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

Australian marine aerosol data from voyages starting in 2016, collected using a custom-built VH-TDMA instrument. The instrument, constructed at QUT, measures ultrafine aerosol volatility and hygroscopicity by selecting particles of specific diameters and conditioning them with a thermodenuder and humidifier. Data is provided by the Australian Ocean Data Network.

Use Cases

• Analyze aerosol volatility based on thermodenuder temperature settings mentioned in the description
• Study particle hygroscopic growth based on controlled relative humidity conditions described
• Investigate ambient aerosol size distributions based on selected particle diameters (e.g., 40, 100, 150 nm)
• Model the behavior of marine salts based on measurements of efflorescence relative humidity

Strengths

• Describes a purpose-built instrument with three electrostatic classifiers and two condensation particle counters
• Specifies common measurement parameters, such as thermodenuder set to 250 °C and relative humidity set to 90% RH
• Mentions specific particle diameters targeted for analysis (e.g., 40, 100, 150 nm)

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Description metadata is limited; actual data quality requires manual inspection after download

Provenance

Source

Australian Ocean Data Network

Collection Method

Data collected using a custom-built VH-TDMA instrument constructed at QUT, deployed on RV Investigator voyages.

Time Range

2016 onwards

Freshness

Last updated 2026-06-27 20:57:10.940115; freshness should be verified

Geography

Marine voyages, likely in Australian waters given the data source.