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<p class=MsoNormal>Hi!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>This is the GRIDMM5_ROOT structure:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>GRIDMM5_ROOT<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!--bin<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!--data<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>! !--terrain<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!
!--data<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!
!--data30s<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!--sbin<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>!--tars<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The terrain script is invoked with the following
command line syntax:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>$GRIDMM5_ROOT/bin/terrain lon lat nests<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Where:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>(lon,lat): the earth point center of the
weather forecast domain<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Nests: number of nested domains. For
example in nests is equal to 1 is generated a digital elevation model plus
landuse and water/land mask data centered in (lon,lat) and wide 91 (with a 27km
edge) cells west/east ward and 91 cells north/southward (basically lon,lat is
in the middle of a square domain).<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>If nests is equal to 2 do domains are
generated both centered in (lon, lat). The first as in the case of nest=1 and
the second again wide 91*91 cells, but each cell is now 27/3 km wide.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The terrain script invokes internally the
$GRIDMM5_ROOT/sbin/do_terrain script (a most general version) filling
automatically some parameters dynamically related (the current scratch
directoy) and installation related (the directory where dem dan high resolution
dem data are stored).<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The terrain script produces a
TERRAIN_DOMAINx.gz file (with x=1..nests) in the ./output directory.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The pregrid script is invoked with the
following command line syntax:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>$GRIDMM5/bin/pregrid idate hours<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Where:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Idate: is the date in the ncep format:
YYYYMMDDZHH for example 20071207Z00 (Z00 means data initialized at 00 zuli)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Hours: the number of hours have to be
simulated, for example 24.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>In order to work, pregrid needs in the
directory ./input the content of the directory:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Gsiftp://data.uniparthenope.it//home/infonav/data/ncep/YYYYMMDD/YYYYMMDDZHH<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>As output the script produces three gzipped
files in ./output directory: FILE.gz, SST.gz and SNOW.gz that will be used in next
steps.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Bye and thank you,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Raffaele<o:p></o:p></span></p>
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