# Horizontal currents and their derivatives at the sea surface
Figure 5: Values of horizontal velocities at the sea surface, computed using 
the PIV method. The associated components of strain, divergence, and vorticity
are also included.

##U.mat
These files contain the crosswave horizontal velocities, in a coordinate system rotated by 20 degrees around Point Sal.

##V.mat
Same as previous, except for alongwave velocities.
##Strain.mat
Same as previous, except for component of strain.

##Divergence.mat
Same as previous, except for component of divergence.

##Vorticity.mat
Same as previous, except for component of vorticity.