Carbon isotopic composition measurements for three species of planktonic foraminifera collected from sediment traps in the Southern Ocean. The data, likely from the Australian Ocean Data Network, allows comparison of seasonal d13C with dissolved inorganic carbon to determine disequilibrium effects across latitudes. The records provide evidence for the oceanic Suess effect and surface water-atmosphere equilibration in the Subantarctic Zone.
Use Cases
- Modeling the oceanic Suess effect based on modern depletion in d13C between sediment traps and core tops.
- Analyzing latitudinal trends in isotopic disequilibrium between foraminifera and dissolved inorganic carbon.
- Investigating the relationship between temperature and isotopic disequilibrium in Globigerina bulloides.
- Using corrected d13C of Globigerina bulloides as a nutrient tracer in Southern Ocean environments.
- Comparing field-derived disequilibrium-temperature relationships with laboratory-based calibrations.
Strengths
- Data includes measurements for three distinct species of planktonic foraminifera.
- Records represent annual flux across Subtropical to Polar Frontal environments.
- Description details a specific comparison with laboratory relationships from Bemis et al. [2000].
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Freshness should be verified; last updated metadata indicates a future date of 2026-05-05.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Likely collected from sediment traps deployed in the western Pacific/Southern Australia sector.
- Geography
- Southern Ocean, specifically the western Pacific/Southern Australia sector from Subtropical to Polar Frontal environments.