El Chichon and “mystery cloud” aerosols between 30 and 55 km: Global observations from the SME visible spectrometer
作者:
R. Todd Clancy,
期刊:
Geophysical Research Letters
(WILEY Available online 1986)
卷期:
Volume 13,
issue 9
页码: 937-940
ISSN:0094-8276
年代: 1986
DOI:10.1029/GL013i009p00937
数据来源: WILEY
摘要:
Visible limb radiances measured by the Solar Mesophere Explorer (SME) are used to obtain volume scattering ratios for aerosol loading in the 30‐55 km altitude range of the stratosphere. Global maps of these ratios are presented for the period January, 1982 to August, 1984. Significant aerosol scattering from the "mystery cloud" and El Chichon aerosol layers are found above 30 km. A timescale of approximately 2 months between the appearance of the aerosol at 30.5 km and at 37.5 km is consistent with vertical transport of aerosol or vapor by eddy diffusion above 30 km. An anticorrelation exists between aerosol scattering and stratospheric temperatures. Periods of lower stratospheric temperatures may account for the formation of aerosol between 40 and 55 km altitud
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