Guitao Shi

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

Abstract Perchlorate (ClO 4 − ) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO 4 − records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO 4 − record...