EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Asian summer monsoon Chemical and Climate Impact Project (ACCLIP): Highlights of multi-model pre-mission study

Doug Kinnison1, Qing Liang2, Laura Pan1, Paul Newman2, Elliot Atlas3, Brian Toon4, William Randel1, Jim Bresch1, Mian Chin2, Simone Tilmes1, Alma Hodzic1, Shawn Honomichl1, Leslie Lait2, Ren Smith1, Parker Case4, Alfonso Saiz-Lopez5, Luke Jones6, Jerome Barre6, and Johannes Flemming6
Doug Kinnison et al.
  • 1NCAR, Atmospheric Chemistry Observations & Modeling, Boulder, United States of America (
  • 2NASA Goddard Space Flight Center, Greenbelt, MD, United States of America
  • 3Rosentiel School of Marine & Atmospheric Science, University of Miami, Miami, FL, United States of America
  • 4Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States of America
  • 5Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Madrid, Spain
  • 6European Center for Medium-Range Weather Forecasts, Reading, United Kingdom

This presentation reports the findings of a multi-model pre-mission 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 NSF/NASA supported airborne study is planned for the western Pacific atmosphere during July-August 2020 using a base in Okinawa, Japan. The pre-mission study uses three chemistry-transport models (i.e., NASA GSFC GEOS5, NCAR WACCM, and ECMWF CAMS) to investigate transport patterns and gas and aerosol chemical composition in the campaign region UTLS during the 2019 ASM period. In addition, artificial surface tracers from the WRF model helped identify the locations and evolution of rapid convective uplifting from regional sources. The impact of one typhoon occurrence during this 2019 ASM period will be discussed. Together, the multi-model results support the hypotheses of the ACCLIP campaign which identifies the western Pacific as a significant pathway for reactive chemical pollutants and climate relevant emissions from the ASM to enter the global UTLS.

How to cite: Kinnison, D., Liang, Q., Pan, L., Newman, P., Atlas, E., Toon, B., Randel, W., Bresch, J., Chin, M., Tilmes, S., Hodzic, A., Honomichl, S., Lait, L., Smith, R., Case, P., Saiz-Lopez, A., Jones, L., Barre, J., and Flemming, J.: Asian summer monsoon Chemical and Climate Impact Project (ACCLIP): Highlights of multi-model pre-mission study, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-2778,, 2020

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