RV Investigator Ultrafine Aerosol Volatility and Hygroscopicity (VH-TDMA) - Selected Voyag

Instrument data from the VH-TDMA, a custom-built device for measuring ultrafine aerosol volatility and hygroscopicity aboard the RV Investigator. The dataset includes measurements from selected voyages starting in 2016, with the instrument cycling through particle diameters like 40, 100, and 150 nm and using a thermodenuder set to 250 °C. Data was collected by the Australian Ocean Data Network and last updated in June 2026.

Use Cases

• Modeling aerosol hygroscopic growth based on relative humidity conditioning data mentioned in the description
• Analyzing particle volatility trends based on thermodenuder temperature settings (e.g., 150°C, 200°C, 250°C)
• Studying the size distribution of marine aerosols based on selected particle diameters (e.g., 20, 30, 60, 80, 100, 150 nm)
• Investigating the deliquescence behavior of ambient particles based on controlled humidity scans

Strengths

• Data is collected using a purpose-built instrument (VH-TDMA) with three electrostatic classifiers and two condensation particle counters
• Description provides specific operational parameters, such as commonly used particle diameters (40, 100, 150 nm) and a primary thermodenuder temperature of 250 °C
• Includes measurements from multiple voyages over a time range starting in 2016

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 data_gov_au and the specific voyages of the RV Investigator

Provenance

Source

Australian Ocean Data Network

Collection Method

Instrument measurements from the VH-TDMA device aboard the RV Investigator research vessel.

Time Range

2016 onwards

Freshness

Last updated 2026-06-23 04:54:28.323847; freshness should be verified

Geography

Marine environments covered by RV Investigator voyages; specific locations are not detailed.