Bug: Issue with plot_time_series.py

[adu461386118]

Description

PyRate uses plot_time_series.py to show the accumulated subsidence using the tscuml files in timeseries_dir. This is an issue occurred for some frames, e.g. T45D_F28S_S1A, the below error message is raised and plot_time_series.py fails. It has something to do with the refvalue,

Error Message

Temporary solution

comment out line 414 #axts.set_ylim(dmin, dmax)