GLODAPv2: Southern Ocean CTD and Chemical Profile Data

NCEI Accession 0157442 contains discrete sample and profile data from the RV Nathaniel B. Palmer cruise in the South Pacific and Southern Oceans from February to March 2007. The dataset includes measurements for chlorofluorocarbon-12, dissolved oxygen, nutrients, salinity, and temperature collected using CTD and bottle instruments. It is part of the GLODAPv2 compilation, contributed by researchers from Lamont-Doherty Earth Observatory.

Use Cases

• Tracing water mass age and circulation using CFC-12 measurements.
• Analyzing nutrient distributions (nitrate, phosphate, silicate) to study biological productivity.
• Calculating ocean density and stratification from concurrent salinity and potential temperature profiles.
• Calibrating satellite-derived ocean color data with in-situ chlorophyll and nutrient measurements.
• Contributing to global ocean carbon and acidification assessments as part of the GLODAPv2 synthesis.

Strengths

• Includes a specific, multi-variable suite of chemical and physical measurements relevant to ocean carbon studies.
• Data collection is temporally bounded to a precise cruise from 2007-02-03 to 2007-03-26.
• Associated with the authoritative GLODAPv2 (Global Ocean Data Analysis Project) compilation.

Limitations

• Key metadata such as row count, file size, specific column names, and license are not provided by any source.
• Sources conflict on the 'last updated' date, reporting both 2007-03-26 and 2026-03-05.
• Documentation is sparse, with no details on data quality flags, processing methods, or uncertainty estimates.

Provenance

Source

Stanley S. Jacobs (S. Jacobs) of Lamont-Doherty Earth Observatory, Columbia University.

Collection Method

Discrete samples and continuous profiles collected via CTD and bottle casts from the RV Nathaniel B. Palmer.

Time Range

2007-02-03 to 2007-03-26

Freshness

2026-03-05 22:24:50.745524

Geography

South Pacific Ocean and Southern Oceans (specifically > 60 degrees South)