MISO: Southern Ocean Aerosol Chemistry Measurements from 2024 Voyage

The Southern Ocean region was the focus of the IN2024_V01 voyage from 2 January to 5 March 2024. This dataset presents real-time, high-resolution measurements of non-refractory aerosol composition, including nitrate, ammonium, sulfate, organics, chloride, and sea salt, collected by a Time-of-Flight Aerosol Chemical Speciation Monitor (ToF-ACSM) aboard the RV Investigator. The data were contributed by the Australian Ocean Data Network to support research on ocean-atmosphere interactions and climate dynamics.

Use Cases

• Modeling aerosol-cloud interactions based on real-time aerosol species measurements.
• Analyzing seasonal biogeochemical cycles based on high-resolution atmospheric chemistry data from a specific voyage.
• Studying ocean-atmosphere exchange processes based on aerosol composition data collected over the Southern Ocean.
• Investigating climate dynamics based on the relationship between aerosol species and regional atmospheric conditions.

Strengths

• Data provides high-resolution, real-time measurements of aerosol species.
• Measurements cover a defined temporal range from 2 January to 5 March 2024.
• Dataset focuses on the critical and data-sparse Southern Ocean region.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic/temporal bias inherent to a single research voyage.

Provenance

Source

Australian Ocean Data Network

Collection Method

Measured using a Time-of-Flight Aerosol Chemical Speciation Monitor (ToF-ACSM) aboard the RV Investigator.

Time Range

2 January to 5 March 2024 (AEST)

Freshness

Last updated 2026-04-28 12:24:33.382244; freshness should be verified

Geography

Southern Ocean, voyage from Hobart to Fremantle