Indian Ocean Hydrographic Data from Aurora Australis, September–October 1991

NODC Accession 0116370 contains chemical, physical, and profile data collected during the PACIFICA_09AR19910925 cruise of the AURORA AUSTRALIS research vessel. The dataset includes measurements of chlorofluorocarbons, dissolved oxygen, nutrients, salinity, and temperature from the Indian Ocean between September 25 and October 27, 1991. Data were collected by Stephen R. Rintoul of the Commonwealth Scientific and Industrial Research Organization using CTD and bottle instruments as part of the International CLIVAR Global Ocean Carbon and Repeat Hydrography Program.

Use Cases

• Modeling ocean carbon storage and transport based on CFC-11 and CFC-12 measurements.
• Analyzing changes in ocean heat content based on potential temperature (theta) and water temperature profiles.
• Studying marine nutrient cycles based on nitrate+nitrite, phosphate, and silicate concentration data.
• Investigating water mass properties and circulation based on salinity, dissolved oxygen, and hydrostatic pressure data.

Strengths

• Data includes multiple key oceanographic variables (CFCs, nutrients, temperature, salinity) for integrated analysis.
• Collected during a defined research cruise (PACIFICA_09AR19910925) with a clear temporal (1991-09-25 to 1991-10-27) and spatial (Indian Ocean) scope.
• Associated with the systematic International CLIVAR Global Ocean Carbon and Repeat Hydrography Program.

Limitations

• Last updated 1991-10-27 00:00:00; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

NOAA_NCEI

Collection Method

Data collected from discrete sample and profile observations using CTD and bottle instruments.

Time Range

1991-09-25 to 1991-10-27

Freshness

1991-10-27 00:00:00

Geography

Indian Ocean