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 | !! 4.0 ! 2011-02 (G. Madec) add cell surface (e1e2t) |
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17 | !!---------------------------------------------------------------------- |
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18 | |
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19 | !!---------------------------------------------------------------------- |
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20 | !! dom_hgr : initialize the horizontal mesh |
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21 | !! hgr_read : read "coordinate" NetCDF file |
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22 | !!---------------------------------------------------------------------- |
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23 | USE dom_oce ! ocean space and time domain |
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24 | USE phycst ! physical constants |
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25 | USE in_out_manager ! I/O manager |
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26 | USE lib_mpp ! MPP library |
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27 | USE timing ! Timing |
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28 | |
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29 | IMPLICIT NONE |
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30 | PRIVATE |
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31 | |
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32 | REAL(wp) :: glam0, gphi0 ! variables corresponding to parameters ppglam0 ppgphi0 set in par_oce |
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33 | |
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34 | PUBLIC dom_hgr ! called by domain.F90 |
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35 | |
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36 | !!---------------------------------------------------------------------- |
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37 | !! NEMO/OPA 4.0 , NEMO Consortium (2011) |
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38 | !! $Id$ |
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39 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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40 | !!---------------------------------------------------------------------- |
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41 | CONTAINS |
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42 | |
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43 | SUBROUTINE dom_hgr |
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44 | !!---------------------------------------------------------------------- |
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45 | !! *** ROUTINE dom_hgr *** |
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46 | !! |
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47 | !! ** Purpose : Compute the geographical position (in degre) of the |
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48 | !! model grid-points, the horizontal scale factors (in meters) and |
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49 | !! the Coriolis factor (in s-1). |
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50 | !! |
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51 | !! ** Method : The geographical position of the model grid-points is |
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52 | !! defined from analytical functions, fslam and fsphi, the deriva- |
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53 | !! tives of which gives the horizontal scale factors e1,e2. |
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54 | !! Defining two function fslam and fsphi and their derivatives in |
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55 | !! the two horizontal directions (fse1 and fse2), the model grid- |
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56 | !! point position and scale factors are given by: |
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57 | !! t-point: |
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58 | !! glamt(i,j) = fslam(i ,j ) e1t(i,j) = fse1(i ,j ) |
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59 | !! gphit(i,j) = fsphi(i ,j ) e2t(i,j) = fse2(i ,j ) |
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60 | !! u-point: |
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61 | !! glamu(i,j) = fslam(i+1/2,j ) e1u(i,j) = fse1(i+1/2,j ) |
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62 | !! gphiu(i,j) = fsphi(i+1/2,j ) e2u(i,j) = fse2(i+1/2,j ) |
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63 | !! v-point: |
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64 | !! glamv(i,j) = fslam(i ,j+1/2) e1v(i,j) = fse1(i ,j+1/2) |
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65 | !! gphiv(i,j) = fsphi(i ,j+1/2) e2v(i,j) = fse2(i ,j+1/2) |
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66 | !! f-point: |
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67 | !! glamf(i,j) = fslam(i+1/2,j+1/2) e1f(i,j) = fse1(i+1/2,j+1/2) |
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68 | !! gphif(i,j) = fsphi(i+1/2,j+1/2) e2f(i,j) = fse2(i+1/2,j+1/2) |
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69 | !! Where fse1 and fse2 are defined by: |
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70 | !! fse1(i,j) = ra * rad * SQRT( (cos(phi) di(fslam))**2 |
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71 | !! + di(fsphi) **2 )(i,j) |
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72 | !! fse2(i,j) = ra * rad * SQRT( (cos(phi) dj(fslam))**2 |
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73 | !! + dj(fsphi) **2 )(i,j) |
