Mechanisms of formation of stratospheric clouds observed during the antarctic late winter of 1992

Journal Article · Fri Jul 23 04:00:00 EDT 1993 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/93GL01385· OSTI ID:6069453

Gobbi, G P; Adriani, A ^[1]

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1. Instituto di Fisica dell'Atmosfera CNR, Frascati (Italy)

This paper reports on lidar measurements of stratospheric clouds made from McMurdo Station, Antarctica, during the winter of 1992. The lidar signals detect the presence of polar stratospheric clouds (PSC) by looking at depolarized backscatter signals from polarized laser pulses. As the phase or physical shape of the condensed particles changes, the extent of depolarizing backscattering varies. The authors saw two periods of growth of PSC particles, and the large particles appeared to survive for several days. Indications are that in the late winter most of the sulfuric acid aerosol in the inner polar vortex was frozen.

• OSTI ID: 6069453
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 20:14; ISSN GPRLAJ; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540110*
ANTARCTIC REGIONS
ANTARCTICA
BACKSCATTERING
CLOUDS
CRYOSPHERE
EARTH ATMOSPHERE
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MEASURING INSTRUMENTS
NUCLEATION
OPTICAL RADAR
PARTICLES
POLAR REGIONS
RADAR
RANGE FINDERS
SCATTERING
STRATOSPHERE
SULFURIC ACID
TURBULENCE