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Balloon Observations of the Radiance of the Earth Between 2100 cm−1 and 2700 cm−1

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Abstract

A grating spectrometer capable of measuring small radiation fluxes with a spectral resolution of 95 at 4.3 μ is described. Bands of CO2, N2O, and O3 are identified in spectra between 2100 cm−1 and 2700 cm−1 of the earth and lower atmosphere obtained from an altitude of 30 km with this instrument. Scattering of solar radiation by clouds was observed between 2400 cm−1 and 2700 cm−1. A temperature profile of the atmosphere to 30 km determined from an analysis of the measurements in the region of the 4.3 μ CO2 band is compared with radiosonde observations made during the flight.

© 1967 Optical Society of America

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