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74 | !! |
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75 | !! The coriolis factor is given at z-point by: |
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76 | !! ff = 2.*omega*sin(gphif) (in s-1) |
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77 | !! |
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78 | !! This routine is given as an example, it must be modified |
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79 | !! following the user s desiderata. nevertheless, the output as |
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80 | !! well as the way to compute the model grid-point position and |
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81 | !! horizontal scale factors must be respected in order to insure |
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82 | !! second order accuracy schemes. |
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83 | !! |
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84 | !! N.B. If the domain is periodic, verify that scale factors are also |
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85 | !! periodic, and the coriolis term again. |
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86 | !! |
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87 | !! ** Action : - define glamt, glamu, glamv, glamf: longitude of t-, |
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88 | !! u-, v- and f-points (in degre) |
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89 | !! - define gphit, gphiu, gphiv, gphit: latitude of t-, |
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90 | !! u-, v- and f-points (in degre) |
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91 | !! define e1t, e2t, e1u, e2u, e1v, e2v, e1f, e2f: horizontal |
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92 | !! scale factors (in meters) at t-, u-, v-, and f-points. |
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93 | !! define ff: coriolis factor at f-point |
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94 | !! |
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95 | !! References : Marti, Madec and Delecluse, 1992, JGR |
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96 | !! Madec, Imbard, 1996, Clim. Dyn. |
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97 | !!---------------------------------------------------------------------- |
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98 | INTEGER :: ji, jj ! dummy loop indices |
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99 | INTEGER :: ii0, ii1, ij0, ij1 ! temporary integers |
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100 | INTEGER :: ijeq ! index of equator T point (used in case 4) |
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101 | REAL(wp) :: zti, zui, zvi, zfi ! local scalars |
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102 | REAL(wp) :: ztj, zuj, zvj, zfj ! - - |
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103 | REAL(wp) :: zphi0, zbeta, znorme ! |
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104 | REAL(wp) :: zarg, zf0, zminff, zmaxff |
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105 | REAL(wp) :: zlam1, zcos_alpha, zim1 , zjm1 , ze1, ze1deg |
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106 | REAL(wp) :: zphi1, zsin_alpha, zim05, zjm05 |
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107 | !!---------------------------------------------------------------------- |
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108 | ! |
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109 | IF( nn_timing == 1 ) CALL timing_start('dom_hgr') |
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110 | ! |
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111 | IF(lwp) THEN |
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112 | WRITE(numout,*) |
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113 | WRITE(numout,*) 'dom_hgr : define the horizontal mesh from ithe following par_oce parameters ' |
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114 | WRITE(numout,*) '~~~~~~~ type of horizontal mesh jphgr_msh = ', jphgr_msh |
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115 | WRITE(numout,*) ' position of the first row and ppglam0 = ', ppglam0 |
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116 | WRITE(numout,*) ' column grid-point (degrees) ppgphi0 = ', ppgphi0 |
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117 | WRITE(numout,*) ' zonal grid-spacing (degrees) ppe1_deg = ', ppe1_deg |
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118 | WRITE(numout,*) ' meridional grid-spacing (degrees) ppe2_deg = ', ppe2_deg |
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119 | WRITE(numout,*) ' zonal grid-spacing (meters) ppe1_m = ', ppe1_m |
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120 | WRITE(numout,*) ' meridional grid-spacing (meters) ppe2_m = ', ppe2_m |
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121 | ENDIF |
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122 | |
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123 | |
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124 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
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125 | |
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126 | CASE ( 0 ) ! curvilinear coordinate on the sphere read in coordinate.nc file |
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127 | |
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128 | IF(lwp) WRITE(numout,*) |
