Compact Airborne Formaldehyde Experiment

The NASA GSFC Compact Airborne Formaldehyde Experiment (CAFE) instrument measures formaldehyde (CH2O) on both pressurized and unpressurized (high-altitude) aircraft. Using non-resonant laser induced fluorescence (LIF), CAFE possesses the high sensitivity, fast time response, and dynamic range needed to observe CH2O throughout the troposphere and lower stratosphere.

Formaldehyde is produced via the oxidation of hydrocarbons, notably methane (a ubiquitous greenhouse gas) and isoprene (the primary hydrocarbon emitted by vegetation). Observations of CH2O can thus provide information on many atmospheric processes, including:
 - Convective transport of air from the surface to the upper troposphere
 - Emissions of reactive hydrocarbons from cities, forests, and fires
 - Atmospheric oxidizing capacity, which relates to formation of ozone and destruction of methane
In situ observations of CH2O are also crucial for validating retrievals from satellite instruments, such as OMI, TROPOMI, and TEMPO.

Instrument Type: 
DC-8 - AFRC, ER-2 - AFRC, C-23 Sherpa - WFF, HL5200 Hanseo University (NIER)
Point(s) of Contact: 

HL5200 Hanseo University (NIER) with DC-8 background

HU King Air Returns to Osan AB

HL5200 Hanseo University (NIER) with DC-8 overhead

HL5200 Hanseo University NIER - Up up... and away

HL5200 Hanseo University NIER - Airborne!

HL5200 Hanseo University NIER - Transiting to take off

HL5200 Hanseo University NIER - Pre-flight - from the port side

HL5200 Hanseo University NIER - Pre-flight 1


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