1. Observing Atmospheric Radiation 2. Spectral Concepts 3. Instrument Responsivity and Superiority 4. Imaging Concepts 5. The Fabry-Perot Spectrometer 6. The Michelson Interferometer 7. Multiplexers and Modulators 8. Doppler Michelson Interferometry 9. Operational Atmospheric Spectral Imagers 10. Future Atmospheric Spectral Imagers 11. Grating Spectrometers as Spectral Imagers
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