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129 | IF(lwp) WRITE(numout,*) ' curvilinear coordinate on the sphere read in "coordinate" file' |
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130 | |
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131 | CALL hgr_read ! Defaultl option : NetCDF file |
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132 | |
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133 | ! ! ===================== |
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134 | IF( cp_cfg == "orca" .AND. jp_cfg == 2 ) THEN ! ORCA R2 configuration |
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135 | ! ! ===================== |
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136 | IF( nn_cla == 0 ) THEN |
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137 | ! |
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138 | ii0 = 139 ; ii1 = 140 ! Gibraltar Strait (e2u = 20 km) |
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139 | ij0 = 102 ; ij1 = 102 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 20.e3 |
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140 | IF(lwp) WRITE(numout,*) |
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141 | IF(lwp) WRITE(numout,*) ' orca_r2: Gibraltar : e2u reduced to 20 km' |
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142 | ! |
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143 | ii0 = 160 ; ii1 = 160 ! Bab el Mandeb (e2u = 18 km) |
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144 | ij0 = 88 ; ij1 = 88 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 18.e3 |
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145 | e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 30.e3 |
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146 | IF(lwp) WRITE(numout,*) |
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147 | IF(lwp) WRITE(numout,*) ' orca_r2: Bab el Mandeb: e2u reduced to 30 km' |
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148 | IF(lwp) WRITE(numout,*) ' e1v reduced to 18 km' |
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149 | ENDIF |
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150 | |
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151 | ii0 = 145 ; ii1 = 146 ! Danish Straits (e2u = 10 km) |
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152 | ij0 = 116 ; ij1 = 116 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e3 |
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153 | IF(lwp) WRITE(numout,*) |
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154 | IF(lwp) WRITE(numout,*) ' orca_r2: Danish Straits : e2u reduced to 10 km' |
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155 | ! |
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156 | ENDIF |
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157 | |
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158 | ! ! ===================== |
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159 | IF( cp_cfg == "orca" .AND. jp_cfg == 1 ) THEN ! ORCA R1 configuration |
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160 | ! ! ===================== |
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161 | |
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162 | ii0 = 281 ; ii1 = 282 ! Gibraltar Strait (e2u = 20 km) |
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163 | ij0 = 200 ; ij1 = 200 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 20.e3 |
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164 | IF(lwp) WRITE(numout,*) |
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165 | IF(lwp) WRITE(numout,*) ' orca_r1: Gibraltar : e2u reduced to 20 km' |
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166 | |
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167 | ii0 = 314 ; ii1 = 315 ! Bhosporus Strait (e2u = 10 km) |
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168 | ij0 = 208 ; ij1 = 208 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e3 |
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169 | IF(lwp) WRITE(numout,*) |
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170 | IF(lwp) WRITE(numout,*) ' orca_r1: Bhosporus : e2u reduced to 10 km' |
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171 | |
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172 | ii0 = 44 ; ii1 = 44 ! Lombok Strait (e1v = 13 km) |
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173 | ij0 = 124 ; ij1 = 125 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 13.e3 |
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174 | IF(lwp) WRITE(numout,*) |
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175 | IF(lwp) WRITE(numout,*) ' orca_r1: Lombok : e1v reduced to 10 km' |
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176 | |
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177 | ii0 = 48 ; ii1 = 48 ! Sumba Strait (e1v = 8 km) [closed from bathy_11 on] |
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178 | ij0 = 124 ; ij1 = 125 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 8.e3 |
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179 | IF(lwp) WRITE(numout,*) |
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180 | IF(lwp) WRITE(numout,*) ' orca_r1: Sumba : e1v reduced to 8 km' |
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181 | |
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182 | ii0 = 53 ; ii1 = 53 ! Ombai Strait (e1v = 13 km) |
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183 | ij0 = 124 ; ij1 = 125 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 13.e3 |
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184 | IF(lwp) WRITE(numout,*) |
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185 | IF(lwp) WRITE(numout,*) ' orca_r1: Ombai : e1v reduced to 13 km' |
