Collocation mismatch uncertainties in satellite aerosol retrieval validation

Virtanen, Timo H.; Kolmonen, Pekka; Sogacheva, Larisa; Rodríguez, Edith; Saponaro, Giulia; de Leeuw, Gerrit

doi:https://doi.org/10.5194/amt-11-925-2018

Articles | Volume 11, issue 2

https://doi.org/10.5194/amt-11-925-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-11-925-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 2

Research article

|

16 Feb 2018

Research article |

| 16 Feb 2018

Collocation mismatch uncertainties in satellite aerosol retrieval validation

Timo H. Virtanen, Pekka Kolmonen, Larisa Sogacheva, Edith Rodríguez, Giulia Saponaro, and Gerrit de Leeuw

Supplement

https://doi.org/10.5194/amt-11-925-2018-supplement

Data sets

ADV aerosol product level 2, v2.30 FMI http://www.icare.univ-lille1.fr

Library of AOD spatial and temporal mismatch uncertainties FMI ftp://ftp-ae.oma.be/dist/GAIA-CLIM/D3_6/AOD/FMI/

Short summary

We study the collocation mismatch uncertainty related to validating coarse-resolution satellite-based aerosol data against point-like ground based measurements. We use the spatial variability in the satellite data to estimate the upper limit for the uncertainty and study the effect of sampling parameters in the validation. We find that accounting for the collocation mismatch uncertainty increases the fraction of consistent data in the validation.