[gradsusr] Lat Long question

Jennifer Adams jma at cola.iges.org
Mon Oct 11 17:22:22 EDT 2010

On Oct 11, 2010, at 3:42 PM, Metris Limited Forecaster wrote:

> I have a Meteogram script which allows for a specified Latitude/  
> Longitude ... to be used
>   My question is with grads does it get the nearest grid data for  
> that point or does it interpolate
> the grid data for the specified point or does use the  nearest grid  
> point?
The meteogram script uses the nearest grid point to your specific lat  

> If it uses the nearest grid point ... what would we do the script to  
> get an interpolated result?
You would have to get values from the four surrounding gridpoints and  
bilinearly interpolate.

> The scripts pulls down the data is using DODS.
Please note that you may be using an old version of the meteogram  
script. Latest versions are in
Please start with by reading the ReadMe file very carefully.
I cannot provide further support for using or modifying these scripts,  
but other users in this forum may have some experience or wisdom to  


> Your help would be appreciated
> Howard Staines
> Forecaster Metris Limited
> websited - www.metris.co.nz  - phone 06 8441042 - fax 06 8441046
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr

Jennifer M. Adams
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org

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