A method to perform an experiment for Venus-like planet by using forcing by Yamamoto and Takahashi (2003) is described.
This experiment does not require additional data. So, the experiment is performed with the following 3 steps:
Move to "practice" directory.
$ cd practice
In the directory, execute 'make' command. The execution files and the NAMELIST files will be automatically copied. Input directory name after inputting 'make' command. (It is assumed "Venuslike-exp" in the following example). Input 'Enter' to the question after that.
$ make
****** Setup a directory for a experiment ******
Enter directory name [testXX]: Venuslike-exp
Directory in which executable files are prepared
[../src/main]:
Directory in which NAMELIST files are prepared
[../src/main]:
Save F90/95 source code files? [y/N]:
:
*** Setup of "Venuslike-exp" is complete ***
Then a directory 'Venuslike-exp' is created, and executable files, NAMELIST files, and source code files are copied to the directory. Move the 'Venuslike-exp'.
$ cd Venuslike-exp
Note that you can perform an experiment in any directory by using executable files and configuration (namelist) files.
Create initial data file "init_T10L50.nc" using "init_data" and "init_data_Vlp_T10L50.nml"
$ ./init_data -N=init_data_Vlp_T10L50.nml
*** MESSAGE [init_data] *** Run: Initial data generation
*** MESSAGE [init_data] *** -- version = $Name: dcpam5-20110615 $$Id: exp-Venuslike.rd,v 1.4 2011-04-08 03:57:26 yot Exp $
*** MESSAGE [namelist_util] *** ----- Initialization Messages -----
*** MESSAGE [namelist_util] *** MaxNmlArySize = 256
*** MESSAGE [namelist_util] *** -- version = $Name: dcpam5-20110615 $$Id: exp-Venuslike.rd,v 1.4 2011-04-08 03:57:26 yot Exp $
*** WARNING [timeset] *** NAMELIST group "timeset_nml" is not found in "init_data_Vlp_T10L50.nml" (iostat=186).
*** MESSAGE [timeset] *** ----- Initialization Messages -----
:
*** MESSAGE [initial_data] *** ----- Initialization Messages -----
*** MESSAGE [initial_data] *** Pattern = SmallVapAvr = 0.
*** MESSAGE [initial_data] *** Ueq = 0.
*** MESSAGE [initial_data] ***
*** MESSAGE [initial_data] *** -- version = $Name: dcpam5-20110615 $$Id: exp-Venuslike.rd,v 1.4 2011-04-08 03:57:26 yot Exp $
Using an executable files 'dcpam_main' and a NAMELIST file dcpam_Vlp_T10L50.nml, execute 'dcpam_main' as follows. This program will be finished in few minutes - tens of minutes.
$ ./dcpam_main -N=dcpam_Vlp_T10L50.nml | tee Vlp.log
*** MESSAGE [namelist_util] *** ----- Initialization Messages -----
*** MESSAGE [namelist_util] *** MaxNmlArySize = 256
*** MESSAGE [namelist_util] *** -- version = $Name: dcpam5-20110615 $$Id: exp-Venuslike.rd,v 1.4 2011-04-08 03:57:26 yot Exp $
*** MESSAGE [dcpam_main] *** NAMELIST group "dcpam_main_nml" is loaded from "dcpam_Vlp_T10L50.nml".
&DCPAM_MAIN_NML FLAGDYNAMICS=T,FLAGFULLPHYSICS=F,FLAGHS94=F,FLAGVENUSSIMPLE=T,FLAGJUPITERSIMPLE=F,FLAGRADIATIONDENNOUAGCM=T,FLAGRADIATIONDCPAMEV1=F,FLAGRADIATIONDCPAMMV1=F,FLAGRADIATIONSL09=F,FLAGPHYIMP1LAYMODEL=T,FLAGPHYIMPSOILMODEL=F,FLAGPHYIMPSOILMODELSO=F,FLAGPHYIMPATMONLY=F,FLAGVERTICALFILTER=F/
*** MESSAGE [dcpam_main] *** FlagDynamics=<T>.
*** MESSAGE [dcpam_main] *** FlagRadiationDennouAGCM=<T>.
*** MESSAGE [dcpam_main] *** FlagRadiationDcpamEV1 =<F>.
*** MESSAGE [dcpam_main] *** FlagRadiationDcpamMV1 =<F>.
:
*** MESSAGE [HistoryClose] *** "VUBalance.nc" is closed
############## CPU TIME SUMMARY ################
surface_properties 0.000000E+00
auxiliary 0.108007E+00
vdiffusion_my1974 0.520025E-01
dynamics_hspl_vas83 0.187212E+01
mass_fixer 0.280015E-01
check_prog_vars 0.800041E-02
timefilter_asselin19 0.280015E-01
others 0.552037E+00
------------------------------------------------
TOTAL TIME = 0.264816E+01
In this case, 5 days integration is performed. Resolution is T10L50 (Number of grid points of longitude, latitude is 32, 16, and number of vertical layer is 50). History data are output to 'U.nc' and 'Temp.nc' etc., and a restart data is output to 'restart.nc'.
Zonal mean temperature distribution after integration for 5 days is shown below.
This figure is drawn by using Gphys, as follows:
Please type irb.
$ irb
Following prompt of irb is shown.
irb(main):001:0>
Type following lines. Please note that the left-most number is line number, and it has not been typed.
1: require "numru/ggraph"
2: include NumRu
3: gphys = GPhys::IO.open('Temp.nc', 'Temp')
4: DCL.gropn(1)
5: DCL.sgpset('lcntl', false) ; DCL.uzfact(0.7)
6: GGraph.set_fig( 'itr'=> 2 )
7: GGraph.tone( gphys.mean('lon').cut('time'=>5) )
8: GGraph.color_bar
9: DCL.grcls
Type quit to exit irb.
Above figure shows spin-up phase of the atmosphere, because Venus' atmosphere does not reach quasi-equilibrium in 5 days.
