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Science 28 October 1988:
Vol. 242. no. 4878, pp. 550 - 555
DOI: 10.1126/science.242.4878.550
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Articles

Observations of the Nighttime Abundance of OClO in the Winter Stratosphere Above Thule, Greenland

S. SOLOMON 1, G. H. MOUNT 1, R. W. SANDERS 2, R. O. JAKOUBEK 2, and A. L. SCHMELTEKOPF 1

1 Aeronomy Laboratory, NOAA/ERL, Boulder, CO 80303.
2 Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder, CO 80309.

Observations at Thule, Greenland, that made use of direct light from the moon on 2,3, 4,5, and 7 February 1988 revealed nighttime chlorine dioxide (OClO) abundances that were less than those obtained in Antarctica by about a factor of 5, but that exceeded model predictions based on homogeneous (gas-phase) photochemistry by about a factor of 10. The observed time scale for the formation of OClO after sunset strongly supports the current understanding of the diurnal chemistry of OClO. These data suggest that heterogeneous (surface) reactions due to polar stratospheric clouds can occur in the Arctic, providing a mechanism for possible Arctic ozone depletion.

Submitted on July 8, 1988
Accepted on August 15, 1988


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Observations of Stratospheric NO2 and O3 at Thule, Greenland.
G. H. MOUNT, S. SOLOMON, R. W. SANDERS, R. O. JAKOUBEK, and A. L. SCHMELTEKOPF (1988)
Science 242, 555-558
   Abstract »    PDF »
In Situ Northern Mid-Latitude Observations of ClO, O3, and BrO in the Wintertime Lower Stratosphere.
W. H. BRUNE, D. W. TOOHEY, J. G. ANDERSON, W. L. STARR, J. F. VEDDER, and E. F. DANIELSEN (1988)
Science 242, 558-562
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)