Dynamics of these phenomena is examined by the numerical simulation in this study. Since sulfuric acid aerosols are transported by the meridional circulation, aerosol concentration rapidly increases in the polar regions. As a result, the polar regions is brighter than the equatorial region. Bright polar band are also formed in the high latitudes. Horizontal distribution of scattering coefficients of the cloud-top aerosols.
Brighter colors indicate stronger scattering regions.