Evidence for an 11-Year Cycle of Atmospheric H₂O₂ Fluctuation Recorded in an Ice Core at the Coastal Region, East Antarctica

Abstract

Hydrogen peroxide (H₂O₂) concentrations in an ice core obtained at site S25, near the coastal region on Mizuho Plateau, East Antarctica, have been determined. The time series of H₂O₂ concentrations showed not only seasonal variations, but also about 11-year variations corresponding to the solar cycle. There is a possibility that atmospheric H₂O₂ concentrations might have been associated with the solar cycle.