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Instrument

UCATS
Uncrewed Aircraft Systems (UAS) Chromatograph for Atmospheric Trace Species

The Uncrewed Aircraft Systems (UAS) Chromatograph for Atmospheric Trace Species (UCATS) is an in situ airborne instrument suite that measures trace gases in the atmosphere. It consists of three separate instruments: a three-channel gas chromatograph (GC), a dual-beam ozone photometer (OZ), and a tunable diode laser (TDL) spectrometer. The GC measures nitrous oxide (N2O) and sulfur hexafluoride (SF6) every 70 s and measures hydrogen (H2), methane (CH4), and carbon monoxide (CO) every 140 s. The OZ sensor operates at 254 nm and provides ozone measurements every 10 seconds. The TDL spectrometer operates at 1370 nm and provides water vapor measurements every 1 s. UCATS was designed to be operated on UAS, but it has been deployed on piloted aircraft as well.

Image of the UCATS instrument
NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Instrument Details

Multi
Earth Science > Atmosphere > Air Quality > Carbon Monoxide
Earth Science > Atmosphere > Air Quality > Tropospheric Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Methane
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrous Oxide
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Monoxide
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds
Lower Stratosphere, Troposphere
1-140 s
Variable
219 THz, 1180 THz
External Linkhttps://doi.org/10.5194/amt-14-6795-2021

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns
CAMPAIGNS
Platforms
PLATFORMS
External Link10.3334/ORNLDAAC/1750
External Link10.5067/ASDC/DCOTSS-Aircraft-Data_1