[gradsusr] GFS total accumulated precipitation

[James T. Potemra]

Hi Brian,

You should be able to use the GrADS function "sum", e.g., 'd 
sum(precip,t=1,t=384)'.

Jim

On 8/3/15 10:46 AM, Brian Gaze wrote:
> Hi,
>
> I'd like to be able to plot a chart using shading and contours for a 
> lat long range (rather than single point) which displays the total 
> accumulated precipitation for a series of time steps rather than each 
> individual one in the GFS run. For example, total precipitation for 0 
> to 384 hours, lat 30 to 60, lon -45 -60.
>
> The GFS grib2 files don't seem to contain a variable with this data so 
> I'm guessing it's necessary to sum precipitation values from each 
> individual file? Any suggestions for the best way to go about this?
>
> Thanks
>
> BWG
>
>
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