Re: Smoother?

Thanks, Adam.

This did help:

res@cnSmoothingOn = True
res@cnSmoothingDistanceF = .03

I am using station data, so I don't think smth9 would work.

Mike

On Sep 15, 2011, at 3:45 PM, Adam Phillips wrote:

> Hi Michael,
> There's two ways to smooth the plot:
> 1) Use smth9_Wrap to smooth your data before plotting. This allows you
> to have complete control over the amount of smoothing (heavy, light,
> pass the data through the function a few times).
> http://www.ncl.ucar.edu/Document/Functions/Contributed/smth9_Wrap.shtml
>
> 2) Set cnSmoothingOn = True, along with the cnSmoothingDistanceF
> resource. You can also try setting cnSmoothingTensionF. I don't have
> that much experience with these resources, so I can't offer suggested
> settings..
>
> http://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnSmoothingOn
>
> Example #1 here uses cnSmoothingDistanceF:
> http://www.ncl.ucar.edu/Applications/wrfhelicity.shtml
> Hope that helps... Adam
>
> On 09/15/2011 02:16 PM, Michael Notaro wrote:
>> Is there any way to make the contours over Canada (where data is limited)
>> smoother? The plot is attached and plotting portion of the script is below.
>> Michael
>>
>> wks = gsn_open_wks("ps","obs_climo_map_ann_snowfall_expanded")
>> setvalues wks
>> "wkColorMap" : "rainbow+white"
>> end setvalues
>> plot=new(1,graphic)
>>
>> res = True
>>
>> res@gsnFrame=False
>>
>> res@cnLinesOn = False
>> res@cnFillOn = True
>> res@cnLineLabelsOn = False
>>
>> res@mpInlandWaterFillColor = "gray"
>> res@mpOceanFillColor="gray"
>> res@mpLandFillColor = -1
>>
>> res@cnFillDrawOrder="PreDraw"
>> res@mpFillDrawOrder="Draw"
>> res@cnLineDrawOrder="PostDraw"
>>
>> res@sfXArray = lon
>> res@sfYArray = lat
>>
>> res@mpMinLatF = 37.
>> res@mpMaxLatF = 50.
>> res@mpMinLonF = -97.
>> res@mpMaxLonF = -70.
>>
>> res@mpGeophysicalLineColor = 2
>> res@mpPerimOn = True
>> res@mpGridLineDashPattern = 2
>> res@mpOutlineBoundarySets = "AllBoundaries"
>> res@mpUSStateLineColor = "black"
>> res@pmTickMarkDisplayMode = "Always"
>>
>> res@cnLevelSelectionMode = "ExplicitLevels"
>> res@cnLevels = (/10.,50.,90.,130.,170.,210.,250.,290./)
>> res@cnFillColors=(/237,200,187,177,238,97,80,47,20/)
>> res@tiMainString="Obs Snowfall 1980-1999"
>> plot(0) = gsn_csm_contour_map(wks,snow,res)
>>
>>
>>
>>
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>
> --
> ______________________________________________________________
> Adam Phillips asphilli@ucar.edu
> NCAR/Climate and Global Dynamics Division (303) 497-1726
> P.O. Box 3000
> Boulder, CO 80307-3000 http://www.cgd.ucar.edu/cas/asphilli
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Received on Thu Sep 15 14:56:49 2011