1 | MODULE domhgr |
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2 | !!============================================================================== |
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3 | !! *** MODULE domhgr *** |
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4 | !! Ocean initialization : domain initialization |
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5 | !!============================================================================== |
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6 | !! History : OPA ! 1988-03 (G. Madec) Original code |
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7 | !! 7.0 ! 1996-01 (G. Madec) terrain following coordinates |
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8 | !! 8.0 ! 1997-02 (G. Madec) print mesh informations |
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9 | !! 8.1 ! 1999-11 (M. Imbard) NetCDF format with IO-IPSL |
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10 | !! 8.2 ! 2000-08 (D. Ludicone) Reduced section at Bab el Mandeb |
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11 | !! - ! 2001-09 (M. Levy) eel config: grid in km, beta-plane |
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12 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and module, namelist |
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13 | !! - ! 2004-01 (A.M. Treguier, J.M. Molines) Case 4 (Mercator mesh) |
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14 | !! use of parameters in par_CONFIG-Rxx.h90, not in namelist |
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15 | !! - ! 2004-05 (A. Koch-Larrouy) Add Gyre configuration |
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16 | !! 3.7 ! 2015-09 (G. Madec, S. Flavoni) add cell surface and their inverse |
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17 | !! add optional read of e1e2u & e1e2v |
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18 | !! - ! 2016-04 (S. Flavoni) change configuration's interface: |
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19 | !! read file or CALL usr_def module to compute |
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20 | !! horizontal grid (example given for GYRE) |
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21 | !!---------------------------------------------------------------------- |
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22 | |
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23 | !!---------------------------------------------------------------------- |
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24 | !! dom_hgr : initialize the horizontal mesh |
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25 | !! hgr_read : read "coordinate" NetCDF file |
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26 | !!---------------------------------------------------------------------- |
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27 | USE dom_oce ! ocean space and time domain |
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28 | USE par_oce ! ocean space and time domain |
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29 | USE phycst ! physical constants |
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30 | USE domwri ! write 'meshmask.nc' & 'coordinate_e1e2u_v.nc' files |
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31 | ! |
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32 | USE in_out_manager ! I/O manager |
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33 | USE lib_mpp ! MPP library |
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34 | USE timing ! Timing |
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35 | USE usrdef ! User defined routine |
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36 | |
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37 | IMPLICIT NONE |
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38 | PRIVATE |
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39 | |
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40 | REAL(wp) :: glam0, gphi0 ! variables corresponding to parameters ppglam0 ppgphi0 set in namelist !SF modify some routines???? |
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41 | |
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42 | PUBLIC dom_hgr ! called by domain.F90 |
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43 | |
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44 | !!---------------------------------------------------------------------- |
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45 | !! NEMO/OPA 3.7 , NEMO Consortium (2014) |
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46 | !! $Id$ |
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47 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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48 | !!---------------------------------------------------------------------- |
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49 | CONTAINS |
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50 | |
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51 | SUBROUTINE dom_hgr |
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52 | !!---------------------------------------------------------------------- |
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53 | !! *** ROUTINE dom_hgr *** |
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54 | !! |
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55 | !! ** Purpose : Compute the geographical position (in degre) of the |
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56 | !! model grid-points, the horizontal scale factors (in meters) and |
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57 | !! the Coriolis factor (in s-1). |
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58 | !! |
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59 | !! ** Method : The geographical position of the model grid-points is |
