The Chlorophyll​ Fluorescence Imaging Spectrometer (CFIS) was built for evaluating solar-induced fluorescence (SIF) from the Orbiting Carbon Observatory-2 (OCO-2) satellite. It is a high-resolution imaging spectrometer, optimized for remote sensing of chlorophyll fluorescence.

OCO-2 is a NASA mission designed to measure atmospheric CO2 but one of the novel data products is SIF, retrieved using reductions in the optical depth of Fraunhofer lines in OCO-2’s O2 Aband, covering 757–775 nm at 0.042 nm spectral resolution. CFIS was specifically designed to retrieve SIF within the wavelength range of OCO-2, but extends further down to 737 nm, nearly maintaining the high spectral resolution of the OCO-2 instrument (0.07 vs. 0.042 nm).

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Instrument specifics

• Status: ACTIVE
• Type: Imaging spectrometer
• Maps far red T fluorescence

Platform(s)

• Twin Otter

Products

Brief description of data and science, use bullets if needed

Campaigns flown

• OCO-2 Validation

Contact

Christain Frankenberg

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