Figure 7
From: Impact of an unprecedented marine heatwave on extremely hot summer over Northern Japan in 2023
(a) Summer-mean anomalies (shaded) and normalized anomalies (contoured) by its standard deviation of interannual variations of low-level cloud cover (LCC, %), in 2023. Thick and thin contour intervals are 2 and 1, respectively. The map was generated with the GMT software (ver.5.4.4; https://www.generic-mapping-tools.org/download/)42. (b) Scatter plot of summer-mean anomalies in SST (°C) versus LCC (%), both averaged within the domain off the east coast of Japan (35°–42.5°N, 141°–145°E, denoted with the black rectangular in (a)). Red indicates 2023 summer. The corresponding correlation coefficient for the 2003–2022 period is shown at the lower left of the panel. The anomalies are defined as deviations from 30-year averages with the 2003–2022 period.
