February 28, 2007
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Our extensive collection of documents.
Archives of the
Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999
FROM VOLUME 8, NUMBER 1, JANUARY 1995
"Total Ozone Changes over Eurasia Since 1973 Based on
Re-evaluated Filter Ozonometer Data," R.D. Bojkov (Atmos.
Environ. Serv., 4905 Dufferin St., Downsview ON M3H 5T4, Can.),
V.E. Fioletov, A.M. Shalamjansky, J. Geophys. Res., 99(D11),
22,985-22,999, Nov. 20, 1994.
Uses data from 45 stations in the former USSR to make the
first comparison of ozone levels between eastern Siberia and the
European area. Results show a steady ozone decline similar to
that deduced from Dobson stations at the same latitudes.
section: "The Stratospheric Photochemistry Aerosols and
Dynamics Expedition (SPADE) and Airborne Arctic Stratospheric
Expedition II (AASE-II)," Geophys. Res. Lett., 21(23),
253 ff., Nov. 15, 1994. Consists of 19 papers. The missions
recorded trace species and aerosols at middle and high latitudes
spanning the input and decay of debris from the Mt. Pinatubo
eruption. They provided the first simultaneous in situ
measurements of radicals and reservoir species of all important
families of stratospheric reactants, observed as functions of
time of day (at 18 km), latitude, and altitude (15-20 km). The
results answered several long-standing questions and provided
constraints on our understanding of the effects of supersonic
aviation, volcanic eruptions, and CFCs, and on rates for
stratospheric transport. The data established the dominance of
HOx radicals in the catalytic recombination of ozone between 15
and 20 km.
items from ibid., 21(22), Nov. 1, 1994:
"FTIR Measurements of HF, N2O and CFCs During
the Arctic Polar Night with the Moon as Light Source, Subsidence
During Winter 1992/93," J. Notholt (Wegener Inst. Polar
& Meeresforsch., Forschungsstelle Potsdam, POB 600149,
D-14401 Potsdam, Ger.), 2385-2388. A study of vertical motions in
the polar winter stratosphere.
"The Anomalous Arctic Lower Stratospheric Polar Vortex of
1992-1993," G.L. Manney (Jet Propulsion Lab., 4800 Oak Grove
Dr., Pasadena CA 91109), R.W. Zurek et al., 2405-2408. The vortex
was much more isolated than usual; such isolation delays and
reduces export of the higher ozone typical of the winter lower
stratospheric vortex to midlatitudes. The delay and reduction may
have contributed to the record low total ozone in northern
midlatitudes in 1993.
Evidence for Ozone Depletion in the Upper Atmosphere," H.
Claude, F. Schönenborn et al., Geophys. Res. Lett., 21(22),
2409-2412, Nov. 1, 1994. (See Global Climate Change Digest,
items from J. Geophys. Res., 99(D10), Oct. 20,
"On the Role of Iodine in Ozone Depletion," S.
Solomon (Aeron. Lab., NOAA, 325 Broadway, Boulder CO 80303), R.R.
Garcia, A.R. Ravishankara, 20,491-20,499. Speculates that iodine
chemistry is a factor in determining the widespread depletion of
lower stratospheric ozone, and played a role in the sudden
springtime surface ozone loss observed in the Arctic.
"Comparison of Satellite Measurements of Ozone and Ozone
Trends," D.W. Rusch (Lab. Atmos. & Space Phys., Univ.
Colorado, Boulder CO 80309), R.T. Clancy, P.K. Bhartia,
20,501-20,511. Measurements using TOMS, SBUV and SAGE I and II
showed good agreement for absolute densities of ozone, but
long-term changes (1979-1990) disagreed as a function of pressure
and in the integrated ozone amount. Generally trends were
"Comparison of SBUV and SAGE II Ozone Profiles:
Implications for Ozone Trends," R.D. McPeters (NASA-Goddard,
Greenbelt MD 20771), T. Miles et al., 20,513-20,524. SBUV and
SAGE II agreed in showing little ozone change from 1984 to 1990,
except in one layer where SAGE II measured a large ozone
decrease. Over 11 years, SBUV measured a 7% per decade ozone
decrease between 40 and 50 km, decreasing in magnitude at lower
altitudes, in good agreement with 11-year trends derived from the
average of 5 Umkehr stations.
