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SOCRATES: NCAR HCR radar and GV-HSRL lidar moments data


HIAPER Cloud Radar (HCR) and High Spectral Resolution Lidar (HSRL) moments data collected during the SOCRATES (Southern Ocean Clouds, Radiation, Aerosol Transport Experimental Study) project from 15 January 2018 to 24 February 2018. The data have a 2Hz time and 19m range resolution and are available in CfRadial format. This data set contains only the HCR and HSRL variables considered most useful for the general scientific user. Note that data is only provided when the two instruments were pointing roughly in the same direction. Data sets containing more variables and higher resolution data are available at the links provided in the "Related links" section below.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2018-10-04)
  • 2.0 (2020-05-08):

    HCR data was re-processed with new QC protocol. Reanalysis data was added.

  • 3.0 (2022-01-14):

    De-aliased velocity, melting layer altitude, convective/stratiform echo type, and particle identification were added.

  • 3.1 (2022-10-21):

    Improved bias correction for zenith pointing Doppler velocity.

  • 3.2 (2023-11-03):

    Improved echo type and melting layer fields.

(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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Related projects
Spatial Type point
Frequency continuous
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2018-01-15 21:00:00
End datetime 2018-02-24 09:00:00

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: -42.00, Minimum (South) Latitude: -63.00
Minimum (West) Longitude: 133.00, Maximum (East) Longitude: 164.00

Primary point of contact information

EOL Data Support <>

Additional contact information


NCAR/EOL HCR Team, NCAR/EOL HSRL Team. 2023. SOCRATES: NCAR HCR radar and GV-HSRL lidar moments data. Version 3.2. UCAR/NCAR - Earth Observing Laboratory. Accessed 21 Jul 2024.

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Ancillary information

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