How can I set CCSM4 for 30 years simulation

[sirajkhan78@gmail_com]

Hi,

I am using CCSM4 as well as CAM4 and have successfully ported model to my linux cluster and passed all port validation test.

I run the model for 5 years by set nyears and N_stop = 5. But the model always start from 2001 jan and run upto 2005. Now I want to run model for 30 years to validated climatology and also need to run control run. I want to runn model from from 1978 to 2008. How can I set these dates in env_run.xml file. Do I need to set some thing else where?

Siraj

 

[hannay]

If you use the compset: F_AMIP_CN, you will get an AMIP starting in 19790101 and ending in 2005.
Fo instance:
./create_newcase -case $CASE -mach $MACH -res f19_f19 -compset F_AMIP_CN

If you want to run to the end of 2008, you need new datasets for greenhouse gases, prescribed aerosol, prescribed ozone and plan functional type as the datasets currently end in 2005:

bndtvghg = '/fis/cgd/cseg/csm/inputdata/atm/cam/ggas/ghg_hist_1765-2005_c091218.nc'
prescribed_aero_file = 'aero_1.9x2.5_L26_1850-2005_c091112.nc'
prescribed_ozone_file = 'ozone_1.9x2.5_L26_1850-2005_c091112.nc'
fpftdyn = '/fis/cgd/cseg/csm/inputdata/lnd/clm2/surfdata/surfdata.pftdyn_1.9x2.5_simyr1850-2005_c091108.nc'

 

[sirajkhan78@gmail_com]

Hi,

Thanks for the reply. Well when I use the case you mention I get following information from shell. It seems that then compset is not available in CCSM4.

Can you let me know how to proceed.


[sislam@cluster scripts]$ ./create_newcase -case amip -mach unbc -res f19_f19 -compset F_AMIP_CN

*********************************************************
* CCSM has significant flexibility to configure cases
* with respect to components, grids, and model settings.
* This version of CCSM has only be validated scientifically
* for the following full active configurations:
*
* 1.9x2.5_gx1v6 B_1850_CN
* 1.9x2.5_gx1v6 B_1850_RAMPCO2_CN
* 0.9x1.25_gx1v6 B_1850_CN
* 0.9x1.25_gx1v6 B_1850_RAMPCO2_CN
*
* If the user is interested in running a "stand-alone"
* component configuration, the following model
* configurations have been validated scientifically and
* have associated diagnostic output as part of the release.
*
* 0.9x1.25_gx1v6 F_AMIP_1DEG
* 1.9x2.5_gx1v6 F_AMIP_2DEG
* 0.9x1.25_gx1v6 I and ICN
* T62_gx1v6 C
*
* Please refer to the individual component release
* web pages for information regarding alternative
* component configurations.
********************************************************

