Reference

Lim EP, Hendon HH, Buttler AH, Garreaud RD, Polichtchouk I, Shepherd TG, Scaife A, Comer R, Coy L, Newman PA, Thompson DWJ & Nakamura H (2020). The 2019 Antarctic sudden stratospheric warming. Stratosphere–Troposphere Processes and their Role in Climate Newsletter 54:10–13.