Riding over the Kuroshio from the South to the East China Sea: Mixing and transport of DIC

David D. Sheu; Wen-Chen Chou; C. T. Arthur ChenChing-Ling WeiHsiu-Ling HsiehWei-Ping HouMinhan Dai

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Riding over the Kuroshio from the South to the East China Sea: Mixing and transport of DIC

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Export of dissolved inorganic carbon (DIC) to adjoining oceans enhances the potential of CO_2 sequestration in marginal seas. By using a series of measured DIC depth profiles and reported flow transports, we estimated that the intermediate outflow (100-600 m) from the South China Sea is capable of transporting 6.5 ± 4.1 Tg (1 Tg = 10~(12)g) of biologically mediated carbon (DIC~(bio)) annually to the East China Sea (ECS) via the northwardly flowing Kuroshio current. The mixing and transport of these DIC-rich waters would raise 3 and 16 of DIC/TA ratio and the Revelle factor of the adjoining seawaters, respectively. Upon upwelling onto the ECS shelf, these DIC-rich waters would counteract the potential of CO_2 uptake of shelf waters that might have been enhanced by the accompanying increase in nutrient inputs, thus complicating assessment of the ECS as a net CO_2 source or sink.

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《Geophysical Research Letters》 |2009年第7期|L07603-5|共5页
作者
David D. Sheu; Wen-Chen Chou; C. T. Arthur ChenChing-Ling WeiHsiu-Ling HsiehWei-Ping HouMinhan Dai;
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Institute of Marine Geology and Chemistry, National Sun Yat-Sen University, Kaohsiung, Taiwan;

Institute of Marine Environmental Chemistry and Ecology, National Taiwan Ocean University, Keelung, Taiwan;

Institute of Oceanography, National Taiwan University, Taipei, TaiwanState Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China;

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中图分类 562B0075;
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Riding over the Kuroshio from the South to the East China Sea: Mixing and transport of DIC

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