Articles | Volume 13, issue 12
Research article
30 Nov 2020
Research article |  | 30 Nov 2020

Effects of clouds on the UV Absorbing Aerosol Index from TROPOMI

Maurits L. Kooreman, Piet Stammes, Victor Trees, Maarten Sneep, L. Gijsbert Tilstra, Martin de Graaf, Deborah C. Stein Zweers, Ping Wang, Olaf N. E. Tuinder, and J. Pepijn Veefkind


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Maurits Kooreman on behalf of the Authors (07 Aug 2020)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (30 Aug 2020) by Jhoon Kim
RR by Anonymous Referee #2 (12 Sep 2020)
RR by Anonymous Referee #1 (18 Sep 2020)
ED: Publish as is (07 Oct 2020) by Jhoon Kim
AR by Maurits Kooreman on behalf of the Authors (11 Oct 2020)
Short summary
We investigated the influence of clouds on the Absorbing Aerosol Index (AAI), an indicator of the presence of small particles in the atmosphere. Clouds produce artifacts in AAI calculations on the individual measurement (7 km) scale, which was not seen with previous instruments, as well as on large (1000+ km) scales. To reduce these artefacts, we used three different AAI calculation techniques of varying complexity. We find that the AAI artifacts are reduced when using more complex techniques.