JADE92: Hydrographic and Tracer Profiles from the Indian Ocean

Indian Ocean and Savu Sea data from the 1992 JADE92 cruise includes discrete sample and profile measurements of chlorofluorocarbons, dissolved gases, and physical properties. The dataset was collected using CTD and bottle instruments aboard the R/V Marion Dufresne. It likely contains vertical profiles of water temperature, salinity, dissolved oxygen, CFC-11, CFC-12, and delta helium-3.

Use Cases

• Tracing water mass age and circulation pathways based on CFC-11 and CFC-12 concentrations.
• Analyzing ocean ventilation and mixing processes using vertical profiles of potential temperature and salinity.
• Calibrating or validating ocean biogeochemical models with discrete measurements of dissolved oxygen and delta helium-3.
• Studying historical ocean conditions in the Indian Ocean and Savu Sea region for climate baseline studies.

Strengths

• Includes multiple key oceanographic tracers (CFCs, delta helium-3) for circulation studies.
• Data collection is associated with a specific, documented research cruise (JADE92) with known principal investigators.
• Cross-platform presence on NOAA and NASA portals suggests formal curation and archival importance.

Limitations

• Key metadata is missing: row count, file size, column names, and specific data license are not provided.
• Conflicting 'last updated' dates (1992 vs. 2026) create uncertainty about metadata maintenance.
• Documentation gaps exist, as the specific data structure and sampling resolution are not described.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce; collected by researchers from Universite Pierre et Marie Curie (LOCEAN, LBCM).

Collection Method

Discrete sample and profile observations collected using CTD and bottle instruments from the R/V Marion Dufresne.

Time Range

1992-02-17 to 1992-03-23

Freshness

2026-03-06 00:22:25.799333

Geography

Indian Ocean and Savu Sea