An extension of Professor Rupert Wildt's analysis of the greenhouse effect for idealized planetary atmospheres of infinite depth to atmospheres of finite thickness and to other cases. Earlier RAND work in integral equations is used to extend the problem. An initial-value problem for the basic integral equation for the source function is obtained, an effective numerical procedure for solving this initial-value problem is described, and some computational results, obtained through the use of a digital computer, are presented.
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