OISO-10 Cruise: Southern Ocean Surface Carbon Chemistry

Southern Ocean surface measurements of dissolved inorganic carbon, total alkalinity, temperature, and salinity were collected from the R/V Marion-Dufresne during the OISO-10 cruise from January 26 to February 15, 2003. The data are part of the long-term OISO program, initiated in 1998, which monitors carbon dioxide and associated parameters along repeated transects in the South-Western Indian and Southern Oceans. These measurements contribute to international synthesis projects like the Surface Ocean CO2 Atlas (SOCAT) and the Global Ocean Data Analysis Project (GLODAP).

Use Cases

• Tracking ocean acidification trends based on dissolved inorganic carbon and total alkalinity measurements.
• Calibrating and validating ocean carbon models using in-situ surface pCO2 and associated parameter data.
• Assessing the Southern Ocean's role as a carbon sink based on repeated cruise line observations.
• Contributing to international carbon data syntheses like SOCAT and GLODAP with standardized cruise data.

Strengths

• Data is integrated into major international synthesis projects (SOCAT and GLODAP), indicating quality standards.
• Part of a long-term monitoring program (OISO) initiated in 1998, providing temporal context.
• Covers a specific, important geographic region (Southern Ocean) over a defined cruise period.

Limitations

• Key metadata such as column names, row count, file size, and license are unknown across all sources.
• Conflicting 'last updated' dates exist between platforms (2003-02-15 vs. 2026-03-06), creating uncertainty about data currency.
• The dataset's completeness is medium; while the program's purpose is clear, the specific data structure and granularity are not detailed.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Surface underway measurements collected during the R/V Marion-Dufresne OISO-10 research cruise.

Time Range

2003-01-26 to 2003-02-15

Freshness

2026-03-06 00:02:59.785265

Geography

Southern Ocean, specifically along the repeated cruise lines of the R/V Marion-Dufresne in the South-Western Indian and Southern Oceans.