name: AOFLUX_GRID 
description: grid for atm ocn flux calc
valid values: ocn,atm,exch 
default value: ocn 
file: env_run.xml 
locked_stage: none 
 
name: ATM_GRID 
description: atmosphere grid
default value: 1.9x2.5 
file: env_case.xml 
locked_stage: create_newcase 
 
name: ATM_NCPL 
description: number of atm coupling intervals per day
default value: 24 
file: env_conf.xml 
locked_stage: configure -case 
 
name: ATM_NX 
description: number of atmosphere cells in i direction
default value: 144 
file: env_case.xml 
locked_stage: create_newcase 
 
name: ATM_NY 
description: Number of atmosphere cells in j direction
default value: 96 
file: env_case.xml 
locked_stage: create_newcase 
 
name: ATM_PIO_NUMTASKS 
description: atm pio number of io tasks
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: ATM_PIO_ROOT 
description: pio root processor
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: ATM_PIO_STRIDE 
description: pio stride
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: ATM_PIO_TYPENAME 
description: pio io type
default value: nothing 
file: env_run.xml 
locked_stage: none 
 
name: AVGHIST_DATE 
description: yyyymmdd format, sets coupler time-average history date (like REST_DATE)
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: AVGHIST_N 
description: sets coupler time-average history file frequency (like REST_N)
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: AVGHIST_OPTION 
description: sets coupler time-average history file frequency (like REST_OPTION)
default value: never 
file: env_run.xml 
locked_stage: none 
 
name: BATCHQUERY 
description: command used to query batch system
default value: qstat -f 
file: env_run.xml 
locked_stage: none 
 
name: BATCHSUBMIT 
description: command used to submit to batch system
default value: qsub 
file: env_run.xml 
locked_stage: none 
 
name: BATCH_PES 
description: pes requested at batch runtime
default value: 0 
 
name: BFBFLAG 
description: turns on bit-for-bit reproducibility with varying pe counts 
       in the driver and coupler, performance will likely be reduced
valid values: TRUE,FALSE 
default value: TRUE 
file: env_run.xml 
locked_stage: none 
 
name: BLDROOT 
description: CCSM source scripts build directory location
default value: $CCSMROOT/scripts/ccsm_utils/Build 
file: env_case.xml 
locked_stage: create_newcase 
 
name: BRNCH_RETAIN_CASENAME 
description: allow same branch casename as reference casename
valid values: TRUE,FALSE 
default value: FALSE 
file: env_conf.xml 
locked_stage: configure -case 
 
name: BUDGETS 
description: logical that turns on diagnostic budgets
        FALSE means budgets will never be written
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: BUDGET_ANNUAL 
description: output level for annual average budget diagnostics,
        written only if BUDGETS variable is TRUE,
        0=none, 1=net summary, 2=+detailed surface, 3=+detailed atm
valid values: 0,1,2,3 
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: BUDGET_DAILY 
description: output level for daily average budget diagnostics,
        written only if BUDGETS variable is TRUE,
        0=none, 1=net summary, 2=+detailed surface, 3=+detailed atm
valid values: 0,1,2,3 
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: BUDGET_INST 
description: output level for instantaneous budget diagnostics,
        written only if BUDGETS variable is TRUE,
        0=none, 1=net summary, 2=+detailed surface, 3=+detailed atm
valid values: 0,1,2,3 
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: BUDGET_LONGTERM_EOY 
description: output level for longterm average budget diagnostics written at end of year,
        written only if BUDGETS variable is TRUE,
        0=none, 1=net summary, 2=+detailed surface, 3=+detailed atm
valid values: 0,1,2,3 
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: BUDGET_LONGTERM_STOP 
description: output level for longterm average budget diagnostics written at end of run,
        written only if BUDGETS variable is TRUE,
        0=none, 1=net summary, 2=+detailed surface, 3=+detailed atm
valid values: 0,1,2,3 
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: BUDGET_MONTHLY 
description: output level for monthly average budget diagnostics,
        written only if BUDGETS variable is TRUE,
        0=none, 1=net summary, 2=+detailed surface, 3=+detailed atm
valid values: 0,1,2,3 
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: BUILD_COMPLETE 
description: If TRUE, models have been built successfully. (DO NOT EDIT)
valid values: TRUE,FALSE 
default value: FALSE 
file: env_build.xml 
locked_stage: none 
 
name: BUILD_STATUS 
description: Status of prior build. (DO NOT EDIT)
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: BUILD_THREADED 
description: TRUE implies always build model for openmp capability
   If FALSE, build model with openmp capability only if THREAD is greater than 1
valid values: TRUE,FALSE 
default value: FALSE 
file: env_build.xml 
locked_stage: none 
 
name: CALENDAR 
description: calendar type
valid values: NO_LEAP,GREGORIAN 
default value: NO_LEAP 
file: env_run.xml 
locked_stage: none 
 
