[gradsusr] How to get the the Laplacian of Divergence?

[Jeff Duda]

1) any calculus term can be calculated with adequate applications of the
cdiff() function. For laplacians, you will need to nest cdiff() functions.

2) set clevs

Jeff Duda

On Wed, Apr 18, 2018 at 8:36 AM, Joseph Basconcillo <
jbasconcillo at pagasa.dost.gov.ph> wrote:

> 1. I used hdivg(var1,var2) to get the divergence of U,V wind components.
> But I also want to get the laplacia of the divergence, how can this be done
> in GrADS?
>
> 2. I want to plot a line/contour exactly equal to 0. My values range from
> -3 to 3. So when I try to set gxout contour there's a line equal to zero
> when I set clevs 0. I just to get the zero contour line or the center of
> that contour line where I presume the absolute zero is located.
>
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-- 
Jeff Duda, Research Scientist

University of Colorado Boulder

Cooperative Institute for Research in Environmental Sciences

NOAA/OAR/ESRL/Global Systems Division
Boulder, CO
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