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This data set contains CU CIMS perhydroxyl radical (HO2), HO2+RO2 data collected during the Southeast Atmosphere Study (SAS) from 30 May 2013 through 17 July 2013.

These data were collected using our 4-channel CIMS instrument. An inlet collects ambient air from the free air stream and adds reagents, including oxygen (O2) or nitrogen gas (N2) diluents, and nitric oxide (NO) and sulfur dioxide (SO2) reagent gases.

As of 27 October 2014, flights RF06, RF12, RF13, RF14, RF18, RF19 have been updated to R3 version of the data. The files for flights RF08, RF10, RF11, RF15, RF16, RF17 contain R2 data. The R2 files incorrectly show the data time column as MST but should be UTC. There are no data for flights RF01 - 05, RF07, and RF09.

This data set is in ICARTT format. Please see the header portion of the data files for details on instruments, parameters, quality assurance, quality control, contact information, and data set comments.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2014-02-03)
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Related projects
Spatial Type point
Frequency 1 minute
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2013-05-30 00:00:00
End datetime 2013-07-17 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 45.00, Minimum (South) Latitude: 24.00
Minimum (West) Longitude: -105.00, Maximum (East) Longitude: -72.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Cantrell, C., Mauldin, R., Williams, S. 2014. SAS: CU CIMS HO2, HO2+RO2. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 24 Jun 2024.

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Ancillary information

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