name: CAM_CONFIG_OPTS 
description: CAM configure options, see CAM configure utility for details
default value: -phys cam4 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CAM_DYCORE 
description: CAM dynamical core
valid values: eul,fv,homme 
default value: fv 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CAM_NAMELIST_OPTS 
description: CAM specific namelist settings for -namelist option
default value: dtime=1800 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CAM_NML_USE_CASE 
description: CAM namelist use_case
default value: noresmbf_1850_cam4 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CASE 
description: case name
default value: NBF1850OC_f19_tn11_02 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CASEBUILD 
description: Buildconf directory location
default value: $CASEROOT/Buildconf 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CASEROOT 
description: full path of case
default value: /home/ntnu/tjiputra/NorESM/cases/NBF/NBF1850OC_f19_tn11_02 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CASESTR 
description: case description
default value: UNSET 
file: env_run.xml 
locked_stage: none 
 
name: CASETOOLS 
description: Case Tools directory location
default value: $CASEROOT/Tools 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSMROOT 
description: ccsm source root directory
default value: /home/ntnu/tjiputra/NorESM/noresm 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSMUSER 
description: case user name
default value: tjiputra 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_BASELINE 
description: standard ccsm baselines directory for testing
default value: UNSET 
file: env_run.xml 
locked_stage: none 
 
name: CCSM_BGC 
description: BGC flag
valid values: none,CO2A,CO2B,CO2C,CO2_DMSA 
default value: CO2A 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CCSM_CCOST 
description: 2**n relative cost of compset B is 1 (DO NOT EDIT)
default value: 0 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_CO2_PPMV 
description: CO2 ppmv
default value: 284.7 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CCSM_COMPSET 
description: CCSM component set
default value: NBF_1850_OCC (NBF1850OC) 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_CPRNC 
description: standard location of the cprnc tool
default value: UNSET 
file: env_run.xml 
locked_stage: none 
 
name: CCSM_ESTCOST 
description: 2**n relative cost of case (DO NOT EDIT)
default value: 0 
 
name: CCSM_GCOST 
description: 2**n relative cost of grid f19_g15 is 1 (DO NOT EDIT)
default value: 0 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_LCOMPSET 
description: CCSM component set, longname
default value: NBF_1850_OCC 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_MCOST 
description: 2**n relative cost of machine (DO NOT EDIT)
default value: 0 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_PCOST 
description: cost relative to 64 pes (DO NOT EDIT)
default value: 0 
 
name: CCSM_REPOTAG 
description: CCSM tag
default value: cesm1_0_4 
file: env_run.xml 
locked_stage: none 
 
name: CCSM_SCOMPSET 
description: CCSM component set, shortname
default value: NBF1850OC 
file: env_case.xml 
locked_stage: create_newcase 
 
name: CCSM_TCOST 
description: 2**n relative cost of test where ERS is 1 (DO NOT EDIT)
default value: 0 
 
name: CCSM_VOC 
description: Only used for B,E,F,I compsets: if true will pass VOC fields from lnd to atm
valid values: TRUE,FALSE 
default value: FALSE 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CHECK_TIMING 
description: logical to diagnose model timing at the end of the run
valid values: TRUE,FALSE 
default value: TRUE 
file: env_run.xml 
locked_stage: none 
 
name: CICE_AUTO_DECOMP 
description: if false, user must set the CICE decomp, otherwise configure sets it
valid values: true,false 
default value: true 
 
name: CICE_BLCKX 
description: Size of cice block in first horiz dimension.
    Value set by generate_cice_decomp.pl (called by configure).
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: CICE_BLCKY 
description: Size of cice block in second horiz dimension.
    Value set by generate_cice_decomp.pl (called by configure).
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: CICE_CONFIG_OPTS 
description: CICE configure options, see CICE configure utility for details
default value:   
file: env_conf.xml 
locked_stage: configure -case 
 
name: CICE_DECOMPTYPE 
description: cice block distribution type.
    Value set by generate_cice_decomp.pl (called by configure).
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: CICE_MODE 
description: cice mode
valid values: prognostic,prescribed,thermo_only 
default value: prognostic 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CICE_MXBLCKS 
description: Max number of cice blocks per processor.
    Value set by generate_cice_decomp.pl (called by configure).
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: CICE_NAMELIST_OPTS 
description: CICE specific namelist settings for -namelist option
default value: update_ocn_f=.true. r_snw=0.0 tr_iage=.false. tr_FY=.false. ndte=80 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_BLDNML_OPTS 
description: Options to send to CLM build-namelist (see models/lnd/clm/bld/build-namelist -h for list of options)
default value:  
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_CO2_TYPE 
description: clm CO2 type, constant means value in CLM namelist, diagnostic or prognostic mean use the value sent from the atmosphere model
valid values: constant,diagnostic,prognostic 
default value: diagnostic 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_CONFIG_OPTS 
description: Options to send to CLM configure (see models/lnd/clm/bld/configure -h for list of options)
default value:  
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_FORCE_COLDSTART 
description: Value of 'on' forces model to spinup from a cold-start (arbitrary initial conditions)
valid values: on,off 
default value: off 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_NAMELIST_OPTS 
description: Namelist settings to add to the clm_inparm namelist 
        Note, use &apos; around character values, as XML parser can't handle quotes
inside strings.
        (list of item=value settings, see models/lnd/clm/bld/namelist_files/namelist_definition.xml)
default value:  
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_NML_USE_CASE 
description: CLM namelist use_case
        (for a list see models/lnd/clm/bld/build-namelist -use_case list)
default value: 1850_noresmbf_control 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_PT1_NAME 
description: Name of single point resolution dataset to be used in I compset only
        (for a list see models/lnd/clm/bld/build-namelist -res list)
default value: UNSET 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CLM_USRDAT_NAME 
description: Data identifier name for CLM user-created datasets (see Quickstart.userdatasets)
default value: UNSET 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CODEROOT 
description: CCSM source models directory location
default value: $CCSMROOT/models 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_ATM 
description: Name of atmospheric component 
valid values: cam,datm,xatm,satm 
default value: cam 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_CPL 
description: Name of coupling component
valid values: cpl 
default value: cpl 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_GLC 
description: Name of land ice component
valid values: xglc,sglc,cism 
default value: sglc 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_ICE 
description: Name of sea ice component
valid values: cice,dice,xice,sice 
default value: cice 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_INTERFACE 
description: use MCT or ESMF component interfaces
valid values: MCT,ESMF 
default value: MCT 
file: env_build.xml 
locked_stage: none 
 
