Dynamics of the Asian Summer Monsoon Anticyclone: insights from potential vorticity tendency diagnostics

Li, Ninghui; Wright, Jonathon S.; Rupp, Philip; Ming, Alison; Zhang, Shenglong; Gao, Jie

doi:10.5194/wcd-7-1853-2026

Articles | Volume 7, issue 3

https://doi.org/10.5194/wcd-7-1853-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wcd-7-1853-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7, issue 3

Research article

|

28 Sep 2026

Research article |

| 28 Sep 2026

Dynamics of the Asian Summer Monsoon Anticyclone: insights from potential vorticity tendency diagnostics

Ninghui Li, Jonathon S. Wright, Philip Rupp, Alison Ming, Shenglong Zhang, and Jie Gao

Supplement

https://doi.org/10.5194/wcd-7-1853-2026-supplement

Data sets

Complete ERA5 from 1940: Fifth generation of ECMWF atmospheric reanalyses of the global climate Hans Hersbach et al. https://doi.org/10.24381/cds.143582cf

ERA5 hourly data on pressure levels from 1940 to present Hans Hersbach et al. https://doi.org/10.24381/cds.bd0915c6

The Japanese Reanalysis for Three Quarters of a Century JMA https://doi.org/10.20783/DIAS.645

The Japanese Reanalysis for Three Quarters of a Century (JRA-3Q) JMA https://doi.org/10.5065/AVTZ-1H78

MERRA-2 inst3_3d_asm_Nv: 3d,3-Hourly,Instantaneous,Model-Level,Assimilation,Assimilated Meteorological Fields V5.12.4 GMAO https://doi.org/10.5067/WWQSXQ8IVFW8

MERRA-2 tavg3_3d_tdt_Np: 3d,3-Hourly,Time-Averaged,Pressure-Level,Assimilation,Temperature Tenencies V5.12.4 GMAO https://doi.org/10.5067/9NCR9DDDOPFI

Short summary

This study examines how the Asian Summer Monsoon Anticyclone changes during summer. It usually has three main centers over the Iranian Plateau, Tibetan Plateau, and western Pacific. Its movement is mainly controlled by winds, while atmospheric heating influences its strength and development.