OISO-27: Surface Underway Carbon Measurements in the Indian Ocean

The OISO-27 cruise collected continuous sea surface measurements from January 5 to February 7, 2017. The dataset includes partial pressure of CO2 (pCO2), temperature, salinity, and likely associated parameters like dissolved inorganic carbon, nutrients, and chlorophyll-a. These measurements are part of the long-term OISO program, initiated in 1998, and contribute to international carbon synthesis efforts like SOCAT and GLODAP.

Use Cases

• Analyzing ocean acidification trends based on continuous pCO2 measurements.
• Studying carbon flux between ocean and atmosphere using surface underway data.
• Calibrating satellite-derived salinity or temperature products with in-situ measurements.
• Contributing to international carbon data syntheses (SOCAT/GLODAP) with repeated line observations.
• Investigating biogeochemical relationships using associated parameters like nutrients and chlorophyll-a.

Strengths

• Provides continuous measurements over a specific 34-day cruise period in 2017.
• Part of a long-term observational program (OISO) initiated in 1998, suggesting consistent methodology.
• Data is integrated into international synthesis products (SOCAT, GLODAP), indicating quality standards.

Limitations

• Column names and exact data structure are unknown from all sources.
• Metadata conflicts exist: the 'last updated' date differs between platforms (2026-03-06 vs. 2017-02-07).
• No information on dataset size, row count, license, or author is provided.

Provenance

Source

OISO program (Océan Indien Service d'Observations), supported by INSU/CNRS, with data hosted by NOAA_NCEI.

Collection Method

Continuous surface underway measurements collected aboard the R/V Marion Dufresne (IPEV-TAAF).

Time Range

2017-01-05 to 2017-02-07

Freshness

2026-03-06 00:08:09.702347

Geography

Indian Ocean, specifically the South-Western Indian and Southern Oceans along repeated cruise lines.