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Pushing the frontiers of marine ecological modeling: where are we now and how can we move forward?
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A modeling study on the spatio-temporal variability of primary production in the East/Japan Sea
P-B3-02
Rubao Ji* , Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
Meibing Jin, International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA
Yun Li, College of Marine Science, University of South Florida, St. Petersburg, FL, USA
Yun-Ho Kang, School of Earth Sciences & Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
Chang-Keun Kang, School of Earth Sciences & Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
Presenter Email: rji@whoi.edu |
| The primary productivity of the East/Japan Sea (EJS) displays strong spatio-temporal variability, largely driven by the oceanographic forcings that vary across the different regions of the sea. Consequently, the ecosystem responses to climate variability could be region-dependent. The model-based analysis from this study synthesized the complex biological-physical interactions across the EJS, and suggested an intricate role of water column stability in driving the observed seasonal and basin-scale variability. Compared to the northern EJS (e.g. the Japan Basin), the southern EJS (e.g. the Ulleung and Yamato Basins) has a more favorable mixing regime for higher productivity in both winter and summer, balancing the need for phytoplankton growth in terms of nutrient and light availability. In addition, the current- and wind- induced upwelling along the east coast of Korea further enhances the productivity in the southwestern EJS. The general south-north ‘see-saw’ pattern of mixing regime, combined with upwelling-downwelling switching, could be the key driver for the observed production patterns in the EJS. |
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