Articles | Volume 23, issue 2
https://doi.org/10.5194/acp-23-1641-2023
https://doi.org/10.5194/acp-23-1641-2023
Research article
 | 
27 Jan 2023
Research article |  | 27 Jan 2023

How aerosol size matters in aerosol optical depth (AOD) assimilation and the optimization using the Ångström exponent

Jianbing Jin, Bas Henzing, and Arjo Segers

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Cited articles

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Short summary
Aerosol models and satellite retrieval algorithms rely on different aerosol size assumptions. In practice, differences between simulations and observations do not always reflect the difference in aerosol amount. To avoid inconsistencies, we designed a hybrid assimilation approach. Different from a standard aerosol optical depth (AOD) assimilation that directly assimilates AODs, the hybrid one estimates aerosol size parameters by assimilating Ängström observations before assimilating the AODs.
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