The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview

L. L. Pan; E. L. Atlas; P. A. Newman; T. Thornberry; K. W. Jucks; O. B. Toon; W. J. Randel; Q. Liang; D. E. Kinnison; R. Ueyama; J. F. Bresch; S. B. Honomichl; W. P. Smith; R. S. Hornbrook; L. Ziemba; M. Fujiwara; E. C. Apel; M. Barucci; G. Bianchini; M. Brown; T. P. Bui; T. Campos; M. Chin; F. D’Amato; J. Dean-Day; G. Diskin; A. Franchin; C. Gurganus; L. T. Iraci; J. Kim; J. H. Koo; L. R. Lait; K. Lesko; J. R. Podolske; A. Rollins; T. Sakai; K. Shiraishi; V. Treadaway; S. Viciani; E. Waxman

doi:10.1029/2025JD044417

The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview

L. L. Pan
, E. L. Atlas
, P. A. Newman
, T. Thornberry
, K. W. Jucks
, O. B. Toon
, W. J. Randel
, Q. Liang
, D. E. Kinnison
, R. Ueyama
, J. F. Bresch
, S. B. Honomichl
, W. P. Smith
, R. S. Hornbrook
, L. Ziemba
, M. Fujiwara
, E. C. Apel
, M. Barucci
, G. Bianchini
, M. Brown

T. P. Bui, T. Campos, M. Chin, F. D’Amato, J. Dean-Day, G. Diskin, A. Franchin, C. Gurganus, L. T. Iraci, J. Kim, J. H. Koo, L. R. Lait, K. Lesko, J. R. Podolske, A. Rollins, T. Sakai, K. Shiraishi, V. Treadaway, S. Viciani, E. Waxman

National Center for Atmospheric Research
University of Miami
NASA Goddard Space Flight Center
National Oceanic and Atmospheric Administration
National Aeronautics and Space Administration
University of Colorado Boulder
NASA Ames Research Center
NASA Langley Research Center
Hokkaido University
National Research Council of Italy
Bay Area Environmental Research Institute
Kongju National University
Yonsei University
Japan Meteorological Agency
Fukuoka University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

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.

Original language	English
Article number	e2025JD044417
Journal	Journal of Geophysical Research: Atmospheres
Volume	130
Issue number	23
DOIs	https://doi.org/10.1029/2025JD044417
State	Published - Dec 16 2025
Externally published	Yes

Keywords

Asian summer monsoon
airborne field campaign
chemical transport
convective transport
upper troposphere and lower stratosphere

Access to Document

10.1029/2025JD044417

Cite this

Pan, L. L., Atlas, E. L., Newman, P. A., Thornberry, T., Jucks, K. W., Toon, O. B., Randel, W. J., Liang, Q., Kinnison, D. E., Ueyama, R., Bresch, J. F., Honomichl, S. B., Smith, W. P., Hornbrook, R. S., Ziemba, L., Fujiwara, M., Apel, E. C., Barucci, M., Bianchini, G., ... Waxman, E. (2025). The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview. Journal of Geophysical Research: Atmospheres, 130(23), Article e2025JD044417. https://doi.org/10.1029/2025JD044417

@article{0e15f8dd6ade445094e78bcb4af95688,

title = "The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview",

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.",

keywords = "Asian summer monsoon, airborne field campaign, chemical transport, convective transport, upper troposphere and lower stratosphere",

author = "Pan, \{L. L.\} and Atlas, \{E. L.\} and Newman, \{P. A.\} and T. Thornberry and Jucks, \{K. W.\} and Toon, \{O. B.\} and Randel, \{W. J.\} and Q. Liang and Kinnison, \{D. E.\} and R. Ueyama and Bresch, \{J. F.\} and Honomichl, \{S. B.\} and Smith, \{W. P.\} and Hornbrook, \{R. S.\} and L. Ziemba and M. Fujiwara and Apel, \{E. C.\} and M. Barucci and G. Bianchini and M. Brown and Bui, \{T. P.\} and T. Campos and M. Chin and F. D{\textquoteright}Amato and J. Dean-Day and G. Diskin and A. Franchin and C. Gurganus and Iraci, \{L. T.\} and J. Kim and Koo, \{J. H.\} and Lait, \{L. R.\} and K. Lesko and Podolske, \{J. R.\} and A. Rollins and T. Sakai and K. Shiraishi and V. Treadaway and S. Viciani and E. Waxman",

year = "2025",

month = dec,

day = "16",

doi = "10.1029/2025JD044417",

language = "English",

volume = "130",

journal = "Journal of Geophysical Research: Atmospheres",

issn = "2169-897X",

publisher = "Wiley-Blackwell Publishing Ltd",

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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, JH, Lait, LR, Lesko, K, Podolske, JR, Rollins, A, Sakai, T, Shiraishi, K, Treadaway, V, Viciani, S & Waxman, E 2025, 'The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview', Journal of Geophysical Research: Atmospheres, vol. 130, no. 23, e2025JD044417. https://doi.org/10.1029/2025JD044417

TY - JOUR

T1 - The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP)

T2 - An Overview

AU - Pan, L. L.

AU - Atlas, E. L.

AU - Newman, P. A.

AU - Thornberry, T.

AU - Jucks, K. W.

AU - Toon, O. B.

AU - Randel, W. J.

AU - Liang, Q.

AU - Kinnison, D. E.

AU - Ueyama, R.

AU - Bresch, J. F.

AU - Honomichl, S. B.

AU - Smith, W. P.

AU - Hornbrook, R. S.

AU - Ziemba, L.

AU - Fujiwara, M.

AU - Apel, E. C.

AU - Barucci, M.

AU - Bianchini, G.

AU - Brown, M.

AU - Bui, T. P.

AU - Campos, T.

AU - Chin, M.

AU - D’Amato, F.

AU - Dean-Day, J.

AU - Diskin, G.

AU - Franchin, A.

AU - Gurganus, C.

AU - Iraci, L. T.

AU - Kim, J.

AU - Koo, J. H.

AU - Lait, L. R.

AU - Lesko, K.

AU - Podolske, J. R.

AU - Rollins, A.

AU - Sakai, T.

AU - Shiraishi, K.

AU - Treadaway, V.

AU - Viciani, S.

AU - Waxman, E.

PY - 2025/12/16

Y1 - 2025/12/16

N2 - 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.

AB - 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.

KW - Asian summer monsoon

KW - airborne field campaign

KW - chemical transport

KW - convective transport

KW - upper troposphere and lower stratosphere

UR - https://www.scopus.com/pages/publications/105023289221

U2 - 10.1029/2025JD044417

DO - 10.1029/2025JD044417

M3 - Article

AN - SCOPUS:105023289221

SN - 2169-897X

VL - 130

JO - Journal of Geophysical Research: Atmospheres

JF - Journal of Geophysical Research: Atmospheres

IS - 23

M1 - e2025JD044417

ER -

The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview

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Keywords

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