[gradsusr] Using oacres function

[Thomas Davies]

Hi again,

I am trying to use the oacres function with station data, e.g. the image
below:

[image: Inline image 1]
I have tried a number of different radii however I was wondering if anybody
had any advice on what grid to use (at the moment I am using gfs 0.25/0.5)
and what values for the radii would be best for the image above ? Also if
somebody is able to tell me what each level means that would be much
appreciated.

When plotting with the radii 10,7,4,1 taken from the GrADS site, there were
some gaps in the contouring so I think this is too higher resolution. On
the other hand, using 45,30,20,10,5 the contours seemed a bit inaccurate.

Thanks in advance
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