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The Satellite Infrared Spectrometer (SIRS) on the Nimbus III satellite was designed to measure the earth's spectral radiances in the 15-microm band of carbon dioxide. From simultaneous measurements of spectral radiances it is possible to obtain the vertical temperature profile of the atmosphere. The measurements are approximated by the integral equation of(More)
—An analysis of published midday absorption data obtained by the reflection method of vertical incidence sounding quantitatively establishes the existence of an equatorial absorption anomaly. This anomaly is the abnormally large variation of the amplitude of the seasonal variation observed at equatorial latitudes. It is suggested that certain D-region(More)
Observations in the spectral window at 11-12 microm, in the carbon dioxide band at 13.3-13.4 microm, and in the water vapor rotation band at 18.7-18.8 microm have been made by the satellite infrared spectrometer and the vertical temperature profile radiometer on the Nimbus 4 and NOAA-2 satellites. Combinations of radiances measured by the separate(More)
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