The global distribution of tropospheric ozone (O3) can be observed from a satellite-based instrument by spectrally isolating the pressure-broadened wings of strong O3 lines. The Fabry–Perot interferometer (FPI) provides high spectral resolution and high-throughput capabilities that are essential for performing such a measurement. Through proper selection of channel spectral regions, the FPI optimized for tropospheric O3 measurements can simultaneously observe a stratospheric component and thus the total O3 column abundance. We present a conceptual instrument design that involves a double-etalon fixed-gap series configuration FPI along with an ultranarrow bandpass filter to achieve single-order operation with an overall spectral resolution of approximately 0.068 cm-1, sampling the narrow 1054.2–1055.2 cm-1 spectral region within the strong 9.6-μm ozone infrared band from a nadir-viewing satellite configuration.
© 1998 Optical Society of America
(010.1280) Atmospheric and oceanic optics : Atmospheric composition
(010.4950) Atmospheric and oceanic optics : Ozone
(010.7030) Atmospheric and oceanic optics : Troposphere
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(280.1120) Remote sensing and sensors : Air pollution monitoring
Allen M. Larar, Paul B. Hays, and S. Roland Drayson, "Global Tropospheric and Total Ozone Monitoring with a Double-Etalon Fabry-Perot Interferometer. I. Instrument Concept," Appl. Opt. 37, 4721-4731 (1998)