Observations and Numerical Models
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Fig. 4.12.5. As in Fig. 4.12.4 except for the fields of potential vorticity
ae ':= 2·?.5 and 26.0, along with the observed salinity field. One sees quite clearly
the way in which the subducted fluid wraps the ventilated water around the
unventilated zone, in excellent agreement with the theoretical predictions. A
similar pattern is shown by Talley in the potential vorticity fields on these
surfaces and is shown in Fig. 4.12.5. The deeper unventilated layer ae = 26.8
shows no such structure, as expected.