Pre-Flood Vapor Canopy Radiative Temperature Profiles

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by David E. Rush, M.S. and Larry Vardiman, Ph.D.

Presented at the Second International Conference on Creationism, Pittsburgh, Pennsylvania, July 30–August 4, 1990 and published in: Proceedings of the Second International Conference on Creationism, R. E. Walsh & C. L. Brooks (Eds.), pp. 231–240, 1990.

© 1990 Creation Science Fellowship, Inc., Pittsburgh, PA, USA. Published with permission. All rights reserved.


Using a widely accepted radiance program, temperature profiles for various pre-Flood vapor canopies are calculated. The profiles are for pure radiative equilibrium, with no clouds or convective adjustments. This is the first step in answering the question, “Could a vapor canopy have provided a worldwide climate suitable for human habitation?” It is found that water vapor canopies ranging in size from 10 to 1013 mb produce temperatures at the canopy base hot enough to maintain water in the vapor phase, and hence ensure a stable canopy. However, canopies in the range from 50 to 1013 mb, and perhaps even canopies from 10 to 50 mb, also produce inhospitably high surface temperatures. The addition of clouds in future work would appear to hold promise of modifying these conclusions greatly.


Temperature Profiles, Pre-Flood Vapor Canopy, Radiative Equilibrium, Radiation Models, Clouds, Heat Balance

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