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Instrument

DFGAS
Difference Frequency Generation Absorption Spectrometer

The Difference Frequency Generation Absorption Spectrometer is an instrument designed to measure formaldehyde in the atmosphere. It measures the gas using an infrared laser. The instrument uses two lasers that operate at 1562nm and 1083nm. The instrument was used in multiple campaigns, and has since been replaced by the Compact Atmospheric Multispecies Spectrometer (CAMS).

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

Spectrometer/Radiometer
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Formaldehyde
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Troposphere
60-120s
100m
192 THz, 277 THz
https://doi.org/10.1007/s00340-006-2300-4External Link
  • Dirk Richter, Alan Fried

  • Alan Fried

  • NCAR

  • NASA, NOAA, NSF

  • Currently unavailable

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