SOCCOM Southern Ocean Hydrographic and Carbon Chemistry Profiles

Discrete samples and profile observations from the R/V S.A. Agulhas I cruise EXPOCODE 91AA20171209 collected 58 days of measurements in the Indian Ocean from 2017-12-09 to 2018-02-04. The data include total alkalinity, pH, temperature, salinity, oxygen, nutrients, and ammonia. This cruise was part of the Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) project and an Antarctic resupply mission.

Use Cases

• Modeling ocean carbon uptake based on total alkalinity and pH measurements.
• Studying water mass properties and circulation using temperature and salinity profiles.
• Assessing marine ecosystem health through nutrient and oxygen concentration analysis.
• Calibrating autonomous biogeochemical floats (SOCCOM project) with discrete sample data.

Strengths

• Contains a specific 58-day time series from a defined research cruise (EXPOCODE 91AA20171209).
• Includes multiple co-located chemical and physical measurements (alkalinity, pH, nutrients, temperature, salinity).
• Dataset is hosted on multiple authoritative platforms (NASA Earthdata, Data.gov), indicating curation and importance.

Limitations

• Column names and a precise row count are not provided in any source, limiting immediate usability.
• Conflicting 'last updated' dates (2018-02-04 vs. 2026-03-06) create uncertainty about data currency.
• License and author information are explicitly listed as unknown or 'None'.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI)

Collection Method

Discrete samples and profile observations collected during a research vessel cruise.

Time Range

2017-12-09 to 2018-02-04

Freshness

2026-03-06 00:07:26.585115

Geography

Indian Ocean, specifically the South West Indian Ocean during an Antarctic resupply cruise.