MISO: Southern Ocean Aerosol Chemistry Measurements from 2024 Voyage

MISO - Real-time aerosol chemistry measurements (ToF-ACSM) from the RV Investigator voyage IN2024_V01 presents the composition of non-refractory aerosols, including nitrate, ammonium, sulfate, organics, chloride, and sea salt. The dataset was collected by the Australian Ocean Data Network during a voyage from 2 January to 5 March 2024 in the Southern Ocean. It provides high-resolution, real-time measurements aimed at understanding aerosol roles in climate dynamics and biogeochemical cycles.

Use Cases

• Modeling aerosol-cloud interactions based on high-resolution chemical speciation data.
• Analyzing seasonal biogeochemical cycles in the Southern Ocean based on aerosol composition time series.
• Studying ocean-atmosphere exchange processes based on measured sea salt and organic aerosol fractions.
• Investigating climate dynamics based on the role of nitrate, sulfate, and ammonium aerosols.

Strengths

• High-resolution, real-time measurements of aerosol species.
• Specific temporal coverage from 2 January to 5 March 2024.
• Focus on the critical Southern Ocean region for climate studies.
• Measures multiple specific chemical components: nitrate, ammonium, sulfate, organics, chloride, and sea salt.

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 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 2026-04-10 18:01:45.262881; freshness should be verified.

Geography

Southern Ocean, voyage from Hobart to Fremantle.