Fig.1 shows the 2004-6 mean planetary and total potential vorticity (PV) along 60°W in the QuickScat OFES simulation. The PV is computed for isopycnal surfaces in such a way that if there were temporal or spatial variation, the PV would be uniform in time and space. First, there is little difference between the total and planetary PV. Second, we see several regions where PV appears to be homogenized in the horizontal and vertical.

Fig. 2 shows the standard deviation.

computed with `OFES_PV_vert_merid_section.m` in `RESEARCH/PROPOSALS/EDMF/Jun11/figures` on the main disk.