"The Permeability of the Antarctic Vortex Edge," P.
Chen (CIRES, Univ. Colorado, Boulder CO 80309), 20,563-20,571.
Investigated mixing and cross-vortex mass transport along
isentropic surfaces in the lower stratosphere with a contour
advection technique and a semi-Lagrangian transport model for the
1993 winter, using analyzed winds. A transition layer appears to
exist around the 400 K isentropic surface, above which the vortex
is almost completely isolated from the midlatitudes and below
which the vortex is less isolated.
"The Solar Cycle Variation of Ozone in the Stratosphere
Inferred from Nimbus 7 and NOAA 11 Satellites," S. Chandra
(NASA-Goddard, Greenbelt MD 20771), R.D. McPeters, 20,665-20,671.
Shows that a 2% change in total column ozone and a 5-7% change in
ozone mixing ratio in the upper stratosphere may be attributed to
the change in the solar UV flux over a solar cycle.
"Effect of Ozone Depletion on Atmospheric CH4 and CO
Concentrations," S. Bekki, K.S. Law, J.A. Pyle, Nature, 371(6498),
595-597, Oct. 13, 1994. (See Global Climate Change Digest,
"Freezing Temperatures of H2SO4/HNO3/H2O Mixtures:
Implications for Polar Stratospheric Clouds," N. Song
(Illinois State Water Survey, 2204 Griffith Dr., Champaign IL
61820), Geophys. Res. Lett., 21(24), 2709-2712,
Dec. 1, 1994.
items from ibid., 21(23), Nov. 15, 1994:
"Temperature Averages and Rates of Stratospheric
Reactions," D.M. Murphy (Aeron. Lab., NOAA, 325 Broadway,
Boulder CO 80303), A.R. Ravishankara, 2471-2474.
"Analysis of the Physical State of One Arctic Polar
Stratospheric Cloud Based on Observations," K. Drdla (NCAR,
POB 3000, Boulder CO 80307), A. Tabazadeh et al., 2475-2478.
"Stratospheric Aerosol Growth and HNO3 Gas Phase
Depletion from Coupled HNO3 and Water Uptake by Liquid
Particles," K.S. Carslaw (M. Planck Inst. Chem., POB 3060,
D-6500 Mainz, Ger.), B.P. Luo et al., 2479-2482.
Uptake of N2O5 onto Small Sulfuric Acid
Particles," D.R. Hanson (Aeron. Lab., NOAA, 325 Broadway,
Boulder CO 80303), E.R. Lovejoy, ibid., 21(22),
2401-2404, Nov. 1, 1994.
items from J. Geophys. Res., 99(D10), Oct. 20,
"Two-Dimensional Simulation of Pinatubo Aerosol and Its
Effect on Stratospheric Ozone," X.X. Tie (NCAR, POB 3000,
Boulder CO 80307), G.P. Brasseur et al., 20,545-20,562.
"Spread of Denitrification from 1987 Antarctic and
1988-1989 Arctic Stratospheric Vortices," A.F. Tuck (Aeron.
Lab., NOAA, 325 Broadway, Boulder CO 80303), D.W. Fahey et al.,
"Climatology of Large-Scale Isentropic Mixing in the
Arctic Winter Stratosphere from Analyzed Winds," S.P.
Dahlberg (Clim. Sys. Res. Prog., Texas A&M Univ., College
Sta. TX 77843), K.P. Bowman, 20,585-20,599.
"New Photolysis System for NO2 Measurements in the Lower
Stratosphere," R.S. Gao (Aeron. Lab., NOAA, 325 Broadway,
Boulder CO 80303), E.R. Keim et al., 20,673-20,681.
"Evolution of the 1991-1992 Arctic Vortex and Comparison
with the Geophysical Fluid Dynamics Laboratory SKYHI General
Circulation Model," S.E. Strahan (NASA-Goddard, Greenbelt MD
20771), J.E. Rosenfield et al., 20,713-20,723.
Guide to Publishers
Index of Abbreviations