Extended Data Fig. 4: Spatial masks applied to determine the vertical profile of vertical motion associated with SST variability.
From: Signature of the western boundary currents in local climate variability
The masks, used in the spatial averaging to calculate the results in Fig. 3, exclude all grid points whose regression coefficients of vertical motion at 850 hPa regressed onto SST anomalies fall below the threshold of 0.8 mm s−1 σ−1 for the (a) Gulf Stream, (b) Kuroshio-Oyashio Extension, (c) Agulhas, and (d) Brazil-Malvinas currents. Results are based on monthly mean ERA5.
