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Instrument

CAESR
Cold Atmospheric Emission Spectral Radiometer

The Cold Atmospheric Emission Spectral Radiometer (CAESR) is a balloon-borne scanning passive radiometer developed at the University of Denver. It measures thermal emission in the 7.5-12.6 μm spectral range. These measurements are used to derive nitric acid profiles (HNO3) up to 30 km with an effective vertical resolution of 1.5 km. CAESR can complete a scan in less than 10 seconds and has a field of view of about 1.5 degrees.

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 > Nitrogen Compounds > Nitric Acid
Earth Science > Spectral/engineering > Infrared Wavelengths > Thermal Infrared
Full Column Profile
10 s
1.5 km
24-40 THz
https://doi.org/10.1029/93GL01056External Link
  • Frank Murcray

  • Frank Murcray

  • University of Denver

  • NASA, NSF

  • Overview PublicationExternal Link