IN2024_V03: CTD Data from Southeast Australian Marine Ecosystem Voyage

Southeast Australian marine ecosystem data from 83 CTD deployments during the RV Investigator voyage IN2024_V03 in May 2024. The data were collected using a Sea-Bird SBE911 CTD unit and processed by CSIRO's National Collections and Marine Infrastructure Information and Data Centre. Measurements include conductivity, temperature, depth, dissolved oxygen, chlorophyll-a, and other auxiliary parameters.

Use Cases

• Analyzing water column structure based on conductivity, temperature, and depth (CTD) profiles.
• Studying dissolved oxygen dynamics and calibration against bottle samples.
• Investigating phytoplankton biomass distribution based on chlorophyll-a fluorescence measurements.
• Examining optical water properties using CDOM and scattering data from auxiliary sensors.

Strengths

• Data from 83 CTD deployments provides detailed vertical profiles.
• Final conductivity calibration had a standard deviation of 0.0018351 PSU, meeting a target of better than 0.002 PSU.
• Dissolved oxygen calibration fit had a standard deviation of 0.83297 μM, with good agreement reported between CTD and bottle data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• CTD had minor issues at the beginning of the voyage, and an LADCP had a battery failure for the first three casts.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network via data.gov.au, collected by CSIRO.

Collection Method

Acquired using a Sea-Bird SBE911 CTD unit during a research voyage.

Time Range

May 01, 2024 to May 31, 2024

Freshness

Last updated 2026-06-27 16:21:52.049037; freshness should be verified.

Geography

Voyage departed from Hobart and returned to Sydney, covering the southeast Australian marine ecosystem.