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ORCAS Advanced Whole Air Sampler (AWAS) Data


This data set contains Advanced Whole Air Sampler (AWAS) data collected by the NSF/NCAR GV HIAPER (Gulfstream-V High-performance Instrumented Airborne Platform for Environmental Research) aircraft (Tail Number N677F) during the ORCAS (O2/N2 Ratio and CO2 Airborne Southern Ocean Study) campaign. The AWAS collects air samples in stainless steel canisters for later analysis for a wide variety of trace gases. The analysis was conducted with a gas chromatogaph/mass spectrometer/FID/ECD combination instrument to measure a range of chlorofluorocarbons, hydrochlorofluorocarbons, halomethanes and haloethanes, C2-C8 non-methane hydrocarbons, C1 – C5 alkyl nitrates, and selected sulfur compounds. Data are in ICARTT format, one file per research flight.

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Additional information

Data Quality final
  • 1.0 (2017-03-16):

    Final release data.

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Related projects
Spatial Type unknown
Frequency criteria
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2016-01-05 00:00:00
End datetime 2016-02-29 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: -30.00, Minimum (South) Latitude: -80.00
Minimum (West) Longitude: -105.00, Maximum (East) Longitude: -30.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Atlas, E. 2017. ORCAS Advanced Whole Air Sampler (AWAS) Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 24 May 2024.

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