Atlantic Ocean Carbon Chemistry and Hydrographic Profiles from WOCE Cruise OACES93, 1993

Discrete sample and profile data collected from NOAA Ship Malcolm Baldrige in the North and South Atlantic Ocean during July-August 1993. The dataset includes measurements of carbon dioxide partial pressure, dissolved inorganic carbon, alkalinity, pH, temperature, salinity, nutrients, and chlorofluorocarbons. It was collected by NOAA researchers Rik Wanninkhof and John L. Bullister as part of the OACES93_A16N cruise under the World Ocean Circulation Experiment.

Use Cases

• Calibrating ocean carbon cycle models based on direct measurements of dissolved inorganic carbon and alkalinity.
• Studying ocean acidification trends using historical pH and carbon dioxide partial pressure data.
• Analyzing deep-water formation and circulation using chlorofluorocarbon (CFC-11, CFC-12) tracer data.
• Investigating nutrient cycling in the Atlantic Ocean based on nitrate, nitrite, phosphate, and silicate measurements.

Strengths

• Data includes multiple co-located biogeochemical parameters (carbon, nutrients, CFCs) from the same cruise, enabling multivariate analysis.
• Collection was part of the standardized World Ocean Circulation Experiment (WOCE) Hydrographic Program, suggesting consistent methodology.
• Specific collection period (1993-07-04 to 1993-08-30) and geographic scope (North and South Atlantic Ocean) are clearly defined.

Limitations

• Last updated 1993-08-30; freshness should be verified for contemporary climate studies.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale ML tasks.

Provenance

Source

NOAA_NCEI; collected by Rik Wanninkhof (NOAA AOML) and John L. Bullister (NOAA PMEL).

Collection Method

Discrete samples and profiles collected using CTD and bottle instruments.

Time Range

1993-07-04 to 1993-08-30

Freshness

1993-08-30

Geography

North Atlantic Ocean and South Atlantic Ocean