Double-Tropopause Events over the Mediterranean Region: Climatology, Trends and Dynamical Context from ERA5
Double tropopauses are recurrent features of the extratropical upper-troposphere–lower-stratosphere (UTLS), but their climatology and long-term evolution over the Mediterranean region remain poorly characterized. Here, ERA5 pressure-level data for 1979–2025, complemented by ERA5.1 for 2000–2006, are used to investigate...