Progress in the Asian summer monsoon Chemical and Climate Impact Project (ACCLIP)
Abstract
This presentation reports the findings of a multi-model pre-study in preparation for an airborne field campaign to investigate the upper troposphere and lower stratosphere (UTLS) composition under the influence of the Asian summer monsoon (ASM). The airborne study is planned for the western Pacific atmosphere during July-August 2020 using a base in Okinawa, Japan. The pre-study used Lagrangian trajectory analyses and multiple chemistry-transport models to investigate transport patterns and gas and aerosol chemical composition in the campaign region UTLS during the ASM period. Also a WRF model with artificial surface tracers helped identify the locations and evolution of rapid convective uplifting from regional sources. Together, the multi-model results support the hypotheses of the ACCLIP campaign which identify the western Pacific as a significant pathway for reactive chemical pollutants and climate relevant emissions from the ASM to enter the global UTLS.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.A51K2788P
- 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