Continuous measurements of turbidity, skylight, solar aureole, and sky polarization have shown significant changes in optical effects since the spread of the El Chichon eruption volcanic cloud to northern mid-latitudes in late Oct. 1982. These effects persisted during 1983 except for the fading of twilight colors.
© 1984 Optical Society of America
Original Manuscript: February 27, 1984
Published: August 1, 1984
Frederic E. Volz, "Volcanic turbidity, skylight scattering functions, sky polarization, and twilights in New England during 1983," Appl. Opt. 23, 2589-2593 (1984)