[Mitgcm-support] Histogram of TAO mooring locations

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TAO moorings occasionally break free from their anchors and drift from
their deployed locations. These events can be found by inspection of the
mooring location time series in the met files. Care should be used in
the interpretation of the subsurface temperatures during these events
since the sensor depths are not accurately known.

Some raw trajectories of TAO surface mooring locations
displaying this problem are here:
 137 E, 2 N[1]
 154 E, 0 N[2]
 170 E, 0 N[3]
 140 W, 2 N[4]
 110 W, 2 N[5]
 95 W, 0 N[6]

Histogram of tAO mooring locations is here[7] . On average about 80
percent of the daily measurements are obtained within 20 km of nominal
deployment locations. For the model/data comparisons that follow I will
use all TAO data that have quality flags 1-3, including drifting
moorings, but will use actual rather than nominal locations for the
comparisons.
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[1] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/traj_2n137e.ps
[2] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/traj_0n154e.ps
[3] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/traj_0n170e.ps
[4] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/traj_2n140w.ps
[5] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/traj_2n110w.ps
[6] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/traj_0n95w.ps
[7] http://escher:2000/hosts/triton/dm1/dimitri/data/tao/matlab/FIGS/location_hist.ps