Re: natgrid returns negative values

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Mon Feb 11 2013 - 10:52:43 MST

Hi Noel,

Are you saying you think the negative values are wrong, or do you just want to get rid of them somehow? What do the 0 values represent in your data? That is, are they real values, or do they represent missing values?

Could you provide us with a script and data so we can take a look?

http://www.ncl.ucar.edu/report_bug.shtml#HowToFTP

--Mary

On Feb 11, 2013, at 10:34 AM, Noel Aloysius wrote:

> Hi NCL,
>
> I am using natgrid to interpolate from a randomly-spaced (1600 points) grid to a regular-spaced rectilinear grid (47 x 47 lat/lon). I notice there are several negative values within the domain where it should all be positive. I mask out the region outside of the model domain. And the input data has no missing values but zeros are present.
>
> Is there are way or any other way to avoid negative values during the interpolation?
>
> Thanks,
> Noel
>
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Received on Mon Feb 11 10:52:53 2013

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