title: Volcanic sunset-glow stratum: origin.
abstract: Reexamination of the phenomenon of volcanic-dust sunsets, as typified by the Krakatoa event, supports a theory that the scattering layer is produced by the interaction of ozone and sulfur dioxide in much the same manner as is the normal "Junge"aerosol layer at 20 kilometers.
authors.forename: A B
authors.initials: AB
authors.lastname: Meinel
authors.forename: M P
authors.initials: MP
authors.lastname: Meinel