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Chemistry of the 1991–1992 stratospheric winter: Three‐dimensional model simulations

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·1994·Journal of Geophysical Research: Atmospheres

Abstract

A three‐dimensional chemistry‐transport model of the stratosphere is used to simulate the evolution of trace constituents during the 1991–1992 Arctic winter. It is shown that heterogeneous reactions on polar stratospheric clouds led in early January to almost complete activation of atmospheric chlorine inside the polar vortex, in remarkable coincidence with observations by the ER‐2 aircraft (Toohey et al., 1993) and the microwave limb sounder on the Upper Atmosphere Research Satellite (Waters et al., 1993). Sulfate aerosols resulting from the eruption of Mount Pinatubo also produced a significant increase in chlorine monoxide (ClO) concentrations at middle and high latitudes. The net chemical destruction of ozone found in the vortex at the end of the simulation (25% at 50 hPa and 25 DU), although substantial, was limited by available sunlight and the short period during which stratospheric clouds occurred.

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Metadata

Venue
Journal of Geophysical Research: Atmospheres
Published
1994-04-20
Volume
99
Issue
D4
Pages
8183-8195
ISSN
0148-0227 (ISSN-L)
OpenAlex
W1975290697
Cited by
320
References
0
FWCI
10.27
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Chemistry of the 1991–1992 stratospheric winter: Three‐dimensional model simulations. https://app.cochat.ai/papers/10.1029/93jd03476
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Chemistry of the 1991–1992 stratospheric winter: Three‐dimensional model simulations. (1994). Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/93jd03476

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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