Fig. 1: Anomalous SST fields in the NE Pacific.
From: Combined oceanic and atmospheric forcing of the 2013/14 marine heatwave in the northeast Pacific

a SST anomalies in February 2014 from the ERA5 reanalysis; the black box (40°N–50°N, 135°W–150°W) denotes the study region. b Monthly averaged SST time series from ERA5 (black line), climatological monthly averaged SST (blue line) and the threshold (green line). The pink shading indicates MHWs where the SST exceeds the threshold.