Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 16
Articles | Volume 23, issue 16
https://doi.org/10.5194/bg-23-5697-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-5697-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 16
Research article
 | 
20 Aug 2026
Research article |  | 20 Aug 2026

Distinct phytoplankton responses to dust in the Chinese marginal seas: role of synoptic circulation and air–sea heat exchange

Jiehua Hu, Rong Tian, Jinpei Yan, Xiaoke Zhang, Shanshan Wang, Heng Sun, Hanyue Xu, Shiyu Shen, and Qisheng Zeng

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Short summary
We study the response of Chl a to spring dust variability in the Chinese marginal seas over 2003–2023, revealing contrasting regional responses driven by distinct synoptic circulation patterns. Mongolian cyclones in the north and anticyclones in the south drive opposing air–sea heat flux anomalies and MLD adjustments that regulate Chl a on daily timescales. Our study highlights synoptic-scale atmospheric forcing and air–sea heat exchange as key pathways linking dust to phytoplankton variability.
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