We present an overview of state-of-the-art chemistry–climate and chemistry transport models
that are used within phase 1 of the Chemistry–Climate Model Initiative (CCMI-1). The CCMI …

Simulated stratospheric temperatures over the period 1979–2016 in models from the
Chemistry‐Climate Model Initiative are compared with recently updated and extended …

Ozone fields simulated for the first phase of the Chemistry-Climate Model Initiative (CCMI-1)
will be used as forcing data in the 6th Coupled Model Intercomparison Project. Here we …

The year when total column ozone (TCO) returns to 1980 levels is commonly used to
quantify recovery from disturbance caused by ozone‐depleting substances. This date is …

We perform the first multi-model intercomparison of the impact of nudged meteorology on
the stratospheric residual circulation using hindcast simulations from the Chemistry–Climate …

Recent observations show a significant decrease in lower-stratospheric (LS) ozone
concentrations in tropical and mid-latitude regions since 1998. By analysing 31 chemistry …

Understanding and modeling the large-scale transport of trace gases and aerosols is
important for interpreting past (and projecting future) changes in atmospheric composition …

Climate models consistently predict an acceleration of the Brewer–Dobson circulation (BDC)
due to climate change in the 21st century. However, the strength of this acceleration varies …

We have derived values of the ultraviolet index (UVI) at solar noon using the Tropospheric
Ultraviolet Model (TUV) driven by ozone, temperature and aerosol fields from climate …

The stratospheric age of air (AoA) is a useful measure of the overall capabilities of a general
circulation model (GCM) to simulate stratospheric transport. Previous studies have reported …