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186 | |
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187 | ii0 = 56 ; ii1 = 56 ! Timor Passage (e1v = 20 km) |
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188 | ij0 = 124 ; ij1 = 125 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 20.e3 |
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189 | IF(lwp) WRITE(numout,*) |
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190 | IF(lwp) WRITE(numout,*) ' orca_r1: Timor Passage : e1v reduced to 20 km' |
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191 | |
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192 | ii0 = 55 ; ii1 = 55 ! West Halmahera Strait (e1v = 30 km) |
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193 | ij0 = 141 ; ij1 = 142 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 30.e3 |
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194 | IF(lwp) WRITE(numout,*) |
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195 | IF(lwp) WRITE(numout,*) ' orca_r1: W Halmahera : e1v reduced to 30 km' |
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196 | |
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197 | ii0 = 58 ; ii1 = 58 ! East Halmahera Strait (e1v = 50 km) |
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198 | ij0 = 141 ; ij1 = 142 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 50.e3 |
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199 | IF(lwp) WRITE(numout,*) |
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200 | IF(lwp) WRITE(numout,*) ' orca_r1: E Halmahera : e1v reduced to 50 km' |
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201 | |
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202 | ! |
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203 | |
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204 | ! |
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205 | ! |
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206 | ! |
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207 | ! |
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208 | ENDIF |
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209 | |
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210 | ! ! ====================== |
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211 | IF( cp_cfg == "orca" .AND. jp_cfg == 05 ) THEN ! ORCA R05 configuration |
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212 | ! ! ====================== |
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213 | ii0 = 563 ; ii1 = 564 ! Gibraltar Strait (e2u = 20 km) |
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214 | ij0 = 327 ; ij1 = 327 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 20.e3 |
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215 | IF(lwp) WRITE(numout,*) |
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216 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e2u at the Gibraltar Strait' |
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217 | ! |
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218 | ii0 = 627 ; ii1 = 628 ! Bosphore Strait (e2u = 10 km) |
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219 | ij0 = 343 ; ij1 = 343 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e3 |
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220 | IF(lwp) WRITE(numout,*) |
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221 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e2u at the Bosphore Strait' |
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222 | ! |
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223 | ii0 = 93 ; ii1 = 94 ! Sumba Strait (e2u = 40 km) |
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224 | ij0 = 232 ; ij1 = 232 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 40.e3 |
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225 | IF(lwp) WRITE(numout,*) |
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226 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e2u at the Sumba Strait' |
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227 | ! |
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228 | ii0 = 103 ; ii1 = 103 ! Ombai Strait (e2u = 15 km) |
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229 | ij0 = 232 ; ij1 = 232 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 15.e3 |
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230 | IF(lwp) WRITE(numout,*) |
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231 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e2u at the Ombai Strait' |
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232 | ! |
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233 | ii0 = 15 ; ii1 = 15 ! Palk Strait (e2u = 10 km) |
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234 | ij0 = 270 ; ij1 = 270 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e3 |
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235 | IF(lwp) WRITE(numout,*) |
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236 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e2u at the Palk Strait' |
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237 | ! |
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238 | ii0 = 87 ; ii1 = 87 ! Lombok Strait (e1v = 10 km) |
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239 | ij0 = 232 ; ij1 = 233 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e3 |
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240 | IF(lwp) WRITE(numout,*) |
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241 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e1v at the Lombok Strait' |
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242 | ! |
