Articles | Volume 20, issue 14
Atmos. Chem. Phys., 20, 8975–8987, 2020
Atmos. Chem. Phys., 20, 8975–8987, 2020

Research article 29 Jul 2020

Research article | 29 Jul 2020

Differing responses of the quasi-biennial oscillation to artificial SO2 injections in two global models

Ulrike Niemeier et al.

Data sets

Revisiting the Agung 1963 volcanic forcing - impact of one or two eruptions Ulrike Niemeier, Claudia Timmreck, and Kirstin Krueger

Short summary
Artificial injections of SO2 into the tropical stratosphere show an impact on the quasi-biennial oscillation (QBO). Different numerical models show only qualitatively but not quantitatively consistent impacts. We show for two models that the response of the QBO is similar when a similar stratospheric heating rate is induced by SO2 injections of different amounts. The reason is very different vertical advection in the two models resulting in different aerosol burden and heating of the aerosols.
Final-revised paper