[ncl-talk] warning:ContourPlotInialize: no valid values in scalar field; ContourPlot not possible: [errorno=1101]

[Alessandra Giannini]

hi there, Dickson, 

1) could be that the way you’ve set your contour levels does not match the values of the field you want to plot.
In that regard, what is the output of the command line:

printMinMax(y, 0)

[line 62 in your script]

2) but I also note that you’ve set:

res2 at mpLandFillColor       = “white"

[twice, at lines 123 and 131]

What happens if you comment these two lines out?

warm regards, alessandra






—
Alessandra Giannini
IRI for Climate and Society - The Earth Institute at Columbia University
P.O. Box 1000, Palisades NY 10964-8000
phone/fax: +1 845 680-4473/4864 - email: alesall at iri.columbia.edu




> On Apr 20, 2020, at 7:04 AM, dickson mbigi via ncl-talk <ncl-talk at ucar.edu> wrote:
> 
> Kindly help/directives,
> I am plotting map of  pre anomalies 1998-2018 with reference to the base period 1981-2010 at decadal time scale. I am getting the headed above warning along with no contours in the resulting plot. I think the problem occur at line 56 which I have used "wgt_runave_n_Wrap" function for filtering. 
> 1) I have checked my values to plot, they are all not  missing values.
> 2) the coordinate variables of y (filtered values) are  also okay.
> 
> I have attached scrip and resulting plot for your reference. I am using CRU pre data that are too big to attach along with this mail.
> 
> Regards,
> Dickson
> Institute of Atmospheric Physics, CAS.
> <preanomaly_decadal.ncl><preanom_mam.png>_______________________________________________
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