[gradsusr] how to make two figures using the same time axis?

[Xingang Lyu]

Dear GrADS users,

I am trying to plot two time-relevant figures on a fixed (lon, lat) site. One is the time curve for Lifting Index (a 2D variable), the other is the Time-Pressure revolution figure for u-v vectors (3-D variable). My question is, how to make these two figures using the same time axis? see the attachment, please. Thanks.

Regards,
Gary Lyu
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