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PLOWS: NSF/NCAR C-130 Dropsonde Data


During the second field phase of PLOWS (November 2009 to 10 March 2010) the NSF/NCAR C-130 aircraft released dropsondes over the north-central United States. Dropsondes were deployed ny NCAR/EOL during six research flights, of which 41 are included in this final quality controlled data set. These data are in a columnar ASCII format, the EOL sounding format.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2010-07-12)
  • 2.0 (2016-06-28):

    This dataset has been corrected for a temperature dependent dry bias and the filenames have been changed.  

  • 3.0 (2017-02-16):

    This data was corrected for a temperature dependent relative humidity and dewpoint dry bias.  This version is the most current version of the data.

(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
Frequency no set schedule
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2009-10-23 20:13:00
End datetime 2010-02-09 18:35:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 48.00, Minimum (South) Latitude: 40.00
Minimum (West) Longitude: -103.00, Maximum (East) Longitude: -88.00

Primary point of contact information

EOL Data Support <>


UCAR/NCAR - Earth Observing Laboratory. 2017. PLOWS: NSF/NCAR C-130 Dropsonde Data. Version 3.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 21 Jul 2024.

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Ancillary information

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