Arrow leftBack to Explore

Instrument

CAFS
Charged-coupled device (CCD) Actinic Flux Spectroradiometers

The Charged-couple device (CCD) Actinic Flux Spectroradiometer (CAFS) is an in situ airborne spectroradiometer developed by the Atmospheric Radiation Investigations and Measurements (ARIM) laboratory at NCAR. CAFS measures spectrally resolved ultraviolet and visible actinic flux between 280-650 nm. These measurements can be used to derive the photolysis frequencies for several chemical compounds such as ozone, nitrogen dioxide, formaldehyde, and nitrate. CAFS has a temporal resolution of 1 Hz and a wavelength resolution of about 1.8 nm at 297 nm.

Image of the CAFS 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 Chemistry > Carbon And Hydrocarbon Compounds > Formaldehyde
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Bromine Monoxide
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Chlorine Monoxide
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Chlorine Nitrate
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Dinitrogen Pentoxide
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Acid
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Dioxide
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Peroxyacyl Nitrate
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Photochemistry > Photolysis Rates
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Radiation > Actinic Flux
Lower Stratosphere, Troposphere
1 Hz
Point
461-1071 THz
External Linkhttps://doi.org/10.1029/98JD01381

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns
CAMPAIGNS
Platforms
PLATFORMS
External Link10.3334/ORNLDAAC/1651
External Link10.3334/ORNLDAAC/1714