[3] | 1 | MODULE domhgr |
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| 2 | !!============================================================================== |
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[93] | 3 | !! *** MODULE domhgr *** |
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[3] | 4 | !! Ocean initialization : domain initialization |
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| 5 | !!============================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! dom_hgr : initialize the horizontal mesh |
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[81] | 9 | !! hgr_read : read "coordinate" NetCDF file |
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[3] | 10 | !!---------------------------------------------------------------------- |
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| 11 | !! * Modules used |
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| 12 | USE dom_oce ! ocean space and time domain |
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| 13 | USE phycst ! physical constants |
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| 14 | USE in_out_manager ! I/O manager |
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| 15 | |
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| 16 | IMPLICIT NONE |
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| 17 | PRIVATE |
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| 18 | |
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| 19 | !! * Module variables |
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[93] | 20 | REAL(wp) :: glam0, gphi0 ! variables corresponding to parameters |
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| 21 | ! ! ppglam0 ppgphi0 set in par_oce |
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[3] | 22 | |
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| 23 | !! * Routine accessibility |
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| 24 | PUBLIC dom_hgr ! called by domain.F90 |
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| 25 | !!---------------------------------------------------------------------- |
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[247] | 26 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 27 | !! $Header$ |
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| 28 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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[3] | 29 | !!---------------------------------------------------------------------- |
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| 30 | |
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| 31 | CONTAINS |
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| 32 | |
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| 33 | SUBROUTINE dom_hgr |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | !! *** ROUTINE dom_hgr *** |
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| 36 | !! |
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| 37 | !! ** Purpose : Compute the geographical position (in degre) of the |
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| 38 | !! model grid-points, the horizontal scale factors (in meters) and |
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| 39 | !! the Coriolis factor (in s-1). |
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| 40 | !! |
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| 41 | !! ** Method : The geographical position of the model grid-points is |
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| 42 | !! defined from analytical functions, fslam and fsphi, the deriva- |
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| 43 | !! tives of which gives the horizontal scale factors e1,e2. |
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| 44 | !! Defining two function fslam and fsphi and their derivatives in |
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| 45 | !! the two horizontal directions (fse1 and fse2), the model grid- |
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| 46 | !! point position and scale factors are given by: |
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[81] | 47 | !! t-point: |
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| 48 | !! glamt(i,j) = fslam(i ,j ) e1t(i,j) = fse1(i ,j ) |
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| 49 | !! gphit(i,j) = fsphi(i ,j ) e2t(i,j) = fse2(i ,j ) |
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| 50 | !! u-point: |
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| 51 | !! glamu(i,j) = fslam(i+1/2,j ) e1u(i,j) = fse1(i+1/2,j ) |
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| 52 | !! gphiu(i,j) = fsphi(i+1/2,j ) e2u(i,j) = fse2(i+1/2,j ) |
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| 53 | !! v-point: |
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| 54 | !! glamv(i,j) = fslam(i ,j+1/2) e1v(i,j) = fse1(i ,j+1/2) |
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| 55 | !! gphiv(i,j) = fsphi(i ,j+1/2) e2v(i,j) = fse2(i ,j+1/2) |
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| 56 | !! f-point: |
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| 57 | !! glamf(i,j) = fslam(i+1/2,j+1/2) e1f(i,j) = fse1(i+1/2,j+1/2) |
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| 58 | !! gphif(i,j) = fsphi(i+1/2,j+1/2) e2f(i,j) = fse2(i+1/2,j+1/2) |
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[3] | 59 | !! Where fse1 and fse2 are defined by: |
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| 60 | !! fse1(i,j) = ra * rad * SQRT( (cos(phi) di(fslam))**2 |
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| 61 | !! + di(fsphi) **2 )(i,j) |
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| 62 | !! fse2(i,j) = ra * rad * SQRT( (cos(phi) dj(fslam))**2 |
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| 63 | !! + dj(fsphi) **2 )(i,j) |
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| 64 | !! |
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| 65 | !! The coriolis factor is given at z-point by: |
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| 66 | !! ff = 2.*omega*sin(gphif) (in s-1) |
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| 67 | !! |
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| 68 | !! This routine is given as an example, it must be modified |
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| 69 | !! following the user s desiderata. nevertheless, the output as |
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| 70 | !! well as the way to compute the model grid-point position and |
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| 71 | !! horizontal scale factors must be respected in order to insure |
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| 72 | !! second order accuracy schemes. |
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| 73 | !! |
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| 74 | !! N.B. If the domain is periodic, verify that scale factors are also |
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| 75 | !! periodic, and the coriolis term again. |
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| 76 | !! |
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| 77 | !! ** Action : - define glamt, glamu, glamv, glamf: longitude of t-, |
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| 78 | !! u-, v- and f-points (in degre) |
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| 79 | !! - define gphit, gphiu, gphiv, gphit: latitude of t-, |
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| 80 | !! u-, v- and f-points (in degre) |
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| 81 | !! define e1t, e2t, e1u, e2u, e1v, e2v, e1f, e2f: horizontal |
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| 82 | !! scale factors (in meters) at t-, u-, v-, and f-points. |
