[cam-users] CGD Forums

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Tue Nov 9 09:00:00 MST 2004


Dear cam-users, 

As you requested, here is the latest digest of messages posted on CGD Forums forums. Please come and join the discussion!


<<  model spin-up time, http://bb.cgd.ucar.edu//viewtopic.php?t=52 >>

PosterJanePostedMon Nov 08, 2004 10:26 pm MST, http://bb.cgd.ucar.edu//viewtopic.php?p=167#167
Message: Hi, 
<br />I am running CCSM2.0.1 fully coupled model with T42 resolution. My question is: how many years does it take for the fully coupled model to get to equilibrium? I notice that there is monthly output data named case b20.007 available in MSS storage since model year 350, does that mean the spin-up time for the fully coupled model is 350 years?

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PosterjmccaaPostedTue Nov 09, 2004 12:19 am MST, http://bb.cgd.ucar.edu//viewtopic.php?p=170#170
Message: Yes, the spin-up time for the fully coupled model is on the order of hundreds of years.  However, since the longest time scales in the coupled system are in the ocean component (and are orders of magnitude longer than the atmosphere's), you'll probably want to post your question on the CCSM message board instead of the atmosphere model message board.

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<<  how to resubmit the job automatically, http://bb.cgd.ucar.edu//viewtopic.php?t=51 >>

Postertz0616PostedMon Nov 08, 2004 6:53 pm MST, http://bb.cgd.ucar.edu//viewtopic.php?p=166#166
Message: I want to resubmit the job automatically because T42 CAM3 runs too slowly, If I want to runs 5 years but every sumit only runs 3 months then it stops. I follows the buildscript in the NCAR webpage but my job still stops at the end of 3 months run. My runscript is listed below. Could you help me point out what's  wrong with  my runscript? Thanks very much.
<br />
<br />
<br />
<br />...................
<br />## Create the namelist
<br />cd $blddir                      || echo "cd $blddir failed" &amp;&amp; exit 1
<br />echo "Building the namelist."
<br />$cfgdir/build-namelist -s \
<br />    -case $case \
<br />    -runtype initial \
<br />    -o $rundir/namelist \
<br />    -namelist "&amp;camexp nelapse=$nelapse,mss_irt=0 /" \
<br />    || echo "build-namelist failed" &amp;&amp; exit 1
<br />
<br />
<br />## Run CAM
<br />cd $rundir
<br />touch output.txt
<br />echo "Beg:: "\`date\` \`perl -e 'print time();'\` &gt;&gt; output.txt
<br />poe time $blddir/cam &lt; nam!
elist &gt;&gt;&amp; output.txt
<br />set year = \`grep restart\ file output.txt | tail -1 | sed s/^.\*.r.// | sed s/-.\*\\\$//\`
<br />#cat namelist | sed s/nsrest.\*=.\*0/nsrest\ =\ 1/ &gt; temp.namelist
<br />#\mv temp.namelist namelist
<br />##zt
<br />#if ( \$year &lt; 200 ) then
<br />if ( \$year &lt; 5 ) then
<br />##zt
<br />   echo Year is \${year}, resubmitting.
<br />   llsubmit run-cam.csh
<br />else
<br />   touch $case.done
<br />#   setenv CASE $case
<br />#   /fs/cgd/home0/jmccaa/scripts/mkclimo.csh
<br />endif
<br />echo "End:: "\`date\` \`perl -e 'print time();'\` &gt;&gt; output.txt
<br />chmod +x $rundir/run-cam.csh
<br />exit 0
<br />~

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