Fig. 10From: Global characteristics of the westward-propagating quasi-16-day wave with zonal wavenumber 1 and the connection with the 2012/2013 SSW revealed by ERA-InterimLatitude versus time structures of the \({\overline{u} }_{t}\) (first row), the \({D}_{F}\) (second row), the meridional (third row) and vertical (last row) advection of zonal momentum at 50–80 \(^\circ \mathrm{N}\). Black thick vertical line denotes the SSW central date. White contours represent zero zonal winds. Black thin contours represent 0 \(m{s}^{-1}{day}^{-1}\)Back to article page