IMG, interferometric measurement of greenhouse gases from space

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Abstract

A Michelson interferometer is under development as a payload of the ADEOS satellite. It will measure the spectra of terrestrial thermal infrared radiation with a nadir view in 700–3,000 cm−1 wavenumber region with an apodized resolution of 0.1 cm−1. Using those measured spectra, we will retrieve the altitude profiles of atmospheric temperature and the concentrations of greenhouse gases such as H2O, CO2, CH4, N2O, CO and O3. Our final goal is to observe horizontal structure in greenhouse gas concentrations and to infer the global distribution of the emission sources of greenhouse gases.

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