[ncl-talk] Help in get_isolines function

[Amarjiit Vikkas Pandde]

Dear NCL users,

I am trying to plot the poleward location of 4 degree Celsius isotherm at
400 m depth. To do that, I am using the get_isolines function. Then I'm
increasing the size of y and x to 3 * original size to plot from - 60 to
300 ( 60 W to 60 W).
This script works for some models, but causes a strange line in others,
please look the attached figure and the script. how can i solve this
problem?

Thank you in advance,
Amarjiit
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