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243 | ! |
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244 | ii0 = 662 ; ii1 = 662 ! Bab el Mandeb (e1v = 25 km) |
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245 | ij0 = 276 ; ij1 = 276 ; e1v( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 25.e3 |
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246 | IF(lwp) WRITE(numout,*) |
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247 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e1v at the Bab el Mandeb' |
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248 | ! |
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249 | ENDIF |
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250 | |
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251 | |
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252 | ! N.B. : General case, lat and long function of both i and j indices: |
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253 | ! e1t(ji,jj) = ra * rad * SQRT( ( cos( rad*gphit(ji,jj) ) * fsdila( zti, ztj ) )**2 & |
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254 | ! + ( fsdiph( zti, ztj ) )**2 ) |
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255 | ! e1u(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiu(ji,jj) ) * fsdila( zui, zuj ) )**2 & |
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256 | ! + ( fsdiph( zui, zuj ) )**2 ) |
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257 | ! e1v(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiv(ji,jj) ) * fsdila( zvi, zvj ) )**2 & |
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258 | ! + ( fsdiph( zvi, zvj ) )**2 ) |
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259 | ! e1f(ji,jj) = ra * rad * SQRT( ( cos( rad*gphif(ji,jj) ) * fsdila( zfi, zfj ) )**2 & |
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260 | ! + ( fsdiph( zfi, zfj ) )**2 ) |
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261 | ! |
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262 | ! e2t(ji,jj) = ra * rad * SQRT( ( cos( rad*gphit(ji,jj) ) * fsdjla( zti, ztj ) )**2 & |
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263 | ! + ( fsdjph( zti, ztj ) )**2 ) |
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264 | ! e2u(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiu(ji,jj) ) * fsdjla( zui, zuj ) )**2 & |
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265 | ! + ( fsdjph( zui, zuj ) )**2 ) |
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266 | ! e2v(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiv(ji,jj) ) * fsdjla( zvi, zvj ) )**2 & |
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267 | ! + ( fsdjph( zvi, zvj ) )**2 ) |
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268 | ! e2f(ji,jj) = ra * rad * SQRT( ( cos( rad*gphif(ji,jj) ) * fsdjla( zfi, zfj ) )**2 & |
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269 | ! + ( fsdjph( zfi, zfj ) )**2 ) |
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270 | |
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271 | |
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272 | CASE ( 1 ) ! geographical mesh on the sphere with regular grid-spacing |
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273 | |
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274 | IF(lwp) WRITE(numout,*) |
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275 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere with regular grid-spacing' |
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276 | IF(lwp) WRITE(numout,*) ' given by ppe1_deg and ppe2_deg' |
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277 | |
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278 | DO jj = 1, jpj |
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279 | DO ji = 1, jpi |
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280 | zti = FLOAT( ji - 1 + nimpp - 1 ) ; ztj = FLOAT( jj - 1 + njmpp - 1 ) |
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281 | zui = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = FLOAT( jj - 1 + njmpp - 1 ) |
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282 | zvi = FLOAT( ji - 1 + nimpp - 1 ) ; zvj = FLOAT( jj - 1 + njmpp - 1 ) + 0.5 |
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283 | zfi = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = FLOAT( jj - 1 + njmpp - 1 ) + 0.5 |
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284 | ! Longitude |
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285 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
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286 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
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287 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
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288 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
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289 | ! Latitude |
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290 | gphit(ji,jj) = ppgphi0 + ppe2_deg * ztj |
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291 | gphiu(ji,jj) = ppgphi0 + ppe2_deg * zuj |
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292 | gphiv(ji,jj) = ppgphi0 + ppe2_deg * zvj |
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293 | gphif(ji,jj) = ppgphi0 + ppe2_deg * zfj |
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294 | ! e1 |
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295 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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296 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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297 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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298 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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299 | ! e2 |
