Figure 1: Observed trends in upper-ocean salinity and salinity impact on super typhoon cold wakes for 1958–2013 based on EN4.
From: Global warming-induced upper-ocean freshening and the intensification of super typhoons
(a) Trends in typhoon-season (June–November) mean sea surface salinity in psu per decade with dashed-black contours, at intervals of 20 units, overlaid representing the number of 6 hourly super typhoon (STY) track locations. The box in red indicates the study region: 130°E–150°E and 5°N–25°N. (b) Trends in typhoon-season mean subsurface salinity, averaged over the region 130°E–150°E and 5°N–25°N (see box in a), in psu per decade. The line represents the median trend value and the shaded area indicates the 95% confidence intervals, estimated using a linear regression. (c) Trends in typhoon-season (June–Nov) mean salinity contribution to cold wakes in °C per decade. In a,c, locations with statistically significant trends are marked with circles.
