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NSF/NCAR GV HIAPER 2D-S Particle Size Distribution (PSD) Product Data



This data set contains the cloud particle size distributions (PSDs) and bulk properties data from the SPEC 2D-S probe that was flown on-board the NSF/NCAR HIAPER GV aircraft during the 15 flights for the SOCRATES (Southern Ocean Clouds, Radiation, Aerosol Transport Experimental Study) project over the Southern Ocean region from 15 January to 24 February 2018. The bulk properties include total number concentration, liquid water content, and ice water content. The data are in NetCDF4 format.

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Additional information

Data Quality final
  • 0.1 (2019-01-16)
  • 1.0 (2019-06-20):

    This version contains the final quality controlled data.

  • 1.1 (2019-09-25):

    This version fixed TAS issues on RF02 and RF06. The Nt and Nice variables in all flights in V1.0 was output incorrectly, and fixed in this version.

(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Language English
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Temporal coverage

Begin datetime 2018-01-15 00:00:00
End datetime 2018-02-24 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: -30.00, Minimum (South) Latitude: -70.00
Minimum (West) Longitude: 130.00, Maximum (East) Longitude: 180.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Wu, W., McFarquhar, G. 2019. NSF/NCAR GV HIAPER 2D-S Particle Size Distribution (PSD) Product Data. Version 1.1. UCAR/NCAR - Earth Observing Laboratory. Accessed 15 Jun 2024.

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