The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview
Year: 2025
Authors: Pan LL., Atlas EL., Newman PA., Thornberry T., Jucks KW., Toon OB., Randel WJ., Liang Q., Kinnison DE., Ueyama R., Bresch JF., Honomichl SB., Smith WP., Hornbrook RS., Ziemba L., Fujiwara M., Apel EC., Barucci M., Bianchini G., Brown M., Bui TP., Campos T., Chin M., D’Amato F., Dean-Day J., Diskin G., Franchin A., Gurganus C., Iraci LT., Kim J., Koo J-., Lait LR., Lesko K., Podolske JR., Rollins A., Sakai T., Shiraishi K., Treadaway V., Viciani S., Waxman E.
Autors Affiliation: NSF Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, Boulder, CO 80305 USA; Univ Miami, Rosenstiel Sch Dept Atmospher Sci, Miami, FL USA; NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; NOAA, Chem Sci Lab, Boulder, CO USA; NASA, Earth Sci Div, NASA HQ, Washington, DC USA; Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO USA; Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO USA; NASA, Ames Res Ctr, Earth Sci Div, Moffett Field, CA USA; NSF Natl Ctr Atmospher Res, Mesoscale & Microscale Meteorol Lab, Boulder, CO USA; NASA, Langley Res Ctr, Hampton, VA USA; Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Japan; Natl Inst Opt CNR INO, Natl Res Council, Sesto Fiorentino, Italy; Bay Area Environm Res Inst, Moffett Field, CA USA; Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO USA; Kongju Natl Univ, Dept Atmospher Sci, Gongju, South Korea; Yonsei Univ, Dept Atmospher Sci, Seoul, South Korea; Japan Meteorol Agcy, Meteorol Res Inst, Observat & Data Assimilat Res Dept, Minat o, Japan; Fukuoka Univ, Fac Sci, Fukuoka, Japan.
Abstract: The Asian summer monsoon Chemical and Climate Impact Project is centered on a large airborne field campaign investigating the role the Asian Summer Monsoon (ASM) plays in changing the atmospheric composition in the upper troposphere and lower stratosphere. This campaign, conducted in Summer 2022 using two research aircraft, has obtained the most comprehensive data set for chemical composition, including hundreds of trace gas species as well as the physical and chemical properties of aerosols in the ASM convective outflow over East Asia and the Western Pacific. These data show that the ASM deep convection is creating a chemically distinct layer near the tropopause that has large anthropogenic influences. This overview provides a summary of the project, including the scientific objectives, dynamical, and meteorological conditions of the campaign season, key elements of the campaign operations, selected scientific highlights, and ongoing research.
Journal/Review: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
Volume: 130 (23) Pages from: e2025JD044417-1 to: e2025JD044417-3
More Information: The ACCLIP campaign was supported by the U.S. National Science Foundation (NSF), the National Aeronautics and Space Administration (NASA), and the National Oceanic and Atmospheric Administration (NOAA). Funding from NASA was provided by the Earth Science Division with funding for the research teams from the Upper Atmosphere Research Program. Funding for WB-57 flight time and measurements were provided in part by the NOAA Earth’s Radiation Budget (ERB) Program. This work was in part supported by the NSF National Center for Atmospheric Research, which is a major facility sponsored by the U.S. National Science Foundation under Cooperative Agreement No. 1852977. The GV data used in this work were collected using NSF’s Lower Atmosphere Observing Facilities, which are managed and operated by NSF NCAR’s Earth Observing Laboratory. ELA acknowledges support from NSF Grant 1853948 and NASA Grant 80NSSC22K1284 and contributions by the WAS team: V. Treadaway, S. Schauffler, K. Smith, R. Lueb, R. Hendershot, S. Donnelly, and L. Pope. WPS was supported under Grant NSF AGS-1853929 and NASA Grant 80NSSC24K0706. The JK was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (2023R1A2C1007401) MF acknowledge a grant for mission research on the sustainable humanosphere from the Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Japan for the fiscal years 2019-2022. The COMA team was supported by the NASA Earth Science Research and Analysis Program, the NASA Postdoctoral Program, and NASA Ames Internal Research and Development funding. EMW was supported in part by NOAA cooperative agreement NA22OAR4320151. COLD2 deployment was funded by the European Space Agency (ESA) contract QA4EO-ACCLIP. Authors thank the GV and WB-57 pilots and ground crew as well as the Osan Air Base staff for their support of the flight operations. We thank the undergraduate students from Fukuoka University who operated the lidar system at Fukuoka.KeyWords: Asian summer monsoon; chemical transport; convective transport; airborne field campaign; upper troposphere and lower stratosphereDOI: 10.1029/2025JD044417