name: COMP_LND 
description: Name of land component
valid values: clm,dlnd,xlnd,slnd 
default value: clm 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_OCN 
description: Name of ocean component
valid values: pop2,docn,xocn,socn,camdom,micom 
default value: micom 
file: env_case.xml 
locked_stage: create_newcase 
 
name: COMP_RUN_BARRIERS 
description: if TRUE, turns on component run barrier calls in the driver
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: CONTINUE_RUN 
description: A continue run extends an existing CCSM run exactly.                 
        A setting of TRUE implies a continuation run
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: CPL_ALBAV 
description: Only used for C,G compsets: if true, compute albedos to work with daily avg SW down
valid values: true,false 
default value: false 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CPL_EPBAL 
description: Only used for C,G compsets: if ocn, ocn provides EP balance factor for precip
valid values: off,ocn 
default value: off 
file: env_conf.xml 
locked_stage: configure -case 
 
name: CPL_PIO_NUMTASKS 
description: pio number of io tasks
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: CPL_PIO_ROOT 
description: pio root processor
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: CPL_PIO_STRIDE 
description: pio stride
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: CPL_PIO_TYPENAME 
description: pio io type
default value: nothing 
file: env_run.xml 
locked_stage: none 
 
name: DATM_CLMNCEP_YR_ALIGN 
description: year align (simulation year corresponding to starting year) for CLM_QIAN mode
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_CLMNCEP_YR_END 
description: ending year to loop atmosphere forcing data over for CLM_QIAN mode
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_CLMNCEP_YR_START 
description: starting year to loop atmosphere forcing data over for CLM_QIAN mode
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_CPL_CASE 
description: the case name to use for cpl history forcing data for CPLHIST3HrWx mode
default value: UNSET 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_CPL_YR_ALIGN 
description: year align (simulation year corresponding to starting year) for CPLHIST3HrWx mode
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_CPL_YR_END 
description: ending year to loop data over for CPLHIST3HrWx mode
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_CPL_YR_START 
description: starting year to loop data over for CPLHIST3HrWx mode
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_MODE 
description: DATM mode
valid values: CORE2_NYF,CORE2_IAF,CLM_QIAN,CLM1PT,CPLHIST3HrWx 
default value: CORE2_NYF 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DATM_PRESAERO 
description: DATM prescribed aerosol forcing
valid values: none,clim_1850,clim_2000,trans_1850-2000,rcp2.6,rcp4.5,rcp6.0,rcp8.5,pt1_pt1 
default value: none 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DEBUG 
description: TRUE implies turning on run and compile time debugging
valid values: TRUE,FALSE 
default value: FALSE 
file: env_build.xml 
locked_stage: none 
 
name: DICE_MODE 
description: DICE mode
valid values: ssmi,ssmi_iaf 
default value: ssmi 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DIN_LOC_ROOT 
description: local inputdata directory for CCSM prestaged data
default value: $DIN_LOC_ROOT_CSMDATA 
file: env_run.xml 
locked_stage: none 
 
name: DIN_LOC_ROOT_CLMQIAN 
description: general ccsm inputdata directory for CLM QIAN datm forcing files
default value: UNSET 
file: env_run.xml 
locked_stage: none 
 
name: DIN_LOC_ROOT_CSMDATA 
description: general ccsm inputdata directory
default value: /work/shared/noresm/inputdata 
file: env_run.xml 
locked_stage: none 
 
name: DLND_MODE 
description: DLND mode
valid values: CPLHIST,NULL 
default value: NULL 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DLND_RUNOFF_MODE 
description: DLND runoff mode
valid values: CPLHIST,DIATREN_ANN_RX1,DIATREN_IAF_RX1,NULL 
default value: DIATREN_ANN_RX1 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DOCN_MODE 
description: DOCN mode
valid values: prescribed,som 
default value: prescribed 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DOCN_SSTDATA_FILENAME 
description: Sets sst/ice_cov filename for amip runs, only used in F compset
default value: UNSET 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DOCN_SSTDATA_YEAR_END 
description: Sets year end of sst/ice_cov for amip runs, only used in F compset
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DOCN_SSTDATA_YEAR_START 
description: Sets year start of sst/ice_cov for amip runs, only used in F compset
default value: -999 
file: env_conf.xml 
locked_stage: configure -case 
 
