Calibrated hyperspectral radiometer data from the Dynamic Above Water Radiance and Irradiance Collector (DALEC) deployed on research vessels RV Southern Surveyor and RV Solander. The dataset contains near-simultaneous spectral measurements of upwelling radiance, downwelling radiance, and downwelling irradiance, along with ancillary ship attitude data. Data collection began in July 2011 and is ongoing, subject to daylight hours and suitable sea conditions.
Use Cases
- Validate satellite ocean color products based on in-situ hyperspectral radiometer measurements.
- Model water column optical properties based on spectral upwelling radiance (Lu) and downwelling irradiance (Ed) data.
- Analyze the impact of ship motion on optical measurements based on ancillary pitch, roll, and gear position data.
- Study temporal changes in marine optical environments based on ongoing data collection since 2011.
Strengths
- Data collection began in July 2011 and is ongoing, providing a multi-year time series.
- Includes ancillary ship attitude data (pitch, roll, gear position) to contextualize optical measurements.
- Hyperspectral measurements cover three distinct optical variables: Lu, Lsky, and Ed.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data collection is limited to daylight hours and suitable sea conditions, introducing potential gaps.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Autonomous ship-based deployment of calibrated hyperspectral radiometers.
- Time Range
- July 2011 - ongoing
- Freshness
- Last updated 2026-05-05 21:29:48.615484; freshness should be verified.
- Geography
- Ocean areas traversed by RV Southern Surveyor and RV Solander.