OISO-28 Cruise: Indian Ocean Surface Carbon Chemistry Measurements

From January 5 to February 9, 2018, the R/V Marion-Dufresne collected surface underway measurements during the OISO-28 cruise in the Indian Ocean. The dataset includes dissolved inorganic carbon, total alkalinity, temperature, and salinity, and is part of the long-running OISO program initiated in 1998. These measurements contribute to international carbon synthesis efforts like SOCAT and GLODAP.

Use Cases

• Calculating ocean acidification metrics based on DIC and TALK measurements
• Analyzing spatial patterns of carbon parameters in the South-Western Indian Ocean
• Contributing to international carbon data syntheses (SOCAT/GLODAP) using standardized cruise data
• Studying the relationship between physical (temperature, salinity) and chemical (DIC, TALK) ocean properties

Strengths

• Data is part of a long-term, repeated observation program (OISO) initiated in 1998
• Contributes to and is validated by international synthesis products (SOCAT, GLODAP)
• Provides a specific, high-resolution temporal snapshot from a 35-day cruise

Limitations

• Column names and dataset size (rows, file size) are unknown across all sources
• Metadata freshness is conflicting: one source lists an update in 2026, another lists the cruise end date in 2018
• The license and author information are not provided

Provenance

Source

NOAA_NCEI

Collection Method

Surface underway measurements collected during a dedicated research cruise (OISO-28)

Time Range

2018-01-05 to 2018-02-09

Freshness

2026-03-06 00:12:23.668721

Geography

Indian Ocean, specifically South-Western Indian and Southern Oceans