Changes between Version 35 and Version 36 of Documentation/UserGuide/PreIndSim
- Timestamp:
- 2014-10-25T16:54:39+02:00 (10 years ago)
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Documentation/UserGuide/PreIndSim
v35 v36 15 15 JobName= ELI-128x118x39-1750 16 16 }}} 17 (2) Set the begin date to the earliest year available. In this case we are limited by the SST and sea ice files to 1870. So we assume that the SST in 1870 represents pre-industrial conditions. Further we are planning 20 year long equilibrium simulations but we are not sure whether it will take 20 or 30 years so we simulate the BC for 30 years to be on the safe side.17 (2) Set the begin date to the earliest year available. We are planning 20 year long equilibrium simulations but we are not sure whether it will take 20 or 30 years so we simulate the BC for 30 years to be on the safe side. 18 18 {{{ 19 19 DateBegin=1751-01-01 20 20 DateEnd=1780-12-31 21 21 }}} 22 (3) There is no need to manually create a directory for this experiment. When you use ./util/ins_job the script will create a directory with a copy of the config.card as well as the COMP, DRIVER and PARAM folder. Note that many of the data files that are used to describe the boundary conditions can be found at 23 {{{ 24 /ccc/work/cont003/dsm/p86ipsl/IGCM/INIT/ATM/LMDZOR/ 25 }}} 22 (3) There is no need to manually create a directory for this experiment. When you use ./util/ins_job the script will create a directory with a copy of the config.card as well as the COMP, DRIVER and PARAM folder. 26 23 27 24 Following, more settings need to be changed and/or confirmed before launching the job: 28 (1) We now have to set-up the job to create files for the boundary conditions (BC) for the years 1751 to 1780 but we have no driver files for these years so we use the earliest years available. That varies from data stream to data stream so we used a creative solution. Open .../libIGCM/libIGCM_config/libIGCM_config.tsh and search for25 (1) We now have to set-up the job to create files for the boundary conditions (BC) for the years 1751 to 1780 but we have no driver files for these years so we use the earliest years available. That varies from data stream to data stream so we used a creative solution. We are limited, for example by the SST and sea ice files that only go back until 1870. So we assume that the SST in 1870 represents pre-industrial conditions. Open .../libIGCM/libIGCM_config/libIGCM_config.tsh and search for # BEGIN: SHOULD GO IN A FUNCTION FROM libIGCM_date.ksh and add: 29 26 {{{ 30 27 # BEGIN: SHOULD GO IN A FUNCTION FROM libIGCM_date.ksh 31 28 # Compute year_m1 and year_p1 (year minus 1Y and year plus 1Y) 32 year_m1=$(( year - 1 )) 33 year_p1=$(( year + 1 )) 34 }}} 35 Add the following lines: 36 {{{ 37 # First year for SST 1870 = 1751 + 119 38 year_sst=$((year + 119)) 39 # First year for O3 is 1855 = 1751 + 104 40 year_o3=$((year + 104)) 29 year_m1=$(( year - 1 )) 30 year_p1=$(( year + 1 )) 31 # First year for SST 1870 = 1751 + 119 32 year_sst=$((year + 119)) 33 # First year for O3 is 1855 = 1751 + 104 34 year_o3=$((year + 104)) 41 35 }}} 42 36 (2) These newly defined years now have to be used in COMP/lmdz.card so change the boundary files as follows: … … 46 40 (${R_INIT}/ATM/${config_UserChoices_TagName}/Ozone/HYBRIDE/v2.clim/tro3_${year_o3}.new.nc, climoz.nc) 47 41 }}} 48 42 (3) Note that many of the data files that are used to describe the boundary conditions can be found at 43 {{{ 44 /ccc/work/cont003/dsm/p86ipsl/IGCM/INIT/ATM/LMDZOR/ 45 }}} 49 46 50 47 The following changes to were made to the COMP/lmdz.card:
