Contribution of ocean current to the increase in N abundance in the Northwestern Pacific marginal seas

Authors

  • Seung-Kyu Kim,

    1. Department of Marine Science, College of Natural Sciences, University of Incheon, Yeonsu-gu, Incheon, South Korea
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  • Kyung-Il Chang,

    1. School of Earth and Environment Sciences/Research Institute of Oceanography, Seoul National University, Seoul, South Korea
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  • Bongguk Kim,

    1. School of Earth and Environment Sciences/Research Institute of Oceanography, Seoul National University, Seoul, South Korea
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  • Yang-Ki Cho

    Corresponding author
    1. School of Earth and Environment Sciences/Research Institute of Oceanography, Seoul National University, Seoul, South Korea
    • Corresponding author: Y.-K. Cho, School of Earth and Environment Sciences, Seoul National University, Seoul 151-742, South Korea. (choyk@snu.ac.kr)

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Abstract

[1] In the northwestern Pacific marginal seas, there has been a rapid temporal increase and spatial variability in the relative abundance of dissolved inorganic nitrogen over dissolved inorganic phosphate. The cause and mechanisms of this temporal and spatial variation is under debate. Recently, atmospheric deposition of nitrogen has been shown to be the major cause of the spatio-temporal variation in the concentration ratio of dissolved nitrogen and phosphate. We show that the transport by ocean currents is a more crucial factor causing the spatio-temporal variation in the ratio of dissolved nitrogen and phosphate in the study area.

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