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60 | !! defined from analytical functions, fslam and fsphi, the deriva- |
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61 | !! tives of which gives the horizontal scale factors e1,e2. |
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62 | !! Defining two function fslam and fsphi and their derivatives in |
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63 | !! the two horizontal directions (fse1 and fse2), the model grid- |
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64 | !! point position and scale factors are given by: |
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65 | !! t-point: |
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66 | !! glamt(i,j) = fslam(i ,j ) e1t(i,j) = fse1(i ,j ) |
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67 | !! gphit(i,j) = fsphi(i ,j ) e2t(i,j) = fse2(i ,j ) |
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68 | !! u-point: |
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69 | !! glamu(i,j) = fslam(i+1/2,j ) e1u(i,j) = fse1(i+1/2,j ) |
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70 | !! gphiu(i,j) = fsphi(i+1/2,j ) e2u(i,j) = fse2(i+1/2,j ) |
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71 | !! v-point: |
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72 | !! glamv(i,j) = fslam(i ,j+1/2) e1v(i,j) = fse1(i ,j+1/2) |
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73 | !! gphiv(i,j) = fsphi(i ,j+1/2) e2v(i,j) = fse2(i ,j+1/2) |
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74 | !! f-point: |
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75 | !! glamf(i,j) = fslam(i+1/2,j+1/2) e1f(i,j) = fse1(i+1/2,j+1/2) |
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76 | !! gphif(i,j) = fsphi(i+1/2,j+1/2) e2f(i,j) = fse2(i+1/2,j+1/2) |
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77 | !! Where fse1 and fse2 are defined by: |
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78 | !! fse1(i,j) = ra * rad * SQRT( (cos(phi) di(fslam))**2 |
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79 | !! + di(fsphi) **2 )(i,j) |
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80 | !! fse2(i,j) = ra * rad * SQRT( (cos(phi) dj(fslam))**2 |
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81 | !! + dj(fsphi) **2 )(i,j) |
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82 | !! |
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83 | !! The coriolis factor is given at z-point by: |
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84 | !! ff = 2.*omega*sin(gphif) (in s-1) |
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85 | !! |
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86 | !! This routine is given as an example, it must be modified |
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87 | !! following the user s desiderata. nevertheless, the output as |
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88 | !! well as the way to compute the model grid-point position and |
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89 | !! horizontal scale factors must be respected in order to insure |
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90 | !! second order accuracy schemes. |
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91 | !! |
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92 | !! N.B. If the domain is periodic, verify that scale factors are also |
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93 | !! periodic, and the coriolis term again. |
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94 | !! |
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95 | !! ** Action : - define glamt, glamu, glamv, glamf: longitude of t-, |
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96 | !! u-, v- and f-points (in degre) |
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97 | !! - define gphit, gphiu, gphiv, gphit: latitude of t-, |
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98 | !! u-, v- and f-points (in degre) |
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99 | !! define e1t, e2t, e1u, e2u, e1v, e2v, e1f, e2f: horizontal |
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100 | !! scale factors (in meters) at t-, u-, v-, and f-points. |
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101 | !! define ff: coriolis factor at f-point |
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102 | !! |
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103 | !! References : Marti, Madec and Delecluse, 1992, JGR |
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104 | !! Madec, Imbard, 1996, Clim. Dyn. |
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105 | !!---------------------------------------------------------------------- |
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106 | INTEGER :: ji, jj ! dummy loop indices |
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107 | INTEGER :: ii0, ii1, ij0, ij1, iff ! temporary integers |
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108 | INTEGER :: ijeq ! index of equator T point (used in case 4) |
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109 | REAL(wp) :: zti, zui, zvi, zfi ! local scalars |
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110 | REAL(wp) :: ztj, zuj, zvj, zfj ! - - |
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111 | REAL(wp) :: zphi0, zbeta, znorme ! |
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112 | REAL(wp) :: zarg, zf0, zminff, zmaxff |
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113 | REAL(wp) :: zlam1, zcos_alpha, zim1 , zjm1 , ze1, ze1deg |
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114 | REAL(wp) :: zphi1, zsin_alpha, zim05, zjm05 |
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115 | INTEGER :: isrow ! index for ORCA1 starting row |
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116 | INTEGER :: ie1e2u_v ! fag for u- & v-surface read in coordinate file or not |
