NDLI: Lidar measurement of stratospheric aerosol at syowa station, antarctica

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Lidar measurement of stratospheric aerosol at syowa station, antarctica

Content Provider	NASA Technical Reports Server (NTRS)
Author	Nomura, A. Hirasawa, T. Fukunishi, H. Ono, T. Iwasaka, Y.
Copyright Year	1986
Description	Lidar measurement on Antarctic aerosols were made during the Antarctic Middle Atmosphere (AMA) period, 1983 to 1985, at Syowa Station. Topics measured are winter enhancement aerosol layer and volcanic effect of El Chichon on the Antarctic stratosphere aerosols. The large depolarization ratio (maximum value was about 0.8) seems to support sublimation growth of ice crystals. The lidar measurements showed a meaningful time lag between aerosol content increase and depolarization ratio increase. Considering the balloon observations made in early winter, it was speculated that an increase in large particle number concentration also contributed to the winter enhancement. The El Chichon cloud spread to the Antarctic region by the beginning of 1983. The temporal change of integrated backscatter coefficient shows a clear decay pattern, although strong winter enhancement superposes.
File Size	137925
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870000881
Archival Resource Key	ark:/13960/t3421vf5h
Language	English
Publisher Date	1986-08-01
Access Restriction	Open
Subject Keyword	Geophysics Concentration Composition Chemical Analysis Backscattering Pollution Transport Aerosols Stratosphere Volcanoes Antarctic Regions Optical Radar Time Lag Radar Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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