[Wrf-users] Bug in wpp 3.2?

[WRF Help]

Hi,

Thank you for alerting us to this bug, you are correct.  Please change 
the following line in WPPV3/sorc/wrfpost/GRIBIT.f from:
if ( GRIDO(I,J) .lt. 1.E-30 ) then
to:
if ( ABS(GRIDO(I,J)) .lt. 1.E-30 ) then

This bug has been corrected in the WPPV3.2 tar file available from the 
downloads page.
We apologize for the inconvenience.
--wrfhelp

From:  	Graziano Giuliani <graziano.giuliani at aquila.infn.it>
Sender: 	wrf-users-bounces at ucar.edu
Subject: 	[Wrf-users] Bug in wpp 3.2?
Date: 	Fri, 09 Apr 2010 12:26:16 +0200
To: 	"wrf-users at ucar.edu" <wrf-users at ucar.edu>
	
Hi there,

It is possible that I have hit a bug in WPP code in version 3.2.

Problem is in GRIBIT.f, line 148:

       DO I=1,IM
         DO J=1,JM
           if ( GRIDO(I,J) .lt. 1.E-30 ) then
             GRIDO(I,J)=0.
           end if
         enddo
       ENDDO

I assume that this loop is to "strip" unwanted "low" values before 
packing data
in GRIB format, but it just removes all negative values altogether! 
What for
velocities? I suggest placing an ABS in it.

Ciao!
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