set_compset: no match for compset F_AMIP_CN - possible compset values are
A_PRESENT_DAY (Shortname: A Desc: All data model)
B_2000 (Shortname: B Desc: All active components, present day)
B_1850 (Shortname: B1850 Desc: All active components, pre-industrial)
B_1850_CN (Shortname: B1850CN Desc: all active components, pre-industrial, with CN (Carbon Nitrogen) in CLM)
B_1850_CN (Shortname: B1850CN Desc: )
B_1850_CN (Shortname: B1850CN Desc: )
B_1850_CN_CHEM (Shortname: B1850CNCHM Desc: All active components, pre-industrial, with CN (Carbon Nitrogen) in CLM and super_fast_llnl chem in atm)
B_1850_RAMPCO2_CN (Shortname: B1850RMCN Desc: All active components, pre-industirial with co2 ramp, with CN (Carbon Nitrogen) in CLM)
B_1850_RAMPCO2_CN (Shortname: B1850RMCN Desc: )
B_1850_RAMPCO2_CN (Shortname: B1850RMCN Desc: )
B_1850-2000 (Shortname: B20TR Desc: All active components, 1850 to 2000 transient)
B_1850-2000_CN (Shortname: B20TRCN Desc: All active components, 1850 to 2000 transient, with CN (Carbon Nitrogen) in CLM)
B_1850-2000_CN (Shortname: B20TRCN Desc: )
B_1850-2000_CN_CHEM (Shortname: B20TRCNCHM Desc: All active components, 1850 to 2000 transient, with CN (Carbon Nitrogen) in CLM and super_fast_llnl chem in atm)
B_2000_TROP_MOZART (Shortname: BMOZ Desc: All active components, with trop_mozart)
B_1850_WACCM (Shortname: BW1850 Desc: all active components, pre-industrial, with waccm)
B_1850_WACCM_CN (Shortname: BW1850CN Desc: all active components, pre-industrial, with waccm and CN)
C_NORMAL_YEAR (Shortname: C Desc: Active ocean model with COREv2 normal year forcing)
D_NORMAL_YEAR (Shortname: D Desc: Active ice model with COREv2 normal year forcing)
E_2000 (Shortname: E Desc: Fully active cam and ice with som ocean, present day)
E_1850_CN (Shortname: E1850CN Desc: Pre-industrial fully active ice and som ocean, with CN)
F_AMIP (Shortname: FAMIP Desc: Default resoluton independent AMIP is INVALID)
F_AMIP (Shortname: FAMIP Desc: AMIP run for CMIP5 protocol - valid only for 1 degree cam/clm/pres-cice)
F_AMIP (Shortname: FAMIP Desc: AMIP run for CMIP5 protocol - valid only for 2 degree cam/clm/pres-cice)
F_1850 (Shortname: F1850 Desc: Pre-industrial cam/clm with prescribed ice/ocn)
F_2000 (Shortname: F Desc: Stand-alone cam default, prescribed ocn/ice)
F_2000_CN (Shortname: FCN Desc: Stand-alone cam default, prescribed ocn/ice with CN)
F_1850-2000_CN (Shortname: F20TRCN Desc: 20th Century transient stand-alone cam default, prescribed ocn/ice, with CN)
F_WACCM_1850 (Shortname: FW1850 Desc: Pre-industrial cam/clm with prescribed ice/ocn)
G_NORMAL_YEAR (Shortname: G Desc: Coupled ocean ice with COREv2 normal year forcing)
H_PRESENT_DAY (Shortname: H Desc: Coupled ocean ice slnd)
I_2000 (Shortname: I Desc: Active land model with QIAN atm input data for 2003 and Satellite phenology (SP), CO2 level and Aerosol deposition for 2000)
I_2000 (Shortname: I Desc: )
I_2000 (Shortname: I Desc: )
I_1850 (Shortname: I1850 Desc: Active land model with QIAN atm input data for 1948 to 1972 and Satellite phenology (SP), CO2 level and Aerosol deposition for 1850)
I_1850 (Shortname: I1850 Desc: )
I_1850 (Shortname: I1850 Desc: )
I_1948-2004 (Shortname: I4804 Desc: Active land model with QIAN atm input data for 1948 to 2004 and Satellite phenology (SP), CO2 level and Aerosol deposition for 2000)
I_1948-2004 (Shortname: I4804 Desc: )
I_1948-2004 (Shortname: I4804 Desc: )
I_1850-2000 (Shortname: I8520 Desc: Active land model with QIAN atm input data for 1948 to 2004 and transient Satellite phenology (SP), and Aerosol deposition from 1850 to 2000 and 2000 CO2 level)
I_1850-2000 (Shortname: I8520 Desc: )
I_1850-2000 (Shortname: I8520 Desc: )
I_2000_CN (Shortname: ICN Desc: Active land model with QIAN atm input data for 2003 and CN (Carbon Nitrogen) biogeochemistry, CO2 level and Aerosol deposition for 2000)
I_2000_CN (Shortname: ICN Desc: )
I_2000_CN (Shortname: ICN Desc: )
I_1850_CN (Shortname: I1850CN Desc: Active land model with QIAN atm input data for 1948 to 1972 and CN (Carbon Nitrogen) biogeochemistry, CO2 level and Aerosol deposition for 1850)
I_1850_CN (Shortname: I1850CN Desc: )
I_1850_CN (Shortname: I1850CN Desc: )
I_1948-2004_CN (Shortname: I4804CN Desc: Active land model with QIAN atm input data for 1948 to 2004 and CN (Carbon Nitrogen) biogeochemistry, CO2 level and Aerosol deposition for 2000)
I_1948-2004_CN (Shortname: I4804CN Desc: )
I_1948-2004_CN (Shortname: I4804CN Desc: )
I_1850-2000_CN (Shortname: I8520CN Desc: Active land model with QIAN atm input data for 1948 to 1972 and transient
CN (Carbon Nitrogen) biogeochemistry, and Aerosol deposition from 1850 to 2000 and 2000 CO2 level)
I_1850-2000_CN (Shortname: I8520CN Desc: )
I_1850-2000_CN (Shortname: I8520CN Desc: )
S_PRESENT_DAY (Shortname: S Desc: All stub models plus xatm)
X_PRESENT_DAY (Shortname: X Desc: All dead model)
set_compset: exiting