name: DOUT_L_HPSS_ACCNT 
description: account number charged for long term archival on hpss
default value: 00000000 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_L_HTAR 
description: logical to tar up long term archiver history files
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_L_MS 
description: logical to turn on long term archiving (if DOUT_S is also TRUE)
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_L_MSHOST 
description: remote host for long term archiving
default value: login.norstore.uio.no 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_L_MSROOT 
description: local long term archiving root directory
default value: /norstore_osl/projects/NS2345K/noresm/cases/$CASE 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_S 
description: logical to turn on short term archiving
valid values: TRUE,FALSE 
default value: TRUE 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_S_ROOT 
description: local short term archiving root directory
default value: /work/$CCSMUSER/archive/$CASE 
file: env_run.xml 
locked_stage: none 
 
name: DOUT_S_SAVE_INT_REST_FILES 
description: logical to archive all interim restart files, not just those at end of run
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: DRV_THREADING 
description: Turns on component varying thread control in the driver
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: ENERGY_CORRECTION 
description: ENERGY CORRECTION
valid values: ec,nec 
default value: ec 
file: env_conf.xml 
locked_stage: configure -case 
 
name: EPS_AAREA 
description: error tolerance for differences in atm/land areas in domain checking
default value: 9.0e-07 
file: env_run.xml 
locked_stage: none 
 
name: EPS_AGRID 
description: error tolerance for differences in atm/land lon/lat in domain checking
default value: 1.0e-12 
file: env_run.xml 
locked_stage: none 
 
name: EPS_AMASK 
description: error tolerance for differences in atm/land masks in domain checking
default value: 1.0e-13 
file: env_run.xml 
locked_stage: none 
 
name: EPS_FRAC 
description: error tolerance for differences in fractions in domain checking
default value: 1.0e-02 
file: env_run.xml 
locked_stage: none 
 
name: EPS_OAREA 
description: error tolerance for differences in ocean/ice areas in domain checking
default value: 1.0e-01 
file: env_run.xml 
locked_stage: none 
 
name: EPS_OGRID 
description: error tolerance for differences in ocean/ice lon/lat in domain checking
default value: 1.0e-02 
file: env_run.xml 
locked_stage: none 
 
name: EPS_OMASK 
description: error tolerance for differences in ocean/ice masks in domain checking
default value: 1.0e-06 
file: env_run.xml 
locked_stage: none 
 
name: ESMF_LIBDIR 
description: directory of esmf.mk in pre-built ESMF library
default value:  
file: env_build.xml 
locked_stage: none 
 
name: EXEROOT 
description: executable root directory
default value: /work/$CCSMUSER/noresm/$CASE 
file: env_build.xml 
locked_stage: none 
 
name: GET_REFCASE 
description: flag for automatically prestaging the refcase restart dataset
valid values: TRUE,FALSE 
default value: FALSE 
file: env_conf.xml 
locked_stage: configure -case 
 
name: GLC_GRID 
description: Glacier model grid
valid values: gland20,gland10,gland5 
default value: gland20 
file: env_conf.xml 
locked_stage: configure -case 
 
name: GLC_NCPL 
description: number of glc coupling intervals per day (integer)
default value: 1 
file: env_conf.xml 
locked_stage: configure -case 
 
name: GLC_NEC 
description: GLC land ice model number of elevation classes
valid values: 0,3,5,10 
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: GLC_NX 
description: number of glc cells in i direction
default value: 144 
file: env_case.xml 
locked_stage: create_newcase 
 
name: GLC_NY 
description: number of glc cells in j direction
default value: 96 
file: env_case.xml 
locked_stage: create_newcase 
 
name: GLC_PIO_NUMTASKS 
description: pio number of io tasks
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: GLC_PIO_ROOT 
description: pio root processor
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: GLC_PIO_STRIDE 
description: pio stride
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: GLC_PIO_TYPENAME 
description: pio io type
default value: nothing 
file: env_run.xml 
locked_stage: none 
 
name: GMAKE 
description: Fullname of GNU make command (usually gmake)
default value: gmake 
file: env_build.xml 
locked_stage: none 
 
name: GMAKE_J 
description: Number of processors for gmake
default value: 4 
file: env_build.xml 
locked_stage: none 
 
name: GRID 
description: CCSM grid
default value: 1.9x2.5_tnx1v1 
file: env_case.xml 
locked_stage: create_newcase 
 
name: HISTINIT 
description: logical to write an extra initial coupler history file
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: HIST_DATE 
description: yyyymmdd format, sets coupler snapshot history date (like REST_DATE)
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: HIST_N 
description: sets coupler snapshot history file frequency (like REST_N)
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: HIST_OPTION 
description: sets coupler snapshot history file frequency (like REST_OPTION)
default value: never 
file: env_run.xml 
locked_stage: none 
 
name: ICE_GRID 
description: ice grid (must equal ocn grid)
default value: tnx1v1 
file: env_case.xml 
locked_stage: create_newcase 
 
name: ICE_NCPL 
description: number of ice coupling intervals per day (integer)
default value: $ATM_NCPL 
file: env_conf.xml 
locked_stage: configure -case 
 
