HIPPO-2 Airborne Oxygen Instrument (AO2)

The NCAR Airborne Oxygen Instrument (AO2) was mounted on the NCAR GV during the HIPPO-2 project. The submitted AO2 data are in 1 flat ascii text file per flight. Each file contains running 10-second medians (of the original ~ 2.5-second data) at 1 Hz matching the times in the RAF data files. The files are in NASA Ames 1001 format, with a final comment line of variable names (UT CO2_AO2orig O2_AO2orig APO_AO2orig CO2_AO2 O2_AO2 APO_AO2), spaces separating columns, and 9999.99 for missing data. The reported times correspond to when the air entered the inlet. This instrument measures O2/N2 ratio as well as CO2 concentration.

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Questions? Email Resource Support Contact:

  • EOL Data Support
    UCAR/NCAR - Earth Observing Laboratory

Temporal Range

  • Begin:  2009-10-20T00:00:00Z
    End:  2009-11-22T23:59:59Z


Resource Type dataset
Temporal Range Begin 2009-10-20T00:00:00Z
Temporal Range End 2009-11-22T23:59:59Z
Temporal Resolution N/A
Bounding Box North Lat 85.00000
Bounding Box South Lat -65.00000
Bounding Box West Long -170.00000
Bounding Box East Long -80.00000
Spatial Representation grid
Spatial Resolution N/A
Related Links

Documentation #1 : AO2_readme_210126.pdf

112.005 : is a companion to dataset 117.082

112.134 : is a companion to dataset 117.082

Additional Information N/A
Resource Format NASA Ames Format for Data Exchange (text/plain)
Standardized Resource Format ASCII
Asset Size 16 MB
Legal Constraints

These data are restricted by a user agreement: https://data.eol.ucar.edu//file/download/426CE13C8CE5/fair-use.html

Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization UCAR/NCAR - Earth Observing Laboratory
Distributor UCAR/NCAR - Earth Observing Laboratory
Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
Metadata Contact Organization UCAR/NCAR - Earth Observing Laboratory

Author Britton B. Stephens
Ralph F. Keeling
Jonathan Bent
Andrew Watt
Stephen R. Shertz
William Paplawsky
Publisher UCAR/NCAR - Earth Observing Laboratory
Publication Date 2021-01-29T16:51:24
Digital Object Identifier (DOI) https://doi.org/10.5065/D65Q4TF0
Alternate Identifier 117.082
Resource Version 2.0
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2024-02-07T22:52:37Z
Metadata Record Identifier edu.ucar.eol::117.082
Metadata Language eng; USA
Suggested Citation Britton B. Stephens, Ralph F. Keeling, Jonathan Bent, Andrew Watt, Stephen R. Shertz, William Paplawsky. (2021). HIPPO-2 Airborne Oxygen Instrument (AO2). 2.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D65Q4TF0. Accessed 15 July 2024.

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