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

Volatility and hygroscopicity measurements of ultrafine aerosols collected aboard the RV Investigator from 2016 onwards. The dataset was generated using a VH-TDMA instrument constructed at QUT, which selects particles by electrical mobility diameter, conditions them with a thermodenuder and humidifier, and re-measures their size. Data includes measurements for particle diameters such as 40, 100, and 150 nm, with thermodenuder temperatures set primarily to 250°C and relative humidity at 90%.

Use Cases

• Modeling aerosol growth and shrinkage based on volatility and hygroscopicity measurements.
• Analyzing particle size distribution changes under controlled temperature and humidity conditions.
• Studying the deliquescence behavior of ambient marine aerosol particles.
• Investigating the impact of aerosol properties on cloud formation processes in marine environments.

Strengths

• Instrument details are specified, including the use of three electrostatic classifiers and two condensation particle counters.
• Measurement parameters are described, including common particle diameters (40, 100, 150 nm) and a primary thermodenuder temperature of 250°C.
• Data collection spans multiple voyages from 2016 onwards, suggesting a temporal series.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• File formats listed are PNG and HTML, which may not contain the primary structured data.

Provenance

Source

Australian Ocean Data Network

Collection Method

Measurements taken aboard the RV Investigator using a custom-built VH-TDMA instrument.

Time Range

2016 onwards

Freshness

Last updated 2026-06-04 07:04:01.286934; freshness should be verified.

Geography

Marine environments, specific voyages not detailed.