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117 | !!---------------------------------------------------------------------- |
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118 | ! |
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119 | IF( nn_timing == 1 ) CALL timing_start('dom_hgr') |
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120 | ! |
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121 | IF(lwp) THEN |
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122 | WRITE(numout,*) |
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123 | WRITE(numout,*) 'dom_hgr : define the horizontal mesh from ithe following par_oce parameters ' |
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124 | WRITE(numout,*) '~~~~~~~ type of horizontal mesh jphgr_msh = ', jphgr_msh |
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125 | WRITE(numout,*) ' position of the first row and ppglam0 = ', ppglam0 |
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126 | WRITE(numout,*) ' column grid-point (degrees) ppgphi0 = ', ppgphi0 |
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127 | WRITE(numout,*) ' zonal grid-spacing (degrees) ppe1_deg = ', ppe1_deg |
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128 | WRITE(numout,*) ' meridional grid-spacing (degrees) ppe2_deg = ', ppe2_deg |
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129 | WRITE(numout,*) ' zonal grid-spacing (meters) ppe1_m = ', ppe1_m |
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130 | WRITE(numout,*) ' meridional grid-spacing (meters) ppe2_m = ', ppe2_m |
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131 | ENDIF |
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132 | ! |
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133 | ! |
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134 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
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135 | ! |
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136 | CASE ( 0 ) !== read in coordinate.nc file ==! |
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137 | ! |
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138 | IF(lwp) WRITE(numout,*) |
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139 | IF(lwp) WRITE(numout,*) ' curvilinear coordinate on the sphere read in "coordinate" file' |
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140 | ! |
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141 | ie1e2u_v = 0 ! set to unread e1e2u and e1e2v |
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142 | iff = 0 ! set to unread iff |
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143 | ! |
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144 | CALL hgr_read( ie1e2u_v, iff ) ! read the coordinate.nc file !SF to be changed in mesh_mask |
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145 | ! |
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146 | IF( ie1e2u_v == 0 ) THEN ! e1e2u and e1e2v have not been read: compute them |
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147 | ! ! e2u and e1v does not include a reduction in some strait: apply reduction |
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148 | e1e2u (:,:) = e1u(:,:) * e2u(:,:) |
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149 | e1e2v (:,:) = e1v(:,:) * e2v(:,:) |
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150 | ENDIF |
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151 | ! |
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152 | CASE ( 1 ) !== geographical mesh on the sphere with regular (in degree) grid-spacing ==! |
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153 | ! |
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154 | IF(lwp) WRITE(numout,*) |
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155 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere with regular grid-spacing' |
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156 | IF(lwp) WRITE(numout,*) ' given by ppe1_deg and ppe2_deg' |
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157 | ! |
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158 | DO jj = 1, jpj |
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159 | DO ji = 1, jpi |
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160 | zti = REAL( ji - 1 + nimpp - 1 ) ; ztj = REAL( jj - 1 + njmpp - 1 ) |
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161 | zui = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = REAL( jj - 1 + njmpp - 1 ) |
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162 | zvi = REAL( ji - 1 + nimpp - 1 ) ; zvj = REAL( jj - 1 + njmpp - 1 ) + 0.5 |
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163 | zfi = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = REAL( jj - 1 + njmpp - 1 ) + 0.5 |
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164 | ! Longitude |
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165 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
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166 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
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167 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
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168 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
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169 | ! Latitude |
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170 | gphit(ji,jj) = ppgphi0 + ppe2_deg * ztj |
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171 | gphiu(ji,jj) = ppgphi0 + ppe2_deg * zuj |
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172 | gphiv(ji,jj) = ppgphi0 + ppe2_deg * zvj |
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173 | gphif(ji,jj) = ppgphi0 + ppe2_deg * zfj |
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174 | ! e1 |
