Extended Data Fig. 5: Monthly average surface salinity anomalies during May, June, July and August 2023.
From: Drivers of the extreme North Atlantic marine heatwave during 2023

a–d, Salinity anomalies (shaded) are calculated relative to the 1981–2010 mean using monthly IAPv3 data (Methods). e, Time series of North Atlantic area-averaged salinity anomalies (equator to 60° N), with years indicated by colour shaded lines, from dark blues (earliest years) to pale blues (most recent years) and 2023 indicated in bold red.