Articles | Volume 7, issue 3
https://doi.org/10.5194/wcd-7-1821-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-7-1821-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Subseasonal predictability and Rossby wave dynamics of blocking high during transitional seasons: insights from three successive events in May–June 2023
Zhixiang Li
School of Atmospheric Sciences, Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, People's Republic of China
Key Laboratory of Earth System Numerical Modeling and Application, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
School of Atmospheric Sciences, Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, People's Republic of China
Yimin Liu
Key Laboratory of Earth System Numerical Modeling and Application, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
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Short summary
This work studies the dynamical linkages, local wave parameters, and subseasonal predictability of three successive blocking events that are associated with continual extreme events during May–June 2023. These blocks are interconnected via downstream Rossby wave energy dispersion and are dominated by the regime of slowly propagating, large-amplitude planetary-scale waves. Predictability beyond two weeks depends on capturing upstream quasi-stationary troughs and the associated energy dispersion.
This work studies the dynamical linkages, local wave parameters, and subseasonal predictability...