[Wrf-users] Bug in wpp 3.2?

[Graziano Giuliani]

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!