ACCLIP Deployment Announcement

Aug. 1, 2022, 4:03 p.m.

Project: ACCLIP

After a two-year postponement, the Asian Summer Monsoon Chemical & Climate Impact Project (ACCLIP) has moved into its field phase. ACCLIP is a NASA and NCAR jointly funded two-month project based in the Republic of Korea. The ACCLIP campaign team is currently organized into four sub-groups: two aircraft instrument teams (GV and WB-57), Ops Center group, and ground-based measurements group. The WB-57 science flights will occur between July 29,2022 to September 2, 2022, and GV science flights from July 31, 2022, to August 31, 2022. This deployment will focus on investigating the impacts of Asian gas and aerosol emissions on global chemistry and climate via the linkages of Asian Summer Monsoon (ASM) convection and associated large-scale dynamics. The science objectives can be found on the NASA ACCLIP Website.

The ASM is the largest meteorological pattern in the Northern Hemisphere summer season. Persistent convection and the large anticyclone flow pattern in the upper troposphere and lower stratosphere (UTLS) associated with ASM leads to a significant enhancement in the UTLS of trace species from pollution and biomass burning origins. An accurate representation of the ASM transport, chemical and microphysical processes in chemistry-climate models is much needed for characterizing ASM chemistry-climate interactions and for predicting its future impact in a changing climate.

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