Fig. 1: Observed climatology of global winter warm spells.
From: Contrasting processes driving tropical and non-tropical winter warm spells
Maps showing the climatological mean of annual mean frequency (a), participating days (b), maximum duration (c), mean duration (d), maximum intensity (e), and mean intensity (f) of winter warm spells over global land areas during 1979–2023. The embedded bar chart shows the climatology of the corresponding characteristics in different climate zones (G: global, Tr: tropical zone, A: arid zone, Te: temperate zone, P: polar zone, and C: cold zone). The latitudinal curves accompanying the maps show the zonal means of the climatology of the corresponding characteristics, and the shading indicates the spread of zonal mean values (mean ± s.d.).