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300 | e2t(ji,jj) = ra * rad * ppe2_deg |
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301 | e2u(ji,jj) = ra * rad * ppe2_deg |
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302 | e2v(ji,jj) = ra * rad * ppe2_deg |
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303 | e2f(ji,jj) = ra * rad * ppe2_deg |
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304 | END DO |
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305 | END DO |
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306 | |
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307 | |
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308 | CASE ( 2:3 ) ! f- or beta-plane with regular grid-spacing |
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309 | |
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310 | IF(lwp) WRITE(numout,*) |
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311 | IF(lwp) WRITE(numout,*) ' f- or beta-plane with regular grid-spacing' |
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312 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
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313 | |
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314 | ! Position coordinates (in kilometers) |
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315 | ! ========== |
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316 | glam0 = 0.e0 |
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317 | gphi0 = - ppe2_m * 1.e-3 |
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318 | |
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319 | #if defined key_agrif && defined key_eel_r6 |
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320 | IF( .NOT. Agrif_Root() ) THEN |
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321 | glam0 = Agrif_Parent(glam0) + (Agrif_ix())*Agrif_Parent(ppe1_m) * 1.e-3 |
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322 | gphi0 = Agrif_Parent(gphi0) + (Agrif_iy())*Agrif_Parent(ppe2_m) * 1.e-3 |
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323 | ppe1_m = Agrif_Parent(ppe1_m)/Agrif_Rhox() |
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324 | ppe2_m = Agrif_Parent(ppe2_m)/Agrif_Rhoy() |
---|
325 | ENDIF |
---|
326 | #endif |
---|
327 | DO jj = 1, jpj |
---|
328 | DO ji = 1, jpi |
---|
329 | glamt(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( FLOAT( ji - 1 + nimpp - 1 ) ) |
---|
330 | glamu(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ) |
---|
331 | glamv(ji,jj) = glamt(ji,jj) |
---|
332 | glamf(ji,jj) = glamu(ji,jj) |
---|
333 | |
---|
334 | gphit(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( FLOAT( jj - 1 + njmpp - 1 ) ) |
---|
335 | gphiu(ji,jj) = gphit(ji,jj) |
---|
336 | gphiv(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( FLOAT( jj - 1 + njmpp - 1 ) + 0.5 ) |
---|
337 | gphif(ji,jj) = gphiv(ji,jj) |
---|
338 | END DO |
---|
339 | END DO |
---|
340 | |
---|
341 | ! Horizontal scale factors (in meters) |
---|
342 | ! ====== |
---|
343 | e1t(:,:) = ppe1_m ; e2t(:,:) = ppe2_m |
---|
344 | e1u(:,:) = ppe1_m ; e2u(:,:) = ppe2_m |
---|
345 | e1v(:,:) = ppe1_m ; e2v(:,:) = ppe2_m |
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346 | e1f(:,:) = ppe1_m ; e2f(:,:) = ppe2_m |
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347 | |
---|
348 | CASE ( 4 ) ! geographical mesh on the sphere, isotropic MERCATOR type |
---|
349 | |
---|
350 | IF(lwp) WRITE(numout,*) |
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351 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere, MERCATOR type' |
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352 | IF(lwp) WRITE(numout,*) ' longitudinal/latitudinal spacing given by ppe1_deg' |
---|
353 | IF ( ppgphi0 == -90 ) CALL ctl_stop( ' Mercator grid cannot start at south pole !!!! ' ) |
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354 | |
---|
355 | ! Find index corresponding to the equator, given the grid spacing e1_deg |
---|
356 | ! and the (approximate) southern latitude ppgphi0. |
---|
357 | ! This way we ensure that the equator is at a "T / U" point, when in the domain. |
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358 | ! The formula should work even if the equator is outside the domain. |
---|
359 | zarg = rpi / 4. - rpi / 180. * ppgphi0 / 2. |
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360 | ijeq = ABS( 180./rpi * LOG( COS( zarg ) / SIN( zarg ) ) / ppe1_deg ) |
---|
361 | IF( ppgphi0 > 0 ) ijeq = -ijeq |
---|
362 | |
---|
363 | IF(lwp) WRITE(numout,*) ' Index of the equator on the MERCATOR grid:', ijeq |
---|
364 | |
---|
365 | DO jj = 1, jpj |
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366 | DO ji = 1, jpi |
---|
367 | zti = FLOAT( ji - 1 + nimpp - 1 ) ; ztj = FLOAT( jj - ijeq + njmpp - 1 ) |
---|
368 | zui = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = FLOAT( jj - ijeq + njmpp - 1 ) |
---|
369 | zvi = FLOAT( ji - 1 + nimpp - 1 ) ; zvj = FLOAT( jj - ijeq + njmpp - 1 ) + 0.5 |
---|
370 | zfi = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = FLOAT( jj - ijeq + njmpp - 1 ) + 0.5 |
---|
371 | ! Longitude |
---|
372 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
---|
373 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
---|
374 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
---|
375 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
---|
376 | ! Latitude |
---|
377 | gphit(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* ztj ) ) |
