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A Multimodel Investigation of Asian Summer Monsoon UTLS Transport Over the Western PacificThe Asian summer monsoon (ASM) as a chemical transport system is investigated using a suite of models in preparation for an airborne field campaign over the Western Pacific. Results show that the dynamical process of anticyclone eddy shedding in the upper troposphere rapidly transports convectively uplifted Asian boundary layer air masses to the upper troposphere and lower stratosphere over the Western Pacific. The models show that the transported air masses contain significantly enhanced aerosol loading and a complex chemical mixture of trace gases that are relevant to ozone chemistry. The chemical forecast models consistently predict the occurrence of the shedding events, but the predicted concentrations of transported trace gases and aerosols often differ between models. The airborne measurements to be obtained in the field campaign are expected to help reduce the model uncertainties. Furthermore, the large-scale seasonal chemical structure of the monsoon system is obtained from modeled carbon monoxide, a tracer of the convective transport of pollutants, which provides a new perspective of the ASM circulation, complementing the dynamical characterization of the monsoon.
Document ID
20240000283
Acquisition Source
Goddard Space Flight Center
Document Type
Accepted Manuscript (Version with final changes)
Authors
Laura L. Pan ORCID
(National Center for Atmospheric Research Boulder, United States)
Douglas Kinnison ORCID
(National Center for Atmospheric Research Boulder, United States)
Qing Liang ORCID
(Goddard Space Flight Center Greenbelt, United States)
Mian Chin ORCID
(Goddard Space Flight Center Greenbelt, United States)
Michelle L. Santee ORCID
(Jet Propulsion Laboratory La Cañada Flintridge, United States)
Johannes Flemming ORCID
(European Centre for Medium-Range Weather Forecasts Reading, United Kingdom)
Warren P. Smith ORCID
(National Center for Atmospheric Research Boulder, United States)
Shawn B. Honomichl ORCID
(Atmospheric Chemistry Observations & Modeling Boulder, United States)
James F. Bresch ORCID
(National Center for Atmospheric Research Boulder, United States)
Leslie R. Lait ORCID
(Science Systems & Applications, Inc. Hampton, VA, USA)
Yunqian Zhu ORCID
(National Center for Atmospheric Research Boulder, United States)
Simone Tilmes ORCID
(National Center for Atmospheric Research Boulder, United States)
Peter R. Colarco ORCID
(Goddard Space Flight Center Greenbelt, United States)
Juying Warner ORCID
(University of Maryland, College Park College Park, United States)
Adrien Vuvan
(Université Sorbonne Paris Nord Villetaneuse, France)
Cathy Clerbaux ORCID
(Université Sorbonne Paris Nord Villetaneuse, France)
Elliot L. Atlas ORCID
(University of Miami Coral Gables, United States)
Paul A. Newman ORCID
(Goddard Space Flight Center Greenbelt, United States)
Troy Thornberry ORCID
(University of Colorado Boulder Boulder, United States)
William J. Randel ORCID
(National Center for Atmospheric Research Boulder, United States)
Owem B. Toon ORCID
(University of Colorado Boulder Boulder, United States)
Date Acquired
January 8, 2024
Publication Date
December 13, 2022
Publication Information
Publication: Journal of Geophysical Research: Atmospheres
Publisher: American Geophysical Union
Volume: 127
Issue: 24
Issue Publication Date: December 27, 2022
ISSN: 2169-897X
e-ISSN: 2169-8996
Subject Category
Geophysics
Earth Resources and Remote Sensing
Funding Number(s)
WBS: 281945.02.04.04.31
WBS: 281945.02.80.01.01
CONTRACT_GRANT: 80NM0018D0004
CONTRACT_GRANT: NNG17HP01C
CONTRACT_GRANT: SAA-CA-21-34835
CONTRACT_GRANT: NSF NCAR 1852977
CONTRACT_GRANT: NSF AGS-1853932
CONTRACT_GRANT: NSF AGS-1853948
CONTRACT_GRANT: NASA NNX17AE43G
CONTRACT_GRANT: NSF AGS-1853929
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
NASA Peer Committee
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