*Sze Ling Ho¹、Jeroen Groeneveld^2,3、Andreas Mackensen⁴、Mahyar Mohtadi³、Thomas Laepple² (1.Institute of Oceanography, National Taiwan University, 10617 Taipei, Taiwan、2.Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Telegrafenberg A45, D-14473 Potsdam, Germany、3.MARUM-Center for Marine Environmental Sciences, University of Bremen, Klagenfurter Strasse 2-4, D-28359 Bremen, Germany、4.Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Am Alten Hafen 26, D-27568 Bremerhaven, Germany)