name: ICE_NX 
description: number of ice cells in i direction
default value: 360 
file: env_case.xml 
locked_stage: create_newcase 
 
name: ICE_NY 
description: number of ice cells in j direction
default value: 384 
file: env_case.xml 
locked_stage: create_newcase 
 
name: ICE_PIO_NUMTASKS 
description: pio number of io tasks
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: ICE_PIO_ROOT 
description: pio root processor
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: ICE_PIO_STRIDE 
description: pio stride
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: ICE_PIO_TYPENAME 
description: pio io type
default value: nothing 
file: env_run.xml 
locked_stage: none 
 
name: INCROOT 
description: case lib include directory
default value: $EXEROOT/lib/include 
file: env_build.xml 
locked_stage: none 
 
name: INFO_DBUG 
description: level of debug output, 0=minimum, 1=normal, 2=more, 3=too much
valid values: 0,1,2,3 
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: LIBROOT 
description: case lib directory
default value: $EXEROOT/lib 
file: env_build.xml 
locked_stage: none 
 
name: LND_GRID 
description: land grid
default value: 1.9x2.5 
file: env_case.xml 
locked_stage: create_newcase 
 
name: LND_NCPL 
description: number of land coupling intervals per day (integer)
default value: $ATM_NCPL 
file: env_conf.xml 
locked_stage: configure -case 
 
name: LND_NX 
description: Number of land cells in i direction
default value: 144 
file: env_case.xml 
locked_stage: create_newcase 
 
name: LND_NY 
description: number of land cells in j direction
default value: 96 
file: env_case.xml 
locked_stage: create_newcase 
 
name: LND_PIO_NUMTASKS 
description: pio number of io tasks
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: LND_PIO_ROOT 
description: pio root processor
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: LND_PIO_STRIDE 
description: pio stride
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: LND_PIO_TYPENAME 
description: pio io type
default value: nothing 
file: env_run.xml 
locked_stage: none 
 
name: LOGDIR 
description: directory where log files should be copied
       in addition to archiving
default value: $CASEROOT/logs 
file: env_run.xml 
locked_stage: none 
 
name: MACH 
description: current machine name
default value: vilje 
file: env_case.xml 
locked_stage: create_newcase 
 
name: MAP_A2LF_FILE 
description: atm to land mapping file for fluxes
default value: idmap 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_A2LS_FILE 
description: atm to land mapping file for states
default value: idmap 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_A2OF_FILE 
description: atm to ocn flux mapping file for fluxes (currently first order conservative)
default value: map_fv1.9x2.5_to_tnx1v1_aave_da_120120.nc 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_A2OS_FILE 
description: atm to ocn state mapping file for states (currently bilinear)
default value: map_fv1.9x2.5_to_tnx1v1_patch_120120.nc 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_L2AF_FILE 
description: land to atm mapping file for fluxes
default value: idmap 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_L2AS_FILE 
description: land to atm mapping file for states
default value: idmap 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_O2AF_FILE 
description: ocn to atm mapping file for fluxes (currently first order conservative)
default value: map_tnx1v1_to_fv1.9x2.5_aave_da_120120.nc 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_O2AS_FILE 
description: ocn to atm mapping file for states
default value: map_tnx1v1_to_fv1.9x2.5_aave_da_120120.nc 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_R2O_FILE_R05 
description: runoff (.5 degree) to ocn mapping file
default value: map_r05_to_tnx1v1_e1000r300_120120.nc 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_R2O_FILE_R19 
description: runoff (19 basin) to ocn mapping file
default value: UNSET 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAP_R2O_FILE_RX1 
description: runoff (1 degree) to ocn mapping file
default value: map_rx1_to_tnx1v1_e1000r300_120120.nc 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MAX_TASKS_PER_NODE 
description: maximum number of mpi tasks per node
default value: 16 
 
name: MICOM_CO2_TYPE 
description: provenance of atmospheric CO2 for gas flux computation
valid values: constant,prognostic,diagnostic 
default value: constant 
file: env_build.xml 
locked_stage: none 
 
name: MICOM_COUPLING 
description: surface heat and freshwater forcing, partial is consistent with coupling to a data atm model
valid values: full,partial 
default value: full 
file: env_conf.xml 
locked_stage: configure -case 
 
name: MICOM_RIVER_NUTRIENTS 
description: Optional input of riverine nutrients.  Requires module ecosys
valid values: TRUE,FALSE 
default value: TRUE 
file: env_build.xml 
locked_stage: none 
 
name: MICOM_TRACER_MODULES 
description: Optional ocean tracers.  Any combination of: iage ecosys
default value: iage ecosys 
file: env_build.xml 
locked_stage: none 
 
name: MICOM_TURBULENT_CLOSURE 
description: Optional turbulent closure.  Valid values one of: twoeq oneeq. Additional values: advection isodif
default value: oneeq advection 
file: env_build.xml 
locked_stage: none 
 
