title: Stratospheric dust-aerosol event of november 1974.
abstract: A strong incursion of dust and aerosol at an altitude of 20 kilometers was noted over Baja California and southern Arizona in mid-November 1974, as indicated by bluish-ashen daylight skies and colorful twilight glows of the type usually associated with volcanic eruptions. Infrared satellite observations and reports from other sources eliminated a possible oceanic origin in the eastern Pacific. The stratum is probably from the extensive eruption of Volcan de Fuego in Gautemala in October 1974.
authors.forename: A B
authors.initials: AB
authors.lastname: Meinel
authors.forename: M P
authors.initials: MP
authors.lastname: Meinel