Manganese, Iodine and Sulfide Concentrations and Peroxide to Oxygen Ratio Measured during the U.S. JGOFS Arabian Sea Process Study

A component of U.S. Joint Global Ocean Flux Study (JGOFS) is the
Arabian Sea Process Study. Eleven cruises took place aboard the R/V
Thomas G. Thompson for about sixteen months from October 1994 until
January 1996. These cruises provided seasonal coverage of the annual
monsoon and inter-monsoon cycles in the area southeast of Oman - from
where the cruises were staged. The monsoons of the Arabian Sea drive
a uniquely intense carbon cycling system, and it is the goal of JGOFS
to better understand the role of the oceans in global carbon cycling.

Manganese (Mn), iodide (I-), total iodine, and sulfide (SO4--)
concentrations were measured from water samples collected by the CTD
rosette bottle sampler at various depths on cruise TTN-045.

Hydrogen peroxide to oxygen ratio was measured by voltammetry where
iodide and/or nitrite concentration was high.

The data is public domain and can be retrieved on-line at
"http://usjgofs.whoi.edu/jg/dir/jgofs/"

[This information was obtained from U.S. JGOFS website at WHOI.]

美国联合全球海洋通量研究计划（U.S. Joint Global Ocean Flux Study, JGOFS）的组成部分之一为阿拉伯海过程研究。11次科考巡航由“托马斯·G·汤普森”号研究考察船（R/V Thomas G. Thompson）执行，巡航周期约16个月，自1994年10月启动，至1996年1月结束。本次系列巡航覆盖了阿曼东南海域（即巡航始发海域）的年度季风与季间循环的季节性变化。阿拉伯海季风驱动了独具特色的高强度碳循环系统，而JGOFS的目标之一是深化对海洋在全球碳循环中所起作用的认知。

在TTN-045航次中，研究人员借助CTD采水器（CTD rosette bottle sampler）采集不同深度的海水样本，对其中的锰（Mn）、碘离子（I⁻）、总碘及硫化物（SO₄²⁻）浓度开展了测定工作。

在碘离子和/或亚硝酸盐浓度较高的站位，研究人员通过伏安法测定了过氧化氢与氧气的比值。

本数据集属于公共领域数据，可通过在线链接"http://usjgofs.whoi.edu/jg/dir/jgofs/"获取。

[本信息源自伍兹霍尔海洋研究所（WHOI）的美国JGOFS官方网站。]