name: MPISERIAL_SUPPORT 
description: TRUE implies this machine supports the use of the mpiserial lib.
        Not all machines support the use of the mpiserial lib. For those
        that do NOT you will have to make changes similar to other machines
        that do support it in order for it to work.
        NOTE: DO NOT SET THIS TO TRUE WITHOUT MAKING THE REQUIRED CHANGES
              TO THE Macros AND env_machopts FILES!!!
valid values: TRUE,FALSE 
default value: FALSE 
file: env_conf.xml 
locked_stage: configure -case 
 
name: NTASKS_ATM 
description: number of atmosphere tasks
default value: 256 
 
name: NTASKS_CPL 
description: number of coupler mpi tasks
default value: 256 
 
name: NTASKS_GLC 
description: number of glc mpi tasks
default value: 256 
 
name: NTASKS_ICE 
description: number of ice mpi tasks
default value: 240 
 
name: NTASKS_LND 
description: number of land mpi tasks
default value:  16 
 
name: NTASKS_OCN 
description: number of ocean mpi tasks
default value: 505 
 
name: NTHRDS_ATM 
description: number of atmosphere threads
default value: 1 
 
name: NTHRDS_CPL 
description: number of coupler mpi threads
default value: 1 
 
name: NTHRDS_GLC 
description: number of glc mpi threads
default value: 1 
 
name: NTHRDS_ICE 
description: number of ice mpi threads
default value: 1 
 
name: NTHRDS_LND 
description: number of land mpi threads
default value: 1 
 
name: NTHRDS_OCN 
description: number of ocean mpi threads
default value: 1 
 
name: OBJROOT 
description: case build directory
default value: $EXEROOT 
file: env_build.xml 
locked_stage: none 
 
name: OCN_CHL_TYPE 
description: provenance of surface Chl for radiative penetration computations
valid values: diagnostic,prognostic 
default value: diagnostic 
file: env_conf.xml 
locked_stage: configure -case 
 
name: OCN_CO2_FLUX_OCMIP_BUG_FIX 
description: TRUE implies using fix to pH scale of carbon thermodynamic constants
valid values: TRUE,FALSE 
default value: TRUE 
file: env_conf.xml 
locked_stage: configure -case 
 
name: OCN_CO2_TYPE 
description: provenance of atmospheric CO2 for gas flux computation
valid values: constant,prognostic,diagnostic 
default value: constant 
file: env_conf.xml 
locked_stage: configure -case 
 
name: OCN_COUPLING 
description: surface heat and freshwater forcing, partial is consistent with coupling to a data atm model
valid values: full,partial 
default value: full 
file: env_conf.xml 
locked_stage: configure -case 
 
name: OCN_GRID 
description: ocn grid
default value: tnx1v1 
file: env_case.xml 
locked_stage: create_newcase 
 
name: OCN_ICE_FORCING 
description: under ice forcing, inactive is consistent with coupling to a data ice model
valid values: active,inactive 
default value: active 
file: env_conf.xml 
locked_stage: configure -case 
 
name: OCN_NCPL 
description: number of ocn coupling intervals per day (integer)
default value: 1 
file: env_conf.xml 
locked_stage: configure -case 
 
name: OCN_NX 
description: number of ocn cells in i direction
default value: 360 
file: env_case.xml 
locked_stage: create_newcase 
 
name: OCN_NY 
description: number of ocn cells in j direction
default value: 384 
file: env_case.xml 
locked_stage: create_newcase 
 
name: OCN_PIO_NUMTASKS 
description: pio number of io tasks: uses pio_numtasks value if set to -99
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: OCN_PIO_ROOT 
description: pio root processor: uses pio_root value if set to -99
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: OCN_PIO_STRIDE 
description: pio stride: uses pio_stride value if set to -99
default value: -99 
file: env_run.xml 
locked_stage: none 
 
name: OCN_PIO_TYPENAME 
description: pio io type: uses pio_typename value if set to \
default value: nothing 
file: env_run.xml 
locked_stage: none 
 
name: OCN_TAVG_HIFREQ 
description: tavg output control for high-frequency output
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: OCN_TAVG_TRACER_BUDGET 
description: tavg output control for tracer-budget terms
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: OCN_TIGHT_COUPLING 
description: if TRUE, treats ocean model like lnd/ice in coupling and
       removes 1 coupling period lag at the cost of concurrency
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: OCN_TRACER_MODULES 
description: Optional ocean tracers.  Any combination of: iage cfc ecosys
default value: iage 
file: env_build.xml 
locked_stage: none 
 
name: OCN_TRANSIENT 
description: specification of transient forcing datasets
valid values: unset,1850-2000 
default value: unset 
file: env_conf.xml 
locked_stage: configure -case 
 
name: ORBITAL_MODE 
description: orbital mode setting
valid values: fixed_year,variable_year,fixed_parameters 
default value: fixed_year 
file: env_run.xml 
locked_stage: none 
 
name: ORBITAL_YEAR 
description: orbital year
default value: 1990 
file: env_run.xml 
locked_stage: none 
 
name: ORBITAL_YEAR_ALIGN 
description: model year associated with orbital year for varying orbital years
default value: 1990 
file: env_run.xml 
locked_stage: none 
 
name: OS 
description: operating system
default value: CNL 
file: env_case.xml 
locked_stage: create_newcase 
 
name: PES_LEVEL 
description: pes level determined by automated initialization (DO NOT EDIT)
default value: 3rcm 
 
