In
 this and the seven subsequent
 slides,
 five annual cycles of upper
 ocean
 variability are illustrated by
 imaging
 the temperature field
 and
 superimposing the vertical
 coordinate
 interfaces and the
 mixed
 layer base (thick line).
 
 At
 the CRBN grid point, little
 long-term
 variability is observed
 in
 the Caribbean Sea.