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

The RV Investigator Ultrafine Aerosol Volatility and Hygroscopicity (VH-TDMA) dataset contains measurements from selected voyages starting in 2016. The data was collected by the Australian Ocean Data Network using a custom-built instrument from QUT that conditions and re-measures particle diameters. The dataset includes information on particle diameters, thermodenuder temperatures, and relative humidity settings.

Use Cases

• Modeling aerosol particle growth and shrinkage based on volatility and hygroscopicity measurements.
• Analyzing the size distribution of ambient ultrafine particles based on the described diameter cycling.
• Studying the deliquescence behavior of marine salt particles based on controlled relative humidity settings.

Strengths

• Instrument details are explicitly described, including the use of three electrostatic classifiers and two condensation particle counters.
• Specific measurement parameters are provided, such as common particle diameters (40, 100, 150 nm) and a primary thermodenuder temperature of 250 °C.
• Data collection is associated with a specific research vessel (RV Investigator) and voyages from 2016 onwards.

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 the specific voyages described.

Provenance

Source

Australian Ocean Data Network

Collection Method

Measurements taken using a VH-TDMA (Volatility-Hygroscopicity Tandem Differential Mobility Analyzer) instrument constructed at QUT aboard the RV Investigator.

Time Range

2016 onwards

Freshness

Last updated 2026-05-04 23:19:36.897952; freshness should be verified.

Geography

Marine environments covered by RV Investigator voyages.