name: PES_PER_NODE 
description: pes per node for cost scaling
default value: $MAX_TASKS_PER_NODE 
 
name: PIO_ASYNC_INTERFACE 
description: TRUE implies perform asynchronous i/o
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: PIO_CONFIG_OPTS 
description: PIO configure options, see PIO configure utility for details
default value:  --disable-mct --disable-timing  
file: env_build.xml 
locked_stage: none 
 
name: PIO_DEBUG_LEVEL 
description: pio debug level
valid values: 0,1,2,3,4,5,6 
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: PIO_NUMTASKS 
description: pio number of io tasks
default value: -1 
file: env_run.xml 
locked_stage: none 
 
name: PIO_ROOT 
description: pio root processor
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: PIO_STRIDE 
description: mpi task stride between io tasks
default value: -1 
file: env_run.xml 
locked_stage: none 
 
name: PIO_TYPENAME 
description: pio io type: netcdf, pnetcdf, netcdf4p, netcdf4c
default value: netcdf 
file: env_run.xml 
locked_stage: none 
 
name: POP_AUTO_DECOMP 
description: if false, user must set the POP decomp, otherwise configure sets it
valid values: true,false 
default value: true 
 
name: POP_BLCKX 
description: Size of pop block in first horiz dimension.
    Value determined by generate_pop_decomp.pl which is called by configure.
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: POP_BLCKY 
description: Size of pop block in second horiz dimension.
    Value determined by generate_pop_decomp.pl which is called by configure.
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: POP_DECOMPTYPE 
description: pop block distribution type. 
    Value determined by generate_pop_decomp.pl which is called by configure
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: POP_MXBLCKS 
description: Max number of pop blocks per processor.
    Value determined by generate_pop_decomp.pl which is called by configure.
    Only expert users should edit this
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: PSTRID_ATM 
description: stride of mpi tasks for atm comp - currently should always be set to 1
valid values: 1 
default value: 1 
 
name: PSTRID_CPL 
description: stride of mpi tasks for cpl comp - currently should always be set to 1
valid values: 1 
default value: 1 
 
name: PSTRID_GLC 
description: stride of mpi tasks for glc comp - currently should always be set to 1
valid values: 1 
default value: 1 
 
name: PSTRID_ICE 
description: stride of mpi tasks for ice comp - currently should always be set to 1
valid values: 1 
default value: 1 
 
name: PSTRID_LND 
description: stride of mpi tasks for lnd comp - currently should always be set to 1
valid values: 1 
default value: 1 
 
name: PSTRID_OCN 
description: stride of mpi tasks for ocn comp - currently should always be set to 1
valid values: 1 
default value: 1 
 
name: PTS_LAT 
description: Points mode nearest latitudes
default value: -999.99 
file: env_run.xml 
locked_stage: none 
 
name: PTS_LON 
description: Points mode nearest longitudes
default value: -999.99 
file: env_run.xml 
locked_stage: none 
 
name: PTS_MODE 
description: Points mode logical for single point
valid values: TRUE,FALSE 
default value: FALSE 
file: env_case.xml 
locked_stage: create_newcase 
 
name: RESTART 
description: if RESTART is greater than 0, then case will automatically restart
        RESTART times before an eventual resubmit
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: REST_DATE 
description: date in yyyymmdd format, sets model restart write date with REST_OPTION and REST_N
default value: $STOP_DATE 
file: env_run.xml 
locked_stage: none 
 
name: REST_N 
description: sets model restart writes with REST_OPTION and REST_DATE
       (same options as STOP_N)
default value: $STOP_N 
file: env_run.xml 
locked_stage: none 
 
name: REST_OPTION 
description: sets frequency of model restart writes (same options as STOP_OPTION)
        with REST_N and REST_DATE
default value: $STOP_OPTION 
file: env_run.xml 
locked_stage: none 
 
name: RESUBMIT 
description: if RESUBMIT is greater than 0, then case will automatically resubmit 
        if that feature is supported in the run script
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: ROOTPE_ATM 
description: root atm mpi task
default value:   0 
 
name: ROOTPE_CPL 
description: root cpl mpi task
default value:   0 
 
name: ROOTPE_GLC 
description: root glc mpi task
default value:   0 
 
name: ROOTPE_ICE 
description: root ice mpi task
default value:  16 
 
name: ROOTPE_LND 
description: root lnd mpi task
default value:   0 
 
name: ROOTPE_OCN 
description: root ocn mpi task
default value: 256 
 
name: RUNDIR 
description: case run directory
default value: $EXEROOT/run 
file: env_build.xml 
locked_stage: none 
 
name: RUN_REFCASE 
description: Reference case for hybrid or branch runs
default value: case.std 
file: env_conf.xml 
locked_stage: configure -case 
 
name: RUN_REFDATE 
description: Reference date for hybrid or branch runs (yyyy-mm-dd).
        Used to determine the component dataset that the model starts from.
        Ignored for startup runs 
default value: 0001-01-01 
file: env_conf.xml 
locked_stage: configure -case 
 
name: RUN_STARTDATE 
description: Run start date (yyyy-mm-dd). Only used for startup or hybrid runs
        Ignored for branch runs. 
default value: 0001-01-01 
file: env_conf.xml 
locked_stage: configure -case 
 
