[gembud] GEMPAK5.10.4 gd2img

• To: <gembud@xxxxxxxxxxxxxxxx>
• Subject: [gembud] GEMPAK5.10.4 gd2img
• From: "Stephen Sinnis" <ssinnis@xxxxxxxxxxxx>
• Date: Tue, 6 Nov 2007 09:56:02 -0500

Does anyone know what the limitations are for KXKY for gd2img?

Following the examples for producing a nice Topographical Image,
everything is fine:
<http://www.unidata.ucar.edu/software/gempak/examples/image_to_grid/topoimg/>

We had success producing 1km landuse and basemap grids, by following the
instructions to download the higher resolution world files
<http://glcf.umiacs.umd.edu/data/landcover/data.shtml>.

However, I can only get part of North America successfully turned into
an image.  As I expand the GRDAREA in GD2IMG, I eventually get an error
"dgc_grid failed -7".

I have found the note from 28 SEP 2007 concerning the "**" pushed to
column 73 and verified that I have the latest imgm2gi.f and gd2img, (Re:
[gembud] nex2gini navigation errors in GEMPAK).

What is interesting is that if I change the GFUNC from

GFUNC=3Dmiss(miss(miss(mask(slt(topo,0),slt(luse,.5)),mask(0,slt(luse,.5)=
)
),sgt(topo,0)),1)

to

GFUNC=3Dtopo

at the larger GRDAREA, then we successfully get an image, but no lakes.


DETAILS:

GEMPAK-GD2IMG>l
GDATTIM  =3D last
GDFILE   =3D nam_basemap.gem
GLEVEL   =3D 0
GVCORD   =3D none
GFUNC    =3D
miss(miss(miss(mask(slt(topo,0),slt(luse,.5)),mask(0,slt(luse,.5))),sgt(
topo,0)),1)
SCALE    =3D 0
PROJ     =3D str/90;-97;0
GRDAREA  =3D 41;-120;58;-14
KXKY     =3D 1002;825

CALINFO  =3D 99/3/TOPO,0,7,-8103,0;8,95,0,4700
WMOHDR   =3D TICZ99/CHIZ/
GEMPAK-GD2IMG>r
dgc_grid failed -7
Parameters requested:
GDATTIM,GDFILE,GLEVEL,GVCORD,GFUNC,SCALE,PROJ,GRDAREA,
KXKY,CPYFIL,SATFIL,CALINFO,WMOHDR.
GEMPAK-GD2IMG>

whereas, successful with:

GEMPAK-GD2IMG>l
GDATTIM  =3D last
GDFILE   =3D nam_basemap.gem
GLEVEL   =3D 0
GVCORD   =3D none
GFUNC    =3D topo
SCALE    =3D 0
PROJ     =3D str/90;-97;0
GRDAREA  =3D 41;-120;58;-14
KXKY     =3D 1002;825

CALINFO  =3D 99/3/TOPO,0,7,-8103,0;8,95,0,4700
WMOHDR   =3D TICZ99/CHIZ/
GEMPAK-GD2IMG>r
Parameters requested:
GDATTIM,GDFILE,GLEVEL,GVCORD,GFUNC,SCALE,PROJ,GRDAREA,
KXKY,CPYFIL,SATFIL,CALINFO,WMOHDR.

uname -a
Linux gempak3.testdev.pelmorex.com 2.6.18-1.2200.fc5 #1 Sat Oct 14
16:59:26 EDT 2006 i686 i686 i386 GNU/Linux

Stephen Sinnis
Pelmorex Media Inc
T. 905.829.1159 x1379
F. 905.829.5800