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During PECAN, Colorado State University (CSU) and the NOAA/National Severe Storms Laboratory in conjunction with North Carolina State University (NCSU) operated three Mobile GPS Advanced Upper-Air Sounding (MGAUS) radiosonde systems that released soundings during PECAN Intensive Observation Periods (IOP) around the central United States. During the IOPs, the MGAUS soundings would typically be released starting after 00 UTC and continue during the nights operations. A total of 251 (CSU-84, NSSL1-83, and NSSL2-84) quality-controlled, high vertical resolution (1-second) soundings are contained in the final PECAN data set.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2016-01-20)
  • 2.0 (2016-03-07):

    Adding NSSL data in EOL format.

  • 2.1 (2016-03-11):

    The NSSL2 sounding: D20150709_061908_QC.eol has been corrected to fix surface geopotential altitudes.

  • 3.0 (2016-03-16):

    Adding NSSL data in ESC format.

(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 criteria
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2015-06-02 00:00:00
End datetime 2015-07-17 05:29:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 43.971, Minimum (South) Latitude: 35.005
Minimum (West) Longitude: -101.399, Maximum (East) Longitude: -87.003

Primary point of contact information

EOL Data Support <>

Additional contact information


Ziegler, C., et al. 2016. PECAN: CSU/NCSU/NSSL MGAUS Radiosonde Data. Version 3.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 23 Jul 2024.

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