Changes between Version 9 and Version 10 of Documentation/UserGuide/PresentDay


Ignore:
Timestamp:
2014-11-24T12:01:55+01:00 (9 years ago)
Author:
luyssaert
Comment:

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  • Documentation/UserGuide/PresentDay

    v9 v10  
    6767}}} 
    6868=== config.card === 
    69 Use the same begin and end date of the ELI experiment. For the ELI experiment we have to make use observed BC so all BC will be from prior to 2010. A 30-year experiment does requires that we run the ELI from 1981 to 2010. We don't want to use the 1981 conditions so we will compensate for this by adjusting the dates of files, in the COMP settings. 
     69Use the same begin and end date of the ELI experiment. For the ELI experiment we have to make use observed BC so all BC will be from prior to 2010. A 30-year experiment does requires that we run the ELI from 1981 to 2010. We don't want to use the 1981 conditions so we will compensate for this by adjusting the dates of files in the COMP settings or by preparing cyclic or even static files. 
    7070 
    7171Given we want to simulate the equilibrium climate with the surface we should provide an initial condition of the vegetation. As an initial condition we use the restarts of an off-line simulation. Remember to use a restart for both the SRF and SBG component!  
     
    199199List= () 
    200200ListNonDel= (/ccc/work/cont003/dofoco/dofoco/MAPS/LITTER_DEMAND/RGRID/litter_demand_map_2010.nc, litter_map.nc), \ 
    201             (/ccc/work/cont003/dofoco/dofoco/MAPS/FM/RGRID/fm_strat_map_2010.nc, FMmap.nc) 
     201            (/ccc/work/cont003/dofoco/dofoco/MAPS/FM/RGRID/fm_strat_map_2010_mean.nc, FMmap.nc) 
    202202 
    203203[SmoothFiles] 
     
    205205}}} 
    206206 
    207 === Ground work for adjusting dates === 
    208 Because we have BC files for a present day experiment but also for pre-industrial experiment we changed the name of the BC folder by adding the suffic '-2010'. We have to make sure that LMDZOR finds the correct BC by adding this suffix. The ELI files go from 1981 to 2010 but we often don't want to use the 1981 conditions so in those cases we will hard code the date to 2010.  
    209  
    210 ?????????????????????? 
    211 The nudging files   
    212  and fixing the year to 2010 rather than the date in the config.card (which was in turn adjusted to ensure that the ELI simulation could be run for the length of our experiment, i.e., 30 years): 
    213 Following, more settings need to be changed and/or confirmed before launching the job: 
    214  (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.  
    215  
    216 Open '''.../libIGCM/libIGCM_config/libIGCM_config.tsh''' and search for the phrase '# BEGIN: SHOULD GO IN A FUNCTION FROM libIGCM_date.ksh'. Then add:  
    217 {{{ 
    218 # BEGIN: SHOULD GO IN A FUNCTION FROM libIGCM_date.ksh 
    219 # Compute year_m1 and year_p1 (year minus 1Y and year plus 1Y) 
    220   year_m1=$(( year - 1 )) 
    221   year_p1=$(( year + 1 )) 
    222   # First year for SST 1870 = 1751 + 119 
    223   year_sst=$((year + 119)) 
    224   # First year for O3 is 1855 = 1751 + 104 
    225   year_o3=$((year + 104)) 
    226   # First year for nudged wind fields 1980 = 1751 + 229 
    227   year_nudge=$((year + 229)) 
    228   # First year of pre-industrial forcing 1765 = 1751 + 14 
    229   year_preind=$((year + 14)) 
    230 }}} 
    231  (2) These newly defined years now have to be used in COMP/lmdz.card. 
    232 ????????????????? 
    233207 
    234208=== PARAM/config.def_actuel === 
    235 Double check whether in PARAM/config.def_preind the aerosol setting is as follows: 
     209Double check whether in PARAM/config.def_preind the pmagic setting matches the setting of the actual ELI experiment and in turn the setting of Pmagic of the pre-industrial run. In this set-up pmagic was 0.000 thus 
     210{{{ 
     211pmagic=0.000 
     212}}} 
     213and check whether the aerosol setting is as follows: 
    236214{{{ 
    237215aer_type=actuel 
    238216}}} 
    239 All other settings are set to _AUTO_ and should thus be automatically taken into account. The regridded aerosol data can be found at /ccc/work/cont003/dsm/p86ipsl/IGCM/BC/ATM/LMDZOR/LMD128118/AR5/HISTORIQUE/aerosols_11YearsClim_1860_v5.nc. In COMP/lmdz.card some of the aerosol settings can be manually set (see below). 
     217All other settings are set to _AUTO_ and should thus be automatically taken into account.  
     218 
     219 
     220!!!!!!!!!!!!!!!!! 
     221The regridded aerosol data can be found at /ccc/work/cont003/dsm/p86ipsl/IGCM/BC/ATM/LMDZOR/LMD128118/AR5/HISTORIQUE/aerosols_11YearsClim_1860_v5.nc. In COMP/lmdz.card some of the aerosol settings can be manually set (see below). 
    240222 
    241223=== COMP/lmdz.card ===