[gradsusr] Spatial correlation map

[Andrew Friedman]

Hi Mehwish,

You could calculate the spatial correlation over different subdomains (see scorr example in the GrADS documentation). Then, you could plot the values of each subdomain. Note that the subdomain scorr values will be on a much coarser grid than your underlying data - there will be one value of scorr over each subdomain region, which I imagine could contain hundreds of gridcells.

Best, Andrew

> On Feb 6, 2017, at 12:45 AM, mehwish ramzan <mehwish.ramzan at gmail.com> wrote:
> 
> Dear Andrew,
> 
> Thank you for your reply.
> 
> Yes, in addition to having one value as scorr, i also want to visualize the spread on this spatial correlation on my study area (as some location will be highly correlated and vice versa). So, i want to evaluate the model's performance at sub-domain level.
> 
> Is there any way to obtain it?
> 
> Please let me know.
> 
> Thank you
> 
> Mehwish
> 
> On Mon, Feb 6, 2017 at 12:56 AM, Andrew Friedman <andfried at gmail.com> wrote:
> Hi Mehwish,
> 
> If you want the spatial correlation between two fields, then it is correct that the output will be just one value.
> 
> Best, Andrew
> 
> > On Feb 5, 2017, at 3:25 PM, mehwish.ramzan at gmail.com wrote:
> >
> > Dear GrADS user,
> >
> > I want to prepare a spatial correlation map between model and observation instead of obtaining one value. I tried various scripts but no success.
> >
> > I read that tcorr can be one option. But it's for temporal relationship. I want spatial correlation.
> >
> > Can someone please guide me in this regards.
> >
> > I will be very grateful.
> >
> > Thank you
> >
> > With Best Regards,
> > Mehwish
> >
> >
> >
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