Southern Hemisphere Ocean Biogeochemical Float Measurements

Southern Hemisphere observations from Biogeochemical Argo profiling floats deployed on RV Investigator voyages. The data comprises high-resolution measurements of ocean physical and biogeochemical properties, supporting investigations into the biological carbon pump, CO₂ uptake, and ocean acidification. It provides essential in situ data for validating satellite-based ocean color products.

Use Cases

• Analyze variability in the ocean's biological carbon pump using measurements of chlorophyll fluorescence and particulate backscatter.
• Investigate long-term trends in ocean deoxygenation and acidification with dissolved oxygen and pH data.
• Validate satellite-based biogeochemical products by comparing them with in situ dissolved nitrate and incoming solar radiation measurements.
• Study the uptake of anthropogenic CO₂ by the ocean using profiles of temperature and salinity alongside biogeochemical variables.

Strengths

• Data contributes to sustained ocean observing efforts, specifically improving spatial and temporal coverage in the Southern Hemisphere.
• Includes high-resolution measurements of multiple key biogeochemical variables such as dissolved oxygen, pH, and chlorophyll fluorescence.
• Supports validation of satellite-based ocean color products by providing essential in situ observations.

Limitations

• Specific row count, column count, and temporal coverage are unknown from the provided input.
• File formats include HTML and PNG, which may not be the most accessible for direct quantitative analysis without data extraction.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

Observations collected from Biogeochemical Argo (BGC-Argo) profiling floats deployed during RV Investigator voyages.

Time Range

null

Freshness

Last updated March 25,, 2026.

Geography

Southern Hemisphere