name: RUN_TYPE 
description: Run initialization type
valid values: startup,hybrid,branch 
default value: startup 
file: env_conf.xml 
locked_stage: configure -case 
 
name: SAVE_TIMING 
description: logical to save timing files in rundir
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: SCRIPTSROOT 
description: CCSM source scripts directory location
default value: $CCSMROOT/scripts 
file: env_case.xml 
locked_stage: create_newcase 
 
name: SHAREROOT 
description: CCSM source models share code location
default value: $CCSMROOT/models/csm_share 
file: env_case.xml 
locked_stage: create_newcase 
 
name: SHR_MAP_DOPOLE 
description: invoke pole averaging corrections in shr_map_mod weights generation
valid values: TRUE,FALSE 
default value: TRUE 
file: env_run.xml 
locked_stage: none 
 
name: SMP_BUILD 
description: smp status of previous build, coded string. (DO NOT EDIT)
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: SMP_VALUE 
description: smp status of current setup, coded string (DO NOT EDIT)
default value: 0 
file: env_build.xml 
locked_stage: none 
 
name: START_TOD 
description: start time-of-day in universal time (seconds), should be between zero and 86400
default value: 0 
file: env_run.xml 
locked_stage: none 
 
name: STOP_DATE 
description: date in yyyymmdd format, sets the run length with STOP_OPTION and STOP_N,
        can be in addition to STOP_OPTION and STOP_N, negative value implies off
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: STOP_N 
description: sets the run length with STOP_OPTION and STOP_DATE
default value: 5 
file: env_run.xml 
locked_stage: none 
 
name: STOP_OPTION 
description: sets the run length with STOP_N and STOP_DATE
        STOP_OPTION alarms are:
        [none/never], turns option off
        [nstep/s]   , stops every STOP_N nsteps  , relative to current run start time
        [nsecond/s] , stops every STOP_N nseconds, relative to current run start time
        [nminute/s] , stops every STOP_N nminutes, relative to current run start time
        [nhour/s]   , stops every STOP_N nhours  , relative to current run start time
        [nday/s]    , stops every STOP_N ndays   , relative to current run start time
        [nmonth/s]  , stops every STOP_N nmonths , relative to current run start time
        [nyear/s]   , stops every STOP_N nyears  , relative to current run start time
        [date]      , stops at STOP_DATE value
        [ifdays0]   , stops at STOP_N calendar day value and seconds equal 0
        [end]       , stops at end
valid values: none,never,nsteps,nstep,nseconds,nsecond,nminutes,nminute,nhours,nhour,ndays,nday,nmonths,nmonth,nyears,nyear,date,ifdays0,end 
default value: ndays 
file: env_run.xml 
locked_stage: none 
 
name: TIMER_LEVEL 
description: timer output depth
valid values: 1,2,3,4,5,6,7,8,9,10 
default value: 4 
file: env_run.xml 
locked_stage: none 
 
name: TIMING_BARRIER 
description: if TRUE, turns on the timing barrier calls in the model
valid values: TRUE,FALSE 
default value: FALSE 
file: env_run.xml 
locked_stage: none 
 
name: TOTALPES 
description: total number of pes (derived automatically - DO NOT EDIT)
default value: 0 
 
name: TPROF_DATE 
description: yyyymmdd format, sets timing output file date (like REST_DATE)
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: TPROF_N 
description: sets timing output file frequency (like REST_N)
default value: -999 
file: env_run.xml 
locked_stage: none 
 
name: TPROF_OPTION 
description: sets timing output file frequency (like REST_OPTION but relative to run start date)
default value: never 
file: env_run.xml 
locked_stage: none 
 
name: TURB_FLUX_SCHEME 
description: choose relevant scheme in shr_flux_mod
valid values: 0,1 
default value: 1 
file: env_run.xml 
locked_stage: none 
 
name: USE_ESMF_LIB 
description: TRUE implies using the ESMF library specified by ESMF_LIBDIR or ESMFMKFILE
valid values: TRUE,FALSE 
default value: FALSE 
file: env_build.xml 
locked_stage: none 
 
name: USE_MPISERIAL 
description: TRUE implies code is built using the mpiserial library.
        If TRUE, the MPISERIAL_SUPPORT must also be TRUE.
        FALSE (default) implies that code is built with a real MPI library.
        If a job uses only one MPI task (e.g. single-column CAM and CLM), 
        the mpiserial lib may be an alternative to real mpi lib
valid values: TRUE,FALSE 
default value: FALSE 
file: env_conf.xml 
locked_stage: configure -case 
 
name: UTILROOT 
description: CCSM source scripts utils directory location
default value: $CCSMROOT/scripts/ccsm_utils 
file: env_case.xml 
locked_stage: create_newcase 
 
name: VECT_MAP 
description: invoke vector mapping option
valid values: none,npfix,cart3d,cart3d_diag,cart3d_uvw,cart3d_uvw_diag 
default value: npfix 
file: env_run.xml 
locked_stage: none 
 
name: XMLMODE 
description: xml format option, expert removes extra comments from env xml files
valid values: normal,expert 
default value: normal 
file: env_case.xml 
locked_stage: create_newcase 
 
