Re: Questions on NCL ESMF Regridding and Plotting

From: David Brown <dbrown_at_nyahnyahspammersnyahnyah>
Date: Fri Jan 04 2013 - 13:24:02 MST

I can't answer the first question, but as to the second, you should set cnFillMode to "RasterFill" or "CellFill" (read the docs to learn the difference -, making sure that cnRasterSmoothingOn is set False (that is the default value).

On Jan 4, 2013, at 1:11 PM, Ping Yang wrote:

> Dear NCL,
> I have two issues with the NCL:
> 1) Regridding with ESMF
> Has anyone here tested the NCL ESMF regridding function with real data, actually I got problems when I did the regridding using Daymet data, what I did was regridding 1KM to 3MIN and Half degree, and I found bias occurred during the regridding using ESMF conserve method (which is not conserve, the regridded output lost precipitation instead of conserve the value)
> 2)Plotting using the NCL 6.1.0
> I got problems when plotting the half degree resolution and the 3MIN resolution for the a same dataset(0.5 D was regridded from the 3MIN) , here I show a figure which can
> <image.png>
> <image.png>
> The first one is 0.5 degree and the following one is 3 MIN, however, I expected to see some bricks(coarser grids) instead of so smoothing contour in the half degree plot. Has anyone else has the same problem, or is there a place to configure the plot setting to remove the smoothing effect?
> Looking forward to hearing from you.
> Best Regards,
> Ping
> --
> Ping Yang, Ph.D.
> CUNY Environmental Crossroads Initiative
> Marshak Science Building - Suite 925
> The City College of New York - CUNY
> 160 Convent Avenue, New York NY 10031
> Phone: 212-650-5769
> Fax: 212-650-7064
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Received on Fri Jan 4 13:24:14 2013

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