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Instrument

ICOS
Integrated Cavity Output Spectrometer

The Integrated Cavity Output Spectrometer (ICOS) is an airborne in situ spectrometer developed by Harvard University. It is a mid-infrared (6.7 μm) spectrometer that measures the primary isotopologues of water vapor in the upper troposphere and lower stratosphere. It has been integrated onto NASA’s WB-57 aircraft for field investigations of water vapor. It has an average data acquisition rate of 1 Hz and a measurement precision of 0.14 ppbv in 4-second averages for water vapor.

Image of the Harvard ICOS 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

Spectrometer/Radiometer
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor
Lower Stratosphere, Troposphere
1 Hz
Point
44.7 THz
https://doi.org/10.1063/1.3117349External Link
  • Jessica Smith, David Sayres

  • David Sayres

  • Harvard University

  • Currently unavailable

  • Overview PublicationExternal Link