[gradsusr] GFS total accumulated precipitation

[Brian Gaze]

Thanks Jim.

Understand the function, but to use does it require me to first concatenate
the individual grib2 files together for each time step required?

Brian



On 4 August 2015 at 02:59, James T. Potemra <jimp at hawaii.edu> wrote:

> 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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