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175 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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176 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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177 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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178 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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179 | ! e2 |
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180 | e2t(ji,jj) = ra * rad * ppe2_deg |
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181 | e2u(ji,jj) = ra * rad * ppe2_deg |
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182 | e2v(ji,jj) = ra * rad * ppe2_deg |
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183 | e2f(ji,jj) = ra * rad * ppe2_deg |
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184 | END DO |
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185 | END DO |
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186 | ! |
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187 | CASE ( 2:3 ) !== f- or beta-plane with regular grid-spacing ==! |
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188 | ! |
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189 | IF(lwp) WRITE(numout,*) |
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190 | IF(lwp) WRITE(numout,*) ' f- or beta-plane with regular grid-spacing' |
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191 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
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192 | ! |
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193 | ! Position coordinates (in kilometers) |
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194 | ! ========== |
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195 | glam0 = 0._wp |
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196 | gphi0 = - ppe2_m * 1.e-3 |
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197 | ! |
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198 | #if defined key_agrif |
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199 | IF ( cp_cfg == 'eel' .AND. jp_cfg == 6 ) THEN ! for EEL6 configuration only |
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200 | IF( .NOT. Agrif_Root() ) THEN |
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201 | glam0 = Agrif_Parent(glam0) + (Agrif_ix())*Agrif_Parent(ppe1_m) * 1.e-3 |
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202 | gphi0 = Agrif_Parent(gphi0) + (Agrif_iy())*Agrif_Parent(ppe2_m) * 1.e-3 |
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203 | ppe1_m = Agrif_Parent(ppe1_m)/Agrif_Rhox() |
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204 | ppe2_m = Agrif_Parent(ppe2_m)/Agrif_Rhoy() |
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205 | ENDIF |
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206 | ENDIF |
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207 | #endif |
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208 | DO jj = 1, jpj |
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209 | DO ji = 1, jpi |
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210 | glamt(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( REAL( ji - 1 + nimpp - 1 ) ) |
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211 | glamu(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( REAL( ji - 1 + nimpp - 1 ) + 0.5 ) |
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212 | glamv(ji,jj) = glamt(ji,jj) |
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213 | glamf(ji,jj) = glamu(ji,jj) |
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214 | ! |
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215 | gphit(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( REAL( jj - 1 + njmpp - 1 ) ) |
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216 | gphiu(ji,jj) = gphit(ji,jj) |
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217 | gphiv(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( REAL( jj - 1 + njmpp - 1 ) + 0.5 ) |
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218 | gphif(ji,jj) = gphiv(ji,jj) |
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219 | END DO |
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220 | END DO |
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221 | ! |
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222 | ! Horizontal scale factors (in meters) |
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223 | ! ====== |
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224 | e1t(:,:) = ppe1_m ; e2t(:,:) = ppe2_m |
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225 | e1u(:,:) = ppe1_m ; e2u(:,:) = ppe2_m |
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226 | e1v(:,:) = ppe1_m ; e2v(:,:) = ppe2_m |
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227 | e1f(:,:) = ppe1_m ; e2f(:,:) = ppe2_m |
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228 | ! |
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229 | CASE ( 4 ) !== geographical mesh on the sphere, isotropic MERCATOR type ==! |
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230 | ! |
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231 | IF(lwp) WRITE(numout,*) |
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232 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere, MERCATOR type' |
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233 | IF(lwp) WRITE(numout,*) ' longitudinal/latitudinal spacing given by ppe1_deg' |
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234 | IF ( ppgphi0 == -90 ) CALL ctl_stop( ' Mercator grid cannot start at south pole !!!! ' ) |
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235 | ! |
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236 | ! Find index corresponding to the equator, given the grid spacing e1_deg |
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237 | ! and the (approximate) southern latitude ppgphi0. |
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238 | ! This way we ensure that the equator is at a "T / U" point, when in the domain. |
