Abstract
The spectral interval centered at 899 cm−1 with a bandpass of 8.75 cm−1 is used for the measurements of surface and cloud-top temperatures from an altitude of 30 km. The continuum and selective absorption contribution to such measurements are discussed. The observations were obtained, using a balloon flight spectrometer, on two occasions: once from Palestine, Texas, in a tropical humid air mass, and once from Sioux Falls, South Dakota, in a cold arctic air mass. The results from these observations are compared with the screen temperatures under the balloon and with special surface temperature measurements made using a thermistor and a radiometer.
© 1967 Optical Society of America
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