Fig. 4
From: Stratospheric ozone loss over the Eurasian continent induced by the polar vortex shift
Potential vorticity anomalies versus chemical variables and temperature anomalies inside the polar vortex. Scatter plots of February potential vorticity (PV) anomalies against a dynamical ozone, b heterogeneous chemical ozone, c ClO x , d HCl/Cl y ratio, e HNO3 and f temperature anomalies within the polar vortex over the Eurasian continent in February during the three vortex-shift winters (i.e., 2001, 2008 and 2010). The red line represents the regression fit
