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- New aerosol species added (anthropogenic and biogenic secondary organic aerosol)
- New tropospheric chemical species added (HCN, CH3CNCH3CN, Glyoxal and Glycoladehyde)
- Comprehensive stratospheric chemistry added (including 63 species)
- Stratospheric ozone (O3O3): improvement in lower stratosphere with slight degradation in tropical upper stratosphere
- Stratospheric nitrogen dioxide (NO2NO2): significant improvement due to more comprehensive chemistry
- Tropospheric ozone (O3O3): generally neutral with positive impact in south-east Asia
- Tropospheric nitrogen dioxide (NO2NO2): generally small improvement, which is more pronounced for south-east Asia
- Tropospheric sulfur dioxide (SO2SO2): generally small improvement, which is more pronounced for south-east Asia
- Tropospheric carbon monoxide (CO): generally small improvement, which is more pronounced for south-east Asia
- Surface NO2 and SO2: decrease in surface concentrations leading mainly to reduced biases in Europe, North-America and Europe , especially for background stations.
- UV: no major change
- Aerosol Optical Depth (AOD): no major change
- Dust aerosol: significant change in size distribution resulting in more larger particles redistribution of aerosol particles towards larger sizes and therefore a significant increase in global dust mass burden
- PM2.5: reduced over North-America and China but not in Europe. This means a now negative bias over North America and China, which is expected for a global model that does not resolve detailed polluted areas.
Technical details of the new cycle
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