ACDL/DQ-1 calibration algorithms – Part 1: Nighttime 532&thinsp;nm polarization and the high-spectral-resolution channel

Meng, Fanqian; Tang, Junwu; Dai, Guangyao; Long, Wenrui; Sun, Kangwen; Zhang, Zhiyu; Song, Xiaoquan; Liu, Jiqiao; Chen, Weibiao; Wu, Songhua

doi:https://doi.org/10.5194/amt-18-2021-2025

Articles | Volume 18, issue 9

https://doi.org/10.5194/amt-18-2021-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-18-2021-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 9

Research article

|

08 May 2025

Research article |

| 08 May 2025

ACDL/DQ-1 calibration algorithms – Part 1: Nighttime 532 nm polarization and the high-spectral-resolution channel

Fanqian Meng, Junwu Tang, Guangyao Dai, Wenrui Long, Kangwen Sun, Zhiyu Zhang, Xiaoquan Song, Jiqiao Liu, Weibiao Chen, and Songhua Wu

Data sets

ERA5 hourly data on pressure levels from 1940 to present Hans Hersbach et al. https://doi.org/10.24381/cds.bd0915c6

SAGE III/ISS L2 Solar Event Species Profiles (Native) V05 SAGE III Team https://doi.org/10.5067/ISS/SAGEIII/SOLAR_BINARY_L2-V5.3

Short summary

This paper presents a comprehensive calibration procedure for the first spaceborne high-spectral-resolution lidar with an iodine vapor absorption filter Aerosol and Carbon Detection Lidar (ACDL) on board DQ-1 by utilizing nighttime 532 nm multi-channel data. We analyzed the error sources of the multi-channel calibration coefficients and assessed the results. The results indicate that the uncertainty of the clear-air scattering ratio was within the anticipated range of 7.9 %.