Changes between Version 7 and Version 8 of user/techene/TP_NEMO
- Timestamp:
- 2021-01-21T19:52:23+01:00 (3 years ago)
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user/techene/TP_NEMO
v7 v8 31 31 |-- cfgs 32 32 |-- ORCA2_ICE_PISCES (never compiled) 33 |-- EXPREF 34 |-- namelist_cfg 35 |-- ... 33 36 |-- ... 34 37 }}} … … 100 103 101 104 What happens ? namelist_cfg is the parameter file that is where you change values and input files in order to customize your run. 102 - change the model time step 103 - change the file frequency 105 - model time step : rn_rdt is express in seconds 106 Default value for ORCA2 is rn_rdt = 5760 sec. 107 How many time steps do the model in 1 day ? => 1 day is 86400 seconds => 86400/rn_rdt = #time steps per day => for ORCA2 it is 15 108 109 - simulation duration : nn_itend is the number of time step 110 Default number for ORCA2 is nn_itend = 5840 111 How many day last such a simulation ? nn_itend x rn_rdt / 86400 = 389 that is about a year (?) 112 In the .nc simulation output file "ORCA2_XXXXX_grid_T.nc" one time point is written every 5 days. 113 114 - layout and resolution : ln_read_cfg & cn_domcfg 115 Default grid specified by reading a configuration file ln_read_cfg = .true. & cn_domcfg = "ORCA_R2_zps_domcfg" 116 This configuration use a specific grid ORCA with a 2 degre resolution on average (?) resolution is automatically deduced from the file content. The file must be in HOME/NEMO/cfgs/ORCA2_ICE_PISCES/EXP00. 117 118 - wind stress files : sn_wndi & sn_wndj 104 119 105 120 == Run NEMO's CANAL configuration == … … 121 136 122 137 What happens ? NEMO's sources (files.F90) are in src and in ./tests/CANAL/MY_SRC here we may want to change them in order to implement new features such as boundary condition shape. In that case we have to compile NEMO each time we change a source file. 123 - change the model time step 124 - change the file frequency 138 - change the model time step : rn_rdt 139 - change the model resolution : rn_dx & rn_dy 140 - add noise : ln_sshnoise 141 - change the experience latitude : rn_ppgphi0 142 - change the wind : rn_u10 (amplitude) rn_windszx & rn_windszy (orientation)