The NCAR Airborne Oxygen Instrument (AO2) is an in situ airborne instrument that measures oxygen (O2) concentrations in the atmosphere. It determines these concentrations using the vacuum-ultraviolet absorption technique. AO2 can also measure carbon dioxide (CO2) concentrations. During typical flight speeds of 300 knots, AO2 offers a horizontal resolution of 750 meters and a vertical resolution of 40 meters for 5-second measurements. Its usual sampling rate is 2.5 seconds.
Instrument Details
- Meter/Analyzer
- Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Molecular OxygenEarth Science > Atmosphere > Atmospheric ChemistryEarth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Dioxide
- Troposphere
- 2.5 s
- 750 m (horizontal), 40 m (vertical)
- N/A
- https://doi.org/10.5194/amt-14-2543-2021
Britton Stephens
Britton Stephens
NCAR
NCAR
data center outside NASA
 Douglas DC-8 43 Campaigns · 180 Instruments |  Atmospheric Tomography Mission 2016—2018 Western Arctic, South Pacific, Atlantic Ocean, Greenland, Central North America 4 Deployments · 41 Data Products
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