[gradsusr] GFS total accumulated precipitation

[James T. Potemra]

Hi Brian,

Sorry, yeah you'll have to concatenate the files together.  But, you can 
do that with the template option in grads.  An explanation is given at 
http://www.iges.org/grads/gadoc/templates.html.

Jim

On 8/3/15 8:29 PM, Brian Gaze wrote:
> 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 
> <mailto: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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