Chlorophyll a concentration data was collected during the Aurora Australis SAZ cruise in March 1998. The dataset supports research on the role of Antarctic marine protists in ecosystem dynamics and global change. Data collection was part of the Australian Antarctic Division's ASAC project 40.
Use Cases
- Analyzing chlorophyll a concentration gradients across the Subantarctic Zone sampling stations.
- Correlating phytoplankton biomass (via chlorophyll a) with seasonal conditions during the austral autumn of 1998.
- Validating satellite-derived ocean color data for the Southern Ocean using in-situ chlorophyll a measurements.
Strengths
- Data originates from a dedicated scientific research voyage (Aurora Australis Voyage 6) in a key polar region.
- Specific temporal context provided for sample collection (March 1998).
- Linked to a defined research program (ASAC project 40) with clear scientific objectives.
Limitations
- Sample size and spatial resolution are unknown, likely representing a limited snapshot.
- Data is over 25 years old, limiting analysis of contemporary oceanographic conditions.
- Lack of column details prevents assessment of accompanying metadata like depth, sampling method, or ancillary measurements.
Provenance
- Source
- Australian Antarctic Data Centre (AU_AADC), via NASA Earthdata.
- Collection Method
- In-situ samples collected from the ocean during a research cruise.
- Time Range
- March 1998.
- Freshness
- Last updated 1998-03-28; static historical dataset.
- Geography
- Subantarctic Zone, Southern Ocean, along the Aurora Australis Voyage 6 cruise track.