| 1 | MODULE usrdef_nam |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE usrdef_nam *** |
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| 4 | !! |
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| 5 | !! === AM98 configuration === |
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| 6 | !! |
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| 7 | !! User defined : set the domain characteristics of a user configuration |
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| 8 | !!====================================================================== |
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| 9 | !! History : 4.0 ! 2016-03 (S. Flavoni, G. Madec) Original code |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! usr_def_nam : read user defined namelist and set global domain size |
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| 14 | !! usr_def_hgr : initialize the horizontal mesh |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE dom_oce , ONLY: nimpp, njmpp ! ocean space and time domain |
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| 17 | USE par_oce ! ocean space and time domain |
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| 18 | USE phycst ! physical constants |
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| 19 | ! |
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| 20 | USE in_out_manager ! I/O manager |
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| 21 | USE lib_mpp ! MPP library |
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| 22 | |
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| 23 | IMPLICIT NONE |
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| 24 | PRIVATE |
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| 25 | |
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| 26 | PUBLIC usr_def_nam ! called in nemogcm.F90 module |
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| 27 | ! !!* namusr_def namelist *!! |
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| 28 | INTEGER , PUBLIC :: nn_AM98 ! 1/nn_AM98 = the resolution chosen in degrees and thus defining the horizontal domain size |
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| 29 | REAL(wp), PUBLIC :: rn_theta ! rotation angle (in degree) of the grid |
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| 30 | REAL(wp), PUBLIC :: rn_tau ! wind stress on the surface [N/m2] |
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| 31 | REAL(wp), PUBLIC :: rn_f0 ! f-plan coriolis parameter [1/s] |
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| 32 | REAL(wp), PUBLIC :: rn_beta ! beta-plan coriolis parameter [1/m.s] |
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| 33 | REAL(wp), PUBLIC :: rn_modified_grav ! modified gravity [m/s2] |
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| 34 | REAL(wp), PUBLIC :: rn_rfr ! layer friction [1/s] |
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| 35 | ! |
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| 36 | !!---------------------------------------------------------------------- |
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| 37 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 38 | !! $Id: usrdef_nam.F90 11536 2019-09-11 13:54:18Z smasson $ |
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| 39 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 40 | !!---------------------------------------------------------------------- |
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| 41 | CONTAINS |
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| 42 | |
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| 43 | SUBROUTINE usr_def_nam( cd_cfg, kk_cfg, kpi, kpj, kpk, kperio ) |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | !! *** ROUTINE dom_nam *** |
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| 46 | !! |
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| 47 | !! ** Purpose : read user defined namelist and define the domain size |
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| 48 | !! |
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| 49 | !! ** Method : read in namusr_def containing all the user specific namelist parameter |
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| 50 | !! |
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| 51 | !! Here AM98 configuration |
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| 52 | !! |
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| 53 | !! ** input : - namusr_def namelist found in namelist_cfg |
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| 54 | !!---------------------------------------------------------------------- |
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| 55 | CHARACTER(len=*), INTENT(out) :: cd_cfg ! configuration name |
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| 56 | INTEGER , INTENT(out) :: kk_cfg ! configuration resolution |
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| 57 | INTEGER , INTENT(out) :: kpi, kpj, kpk ! global domain sizes |
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| 58 | INTEGER , INTENT(out) :: kperio ! lateral global domain b.c. |
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| 59 | ! |
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| 60 | INTEGER :: ios ! Local integer |
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| 61 | REAL(wp) :: ze1, zgl, zbl ! gridspacing, length of the biggest square |
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| 62 | !! |
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| 63 | NAMELIST/namusr_def/ nn_AM98, rn_theta, jpkglo, rn_tau, & ! |
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| 64 | & rn_f0 ,rn_beta, & ! coriolis parameter |
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| 65 | & rn_modified_grav, rn_rfr ! |
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| 66 | !!---------------------------------------------------------------------- |
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| 67 | ! |
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| 68 | READ ( numnam_cfg, namusr_def, IOSTAT = ios, ERR = 902 ) |
