Calibration of an airborne HOx instrument using the All Pressure Altitude-based Calibrator for HOx Experimentation (APACHE)

Marno, Daniel; Ernest, Cheryl; Hens, Korbinian; Javed, Umar; Klimach, Thomas; Martinez, Monica; Rudolf, Markus; Lelieveld, Jos; Harder, Hartwig

doi:https://doi.org/10.5194/amt-13-2711-2020

Articles | Volume 13, issue 5

https://doi.org/10.5194/amt-13-2711-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-13-2711-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 5

Research article

|

27 May 2020

Research article |

| 27 May 2020

Calibration of an airborne HO_x instrument using the All Pressure Altitude-based Calibrator for HO_x Experimentation (APACHE)

Daniel Marno, Cheryl Ernest, Korbinian Hens, Umar Javed, Thomas Klimach, Monica Martinez, Markus Rudolf, Jos Lelieveld, and Hartwig Harder

Supplement

https://doi.org/10.5194/amt-13-2711-2020-supplement

Data sets

HORUS pressure dependent calibrations using the APACHE calibrator D. Marno and H. Harder https://doi.org/10.5281/zenodo.3821976

Short summary

In this study, a calibration device for OH and HO₂ instruments is characterized at pressures of 275 to 1000 mbar, allowing instrument pressure sensitivity to be quantified to an accuracy of 22 % (1σ). Computational fluid dynamic simulations supporting the understanding of interactions between generated HO_x and the instrument inlet led to enhanced determination of factors affecting instrument sensitivity.