---|
378 | gphiu(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zuj ) ) |
---|
379 | gphiv(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zvj ) ) |
---|
380 | gphif(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zfj ) ) |
---|
381 | ! e1 |
---|
382 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
---|
383 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
---|
384 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
---|
385 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
---|
386 | ! e2 |
---|
387 | e2t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
---|
388 | e2u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
---|
389 | e2v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
---|
390 | e2f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
---|
391 | END DO |
---|
392 | END DO |
---|
393 | |
---|
394 | CASE ( 5 ) ! beta-plane with regular grid-spacing and rotated domain (GYRE configuration) |
---|
395 | |
---|
396 | IF(lwp) WRITE(numout,*) |
---|
397 | IF(lwp) WRITE(numout,*) ' beta-plane with regular grid-spacing and rotated domain (GYRE configuration)' |
---|
398 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
---|
399 | |
---|
400 | ! Position coordinates (in kilometers) |
---|
401 | ! ========== |
---|
402 | |
---|
403 | ! angle 45deg and ze1=106.e+3 / jp_cfg forced -> zlam1 = -85deg, zphi1 = 29degN |
---|
404 | zlam1 = -85 |
---|
405 | zphi1 = 29 |
---|
406 | ! resolution in meters |
---|
407 | ze1 = 106000. / FLOAT(jp_cfg) |
---|
408 | ! benchmark: forced the resolution to be about 100 km |
---|
409 | IF( nbench /= 0 ) ze1 = 106000.e0 |
---|
410 | zsin_alpha = - SQRT( 2. ) / 2. |
---|
411 | zcos_alpha = SQRT( 2. ) / 2. |
---|
412 | ze1deg = ze1 / (ra * rad) |
---|
413 | IF( nbench /= 0 ) ze1deg = ze1deg / FLOAT(jp_cfg) ! benchmark: keep the lat/+lon |
---|
414 | ! ! at the right jp_cfg resolution |
---|
415 | glam0 = zlam1 + zcos_alpha * ze1deg * FLOAT( jpjglo-2 ) |
---|
416 | gphi0 = zphi1 + zsin_alpha * ze1deg * FLOAT( jpjglo-2 ) |
---|
417 | |
---|
418 | IF( nprint==1 .AND. lwp ) THEN |
---|
419 | WRITE(numout,*) ' ze1', ze1, 'cosalpha', zcos_alpha, 'sinalpha', zsin_alpha |
---|
420 | WRITE(numout,*) ' ze1deg', ze1deg, 'glam0', glam0, 'gphi0', gphi0 |
---|
421 | ENDIF |
---|
422 | |
---|
423 | DO jj = 1, jpj |
---|
424 | DO ji = 1, jpi |
---|
425 | zim1 = FLOAT( ji + nimpp - 1 ) - 1. ; zim05 = FLOAT( ji + nimpp - 1 ) - 1.5 |
---|
426 | zjm1 = FLOAT( jj + njmpp - 1 ) - 1. ; zjm05 = FLOAT( jj + njmpp - 1 ) - 1.5 |
---|
427 | |
---|
428 | glamf(ji,jj) = glam0 + zim1 * ze1deg * zcos_alpha + zjm1 * ze1deg * zsin_alpha |
---|
429 | gphif(ji,jj) = gphi0 - zim1 * ze1deg * zsin_alpha + zjm1 * ze1deg * zcos_alpha |
---|
430 | |
---|
431 | glamt(ji,jj) = glam0 + zim05 * ze1deg * zcos_alpha + zjm05 * ze1deg * zsin_alpha |
---|
432 | gphit(ji,jj) = gphi0 - zim05 * ze1deg * zsin_alpha + zjm05 * ze1deg * zcos_alpha |
---|
433 | |
---|
434 | glamu(ji,jj) = glam0 + zim1 * ze1deg * zcos_alpha + zjm05 * ze1deg * zsin_alpha |
---|
435 | gphiu(ji,jj) = gphi0 - zim1 * ze1deg * zsin_alpha + zjm05 * ze1deg * zcos_alpha |
---|
436 | |
---|
437 | glamv(ji,jj) = glam0 + zim05 * ze1deg * zcos_alpha + zjm1 * ze1deg * zsin_alpha |
---|
438 | gphiv(ji,jj) = gphi0 - zim05 * ze1deg * zsin_alpha + zjm1 * ze1deg * zcos_alpha |
---|
439 | END DO |
---|
440 | END DO |
---|
441 | |
---|
442 | ! Horizontal scale factors (in meters) |
---|
443 | ! ====== |
---|
444 | e1t(:,:) = ze1 ; e2t(:,:) = ze1 |
---|
445 | e1u(:,:) = ze1 ; e2u(:,:) = ze1 |
---|
446 | e1v(:,:) = ze1 ; e2v(:,:) = ze1 |
---|
447 | e1f(:,:) = ze1 ; e2f(:,:) = ze1 |
---|
448 | |
---|
449 | CASE DEFAULT |
---|
450 | WRITE(ctmp1,*) ' bad flag value for jphgr_msh = ', jphgr_msh |
---|
451 | CALL ctl_stop( ctmp1 ) |
---|
452 | |
---|
453 | END SELECT |
---|
454 | |
---|
455 | ! T-cell surface |
---|
456 | ! -------------- |
---|
457 | e1e2t(:,:) = e1t(:,:) * e2t(:,:) |
---|
458 | |
---|
459 | |
---|
460 | ! Control printing : Grid informations (if not restart) |
---|
461 | ! ---------------- |
---|
462 | |
---|
463 | IF( lwp .AND. .NOT.ln_rstart ) THEN |
---|
464 | WRITE(numout,*) |
---|
465 | WRITE(numout,*) ' longitude and e1 scale factors' |
---|
466 | WRITE(numout,*) ' ------------------------------' |
---|
467 | WRITE(numout,9300) ( ji, glamt(ji,1), glamu(ji,1), & |
---|
468 | glamv(ji,1), glamf(ji,1), & |
---|
469 | e1t(ji,1), e1u(ji,1), & |
---|
470 | e1v(ji,1), e1f(ji,1), ji = 1, jpi,10) |
---|
471 | 9300 FORMAT( 1x, i4, f8.2,1x, f8.2,1x, f8.2,1x, f8.2, 1x, & |
---|
472 | f19.10, 1x, f19.10, 1x, f19.10, 1x, f19.10 ) |
---|
473 | |
---|
474 | WRITE(numout,*) |
---|
475 | WRITE(numout,*) ' latitude and e2 scale factors' |
---|
476 | WRITE(numout,*) ' -----------------------------' |
---|
477 | WRITE(numout,9300) ( jj, gphit(1,jj), gphiu(1,jj), & |
---|
478 | & gphiv(1,jj), gphif(1,jj), & |
---|
479 | & e2t (1,jj), e2u (1,jj), & |
---|
480 | & e2v (1,jj), e2f (1,jj), jj = 1, jpj, 10 ) |
---|
481 | ENDIF |
---|
482 | |
---|
483 | |
---|
484 | IF( nprint == 1 .AND. lwp ) THEN |
---|
485 | WRITE(numout,*) ' e1u e2u ' |
---|
486 | CALL prihre( e1u,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
487 | CALL prihre( e2u,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
488 | WRITE(numout,*) ' e1v e2v ' |
---|
489 | CALL prihre( e1v,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
490 | CALL prihre( e2v,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
491 | WRITE(numout,*) ' e1f e2f ' |
---|
492 | CALL prihre( e1f,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
493 | CALL prihre( e2f,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
494 | ENDIF |
---|
495 | |
---|
496 | |
---|
497 | ! ================= ! |
---|
498 | ! Coriolis factor ! |
