NAM_CONF

It contains the model configuration parameters common to all the models. They are included in the module MODD_CONF.

NAM_CONF content

Fortran name	Fortran type	Default value
CCONF	CHARACTER(LEN=5)	‘START’
LFLAT	LOGICAL	.FALSE.
CEQNSYS	CHARACTER(LEN=3)	‘DUR’
LFORCING	LOGICAL	.FALSE.
NMODEL	INTEGER	1
NVERB	INTEGER	5
NHALO	INTEGER	1
JPHEXT	INTEGER	1
CSPLIT	CHARACTER(LEN=10)	‘YSPLITTING’
LLG	LOGICAL	.FALSE.
LINIT_LG	LOGICAL	.FALSE.
CINIT_LG	CHARACTER(LEN=6)	‘BACKUP’
LNOMIXLG	LOGICAL	.FALSE.
CEXP	CHARACTER(LEN=32)	‘EXP01’
CSEG	CHARACTER(LEN=32)	‘SEG01’
LCHECK	LOGICAL	.FALSE.

• CCONF : configuration of all models

  • ‘START’ : for start configuration

  • ‘RESTA’ : for restart configuration

• CEQNSYS : Equation system resolved by the MESONH model

  • ‘LHE’ : Lipps and HEmler anelastic system

  • ‘DUR’ : approximated form of the DURran version of the anelastic sytem

  • ‘MAE’ : classical Modified Anelastic Equations but with not any approximation in the momentum equation

• LFLAT : Flag for zero ororography

  • .TRUE. = no orography (zs=0.)

  • .FALSE. = the orography is not zero everywhere

• LFORCING : Flag to use forcing sources

  • .TRUE. : add forcing sources

  • .FALSE. : no forcing sources

• NMODEL : Number of nested models

• NVERB : Level of informations on output-listing

  • 0 : for minimum of prints

  • 5 : for intermediate level of prints

  • 10 : for maximum of prints

• NHALO : Size of the halo for parallel distribution. This variable is related to computer performance but has no impact on simulation results. NHALO must be equal to 3 for WENO5 cases in parallel runs.

• JPHEXT : Horizontal External points number. JPHEXT must be equal to 3 for cyclic cases with WENO5.

• CSPLIT : Kind of domain splitting for parallel distribution. This variable is related to computer performance but has no impact on simulation results

  • ‘BSPLITTING’ : domain is decomposed in Box along X and Y

  • ‘XSPLITTING’ : the X direction is splitted in stripes along Y

  • ‘YSPLITTING’ : the Y direction is splitted in stripes along X

• LLG : Flag to use Lagrangian variables

• LINIT_LG : Flag to reinitialize Lagrangian variables (with LLG=.T.)

• CINIT_LG : with LINIT_LG=T :

  • ‘BACKUP’ : each time a backup file is written

  • other string : : only when starting a new segment (CCONF=’RESTA’)

• LNOMIXLG : Flag to unset the turbulence for LG variables. You must have LNOMIXLG=.TRUE. with CSCONV=’EDKF’

• CEXP : Experiment name (name of the set of runs you have performed or want to perform on the same physical subject)

• CSEG : Name of segment (name of the future runs you want to perform)

• LCHECK : Flag for testing reproducibility

Note

From these last two information, we built the names of the different MESONH backup files: CEXP.n.CSEG.nbr, where n represents the number of the model which generates this output and nbr is the number of the outfile. For instance, if CEXP=’HYDRO’ and CSEG=’INIT1’ and we use only one model (no gridnesting) the different output will be called: HYDRO.1.INIT1.001, HYDRO.1.INIT1.002, …

By default, nbr is coded on 3 digits. This can be modified with the NFILE_NUM_MAX variable of the NAM_CONFIO namelist.