Verification of the Atmospheric Infrared Sounder (AIRS) and the Microwave Limb Sounder (MLS) ozone algorithms based on retrieved daytime and night-time ozone

Wang, Wannan; Cheng, Tianhai; van der A, Ronald J.; de Laat, Jos; Williams, Jason E.

doi:https://doi.org/10.5194/amt-14-1673-2021

Articles | Volume 14, issue 2

https://doi.org/10.5194/amt-14-1673-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-14-1673-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 2

Research article

|

01 Mar 2021

Research article |

| 01 Mar 2021

Verification of the Atmospheric Infrared Sounder (AIRS) and the Microwave Limb Sounder (MLS) ozone algorithms based on retrieved daytime and night-time ozone

Wannan Wang, Tianhai Cheng, Ronald J. van der A, Jos de Laat, and Jason E. Williams

Supplement

https://doi.org/10.5194/amt-14-1673-2021-supplement

Data sets

AIRS/Aqua L3 Daily Standard Physical Retrieval (AIRS-only) 1 degree x 1 degree V006 AIRS Science Team/Joao Teixeira https://doi.org/10.5067/Aqua/AIRS/DATA303

AIRS/Aqua L2 Standard Physical Retrieval (AIRS-only) V006 AIRS Science Team/Joao Teixeira https://doi.org/10.5067/Aqua/AIRS/DATA202

MLS/Aura Level 2 Ozone (O3) Mixing Ratio V004 M. Schwartz, L. Froidevaux, N. Livesey, and W. Read https://doi.org/10.5067/Aura/MLS/DATA2017

Short summary

This paper is an evaluation of the AIRS and MLS ozone (O₃) algorithms via comparison with daytime and night-time O₃ datasets. Results show that further refinements of the AIRS O₃ algorithm are required for better surface emissivity retrievals and that cloud cover is another problem that needs to be solved. An inconsistency is found in the AscDescMode flag of the MLS v4.20 standard O₃ product for 90–60° S and 60–90° N, resulting in inconsistent O₃ profiles in these regions before May 2015.