---|
499 | ! ================= ! |
---|
500 | |
---|
501 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
---|
502 | |
---|
503 | CASE ( 0, 1, 4 ) ! mesh on the sphere |
---|
504 | |
---|
505 | ff(:,:) = 2. * omega * SIN( rad * gphif(:,:) ) |
---|
506 | |
---|
507 | CASE ( 2 ) ! f-plane at ppgphi0 |
---|
508 | |
---|
509 | ff(:,:) = 2. * omega * SIN( rad * ppgphi0 ) |
---|
510 | |
---|
511 | IF(lwp) WRITE(numout,*) ' f-plane: Coriolis parameter = constant = ', ff(1,1) |
---|
512 | |
---|
513 | CASE ( 3 ) ! beta-plane |
---|
514 | |
---|
515 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
---|
516 | zphi0 = ppgphi0 - FLOAT( jpjglo/2) * ppe2_m / ( ra * rad ) ! latitude of the first row F-points |
---|
517 | |
---|
518 | #if defined key_agrif && defined key_eel_r6 |
---|
519 | IF( .NOT. Agrif_Root() ) THEN |
---|
520 | zphi0 = ppgphi0 - FLOAT( Agrif_Parent(jpjglo)/2)*Agrif_Parent(ppe2_m) / (ra * rad) |
---|
521 | ENDIF |
---|
522 | #endif |
---|
523 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
---|
524 | |
---|
525 | ff(:,:) = ( zf0 + zbeta * gphif(:,:) * 1.e+3 ) ! f = f0 +beta* y ( y=0 at south) |
---|
526 | |
---|
527 | IF(lwp) THEN |
---|
528 | WRITE(numout,*) |
---|
529 | WRITE(numout,*) ' Beta-plane: Beta parameter = constant = ', ff(nldi,nldj) |
---|
530 | WRITE(numout,*) ' Coriolis parameter varies from ', ff(nldi,nldj),' to ', ff(nldi,nlej) |
---|
531 | ENDIF |
---|
532 | IF( lk_mpp ) THEN |
---|
533 | zminff=ff(nldi,nldj) |
---|
534 | zmaxff=ff(nldi,nlej) |
---|
535 | CALL mpp_min( zminff ) ! min over the global domain |
---|
536 | CALL mpp_max( zmaxff ) ! max over the global domain |
---|
537 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies globally from ', zminff,' to ', zmaxff |
---|
538 | END IF |
---|
539 | |
---|
540 | CASE ( 5 ) ! beta-plane and rotated domain (gyre configuration) |
---|
541 | |
---|
542 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
---|
543 | zphi0 = 15.e0 ! latitude of the first row F-points |
---|
544 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
---|
545 | |
---|
546 | ff(:,:) = ( zf0 + zbeta * ABS( gphif(:,:) - zphi0 ) * rad * ra ) ! f = f0 +beta* y ( y=0 at south) |
---|
547 | |
---|
548 | IF(lwp) THEN |
---|
549 | WRITE(numout,*) |
---|
550 | WRITE(numout,*) ' Beta-plane and rotated domain : ' |
---|
551 | WRITE(numout,*) ' Coriolis parameter varies in this processor from ', ff(nldi,nldj),' to ', ff(nldi,nlej) |
---|
552 | ENDIF |
---|
553 | |
---|
554 | IF( lk_mpp ) THEN |
---|
555 | zminff=ff(nldi,nldj) |
---|
556 | zmaxff=ff(nldi,nlej) |
---|
557 | CALL mpp_min( zminff ) ! min over the global domain |
---|
558 | CALL mpp_max( zmaxff ) ! max over the global domain |
---|
559 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies globally from ', zminff,' to ', zmaxff |
---|
560 | END IF |
---|
561 | |
---|
562 | END SELECT |
---|
563 | |
---|
564 | |
---|
565 | ! Control of domain for symetrical condition |
---|
566 | ! ------------------------------------------ |
---|
567 | ! The equator line must be the latitude coordinate axe |
---|
568 | |
---|
569 | IF( nperio == 2 ) THEN |
---|
570 | znorme = SQRT( SUM( gphiu(:,2) * gphiu(:,2) ) ) / FLOAT( jpi ) |
---|
571 | IF( znorme > 1.e-13 ) CALL ctl_stop( ' ===>>>> : symmetrical condition: rerun with good equator line' ) |
---|
572 | ENDIF |
---|
573 | ! |
---|
574 | IF( nn_timing == 1 ) CALL timing_stop('dom_hgr') |
---|
575 | ! |
---|
576 | END SUBROUTINE dom_hgr |
---|
577 | |
---|
578 | |
---|
579 | SUBROUTINE hgr_read |
---|
580 | !!--------------------------------------------------------------------- |
---|
581 | !! *** ROUTINE hgr_read *** |
---|
582 | !! |
---|
583 | !! ** Purpose : Read a coordinate file in NetCDF format |
---|
584 | !! |
---|
585 | !! ** Method : The mesh file has been defined trough a analytical |
---|
586 | !! or semi-analytical method. It is read in a NetCDF file. |
---|
587 | !! |
---|
588 | !!---------------------------------------------------------------------- |
---|
589 | USE iom |
---|
590 | |
---|
591 | INTEGER :: inum ! temporary logical unit |
---|
592 | !!---------------------------------------------------------------------- |
---|
593 | |
---|
594 | IF(lwp) THEN |
---|
595 | WRITE(numout,*) |
---|
596 | WRITE(numout,*) 'hgr_read : read the horizontal coordinates' |
---|
597 | WRITE(numout,*) '~~~~~~~~ jpiglo = ', jpiglo, ' jpjglo = ', jpjglo, ' jpk = ', jpk |
---|
598 | ENDIF |
---|
599 | |
---|
600 | CALL iom_open( 'coordinates', inum ) |
---|
601 | |
---|
602 | CALL iom_get( inum, jpdom_data, 'glamt', glamt ) |
---|
603 | CALL iom_get( inum, jpdom_data, 'glamu', glamu ) |
---|
604 | CALL iom_get( inum, jpdom_data, 'glamv', glamv ) |
---|
605 | CALL iom_get( inum, jpdom_data, 'glamf', glamf ) |
---|
606 | |
---|
607 | CALL iom_get( inum, jpdom_data, 'gphit', gphit ) |
---|
608 | CALL iom_get( inum, jpdom_data, 'gphiu', gphiu ) |
---|
609 | CALL iom_get( inum, jpdom_data, 'gphiv', gphiv ) |
---|
610 | CALL iom_get( inum, jpdom_data, 'gphif', gphif ) |
---|
611 | |
---|
612 | CALL iom_get( inum, jpdom_data, 'e1t', e1t ) |
---|
613 | CALL iom_get( inum, jpdom_data, 'e1u', e1u ) |
---|
614 | CALL iom_get( inum, jpdom_data, 'e1v', e1v ) |
---|
615 | CALL iom_get( inum, jpdom_data, 'e1f', e1f ) |
---|
616 | |
---|
617 | CALL iom_get( inum, jpdom_data, 'e2t', e2t ) |
---|
618 | CALL iom_get( inum, jpdom_data, 'e2u', e2u ) |
---|
619 | CALL iom_get( inum, jpdom_data, 'e2v', e2v ) |
---|
620 | CALL iom_get( inum, jpdom_data, 'e2f', e2f ) |
---|
621 | |
---|
622 | CALL iom_close( inum ) |
---|
623 | |
---|
624 | END SUBROUTINE hgr_read |
---|
625 | |
---|
626 | !!====================================================================== |
---|
627 | END MODULE domhgr |
---|