検索画面に戻る Go Research

	(269Kb)

[A-3.1.2 Modeling of Particle Formation and Loss]

[Contact Person]

Yasunobu Iwasaka
Head of Atmospheric Environmental Division
Solar Terrestrial Environment Laboratory
Nagoya University
Chikusa-ku, Nagoya 464
Tel:+81-52-781-5111(Ext.6377)
Fax:+81-52-782-3866

[Total Budget for FY1990-1992]

6,466,000 Yen

[Abstract]

Numerical model suggested that Type I PSCs (Polar Stratospheric Clouds) which formed in the upper part of PSCs layer descended to the troposphere within about 5~6 days, but the particles forming in the mid- and low PSCs layer evaporate during their descending motion. According to the radiative model including effect of spherical atmosphere and PSCs scattering, scattering effect of PSCs particles can activate photo dissociation of Ozone and other minor constituents in the winter polar stratosphere.

[Key Words]

Polar Stratospheric Ozone, Polar Stratospheric Clouds (PSCs), Denitrification of the Stratosphere, Scattering Effect of PSCs