Fig. 2: Monthly mean reference fields and composite mean differences.
From: Polar mesospheric ozone loss initiates downward coupling of solar signal in the Northern Hemisphere
a–d November and December mean temperature (T, K) and zonal mean zonal wind (U, ms−1) with overlaid EP-flux (arrows, m2s−2, reference scale shown with a red arrow in top right-hand corner) from the reference ("REF'') simulations. e–h Composite mean differences ("EPPO3” simulation − "REF” simulation) for T and U with overlaid EP-flux arrows. Contour intervals are 0.25 K (colourbar on the left) and 0.5 ms−1 (colourbar on the right) and for T and U, respectively. The reference scale for the EP-flux differences is shown with a red arrow in top right-hand corner. White/light grey/dark grey dots indicate statistical significance of the T and U differences at 95/90/80% levels.
