title: Global tropospheric and total ozone monitoring with a double-etalon fabry-perot interferometer. I. Instrument concept.
abstract: The global distribution of tropospheric ozone (O(3)) can be observed from a satellite-based instrument by spectrally isolating the pressure-broadened wings of strong O(3) 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 O(3) measurements can simultaneously observe a stratospheric component and thus the total O(3) 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-mum ozone infrared band from a nadir-viewing satellite configuration.
authors.forename: A M
authors.initials: AM
authors.lastname: Larar
authors.forename: P B
authors.initials: PB
authors.lastname: Hays
authors.forename: S R
authors.initials: SR
authors.lastname: Drayson