Articles | Volume 18, issue 4
https://doi.org/10.5194/amt-18-865-2025
https://doi.org/10.5194/amt-18-865-2025
Research article
 | 
19 Feb 2025
Research article |  | 19 Feb 2025

Study of NO2 and HCHO vertical profile measurement based on fast synchronous multi-axis differential optical absorption spectroscopy (FS MAX-DOAS)

Jiangman Xu, Ang Li, Zhaokun Hu, Hairong Zhang, and Min Qin

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Revised manuscript accepted for AMT
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Cited articles

Biswas, M. S., Mali, P., Lerot, C., De Smedt, I., and Mahajan, A. S.: Study of atmospheric glyoxal using multiple axis differential optical spectroscopy (MAX-DOAS) in India, Atmos. Environ., 314, 120109, https://doi.org/10.1016/j.atmosenv.2023.120109, 2023. 
Chan, K. L., Hartl, A., Lam, Y. F., Xie, P. H., Liu, W. Q., Cheung, H. M., Lampel, J., Pöhler, D., Li, A., Xu, J., Zhou, H. J., Ning, Z., and Wenig, M. O.: Observations of tropospheric NO2 using ground based MAX-DOAS and OMI measurements during the Shanghai World Expo 2010, Atmos. Environ., 119, 45–58, https://doi.org/10.1016/j.atmosenv.2015.08.041, 2015. 
Chan, K. L., Wiegner, M., Wenig, M., and Pöhler, D.: Observations of tropospheric aerosols and NO2 in Hong Kong over 5 years using ground based MAX-DOAS, Sci. Total Environ., 619–620, 1545–1556, https://doi.org/10.1016/j.scitotenv.2017.10.153, 2018. 
Chan, K. L., Wang, Z., Ding, A., Heue, K.-P., Shen, Y., Wang, J., Zhang, F., Shi, Y., Hao, N., and Wenig, M.: MAX-DOAS measurements of tropospheric NO2 and HCHO in Nanjing and a comparison to ozone monitoring instrument observations, Atmos. Chem. Phys., 19, 10051–10071, https://doi.org/10.5194/acp-19-10051-2019, 2019. 
Cota, S. A., Florio, C. J., Duvall, D. J., and Leon, M. A.: The use of the general image quality equation in the design and evaluation of imaging systems, SPIE Optical Engineering + Applications, San Diego, CA, 2–6 August 2009, SPIE, 27, 74580H, https://doi.org/10.1117/12.829024, 2009. 
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Short summary
This article introduces an experimental system for rapidly acquiring trace gas profiles using multi-channel spectroscopy, significantly enhancing the time resolution of spectral collection. The fast synchronous multi-axis differential optical absorption spectroscopy (FS MAX-DOAS) successfully obtains gas profiles. This work can also be integrated with mobile platforms for navigational observation research, which is crucial for making mobile MAX-DOAS profile measurements.
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