 

[sirajkhan78@gmail_com]

Hi Hanny,

I tried to run compset thinking that it will automatically run from 1850 to 2000. but when i checked the env_run.xml file It is again running for only 5 days





Can i put any start and stop date for my runs some where in yyyymmdd format.

 

[hannay]

You run is not automatically going to run for 150 years.
You need to adjust the length of the run, depending on the machine you use, the number of processors, etc, ... You can also set in env_run.xml how many times you resubmit your run.

For instance, if you set :
./xmlchange -file env_run.xml -id RESUBMIT -val '75'
./xmlchange -file env_run.xml -id STOP_OPTION -val 'nyears'
./xmlchange -file env_run.xml -id STOP_N -val '2'

You will do a 2-year run and after the 2-year are completed, you will automatically resubmit your job. In the example above, you will resubmit it 75 times (enough to cover a 150 years period)

 

[sirajkhan78@gmail_com]

Thanks hanny. I will try this method now.

But why compset F_AMIP_CN is not available in my version? Do i need to download again?

 

[hannay]

F_AMIP_CN is only available in CESM1.

If you run CCSM4, you can use F_AMIP_2DEG or F_AMIP_1DEG

 

[hyyfeng@163_com]

As, you mentioned, my question is how can I get new dataset? I also want to run the model from 1979 to 2009. I'd really appreciate your reply.

If you use the compset: F_AMIP_CN, you will get an AMIP starting in 19790101 and ending in 2005.
Fo instance:
./create_newcase -case $CASE -mach $MACH -res f19_f19 -compset F_AMIP_CN

If you want to run to the end of 2008, you need new datasets for greenhouse gases, prescribed aerosol, prescribed ozone and plan functional type as the datasets currently end in 2005:

bndtvghg = '/fis/cgd/cseg/csm/inputdata/atm/cam/ggas/ghg_hist_1765-2005_c091218.nc'
prescribed_aero_file = 'aero_1.9x2.5_L26_1850-2005_c091112.nc'
prescribed_ozone_file = 'ozone_1.9x2.5_L26_1850-2005_c091112.nc'
fpftdyn = '/fis/cgd/cseg/csm/inputdata/lnd/clm2/surfdata/surfdata.pftdyn_1.9x2.5_simyr1850-2005_c091108.nc'

 

[hyyfeng@163_com]

Hi,Siraj!I also want to run the model from 1979 to 2009. Can you tell how to deal with the new dataset when I create the new case? I'd really appreciate you suggestion.

Hi,

I am using CCSM4 as well as CAM4 and have successfully ported model to my linux cluster and passed all port validation test.

I run the model for 5 years by set nyears and N_stop = 5. But the model always start from 2001 jan and run upto 2005. Now I want to run model for 30 years to validated climatology and also need to run control run. I want to runn model from from 1978 to 2008. How can I set these dates in env_run.xml file. Do I need to set some thing else where?

Siraj

 

[hannay]

The 2005-2009 datasets haven't been released yet. A this stage, you have the option to wait for the release or to create your own datasets.