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239 | ! The formula should work even if the equator is outside the domain. |
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240 | zarg = rpi / 4. - rpi / 180. * ppgphi0 / 2. |
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241 | ijeq = ABS( 180./rpi * LOG( COS( zarg ) / SIN( zarg ) ) / ppe1_deg ) |
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242 | IF( ppgphi0 > 0 ) ijeq = -ijeq |
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243 | ! |
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244 | IF(lwp) WRITE(numout,*) ' Index of the equator on the MERCATOR grid:', ijeq |
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245 | ! |
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246 | DO jj = 1, jpj |
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247 | DO ji = 1, jpi |
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248 | zti = REAL( ji - 1 + nimpp - 1 ) ; ztj = REAL( jj - ijeq + njmpp - 1 ) |
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249 | zui = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = REAL( jj - ijeq + njmpp - 1 ) |
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250 | zvi = REAL( ji - 1 + nimpp - 1 ) ; zvj = REAL( jj - ijeq + njmpp - 1 ) + 0.5 |
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251 | zfi = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = REAL( jj - ijeq + njmpp - 1 ) + 0.5 |
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252 | ! Longitude |
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253 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
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254 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
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255 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
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256 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
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257 | ! Latitude |
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258 | gphit(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* ztj ) ) |
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259 | gphiu(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zuj ) ) |
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260 | gphiv(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zvj ) ) |
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261 | gphif(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zfj ) ) |
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262 | ! e1 |
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263 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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264 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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265 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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266 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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267 | ! e2 |
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268 | e2t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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269 | e2u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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270 | e2v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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271 | e2f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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272 | END DO |
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273 | END DO |
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274 | ! |
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275 | CASE ( 5 ) !== beta-plane with regular grid-spacing and rotated domain ==! (GYRE configuration) |
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276 | ! |
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277 | IF(lwp) WRITE(numout,*) |
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278 | IF(lwp) WRITE(numout,*) ' beta-plane with regular grid-spacing and rotated domain (GYRE configuration)' |
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279 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
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280 | ! |
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281 | IF(lwp) THEN |
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282 | WRITE(numout,*) ' control print of value of ln_read_cfg = ', ln_read_cfg |
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283 | ENDIF |
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284 | IF (ln_read_cfg) THEN |
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285 | IF(lwp) WRITE(numout,*) ' ln_read_cfg read input files' |
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286 | ie1e2u_v = 0 ! set to unread e1e2u and e1e2v |
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287 | iff = 0 ! set to unread ff |
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288 | ! |
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289 | CALL hgr_read( ie1e2u_v, iff ) ! read the coordinate.nc file !SF to be changed in mesh_mask |
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290 | ! |
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291 | IF( ie1e2u_v == 0 ) THEN ! e1e2u and e1e2v have not been read: compute them |
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292 | ! ! e2u and e1v does not include a |
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293 | ! reduction in some strait: apply reduction |
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294 | e1e2u (:,:) = e1u(:,:) * e2u(:,:) |
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295 | e1e2v (:,:) = e1v(:,:) * e2v(:,:) |
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296 | ENDIF |
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297 | ELSE |
