., 12, 1277–1293, 2019
https://doi.org/10.5194/amt-12-1277-2019
Atmos. Meas. Tech., 12, 1277–1293, 2019
https://doi.org/10.5194/amt-12-1277-2019

Research article 27 Feb 2019

Research article | 27 Feb 2019

A broadband cavity-enhanced spectrometer for atmospheric trace gas measurements and Rayleigh scattering cross sections in the cyan region (470–540 nm)

Nick Jordan et al.

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AR by Hans Osthoff on behalf of the Authors (30 Jan 2019)  Author's response    Manuscript
ED: Publish as is (01 Feb 2019) by Mingjin Tang
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Short summary
A new spectrometer to measure abundances of the atmospheric trace gases nitrogen dioxide and iodine is described. The spectrometer uses a light-emitting diode between 470 and 540 nm and two highly reflective mirrors to yield an effective absorption path of 6.3 km. We remeasured scattering cross sections of common atmospheric gases in the cyan region and present sample NO2 measurements that agreed with those made with a laser-based instrument.