IN2025_V06: CTD Oceanographic Data from the Coral Sea Marine Park, Oct-Nov 2025

41 CTD deployments collected aboard the RV Investigator voyage IN2025_V06 between October 10 and November 14, 2025, departing from and returning to Brisbane. Data were acquired using a Sea-Bird SBE911 CTD unit with auxiliary sensors for fluorescence, turbidity, and dissolved oxygen, processed and archived by CSIRO's National Collections and Marine Infrastructure. The final conductivity calibration had a standard deviation of 0.0025203 PSU, and dissolved oxygen calibration had a standard deviation of 0.88132 μM.

Use Cases

• Modeling deep-sea biodiversity patterns based on hydrographic profiles from 41 CTD casts.
• Analyzing water column structure and oceanographic processes using binned pressure, temperature, and salinity data.
• Studying phytoplankton dynamics and water clarity using auxiliary sensor data for fluorescence, chlorophyll, and turbidity.
• Calibrating and validating biogeochemical models based on dissolved oxygen measurements with bottle data agreement.

Strengths

• Data from 41 distinct CTD deployments provides multiple spatial and temporal sampling points.
• Automated quality control was applied to remove spikes and out-of-range values.
• Multiple sensor types were deployed, including primary CTD sensors and auxiliary channels for PAR, fluorescence, and turbidity.
• Calibration statistics are provided, with a final conductivity SD of 0.0025203 PSU and dissolved oxygen SD of 0.88132 μM.

Limitations

• The final conductivity calibration standard deviation is noted as marginally outside the target of 'better than 0.002 PSU'.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment for large-scale ML tasks.

Provenance

Source

CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC)

Collection Method

Collected using a Sea-Bird SBE911 CTD unit #24 with a rosette sampler during a dedicated research voyage.

Time Range

October 10, 2025 to November 14, 2025 (AEST)

Freshness

Last updated 2026-04-26 16:21:28.310753; freshness should be verified.

Geography

Coral Sea Marine Park, voyage departed from and returned to Brisbane, Australia.