Arabian Sea Chemical Concentrations and Peroxide Ratios from 1994-1996 Cruises

Eleven research cruises aboard the R/V Thomas G. Thompson collected water samples southeast of Oman from October 1994 to January 1996. The dataset contains manganese, iodide, total iodine, and sulfide concentrations, plus hydrogen peroxide to oxygen ratios, measured during cruise TTN-045. Data is part of the U.S. Joint Global Ocean Flux Study (JGOFS) to understand ocean carbon cycling.

Use Cases

• Analyze manganese, iodide, and sulfide concentration variations with depth from CTD rosette bottle samples.
• Model the relationship between hydrogen peroxide to oxygen ratios and high iodide/nitrite concentrations using voltammetry data.
• Study seasonal changes in ocean chemistry across monsoon and inter-monsoon cycles using data from eleven cruises.
• Investigate the role of Arabian Sea chemical dynamics in the global carbon cycle as part of JGOFS objectives.

Strengths

• Seasonal coverage of annual monsoon and inter-monsoon cycles from eleven cruises.
• Data collection spanned approximately sixteen months, providing temporal context.
• Specific chemical measurements (Mn, I-, total iodine, SO4--, H2O2/O2 ratio) are documented.

Limitations

• Sample size, row count, and specific measurement depths are unknown.
• Data is temporally stale, with collection ending in January 1996.
• Geographic coverage is limited to the area southeast of Oman.

Provenance

Source

U.S. Joint Global Ocean Flux Study (JGOFS), data retrieved from WHOI website.

Collection Method

Water samples collected by CTD rosette bottle sampler at various depths; hydrogen peroxide to oxygen ratio measured by voltammetry.

Time Range

October 1994 to January 1996

Freshness

1996-01-31

Geography

Arabian Sea, southeast of Oman.