Preliminary Assessment of the Potential Impact of Solid-Fueled Rocket Engines in the Stratosphere

R. C. Whitten Space Sciences Division, Ames Research Center, NASA, Moffett Field, Calif. 94035

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W. J. Borucki Space Sciences Division, Ames Research Center, NASA, Moffett Field, Calif. 94035

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I. G. Poppoff Space Sciences Division, Ames Research Center, NASA, Moffett Field, Calif. 94035

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R. P. Turco R and D Associates, Santa Monica, Calif. 90403

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Abstract

Free chlorine atoms produced from HCl deposited by solid-fueled rocket engines react to destroy odd oxygen in the stratosphere. Using a one-dimensional photochemical model, we have computed the reduction of ozone likely to be caused by long-term operation of such vehicles powered by large solid-fueled rocket engines. It is likely that ozone reduction will not be greater than a few tenths of a percent, although the value is dependent upon ambient NOx concentrations.

Abstract

Free chlorine atoms produced from HCl deposited by solid-fueled rocket engines react to destroy odd oxygen in the stratosphere. Using a one-dimensional photochemical model, we have computed the reduction of ozone likely to be caused by long-term operation of such vehicles powered by large solid-fueled rocket engines. It is likely that ozone reduction will not be greater than a few tenths of a percent, although the value is dependent upon ambient NOx concentrations.

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