Fig. 5: Clustering of eastern SPNA water masses.
From: A shift in the ocean circulation has warmed the subpolar North Atlantic Ocean since 2016
a The horizontal distribution of the two classes KSTG (red) and KSPG (blue) obtained from the long-term mean (2001–2019) temperature and salinity fields, and b their respective temperature and salinity vertical structures. Profiles where depth does not exceed 2000 m (white shadings) were not included in the PCM. c The OHC anomalies relative to the 2003–2019 period of the upper 0–700 m layer of the eastern SPNA (black box, black line) decomposed into contributions from KSPG (solid blue) and KSTG (solid red). Anomalies in the box-averaged proportion of those two classes are shown with dashed lines.
