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Recent Advances in Submillimeter Remote Sensing and Analysis

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Abstract

The spectral region of submillimeter-waves (from 10 cm-1 to 200 cm-1) has proven to be suitable for the remote sensing of the atmosphere in terms of the number of species that can be observed, the intensity of the transitions that produce spectral features, and the diurnal coverage of the emission measurements that can be obtained. Fourier Transform spectrometers have been built for this purpose at the Istituto di Ricerca sulle Onde Elettromagnetiche (IROE) [1] and at the Smithsonian Astrophysical Observatory (SAO) [2]. Both instruments had several successful flights in which they measured the emission of the atmosphere, from a balloon-borne platform, with the limb-scanning observation technique. The analysis of the spectra has two main objectives:

i) identification of atmospheric constituents through the assignment of the observed spectral features to specific transitions,

ii) determination of the altitude distribution (profile) of the molecules that have been identified.

© 1995 Optical Society of America

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