Fig. 10
From: Subinertial frequency variations in the axis of the Tsugaru Warm Current east of the Tsugaru Strait
a An example of the axis latitude distribution obtained from the JCOPE-T DA data. The black (gray) color is that at the surface (150 m). b and c: Frequency distribution of the representative zonal scale of adjacent peaks of the axis latitude obtained from the JCOPE-T DA (Lp) at 50 m and 150 m, respectively. d and e: Frequency distribution of the ratio of the difference in the first axis latitude peaks (from west) between the surface and lower depths (Dp, 50 m and 150 m, respectively) to Lp. The black (gray) vertical lines in b and c denote wavelengths with maximum growth rates in the two-layer model (Eady’s model). Subscripts w and s indicate winter and summer, respectively