RV Investigator Voyage IN2026_V01 CTD Data from Antarctic COOKIES Expedition

37 CTD casts collected by the RV Investigator during the COOKIES voyage between January and February 2026. Data includes conductivity, temperature, depth, dissolved oxygen, and auxiliary sensor readings like PAR and Chlorophyll-A. The dataset was processed and archived by CSIRO's National Collections and Marine Infrastructure Information and Data Centre.

Use Cases

• Analyze water column structure based on conductivity, temperature, and depth profiles.
• Study dissolved oxygen dynamics in Antarctic waters based on calibrated sensor data.
• Investigate phytoplankton biomass distribution based on Chlorophyll-A and PAR sensor readings.
• Examine benthic boundary layer conditions based on data from the Benthic CTD camera.
• Assess data quality and sensor performance based on the described calibration procedures and standard deviations.

Strengths

• 37 CTD casts provide multiple sampling points.
• Final conductivity calibration had a standard deviation of 0.00128 PSU, meeting a target of better than 0.002 PSU.
• Multiple auxiliary sensors were installed, including PAR, CDOM, transmissometer, Chlorophyll-A, and Backscatter.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Collected using a Sea-Bird SBE911 CTD unit with a rosette sampler during a research voyage.

Time Range

January 02, 2026 to February 25, 2026.

Freshness

Last updated 2026-06-23 00:56:31.468758; freshness should be verified.

Geography

Voyage departed from and returned to Hobart; specific study area likely involves Antarctic waters.