Fig. 1 | Nature Communications

Fig. 1

From: Longer and more frequent marine heatwaves over the past century

Fig. 1

Global sea surface temperature and marine heatwave properties. a, d, g, j Mean over the 1982–2016 period, b, e, h, k difference between the 1982–1998 and 2000–2016 periods, and c, f, i, l globally averaged time series of annual mean ac marine heatwave (MHW) count, df MHW intensity, gi MHW duration and jl SST from NOAA OI SST over 1982–2016. In b, e, h and k, hatching indicates the change is significantly different from zero at the 5% level. In c, f, i and l, the black lines show the globally averaged time series and red lines show a global average after removing the signature of ENSO. In c, f, i and l, the light red and blue shading indicate El Niño and La Niña periods, respectively, defined by periods exceeding ±1 s.d. of the MEI index for at least three consecutive months

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