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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 7, JULY 1995

PROFESSIONAL PUBLICATIONS...
STRATOSPHERIC AEROSOLS

Item #d95jul108

"On Numerical Simulation of the Global Distribution of Sulfate Aerosol Produced by a Large Volcanic Eruption," J.A. Pudykiewicz (Atmos. Environ. Serv., 2121 Trans-Canada Hwy., Dorval PQ H9P 1J3, Can.), A.P. Dastoor, J. Clim., 8(3), 464-473, Mar. 1995.

The model simulation agrees well with measurements taken after the eruption. Presents other applications of the proposed methodology in the area of atmospheric chemistry.

Item #d95jul109

"Decay of Mount Pinatubo Aerosol at Midlatitudes in the Northern and Southern Hemispheres," J.M. Rosen (Dept. Phys. & Astron., Univ. Wyoming, Laramie WY 82070), N.T. Kjome et al., J. Geophys. Res., 99(D12), 25,733-25,739, Dec. 20, 1994.

Made in situ observations of stratospheric aerosol at 41° N and 45° S, using balloon-borne backscattersondes. Similar aerosol loading and decay rates occur over both midlatitude locations.

Item #d95jul110

"Banded Structures in Stratospheric Aerosol Distributions," C.R. Trepte (Sci. Applic. Intl. Corp., Hampton VA 23666), L.W. Thomason, G.S. Kent, Geophys. Res. Lett., 21(22), 2397-2400, Nov. 1, 1994.

Zonal bands of relatively low optical depth result from a reservoir of aerosol over the tropics, poleward transport, and the departure of the tropopause from isentropic surfaces.

Item #d95jul111

"A Climatology of Stratospheric Aerosol," M.H. Hitchman (Dept. Atmos. & Oceanic Sci., Univ. Wisconsin, Madison WI 53706), M. McKay, C.R. Trepte, J. Geophys. Res., 99(D10), 20,689-20,700, Oct. 20, 1994.

Creates a global climatology by combining nearly a decade of contemporaneous observations from the Stratospheric Aerosol and Gas Experiment (SAGE I and II) and Stratospheric Aerosol Measurement (SAM II) instruments. Plans to provide a representative distribution of the aerosol layer for use in radiative and chemical modeling.

Item #d95jul112

"Quantum Yield for Carbon Monoxide Production in the 248 nm Photodissociation of Carbonyl Sulfide (OCS)," Z. Zhao (Sch. Earth & Atmos. Sci., Georgia Tech, Atlanta GA 30332), R.E. Stickel, P.H. Wine, Geophys. Res. Lett., 22(5), 615-618, Mar. 1, 1995.

Measurements suggest that the contribution of OCS as a precursor to the lower stratospheric sulfate aerosol layer is somewhat larger than previously thought.

Item #d95jul113

"Vertical Profile Measurements of Carbonylsulfide in the Stratosphere," A. Engel (Forschungszentrum Jülich GMBH, ICG-1, 52425 Jülich, Ger.), U. Schmidt, Geophys. Res. Lett., 21(20), 2219-2222, Oct. 1, 1994.

Measures COS for 17-30 km altitude, using whole air sampling with subsequent gas chromatographic analysis. Calculates removal in the stratosphere to be 69 ± 28 years. Comparing this number to the estimated fluxes needed to sustain background H2SO4 aerosol confirms that most nonvolcanic aerosol is produced by the oxidation of COS in the stratosphere.

Specialized Papers

Item #d95jul114

"Deliquescence and Freezing of Stratospheric Aerosol Observed by Balloonborne Backscattersondes," N. Larsen (Danish Meteor. Inst., DK-2100 Copenhagen Ø Denmark), J.M. Rosen et al., Geophys. Res. Lett., 22(10), 1233-1236, May 15, 1995.

Item #d95jul115

Three items from ibid., 22(9), May 1, 1995:

"Evolution of the Pinatubo Volcanic Cloud over Hampton, Virginia," M.T. Osborn (Sci. Applic. Intl. Corp., Hampton VA 23666), R.J. DeCoursey et al., 1101-1104.

"FTIR Studies of Low Temperature Sulfuric Acid Aerosols," S.E. Anthony (CIRES, Univ. Colorado, Boulder CO 80309), R.T. Tisdale et al., 1105-1108.

"H2SO4 Photolysis: A Source of Sulfur Dioxide in the Upper Stratosphere," C.P. Rinsland (Atmos. Sci. Div., NASA-Langley, Hampton VA 23665), M.R. Gunson et al., 1109-1112.

Item #d95jul116

"Oxidation of Volcanic SO2: A Sink for Stratospheric OH and H2O," S. Bekki (Ctr. Atmos. Sci., Univ. Cambridge, Lensfield Rd., Cambridge CB2 1EW, UK), ibid., 22(8), 913-916, Apr. 15, 1995.

Item #d95jul117

"Evolution of the Pinatubo Volcanic Aerosol Column Above Pasadena, California, Observed with a Mid-Infrared Backscatter Lidar," D.M. Tratt (Jet Propulsion Lab., 4800 Oak Grove Dr., Pasadena CA 91109), R.T. Menzies, ibid., 22(7), 807-810, Apr. 1, 1995.

Item #d95jul118

"Extinction Coefficient (1µm) Properties of High-Altitude Clouds from Solar Occultation Measurements (1985-1990): Evidence of Volcanic Aerosol Effect," P.-H. Wang (Sci. & Technol. Corp., POB 7390, Hampton VA 23666), P. Minnis, G.K. Yue, J. Geophys. Res., 100(D2), 3181-3199, Feb. 20, 1995.

Item #d95jul119

"Extensive Lidar Observations of the Pinatubo Aerosol Layers at Tsukuba (36.1° N), Naha (26.2° N), Japan, and Lauder (45.0° S), New Zealand," O. Uchino (Meteor. Res. Inst., 1-1 Nagamine Tsukuba, Ibaraki 305, Japan), T. Nagai et al., Geophys. Res. Lett., 22(1), 57-60, Jan. 1, 1995.

Item #d95jul120

"New Application of the Operational Sounder HIRS in Determining a Climatology of Sulphuric Acid Aerosol from the Pinatubo Eruption," A.J. Baran (U.K. Meteor. Off., Bracknell, Berkshire RG12 2SZ, UK), J.S. Foot, J. Geophys. Res., 99(D12), 25,673-25,679, Dec. 20, 1994.

Item #d95jul121

Two items from J. Geophys. Res., 99(D10), Oct. 20, 1994:

"Solar Mesosphere Explorer Satellite Measurements of el Chichón Stratospheric Aerosols. 1. Cloud Morphology," D.W. Rusch (Lab. Atmos. & Space Phys., Univ. Colorado, Boulder CO 80309), R.T. Clancy et al., 20,525-20,532.

". . .2. Aerosol Mass and Size Parameters," F.G. Eparvier (addr. immed. above), D.W. Rusch et al., 20,533-20,544.