[ncl-talk] time labels on x axis

[Gurer, Kemal@ARB]

Hello,

I am reading "time", "height", and "backscatter" data from a ceilometer datafile in netcdf format and try to plot the backscatter on a time.vs.height cross section. I create the time labels in HH:MM:SS format from "time" variable that is given in seconds in the ceilometer data. But, I cannot plot the time labels on x-axis and get the following error:

warning:_NhlCreateSplineCoordApprox: Attempt to create spline approximation for X axis failed: consider adjusting trXTensionF value

Although I play with trXTensionF value as well as other modifications suggested on the internet, I cannot put the time labels on x axis. I don't want to create a custom time array and plot it since time will change each time I read a new ceilometer data. I attached my sample script, plot and the output of the ncl script to this email. Would you please advise what modification I need to do on my ncl script?

Thank you.

Kemal.
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