IN2025_E01: Hydrology Data from RV Investigator Sea Trials

Hydrology data from the RV Investigator voyage IN2025_E01, collected between February 19 and March 01, 2025. The dataset contains processed measurements of salinity, dissolved oxygen, phosphate, silicate, nitrate plus nitrite, and ammonium from water samples taken at various depths during CTD deployments. It is archived by the CSIRO National Collections and Marine Infrastructure Information and Data Centre.

Use Cases

• Calibrating oceanographic sensors based on the processed salinity and temperature data.
• Analyzing nutrient distributions (phosphate, silicate, nitrate) in the water column.
• Studying dissolved oxygen levels for marine biogeochemical research.
• Validating CTD instrument performance using the quality-controlled hydrology samples.

Strengths

• Data has been processed and quality-controlled, as stated in the description.
• Covers multiple key oceanographic parameters: salinity, dissolved oxygen, and four nutrient types.
• Associated with specific voyage IN2025_E01 and has supporting voyage and data processing reports.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal and geographic bias inherent to the single voyage from Hobart.

Provenance

Source

Australian Ocean Data Network, collected via the Marine National Facility RV Investigator.

Collection Method

Samples collected from Niskin bottles at various depths during Conductivity-Temperature-Depth (CTD) deployments.

Time Range

February 19, 2025 to March 01, 2025 (AEST).

Freshness

Last updated 2026-06-27 16:41:39.034455; freshness should be verified.

Geography

Voyage departed from and returned to Hobart, Tasmania; specific sampling locations are not detailed.