English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

. A global picture of atmospheric aerosol vertical distribution with a high temporal resolution is of key importance not only forclimate, cloud formation, and air quality research studies but also for correcting scattered radiation induced by aerosols inabsorbing trace gas retrievals from passive satellite sensors. Aerosol layer height (ALH) was retrieved from the OMI 477 nmO2−O2 band and its spatial pattern evaluated over selected cloud-free scenes. Such retrievals benefit from a synergy withMODIS data to provide complementary information on aerosols and cloudy pixels. We used a neural network approach previously trainedand developed. Comparison with CALIOP aerosol level 2 products over urban and industrial pollution in eastern China shows consistentspatial patterns with an uncertainty in the range of 462–648 m. In addition, we show the possibility to determine the heightof thick aerosol layers released by intensive biomass burning events in South America and Russia from OMI visiblemeasurements. A Saharan dust outbreak over sea is finally discussed. Complementary detailed analyses show that the assumed aerosolproperties in the forward modelling are the key factors affecting the accuracy of the results, together with potential cloudresiduals in the observation pixels. Furthermore, we demonstrate that the physical meaning of the retrieved ALH scalar corresponds tothe weighted average of the vertical aerosol extinction profile. These encouraging findings strongly suggest the potential of the OMIALH product, and in more general the use of the 477 nm O2−O2 band from present and future similar satellitesensors, for climate studies as well as for future aerosol correction in air quality trace gas retrievals.

Spatial distribution analysis of the OMI aerosol layer height: a pixel-by-pixel comparison to CALIOP observations