Материал Үйл ажиллагааны урсгал Үйл ажиллагааны төрөл All activity types New Package Changed Package Deleted Package Follow Dataset New Resource View Changed Resource View Deleted Resource View admin created the өгөгдлийн бүрдэл Stratospheric aerosols, polar stratospheric clouds, and polar ozone depletion after the Mount Calbuco eruption in 2015 2 сарын өмнө