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298 | IF(lwp) WRITE(numout,*) ' ln_read_cfg CALL user_defined module' |
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299 | CALL usr_def_hgr( nbench , jp_cfg , & |
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300 | & ff, & |
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301 | & glamt , glamu , glamv , glamf , & |
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302 | & gphit , gphiu , gphiv , gphif , & |
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303 | & e1t , e1u , e1v , e1f , & |
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304 | & e2t , e2u , e2v , e2f , & |
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305 | & e1e2u , e1e2v , e2_e1u , e1_e2v ) |
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306 | ! |
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307 | ENDIF |
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308 | ! |
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309 | CASE DEFAULT |
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310 | WRITE(ctmp1,*) ' bad flag value for jphgr_msh = ', jphgr_msh |
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311 | CALL ctl_stop( ctmp1 ) |
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312 | ! |
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313 | END SELECT |
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314 | |
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315 | ! associated horizontal metrics |
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316 | ! ----------------------------- |
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317 | ! |
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318 | r1_e1t(:,:) = 1._wp / e1t(:,:) ; r1_e2t (:,:) = 1._wp / e2t(:,:) |
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319 | r1_e1u(:,:) = 1._wp / e1u(:,:) ; r1_e2u (:,:) = 1._wp / e2u(:,:) |
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320 | r1_e1v(:,:) = 1._wp / e1v(:,:) ; r1_e2v (:,:) = 1._wp / e2v(:,:) |
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321 | r1_e1f(:,:) = 1._wp / e1f(:,:) ; r1_e2f (:,:) = 1._wp / e2f(:,:) |
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322 | ! |
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323 | e1e2t (:,:) = e1t(:,:) * e2t(:,:) ; r1_e1e2t(:,:) = 1._wp / e1e2t(:,:) |
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324 | e1e2f (:,:) = e1f(:,:) * e2f(:,:) ; r1_e1e2f(:,:) = 1._wp / e1e2f(:,:) |
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325 | IF( jphgr_msh /= 0 ) THEN ! e1e2u and e1e2v have not been set: compute them |
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326 | e1e2u (:,:) = e1u(:,:) * e2u(:,:) |
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327 | e1e2v (:,:) = e1v(:,:) * e2v(:,:) |
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328 | ENDIF |
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329 | r1_e1e2u(:,:) = 1._wp / e1e2u(:,:) ! compute their invert in both cases |
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330 | r1_e1e2v(:,:) = 1._wp / e1e2v(:,:) |
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331 | ! |
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332 | e2_e1u(:,:) = e2u(:,:) / e1u(:,:) |
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333 | e1_e2v(:,:) = e1v(:,:) / e2v(:,:) |
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334 | |
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335 | IF( lwp .AND. nn_print >=1 .AND. .NOT.ln_rstart ) THEN ! Control print : Grid informations (if not restart) |
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336 | WRITE(numout,*) |
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337 | WRITE(numout,*) ' longitude and e1 scale factors' |
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338 | WRITE(numout,*) ' ------------------------------' |
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339 | WRITE(numout,9300) ( ji, glamt(ji,1), glamu(ji,1), & |
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340 | glamv(ji,1), glamf(ji,1), & |
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341 | e1t(ji,1), e1u(ji,1), & |
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342 | e1v(ji,1), e1f(ji,1), ji = 1, jpi,10) |
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343 | 9300 FORMAT( 1x, i4, f8.2,1x, f8.2,1x, f8.2,1x, f8.2, 1x, & |
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344 | f19.10, 1x, f19.10, 1x, f19.10, 1x, f19.10 ) |
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345 | ! |
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346 | WRITE(numout,*) |
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347 | WRITE(numout,*) ' latitude and e2 scale factors' |
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348 | WRITE(numout,*) ' -----------------------------' |
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349 | WRITE(numout,9300) ( jj, gphit(1,jj), gphiu(1,jj), & |
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350 | & gphiv(1,jj), gphif(1,jj), & |
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351 | & e2t (1,jj), e2u (1,jj), & |
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352 | & e2v (1,jj), e2f (1,jj), jj = 1, jpj, 10 ) |
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353 | ENDIF |
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354 | |
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355 | |
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356 | ! ================= ! |
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357 | ! Coriolis factor ! |
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358 | ! ================= ! |
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359 | |
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360 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
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361 | ! |
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362 | CASE ( 0, 1, 4 ) ! mesh on the sphere |
