Vertical profiles of the water temperature and salinity on the left-hand side of the typhoon. Vertical profiles of the water temperature (upper panel) and salinity (lower panel) on the left-hand side of the typhoon, relative to its direction of motion, during the periods (a) 15 to 18 July 2011 for T1106, observed by profiling float 7560 and (b) 23 to 26 August 2012 for T1215, observed by profiling float 6429. Thin solid orange lines indicate the profiles before the passage of a typhoon. The thick line indicates the profile during the passage of the typhoon. Dashed blue lines indicate the profiles after the passage of a typhoon. Red circles with a solid line indicate the depth of the mixed layer. Green squares with a dashed line indicate the depth of the isothermal layer.