IN2023_V06: Hyperspectral Ocean Particulate Absorption and Attenuation

From October 8th to November 1st 2023, this dataset contains hyperspectral measurements of particulate absorption, attenuation, and scatter coefficients from the East Australian Current region. Data was collected by the Australian Ocean Data Network using a Wetlabs Absorption and Attenuation Sensor (ACS) aboard the RV Investigator, binned to 30-second intervals. The methodology for data acquisition and cleaning is described in a referenced 2026 publication.

Use Cases

• Modeling light attenuation in surface waters based on hyperspectral particulate absorption data.
• Studying phytoplankton community composition and biomass based on spectral absorption signatures.
• Analyzing mesoscale eddy and frontal feature impacts on ocean optics based on the voyage's sampling focus.
• Calibrating satellite ocean color algorithms based on in-situ hyperspectral measurements from 400-735 nm.

Strengths

• High temporal resolution with raw measurements at 25 Hz, later binned to 30-second intervals.
• High spectral resolution with measurements across 87 wavelengths from 400 to 735 nm.
• Data is aligned with the ship's underway system, providing contextual environmental data.
• Methodology for data acquisition and cleaning is documented in a referenced 2026 publication.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Data may reflect geographic and temporal bias inherent to the specific 2023 voyage in the East Australian Current.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Continuous measurement via a shipboard Wetlabs ACS sensor through the ship's underway system.

Time Range

October 8th to November 1st, 2023.

Freshness

Last updated 2026-04-28 22:50:00.903883; freshness should be verified.

Geography

East Australian Current region, sampled during voyage IN2023_V06 aboard the RV Investigator.