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363 | ! |
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364 | ff(:,:) = 2. * omega * SIN( rad * gphif(:,:) ) |
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365 | ! |
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366 | CASE ( 2 ) ! f-plane at ppgphi0 |
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367 | ! |
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368 | ff(:,:) = 2. * omega * SIN( rad * ppgphi0 ) |
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369 | ! |
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370 | IF(lwp) WRITE(numout,*) ' f-plane: Coriolis parameter = constant = ', ff(1,1) |
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371 | ! |
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372 | CASE ( 3 ) ! beta-plane |
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373 | ! |
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374 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
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375 | zphi0 = ppgphi0 - REAL( jpjglo/2) * ppe2_m / ( ra * rad ) ! latitude of the first row F-points |
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376 | ! |
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377 | #if defined key_agrif |
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378 | IF( cp_cfg == 'eel' .AND. jp_cfg == 6 ) THEN ! for EEL6 configuration only |
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379 | IF( .NOT.Agrif_Root() ) THEN |
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380 | zphi0 = ppgphi0 - REAL( Agrif_Parent(jpjglo)/2)*Agrif_Parent(ppe2_m) / (ra * rad) |
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381 | ENDIF |
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382 | ENDIF |
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383 | #endif |
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384 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
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385 | ! |
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386 | ff(:,:) = ( zf0 + zbeta * gphif(:,:) * 1.e+3 ) ! f = f0 +beta* y ( y=0 at south) |
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387 | ! |
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388 | IF(lwp) THEN |
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389 | WRITE(numout,*) |
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390 | WRITE(numout,*) ' Beta-plane: Beta parameter = constant = ', ff(nldi,nldj) |
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391 | WRITE(numout,*) ' Coriolis parameter varies from ', ff(nldi,nldj),' to ', ff(nldi,nlej) |
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392 | ENDIF |
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393 | IF( lk_mpp ) THEN |
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394 | zminff=ff(nldi,nldj) |
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395 | zmaxff=ff(nldi,nlej) |
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396 | CALL mpp_min( zminff ) ! min over the global domain |
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397 | CALL mpp_max( zmaxff ) ! max over the global domain |
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398 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies globally from ', zminff,' to ', zmaxff |
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399 | END IF |
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400 | ! |
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401 | END SELECT |
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402 | |
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403 | |
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404 | ! Control of domain for symetrical condition |
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405 | ! ------------------------------------------ |
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406 | ! The equator line must be the latitude coordinate axe |
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407 | |
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408 | IF( nperio == 2 ) THEN |
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409 | znorme = SQRT( SUM( gphiu(:,2) * gphiu(:,2) ) ) / REAL( jpi ) |
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410 | IF( znorme > 1.e-13 ) CALL ctl_stop( ' ===>>>> : symmetrical condition: rerun with good equator line' ) |
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411 | ENDIF |
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412 | ! |
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413 | IF( nn_timing == 1 ) CALL timing_stop('dom_hgr') |
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414 | ! |
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415 | END SUBROUTINE dom_hgr |
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416 | |
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417 | |
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418 | SUBROUTINE hgr_read( ke1e2u_v, kff ) |
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419 | !!--------------------------------------------------------------------- |
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420 | !! *** ROUTINE hgr_read *** |
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421 | !! |
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422 | !! ** Purpose : Read a mesh_mask file in NetCDF format using IOM |
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423 | !! |
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424 | !!---------------------------------------------------------------------- |
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425 | USE iom |
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426 | !! |
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427 | INTEGER, INTENT( inout ) :: ke1e2u_v ! fag: e1e2u & e1e2v read in mesh_mask file (=1) or not (=0) |
