Figure 1
From: Impact of an unprecedented marine heatwave on extremely hot summer over Northern Japan in 2023
Anomalies (shaded) and normalized anomalies (contoured) by local standard deviation of interannual variations of (a) SST (°C), (b) 100 m-depth temperature (°C), (e) SAT (°C) and (f) 850-hPa temperature (°C), all averaged in the summer of 2023. Thick and thin contour intervals are 2 and 1, respectively. (c) 100 m-depth ocean current speed (shaded) and direction (arrows) in summer 2023 (not anomalies). (d) SAT (°C) anomalies based on weather station observations in summer 2023. These maps were generated with the Generic Mapping Tools (GMT) software (ver.5.4.4; https://www.generic-mapping-tools.org/download/)42.
