Re: Hourly precipitation plots for hourly WRF output

[This message was forwarded to wrfhelp@ucar.edu.]

On Feb 23, 2010, at 2:51 PM, Kelly Mahoney wrote:

> Hi,
>
> I'm a new NCL user and am having some trouble figuring out the best
> way
> to generate plots of hourly precipitation from my hourly wrfout_*
> files.
>
> There is a sample script online (
> http://www.mmm.ucar.edu/wrf/users/graphics/NCL/Examples/Precip/wrf_Precip.ncl)
> that almost gets the job done, but I'm having trouble because I have a
> list of individual files with hourly output at one time, instead of
> one
> file with several times in it. [As an aside, I also tried using NCO to
> concatenate all of the files into one huge file, and running the
> example
> script on it, but I then got errors referencing issues with the
> WRFUserARW.ncl file; an example is pasted below.]
> I have been trying to use addfiles to generate my list but then have
> lots of subsequent issues with functions like wrf_user_list_times,
> wrf_map, wrf_user_getvar, etc, that require a single file instead of a
> variable of type "list" as is generated with addfiles.
>
> Ideally, I would love to have a script that loops over each time/
> file in
> my model run and generates a separate plot of hourly precipitation for
> that time (I can do this for total precipitation easily, as that only
> needs the time in the file itself, whereas hourly precip needs to be
> calculated by subtracting off the total precip from the time before).
>
> If anyone has a similar script that they wouldn't mind sharing, or any
> advice on how this would be most easily done, I would be very
> appreciative!
>
> Thanks so much,
> Kelly Mahoney
>
>
> ---------------------------------------------------------
> errors when trying to run sample script with one large, NCO-
> concatenated
> file:
>> Coordinates:
>> fatal:Number of subscripts do not match number of dimensions of
>> variable,(2) Subscripts used, (3) Subscripts expected
>> fatal:Execute: Error occurred at or near line 1373 in file
>> $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>>
>
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Received on Tue Feb 23 22:05:34 2010