Both models v2.0 and v3.0 have absolute optimized frames generated from the following optimization parameters:

 * 0-80 Ma:  TR=1, NR=1, HS=1;
 * 80-170 Ma: TR=1, NR=0.5;
 * 170-250 Ma: TR=1, NR=0.2

...where TR=trench migration optimisation, NR=net rotation optimisation and HS=hotspot track fitting, in an optimisation framework as described in Tetley et al. (2019), with numbers referring to relative weights of the optimisation parameters. These parameters were iteratively determined to provide the most optimal absolute plate motion model, given the relative plate motion revisions listed above.


The optimization workflow also generates Net Rotation and Trench Migration figures which are included in the v2.0 and v3.0 directories.