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User's Guide to NCAR CAM2.0


2. Using CAM2.0

    2.4 Example Namelists

2.4.3 Example 3 -- Restart Run

The following example namelist restarts the run outlined in Example 1 and simulates another 30 days. In a restart run, only NSREST and NESTEP, NELAPSE, or STOP_YMD and STOP_TOD should be modified relative to the initial run.

To obtain the namelist, build-namelist may be invoked with the following arguments in the same directory from which configure was invoked. 


 % setenv CSMDATA /data
 % build-namelist -runtype restart -namelist "&camexp nelapse=-30 /"

Note, that a space must be present between the last '0' above and the '/'.

 &camexp
 caseid = 'camrun'
 absems_data = '/data/atm/cam2/rad/abs_ems_factors_fastvx.052001.nc'
 ncdata = '/data/atm/cam2/inic/gaus/cami_0000-09-01_64x128_T42_L26_c020514.nc'
 bndtvs = '/data/atm/cam2/sst/sst_HadOIBl_bc_64x128_clim_c020411.nc'
 bndtvo = '/data/atm/cam2/ozone/noaao3.1990.21999.nc'
 nsrest = 1
 nelapse = -30
 iyear_ad = 1950
 /

 &clmexp
 fpftcon = '/data/lnd/clm2/pftdata/pft-physiology'
 fsurdat = '/data/lnd/clm2/srfdata/cam/clms_64x128_c020514.nc'
 finidat = '/data/lnd/clm2/inidata/cam/clmi_0000-09-01_64x128_T42_c020514.nc'
 /

CASEID

CASEID must be the same as the case name in Example 1.

NSREST

NSREST=1 indicates a "restart" run starting from the most recent restart datasets produced by Example 1 and continuing the run.

NELAPSE

This run, as a continuation of the previous one-day simulation, will start at the beginning of day 2 and run for 30 days. This could also be specified by setting NESTEP=-31(days) or NESTEP=2232 (timesteps), assuming a DTIME of 1200 seconds.

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$Name: $ $Revision: 1.1 $ $Date: 2004/06/08 02:57:21 $ $Author: jmccaa $