Future changes in coastal upwelling and biological production in eastern boundary upwelling systems

Tianshi Du, Shengpeng Wang (), Zhao Jing, Lixin Wu, Chao Zhang and Bihan Zhang
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Tianshi Du: Laoshan Laboratory
Shengpeng Wang: Laoshan Laboratory
Zhao Jing: Laoshan Laboratory
Lixin Wu: Laoshan Laboratory
Chao Zhang: Ocean University of China
Bihan Zhang: Ocean University of China

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Upwelling along oceanic eastern boundaries has attracted significant attention due to its profound effects on ocean productivity and associated biological and socioeconomic implications. However, uncertainty persists regarding the evolution of coastal upwelling with climate change, particularly its impact on future biological production. Here, using a series of state-of-the-art climate models, we identify a significant seasonal advancement and prolonged duration of upwelling in major upwelling systems. Nevertheless, the upwelling intensity (total volume of upwelled water) exhibits complex changes in the future. In the North Pacific, the upwelling is expected to attenuate, albeit with a minor magnitude. Conversely, in other basins, coastal upwelling diminishes significantly in equatorward regions but displays a slight decline or even an enhancement at higher latitudes. The climate simulations also reveal a robust connection between changes in upwelling intensity and net primary production, highlighting the crucial impact of future coastal upwelling alterations on marine ecosystems.

Date: 2024
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DOI: 10.1038/s41467-024-50570-z

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