Aerosol composition in the UTLS and its connections to the anthropogenic and natural emissions and the monsoon convective system
Abstract
We present our study of decadal variations of UTLS aerosol composition in terms of their sources and convective transport mechanisms associated with the monsoon systems. We use the NASA global model GEOS that incorporates emissions from anthropogenic, biomass burning, volcanic, and other natural sources to simulate the aerosols and track their origins. The model results are compared to satellite observations from CALIOP, OSIRIS, SCIAMACHY, and OMPS-LP as well as aircraft measurements. We examine the relationship between the Asian monsoon strength and convective transport of pollutants to the UTLS from major source regions and attribute the relative importance of anthropogenic and volcanic sources to the UTLS aerosol compositions and amounts in the past decade.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.A53C..06C
- Keywords:
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- 0305 Aerosols and particles;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0322 Constituent sources and sinks;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0340 Middle atmosphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0368 Troposphere: constituent transport and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE