On the Relation Between TIROS Radiation Measurements and Atmospheric Infrared Cooling

Abstract
TIROS II channel 2 and channel 4 measurements of infrared radiation are statistically correlated with corresponding radiometersonde measurements of radiation divergence within various layers of the atmosphere. Estimates of the correlation coefficient greater than 0.60 are obtained for all layers extending from the surface of the earth to levels beyond 600 mb. The results of this study indicate that the satellite measured flux is most significantly related to the infrared cooling profile within the surface to 600-mb layer. It is shown that good estimates of the infrared cooling profile might be obtained from satellite measurements if the general sky condition is also known.

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