Square of each geostrophic velocity component (see figure a) and b)), and eddy kinetic energy (see figure c)) in Brasil-Malvinas confluence area on november 5, 2005.
Select "compare two" using "near real time absolute geostrophic velocities" dataset: first variable will be U component, second one will be V component. In "output options" write ($*$)/2 in "evaluate expression" field (to compute U²/2); do the same to compute V²/2, but in the "evaluate expression for comparison variable" field, and with a (-1) factor, like($x$)/2x-1. You will obtain (-V²/2) variable, so as to plot (U²)-(-V²) in "constraints" menu, which select "comparison plot". For EKE map, you can opt for the "temperature rainbow" color palette, and enter followong expression [(-inf)(0,5000,50)(inf)] in "fill levels" field to constrain maxima and minima value in your map.