Aragonite saturation state and dynamic mechanism in the southern Yellow Sea, China

Date created: 12 June 2019
This date indicates the date the dataset metadata was created on Pacific Data Hub.

Based upon surveys conducted in November 2012 and June 2013, the distribution and dynamics of aragonite saturation state ($Ømega$arag) were investigated in the southern Yellow Sea (SYS) of China. In summer, surface water $Ømega$arag ranged from 2.1–3.8 and enhanced biological production fueled by Changjiang River freshwater input increased $Ømega$arag to 3.8 in the southern SYS. However, subsurface water $Ømega$arag was \textless 2.0 in the central SYS. During autumn, surface water $Ømega$arag was 2.0–2.9, lower than that in summer due to ventilation between surface and low $Ømega$arag (1.0–1.4) subsurface waters in the central SYS. Community respiration and/or aerobic remineralization dominated low $Ømega$arag in subsurface waters, while water stratification influenced the level and scale of acidity accumulation. By the end of this century, waters with $Ømega$arag \textgreater 2.0 could disappear from the SYS with increasing atmospheric CO2, while bottom waters $Ømega$arag may become undersaturated due to the impact of eutrophication.

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Additional Info

  • Xu X
  • Zang K
  • Huo C
  • Zheng N
  • Zhao H
  • Wang J
  • Sun B