Abstract

Ozone, chlorine monoxide, methane, and submicron particulate concentrations were measured in the stratospheric plume wake of a Delta II rocket powered by a combination of solid (NH4ClO4/Al) and liquid (LOX/kerosene) propulsion systems. We apply a simple kinetics model describing the main features of gas-phase chlorine reactions in solid propellant exhaust plumes to derive the abundance of total reactive chlorine in the plume and estimate the associated cumulative ozone loss. Measured ozone loss during two plume encounters (12 and 39 minutes after launch) exceeded the estimate by about a factor of about two. Insofar as only the most significant gas-phase chlorine reactions are included in the calculation, these results suggest that additional plume wake chemical processes or emissions other than reactive chlorine from the Delta II propulsion system affect ozone levels in the plume.

Department(s)

Physics

Second Department

Chemistry

Keywords and Phrases

Ozone Depletion; Space Technology; Exhaust Gases; Liquid Propellants; Methane; Ozone Layer; Solid Propellants; Chlorine; Gas Emissions; Gases; Ozone Layer; Propulsion; Rockets; Solid Propellants; Wakes; Rocket Emissions; Stratospheric Ozone Depletion

Library of Congress Subject Headings

Propulsion systems

International Standard Serial Number (ISSN)

0094-8276

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2000 American Geophysical Union (AGU), All rights reserved.

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