DOI: 10.1126/science.261.5125.1134. The Seasonal Evolution of Reactive Chlorine in the Northern Hemisphere Stratosphere

The Seasonal Evolution of Reactive Chlorine in the Northern Hemisphere Stratosphere

10.1126/science.261.5125.1134

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

In situ measurements of chlorine monoxide (ClO) at mid- and high northern latitudes are reported for the period October 1991 to February 1992. As early as mid-December and throughout the winter, significant enhancements of this ozone-destroying radical were observed within the polar vortex shortly after temperatures dropped below 195 k. Decreases in ClO observed in February were consistent with the rapid formation of chlorine nitrate (ClONO 2 ) by recombination of ClO with nitrogen dioxide (NO 2 ) released photochemically from nitric acid (HNO 3 ). Outside the vortex, ClO abundances were higher than in previous years as a result of NO x suppression by heterogeneous reactions on sulfate aerosols enhanced by the eruption of Mount Pinatubo.

Bibliography

Toohey, D. W., Avallone, L. M., Lait, L. R., Newman, P. A., Schoeberl, M. R., Fahey, D. W., Woodbridge, E. L., & Anderson, J. G. (1993). The Seasonal Evolution of Reactive Chlorine in the Northern Hemisphere Stratosphere. Science, 261(5125), 1134â1136.

Authors 8

D. W. Toohey (first)
L. M. Avallone (additional)
L. R. Lait (additional)
P. A. Newman (additional)
M. R. Schoeberl (additional)
D. W. Fahey (additional)
E. L. Woodbridge (additional)
J. G. Anderson (additional)

References 18 Referenced 66

Albritton D. L. Scientific assessment of ozone depletion: 1991 Global Ozone Research and Monitoring Project Report 25 (1991).
10.1126/science.251.4989.39
Avallone, L. M., Geophysical Research Letters 17: 1795 (1993). / Geophysical Research Letters (1993)
10.1126/science.252.5010.1260
DeMore W. B. Chemical kinetics and photochemical data for use in stratospheric modeling Jet Propulsion Laboratory Publication 92-20 (1992).
DYE, J.E., PARTICLE-SIZE DISTRIBUTIONS IN ARCTIC POLAR STRATOSPHERIC CLOUDS, GROWTH AND FREEZING OF SULFURIC-ACID DROPLETS, AND IMPLICATIONS FOR CLOUD FORMATION, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 97: 8015 (1992). (10.1029/91JD02740) / JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (1992)
FAHEY, D.W., INSITU MEASUREMENTS CONSTRAINING THE ROLE OF SULFATE AEROSOLS IN MIDLATITUDE OZONE DEPLETION, NATURE 363: 509 (1993). (10.1038/363509a0) / NATURE (1993)
Hanson, D. R., Journal of Geophysical Research 99: 3615 (1994). (10.1029/93JD02932) / Journal of Geophysical Research (1994)
HEIDT, L. E., JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 94: 11599 (1989). (10.1029/JD094iD09p11599) / JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (1989)
KAWA, S. R., JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 97: 7905 (1992). (10.1029/91JD02399) / JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (1992)
MOLINA M.J. unpublished data.
10.1126/science.261.5125.1143
RODRIGUEZ, J.M., ROLE OF HETEROGENEOUS CONVERSION OF N2O5 ON SULFATE AEROSOLS IN GLOBAL OZONE LOSSES, NATURE 352: 134 (1991). (10.1038/352134a0) / NATURE (1991)
10.1126/science.261.5125.1146
Schoeberl, M. R., Geophysical Research Letters 20: 29 (1993). (10.1029/92GL02637) / Geophysical Research Letters (1993)
10.1126/science.261.5125.1136
WATERS, J.W., STRATOSPHERIC CIO AND OZONE FROM THE MICROWAVE LIMB SOUNDER ON THE UPPER-ATMOSPHERE RESEARCH SATELLITE, NATURE 362: 597 (1993). (10.1038/362597a0) / NATURE (1993)
10.1126/science.261.5125.1130

Dates

Type	When
Created	18 years, 11 months ago (Oct. 5, 2006, 7:05 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 5:21 p.m.)
Indexed	2 months, 1 week ago (June 27, 2025, 10:03 a.m.)
Issued	32 years ago (Aug. 27, 1993)
Published	32 years ago (Aug. 27, 1993)
Published Print	32 years ago (Aug. 27, 1993)

Funders 0

None

BibTeX

@article{Toohey_1993, title={The Seasonal Evolution of Reactive Chlorine in the Northern Hemisphere Stratosphere}, volume={261}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.261.5125.1134}, DOI={10.1126/science.261.5125.1134}, number={5125}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Toohey, D. W. and Avallone, L. M. and Lait, L. R. and Newman, P. A. and Schoeberl, M. R. and Fahey, D. W. and Woodbridge, E. L. and Anderson, J. G.}, year={1993}, month=aug, pages={1134–1136} }

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