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R/V Discoverer H-TDMA 075nm Aerosol Data (leg 1)



This dataset contains measurements from the Hygroscopic Tandem Differential Mobility Analyser (H-TDMA) aboard the NOAA R/V Discoverer during the ACE-1 voyage from Seattle, USA to Hobart, Australia. Measurements at 75 nm dry sizes were performed at 90% relative humidity. These data consist of date/time (UTC), relative humidity (DMA2), julian day, run no., dry size, lst hydroscopic peak parameters (aerosol fraction, beta factor, growth dispersion factor), 2nd and 3rd hydroscopic peak parameters (if observed), and latitude/longitude. This dataset was quality assured and fulfilled a number of criteria based mainly on temperature and relative humidity stability in DMA2 and influence from ship pollution.

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Related projects
Spatial Type point
Frequency no set schedule
Language English
GCMD Science Keywords Expand keywords

Temporal coverage

Begin datetime 1995-10-16 00:00:00
End datetime 1995-11-08 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 49.00, Minimum (South) Latitude: -43.00
Minimum (West) Longitude: 148.00, Maximum (East) Longitude: -126.00

Primary point of contact information

Erik Swietlicki <>

Additional contact information


Example citation following ESIP guidelines:

Swietlicki, E. 2006. R/V Discoverer H-TDMA 075nm Aerosol Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 28 May 2022.

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Ancillary information

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