request suggestions on how to generate the initial condition (IC) dataset for POP?

[ysun2088]

Dear all,
I know ts_PHC2_jan_ic_gx1v6_20090205.ieeer8 is the default IC for POP. I am trying to generate a new IC that POP can read, but it failures.
Would you please provide some codes to do this?

Many thanks in advance

Yong