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Meanings and definitions for IASI
What does IASI stand for? What does IASI mean?
- The infrared atmospheric sounding interferometer (IASI) is a Fourier transform spectrometer based on the Michelson interferometer, associated with an integrated imaging system (IIS).As part of the payload of the MetOp series of polar-orbiting meteorological satellites, there are currently two IASI instruments in operation: on MetOp-A (launched 19 October 2006) and on Met-Op B (launched 17 September 2012) with the third due for launch in 2018.IASI is a nadir-viewing instrument recording infrared emission spectra from 645 to 2760 cm−1 at 0.25 cm−1 resolution (0.5 cm−1 after apodisation).
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