The Surface Temperature of Dry Ice, Solid CO2
DOI:
https://doi.org/10.54782/jwm.v19i1.393Abstract
A common misconception of dry ice temperature under cloud seeding operations has been pointed out. The widely known temperature of -78.2°C occurs only when the dry ice is under equilibrium with CO2 gas of 1 atmosphere. The temperature of falling dry ice pellets in air is decided by a steady state balance of heat conduction to and the CO2 gas diffusion from the surface. Under the free fall condition of cloud seeding, the temperature is about -100°C and is fairly insensitive to the pellet and the environmental conditions.
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Fukuta, N. (1987). The Surface Temperature of Dry Ice, Solid CO2. The Journal of Weather Modification, 19(1), 99–101. https://doi.org/10.54782/jwm.v19i1.393
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