February 28, 2007
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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999
FROM VOLUME 8, NUMBER 6, JUNE 1995
OF GENERAL INTEREST: STRATOSPHERIC OZONE
Evidence for Chemical Ozone Depletion over the Arctic in Winter 1991-92,"
P. von der Gathen (A. Wegener Inst., POB 60 01 49, D-14401 Potsdam, Ger.), M.
Rex et al., Nature, 375(6527), 131-134, May 11, 1995.
Uses a new approach (based on isentropic trajectories) to calculate chemical
ozone destruction rates, that allows direct comparisons of ozone concentrations
in the same air parcel at different times. At 20 km altitude, chemical ozone
loss occurred only between early January and mid-February, and was proportional
to the exposure of the parcel to sunlight. The timing and magnitude were broadly
consistent with existing understanding of photochemical ozone depletion
"Environmental Effects of Ozone Depletion,"
Ambio, 24(3), May 1995. Published by Roy. Swed. Acad. Sci., Box
50005, S-104 05 Stockholm, Swed. (tel: 46 8 16 4744; fax: 46 8 16 6251).
Contains the text of the UNEP 1994 ozone assessment, completed in late 1994 (Global
Climate Change Digest News, p. 9, Oct. 1994), but printed in limited
quantity by UNEP because of budget constraints.
"Executive Summary," J.C. van der Luen (Inst. Dermatol., Univ.
Hospital, Heidelberglaan 100, NL-3584 CX Utrecht, Neth.), X. Tang, M. Tevini,
"Changes in Ultraviolet Radiation Reaching the Earth's Surface,"
S. Madronich (NCAR, POB 3000, Boulder CO 80307), R.L. McKenzie et al., 143-152.
"Effects of Increased Solar Ultraviolet Radiation on Human Health,"
J.D. Longstreth (Waste Policy Inst., Quince Diamond Executive Ctr., 555 Quince
Orchard Rd., S. 600, Gaithersburg MD 20878), R.F. de Gruijl et al., 153-165.
"...on Terrestrial Plants," M.M. Caldwell (Ecol. Ctr., Utah State
Univ., Logan UT 84322), A.H. Teramura et al., 166-173.
"...on Aquatic Ecosystems," D.-P. Hälder (Inst. Botanik,
Univ. Erlangen-Nürnberg, Staudstr. 5, D-91058 Ger.), R.C. Worrest et al.,
"...on Biogeochemical Cycles," R.G. Zepp (ERL, EPA, 960 College
Sta. Rd., Athens GA 30605), T.V. Callaghan, D.J. Erickson, 181-187.
"...on Tropospheric Composition and Air Quality," X. Tang (UNEP
Effects Panel, Ctr. Environ. Studies, Peking Univ., Beijing 100871, China), S.
"...on Materials," A.L. Andrady (Dept. Polymer Sci., Res. Triangle
Inst., 3040 Cornwallis Rd., Res. Triangle Pk. NC 27709), M.B. Amin et al.,
Stratospheric Ozone LayerAn Overview," T. Peter (M. Planck Inst.
Chem., POB 3060, 6500 Mainz, Ger.), Environ. Pollut., 83, 69-79,
Summarizes dynamic, chemical and microphysical questions, with an emphasis
on chemistry. Discusses chemical reactions which can occur under relatively warm
conditions and which could contribute to the observed mid-latitude ozone
depletion. Dynamic processes are important, and appear to be the main cause of
the anomalously low ozone levels in the Northern Hemisphere during the 1991-1992
Guide to Publishers
Index of Abbreviations