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428 | INTEGER, INTENT( inout ) :: kff ! fag: kff read in mesh_mask file (=1) or not (=0) |
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429 | ! |
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430 | INTEGER :: inum ! temporary logical unit |
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431 | !!---------------------------------------------------------------------- |
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432 | ! |
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433 | IF(lwp) THEN |
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434 | WRITE(numout,*) |
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435 | WRITE(numout,*) 'hgr_read : read the horizontal coordinates in mesh_mask' |
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436 | WRITE(numout,*) '~~~~~~~~ jpiglo = ', jpiglo, ' jpjglo = ', jpjglo, ' jpk = ', jpk |
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437 | ENDIF |
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438 | ! |
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439 | !SF CALL iom_open( 'coordinates', inum ) |
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440 | CALL iom_open( 'mesh_mask', inum ) |
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441 | ! |
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442 | CALL iom_get( inum, jpdom_data, 'glamt', glamt, lrowattr=ln_use_jattr ) |
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443 | CALL iom_get( inum, jpdom_data, 'glamu', glamu, lrowattr=ln_use_jattr ) |
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444 | CALL iom_get( inum, jpdom_data, 'glamv', glamv, lrowattr=ln_use_jattr ) |
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445 | CALL iom_get( inum, jpdom_data, 'glamf', glamf, lrowattr=ln_use_jattr ) |
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446 | ! |
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447 | CALL iom_get( inum, jpdom_data, 'gphit', gphit, lrowattr=ln_use_jattr ) |
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448 | CALL iom_get( inum, jpdom_data, 'gphiu', gphiu, lrowattr=ln_use_jattr ) |
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449 | CALL iom_get( inum, jpdom_data, 'gphiv', gphiv, lrowattr=ln_use_jattr ) |
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450 | CALL iom_get( inum, jpdom_data, 'gphif', gphif, lrowattr=ln_use_jattr ) |
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451 | ! |
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452 | CALL iom_get( inum, jpdom_data, 'e1t' , e1t , lrowattr=ln_use_jattr ) |
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453 | CALL iom_get( inum, jpdom_data, 'e1u' , e1u , lrowattr=ln_use_jattr ) |
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454 | CALL iom_get( inum, jpdom_data, 'e1v' , e1v , lrowattr=ln_use_jattr ) |
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455 | CALL iom_get( inum, jpdom_data, 'e1f' , e1f , lrowattr=ln_use_jattr ) |
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456 | ! |
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457 | CALL iom_get( inum, jpdom_data, 'e2t' , e2t , lrowattr=ln_use_jattr ) |
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458 | CALL iom_get( inum, jpdom_data, 'e2u' , e2u , lrowattr=ln_use_jattr ) |
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459 | CALL iom_get( inum, jpdom_data, 'e2v' , e2v , lrowattr=ln_use_jattr ) |
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460 | CALL iom_get( inum, jpdom_data, 'e2f' , e2f , lrowattr=ln_use_jattr ) |
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461 | !SF add read coriolis in mesh_mask file |
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462 | CALL iom_get( inum, jpdom_data, 'ff' , ff , lrowattr=ln_use_jattr ) |
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463 | ! |
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464 | IF( iom_varid( inum, 'e1e2u', ldstop = .FALSE. ) > 0 ) THEN |
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465 | IF(lwp) WRITE(numout,*) 'hgr_read : e1e2u & e1e2v read in mesh_mask file' |
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466 | CALL iom_get( inum, jpdom_data, 'e1e2u' , e1e2u , lrowattr=ln_use_jattr ) |
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467 | CALL iom_get( inum, jpdom_data, 'e1e2v' , e1e2v , lrowattr=ln_use_jattr ) |
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468 | ke1e2u_v = 1 |
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469 | ELSE |
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470 | ke1e2u_v = 0 |
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471 | ENDIF |
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472 | ! |
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473 | IF( iom_varid( inum, 'kff', ldstop = .FALSE. ) > 0 ) THEN |
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474 | IF(lwp) WRITE(numout,*) 'hgr_read : ff read in mesh_mask file' |
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475 | CALL iom_get( inum, jpdom_data, 'ff' , ff , lrowattr=ln_use_jattr ) |
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476 | kff = 1 |
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477 | ELSE |
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478 | kff = 0 |
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479 | ENDIF |
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480 | ! |
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481 | CALL iom_close( inum ) |
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482 | |
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483 | END SUBROUTINE hgr_read |
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484 | |
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485 | !!====================================================================== |
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486 | END MODULE domhgr |
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