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This is a map of
the mean ADCP currents on a ¼ x ¼ degree grid.
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Data from all
cruises have been used to create this grid.
The two colors represent current vectors at different depths (red 100,
green 205 m).
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It is important
to remember that certain regions have more data going into them that
others. The southern portion of the
grid is derived primarily from the NBP-0103 cruise.
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There are 3
obvious features here: the southward
coastal current near Adelaide Island, the northward current at the
shelf break, and this cross-shelf “jet” near 68.5 S. The first 2 features will be discussed
separately in the next few slides.
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We can also see
that there is, in some locations, significant depth-dependence in currents.
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