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| 69 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namusr_def in configuration namelist' ) |
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| 70 | ! |
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| 71 | IF(lwm) WRITE( numond, namusr_def ) |
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| 72 | ! |
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| 73 | cd_cfg = 'AM98' ! name & resolution (not used) |
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| 74 | |
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| 75 | #if defined key_agrif |
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| 76 | IF (.NOT.Agrif_root()) nn_AM98 = Agrif_parent(nn_AM98) * Agrif_irhox() |
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| 77 | #endif |
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| 78 | |
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| 79 | kk_cfg = nn_AM98 |
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| 80 | |
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| 81 | ! square domain of 2000km x 2000km with dx = dy = 100km |
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| 82 | ! kpi = 20 * nn_AM98 + 2 ! Global Domain size |
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| 83 | ! kpj = 20 * nn_AM98 + 2 |
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| 84 | |
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| 85 | ! Number of cells |
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| 86 | ! lenght of the biggest square + 2 ghost cells on each side |
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| 87 | ze1 = 100000._wp / REAL(nn_AM98, wp) ! (100km) gridspacing [m] |
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| 88 | zgl = 2000000._wp + 4._wp*ze1 ! length side square + ghostcells [m] |
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| 89 | !zbl = zgl / COS( rn_theta * rad ) ! length side bigger domain [m] |
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| 90 | zbl = zgl * ( COS( rn_theta * rad ) + SIN( rn_theta * rad ) ) ! length side bigger domain [m] |
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| 91 | |
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| 92 | kpi = ceiling(zbl / ze1 ) ! Global Domain size + ghost cells |
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| 93 | kpj = ceiling(zbl / ze1 ) ! Global Domain size + ghost cells |
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| 94 | |
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| 95 | !!an |
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| 96 | !#if defined key_agrif |
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| 97 | ! IF( .NOT. Agrif_Root() ) THEN |
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| 98 | ! kpi = nbcellsx + 2 + 2*nbghostcells |
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| 99 | ! kpj = nbcellsy + 2 + 2*nbghostcells |
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| 100 | ! ENDIF |
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| 101 | !#endif |
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| 102 | !!an |
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| 103 | ! |
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| 104 | IF( rn_modified_grav /= 0._wp) grav = rn_modified_grav ! update the gravity |
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| 105 | ! |
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| 106 | kpk = jpkglo |
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| 107 | ! ! Set the lateral boundary condition of the global domain |
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| 108 | kperio = 0 ! AM98 configuration : closed domain |
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| 109 | ! |
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| 110 | ! ! control print |
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| 111 | IF(lwp) THEN |
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| 112 | WRITE(numout,*) ' ' |
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| 113 | WRITE(numout,*) 'usr_def_nam : read the user defined namelist (namusr_def) in namelist_cfg' |
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| 114 | WRITE(numout,*) '~~~~~~~~~~~ ' |
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| 115 | WRITE(numout,*) ' Namelist namusr_def : AM98 case' |
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| 116 | WRITE(numout,*) ' inverse resolution & implied domain size nn_AM98 = ', nn_AM98 |
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| 117 | #if defined key_agrif |
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| 118 | IF( Agrif_Root() ) THEN |
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| 119 | #endif |
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| 120 | WRITE(numout,*) ' jpiglo = Nx*nn_AM98+4 jpiglo = ', kpi |
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| 121 | WRITE(numout,*) ' jpjglo = Ny*nn_AM98+4 jpjglo = ', kpj |
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| 122 | #if defined key_agrif |
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| 123 | ENDIF |
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| 124 | #endif |
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| 125 | WRITE(numout,*) ' number of model levels jpkglo = ', kpk |
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| 126 | WRITE(numout,*) ' ' |
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| 127 | WRITE(numout,*) ' Lateral b.c. of the global domain set to closed jperio = ', kperio |
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| 128 | ENDIF |
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| 129 | ! |
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| 130 | END SUBROUTINE usr_def_nam |
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| 131 | |
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| 132 | !!====================================================================== |
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| 133 | END MODULE usrdef_nam |
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