February 28, 2007
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FROM VOLUME 7, NUMBER 4, APRIL 1994
- STRATOSPHERIC OZONE: CHEMISTRY AND PHYSICS
Section: "Airborne Arctic Stratospheric Expedition
II," Geophys. Res. Lett., 20(22), Nov. 19,
1993. Includes 20 papers, introduced by the following:
"...An Overview," J.G. Anderson (Dept. Chem.,
Harvard Univ., Cambridge MA 02138), O.B. Toon, 2499-2502. The
major concerns for AASE-II were whether significant ozone loss
would occur in the next ten years within the Arctic vortex due to
Cl loading, and the mechanisms responsible for ozone loss
poleward of 30 N.
and Solubility of HCl in Ice: Preliminary Results," F.
Dominé (Lab. Glaciol & Géophys. Environ., CNRS, St. Martin
d'Hères, France), E. Thibert et al., ibid., 21(7),
601-604, Apr. 1, 1994. Experiments suggest that HCl is not
incorporated into stratospheric ice crystals.
Investigates Radiation Arriving at Earth," D.N. Baker (Lab.
Extraterr. Phys., NASA-Goddard, Greenbelt MD 20771), Eos, 75(11),
130-131, Mar. 15, 1994.
Reports on a newly discovered radiation belt that could
produce variations in global ozone. The belt consists of trapped
heavy ions and dips closest to Earth over the South Atlantic.
of Halomethanes on a-Alumina at Stratospheric Temperatures,"
G.N. Robinson (Ctr. Chem. & Environ. Phys., Aerodyne Res.
Inc., Billerica MA 01821), Geophys. Res. Lett., 21(5),
377-380, Mar. 1, 1994.
Data suggest that halocarbon source gases decompose on alumina
solid-propellant rocket motor exhaust particles in the
of the Heterogeneous Reaction HCl + HOCl on an Ozone Hole Model
with Hydrocarbon Additions," S. Elliott (Inst. Geophys.
& Planet. Phys., Los Alamos Natl. Lab., Los Alamos NM 87544),
R.J. Cicerone et al., J. Geophys. Res., 99(D2),
3497-3508, Feb. 20, 1994.
Investigates kinetics related to the injection of ethane or
propane as a means for reducing ozone loss within the Antarctic
Response to Enhanced Heterogeneous Processing After the Eruption
of Mt. Pinatubo," J.M. Rodriguez (Atmos. & Environ. Res.
Inc., 840 Memorial Dr., Cambridge MA 02139), M.K.W. Ko et al., Geophys.
Res. Lett., 21(3), 209-212, Feb. 1, 1994.
Combines SAGE-II measurements with a 2-D model. If
heterogeneous mechanisms are the primary cause of the low
1992-1993 ozone levels, ozone concentrations should start
recovering in 1994.
out of the Lower Stratospheric Arctic Vortex by Rossby Wave
Breaking," D.W. Waugh (Ctr. Meteorol. & Phys. Oceanog.,
Mass. Inst. Technol., Cambridge MA 02139), R.A. Plumb et al., J.
Geophys. Res., 99(D1), 1071-1088, Jan. 20, 1994.
Based on observations, Rossby wave breaking was an ongoing
occurrence during the experiments, and air was ejected from the
polar vortex in the form of long filamentary structures.
Chemistry: Potential Implications for Stratospheric Ozone,"
M.K.W. Ko (Atmos. & Environ. Res. Inc., 840 Memorial Dr.,
Cambridge MA 02139), N.-D. Sze et al., Geophys. Res. Lett., 21(2),
101-104, Jan. 15, 1994.
Calculations suggest kinetic measurements that could reduce
uncertainties in CF3 chemistry, and help to determine the ozone
depletion potential of CF3-bearing compounds.
Variations of Monthly Mean Total Ozone and Lower Stratospheric
Temperature," W.J. Randel (NCAR, POB 3000, Boulder CO
80307), J.B. Cobb, J. Geophys. Res., 99(D3),
5433-5447, Mar. 20, 1994.
for Meteorological Bias in Lidar Ozone Data Sets Resulting from
the Restricted Frequency of Measurement Due to Cloud Cover,"
H. De Backer, E.P. Visser (Air Res. Lab., RIVM, Bilthoven, Neth.)
et al., ibid., 99(D1), 1395-1401, Jan. 20, 1994.
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