Articles | Volume 21, issue 4
Atmos. Chem. Phys., 21, 2745–2764, 2021
https://doi.org/10.5194/acp-21-2745-2021

Special issue: StratoClim stratospheric and upper tropospheric processes...

Atmos. Chem. Phys., 21, 2745–2764, 2021
https://doi.org/10.5194/acp-21-2745-2021

Research article 24 Feb 2021

Research article | 24 Feb 2021

Global modeling studies of composition and decadal trends of the Asian Tropopause Aerosol Layer

Adriana Bossolasco et al.

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Latest update: 29 Nov 2021
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Short summary
Using the Community Earth System Model, we simulate the surface aerosols lifted to the Asian tropopause (the ATAL layer), its composition and trend, covering a long-term period (2000–2015). We identify a double-peak aerosol vertical profile that we attribute to dry and convective cloud-borne aerosols. We find that natural aerosol (mineral dust) is the dominant aerosol type and has no long-term trend. ATAL's anthropogenic fraction, by contrast, shows a marked positive trend.
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