AirCore observations at Northern Tibetan Plateau during the Asian summer monsoon

We present data and analysis of a set of balloon-borne sounding profiles, which includes co-located O3, CO, CH4, and particles, over the northern Tibetan Plateau during an Asian summer monsoon (ASM) season. These novel measurements shed light on the ASM transport behavior near the northern edge of the anticyclone. Joint analyses of these species with the temperature and wind profiles and supported by back trajectory modeling identify three distinct transport processes that dominate the vertical chemical structure in the middle troposphere, upper troposphere (UT), and the tropopause region. The correlated changes in profile structures in the middle troposphere highlight the influence of the strong westerly jet. Elevated constituent concentrations in the UT identify the main level of convective transport at the upstream source regions. Observed higher altitude maxima for CH4 characterize the airmasses' continued ascent following convection. These data complement constituent observations from other parts of the ASM anticyclone.

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Author Yi, Y.
Cai, Z.
Liu, Y.
Tao, M.
Fang, S.
Yang, D.
Bai, Z.
Liang, M.
Yao, B.
Bian, J.
Honomichl, Shawn B.
Randel, William
Pan, Laura L.
Publisher UCAR/NCAR - Library
Publication Date 2024-05-28T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2025-07-10T20:01:54.205059
Metadata Record Identifier edu.ucar.opensky::articles:27215
Metadata Language eng; USA
Suggested Citation Yi, Y., Cai, Z., Liu, Y., Tao, M., Fang, S., Yang, D., Bai, Z., Liang, M., Yao, B., Bian, J., Honomichl, Shawn B., Randel, William, Pan, Laura L.. (2024). AirCore observations at Northern Tibetan Plateau during the Asian summer monsoon. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7h1366f. Accessed 09 August 2025.

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