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Zonal mean column ozone changes [DU] by heterogeneous chemical reactions in an ensemble of atmosphere–ocean‐chemistry climate simulations for a 4× Pinatubo eruption in a present day (left) and preindustrial (right) atmosphere (modified from Muthers et al.103). Vertical dashed line indicates the beginning of the eruption. Significant anomalies with respect to an ensemble of control simulations are shown by stippling.
