The Airborne Tunable Laser Absorption Spectrometer (ATLAS) is an in situ airborne spectrometer developed by NASA. ATLAS utilizes second-harmonic absorption spectrometry to measure trace gases in the lower stratosphere such as nitrous oxide, methane, carbon monoxide, and ozone. The laser within ATLAS is tuned to the infrared absorption band of the target gas and is frequency modulated at 2 kHz with the second-harmonic detection occurring at 4 kHz. ATLAS provides measurements at a time resolution of 1 s and has a spatial resolution of about 200 m when deployed on the ER-2 aircraft.
Instrument Details
- Spectrometer/Radiometer
- Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon MonoxideEarth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > OzoneEarth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > MethaneEarth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrous OxideEarth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace SpeciesEarth Science > Atmosphere > Atmospheric Chemistry
- Lower Stratosphere, Troposphere
- 1 s
- 200 m
- N/A
- https://doi.org/10.1364/AO.32.005324
Max Loewenstein, James Podolske
Max Loewenstein
NASA ARC
Currently unavailable
Unpublished
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