GFS precipitaion data

Hello,

I'm trying to open GFS data to plot the precipitation variable but when I
put this command:

precip(:,:,i) = f[i]->A_PCP_3_SFC_acc3h

I get the following error:

fatal:No valid instance of variable A_PCP_3_SFC_acc3h found in file list

So I ran the ncl_filedump and the result was that:

         float A_PCP_3_SFC_acc3h ( lat_3, lon_3 )
         center : US National Weather Service - NCEP (WMC)
         long_name : Total precipitation
         units : kg/m^2
         _FillValue : 1e+20
         level_indicator : 1
         grid_number : 3
         parameter_table_version : 2
         parameter_number : 61
         model : Global Forecast System Model (formerly known as the
Aviation), T382 - Forecast hours 00-180, T190 - Forecast hours 192-384
         forecast_time : 9
         forecast_time_units : hours
         initial_time : 07/27/2010 (00:00)

however when I use the getfilevarnames command:

vNames = getfilevarnames (f[0])
print (vNames)

it show me the following name to preciptation variable:

A_PCP_3_SFC_acc6h'

And both variable give me the same error.

What do I do in this case?

Thanks

-- 
Jean Peres
Meteorologista
Laboratório MASTER

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Received on Tue Jul 27 12:01:53 2010