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Institute of Climate and Energy Systems – Troposphere (ICE-3) (Forschungszentrum Jülich)
Characterization and application of a chemical modulation reactor during the JULIAC campaign
Version 1.1
Cho, Changmin; Hofzumahaus, Andreas; Fuchs, Hendrik; Dorn, Hans-Peter; Glowania, Marvin; Holland, Frank; Rohrer, Franz; Vardhan, Vaishali; Kiendler-Scharr, Astrid; Wahner, Andreas; Novelli, Anna, 2021, "Characterization and application of a chemical modulation reactor during the JULIAC campaign", https://doi.org/10.26165/JUELICH-DATA/GK7PJQ, Jülich DATA, V1
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Description
Laser-induced fluorescence (LIF) is a widely used technique for the measurement of ambient hydroxyl (OH) radicals and was used for the majority of field campaigns and chamber experiments. Recently, most LIF instruments in use for atmospheric measurements of OH radicals introduced chemical modulation to separate the ambient OH radical concentration from possible interferences by chemically removing ambient OH radicals before they enter the detection cell. This data contains the application and characterization of a chemical modulation reactor (CMR) applied to the Forschungszentrum Jülich LIF (FZJ-LIF) instrument in use at the SAPHIR (Simulation of Atmospheric PHotochemistry In a Large Reaction Chamber) atmospheric simulation chamber. Besides dedicated experiments in synthetic air, the new technique was extensively tested during the yearround Jülich Atmospheric Chemistry Project (JULIAC) campaign, in which ambient air was continuously flowed into the SAPHIR chamber. The four files include measurements during winter, spring, summer and fall 2019. (2021-02-17)
Subject Earth and Environmental Sciences
Keyword Instrument characterization
Related Publication Cho, C., Hofzumahaus, A., Fuchs, H., Dorn, H.-P., Glowania, M., Holland, F., Rohrer, F., Vardhan, V., Kiendler-Scharr, A., Wahner, A., and Novelli, A., Characterization of a chemical modulation reactor (CMR) for the measurement of atmospheric concentrations of hydroxyl radicals with a laser-induced fluorescence instrument, Atmos. Meas. Tech., 14, 1–27, 2021 doi: 10.5194/amt-14-1851-2021
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juliac1.ALL_DATA_CMR.edf
Unknown - 4.6 MB - Feb 23, 2021 - 1 Download
SHA-256: 31ec79a692e9b9db1e173a21e4bed963e1b45a3535474a1f2bfc43a1f8cf8a57
Time synchronized time series of concentrations used for the characterization of the CMR system from the winter period of the JULIAC campaign.
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juliac2.ALL_DATA_CMR.edf
Unknown - 4.9 MB - Feb 23, 2021 - 1 Download
SHA-256: 9f6805dd6dd94588d60d84c7e916ed0c6cd31c40a5be4ebcede9a782dc6043c2
Time synchronized time series of concentrations used for the characterization of the CMR system from the spring period of the JULIAC campaign.
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juliac3.ALL_DATA_CMR.edf
Unknown - 6.3 MB - Feb 23, 2021 - 0 Downloads
SHA-256: de2283fc987b42dca8af85b2111b12b7eb679e3999ac2a6f0dae7eb48eefdc6d
Time synchronized time series of concentrations used for the characterization of the CMR system from the summer period of the JULIAC campaign.
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juliac4.ALL_DATA_CMR.edf
Unknown - 5.5 MB - Feb 23, 2021 - 48 Downloads
SHA-256: ce040943b1fbbb7e4dcef165f3ae9addc59ba981fb33a07d70e73abca22deb19
Time synchronized time series of concentrations used for the characterization of the CMR system from the fall period of the JULIAC campaign.
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