This report summarizes observations of tropospheric and stratospheric aerosols by a balloon-borne optical particle counter (Aerosol sonde) performed at Syowa Station from April 1997 to January 2008. Typical seasonal changes in the stratospheric aerosol layer were characterized by sedimentations of the stratospheric aerosol layer in autumn. PSCs activity in winter. and sudden increase ... https://unitedssports.shop/product-category/lacrosse-sticks-heads/