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| 83 | !! define ff: coriolis factor at f-point |
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| 84 | !! |
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| 85 | !! References : |
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| 86 | !! Marti, Madec and Delecluse, 1992, j. geophys. res., in press. |
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| 87 | !! |
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| 88 | !! History : |
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| 89 | !! ! 88-03 (G. Madec) |
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| 90 | !! ! 91-11 (G. Madec) |
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| 91 | !! ! 92-06 (M. Imbard) |
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| 92 | !! ! 96-01 (G. Madec) terrain following coordinates |
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| 93 | !! ! 97-02 (G. Madec) print mesh informations |
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| 94 | !! ! 01-09 (M. Levy) eel config: grid in km, beta-plane |
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| 95 | !! 8.5 ! 02-08 (G. Madec) F90: Free form and module, namelist |
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| 96 | !! 9.0 ! 04-01 (A.M. Treguier, J.M. Molines) Case 4 (Mercator mesh) |
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| 97 | !! use of parameters in par_CONFIG-Rxx.h90, not in namelist |
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[93] | 98 | !! ! 04-05 (A. Koch-Larrouy) Add Gyre configuration |
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[3] | 99 | !!---------------------------------------------------------------------- |
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| 100 | !! * local declarations |
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[81] | 101 | INTEGER :: ji, jj ! dummy loop indices |
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| 102 | INTEGER :: ii0, ii1, ij0, ij1 ! temporary integers |
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| 103 | INTEGER :: ijeq ! index of equator T point (used in case 4) |
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[3] | 104 | REAL(wp) :: & |
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[81] | 105 | zti, zui, zvi, zfi, & ! temporary scalars |
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| 106 | ztj, zuj, zvj, zfj, & ! |
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| 107 | zphi0, zbeta, znorme, & ! |
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[3] | 108 | zarg, zf0 |
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[93] | 109 | REAL(wp) :: & |
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| 110 | zlam1, zcos_alpha, zim1 , zjm1 , ze1, ze1deg, & |
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| 111 | zphi1, zsin_alpha, zim05, zjm05 |
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[389] | 112 | |
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| 113 | real,dimension(:,:),pointer :: ffparent |
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[3] | 114 | !!---------------------------------------------------------------------- |
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| 115 | |
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| 116 | IF(lwp) THEN |
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| 117 | WRITE(numout,*) |
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| 118 | WRITE(numout,*) 'dom_hgr : define the horizontal mesh from ithe following par_oce parameters ' |
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| 119 | WRITE(numout,*) '~~~~~~~ type of horizontal mesh jphgr_msh = ', jphgr_msh |
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| 120 | WRITE(numout,*) ' position of the first row and ppglam0 = ', ppglam0 |
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| 121 | WRITE(numout,*) ' column grid-point (degrees) ppgphi0 = ', ppgphi0 |
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| 122 | WRITE(numout,*) ' zonal grid-spacing (degrees) ppe1_deg = ', ppe1_deg |
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| 123 | WRITE(numout,*) ' meridional grid-spacing (degrees) ppe2_deg = ', ppe2_deg |
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| 124 | WRITE(numout,*) ' zonal grid-spacing (meters) ppe1_m = ', ppe1_m |
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| 125 | WRITE(numout,*) ' meridional grid-spacing (meters) ppe2_m = ', ppe2_m |
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| 126 | ENDIF |
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| 127 | |
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| 128 | |
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| 129 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
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| 130 | |
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| 131 | CASE ( 0 ) ! curvilinear coordinate on the sphere read in coordinate.nc file |
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| 132 | |
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| 133 | IF(lwp) WRITE(numout,*) |
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[81] | 134 | IF(lwp) WRITE(numout,*) ' curvilinear coordinate on the sphere read in "coordinate" file' |
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[239] | 135 | |
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[81] | 136 | CALL hgr_read ! Defaultl option : NetCDF file |
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[3] | 137 | |
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[81] | 138 | ! ! ===================== |
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| 139 | IF( cp_cfg == "orca" .AND. jp_cfg == 2 ) THEN ! ORCA R2 configuration |
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| 140 | ! ! ===================== |
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| 141 | IF( n_cla == 0 ) THEN |
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[236] | 142 | |
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| 143 | ii0 = 139 ; ii1 = 140 ! Gibraltar Strait (e2u = 20 km) |
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| 144 | ij0 = 102 ; ij1 = 102 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 20.e3 |
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| 145 | IF(lwp) WRITE(numout,*) |
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| 146 | IF(lwp) WRITE(numout,*) ' orca_r2: Gibraltar : e2u reduced to 20 km' |
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| 147 | ii0 = 160 ; ii1 = 160 ! Bab el Mandeb (e2u = 18 km) |
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[81] | 148 | ij0 = 88 ; ij1 = 88 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 18.e3 |
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| 149 | IF(lwp) WRITE(numout,*) |
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| 150 | IF(lwp) WRITE(numout,*) ' orca_r2: Bab el Mandeb: e2u reduced to 18 km' |
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| 151 | ENDIF |
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[3] | 152 | |
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[81] | 153 | ii0 = 145 ; ii1 = 146 ! Sound Strait (e2u = 15 km) |
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| 154 | ij0 = 116 ; ij1 = 116 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 15.e3 |
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| 155 | IF(lwp) WRITE(numout,*) |
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| 156 | IF(lwp) WRITE(numout,*) ' orca_r2: Reduced e2u at the Sound Strait' |
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| 157 | ! |
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| 158 | ENDIF |
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| 159 | |
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| 160 | ! ! ====================== |
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| 161 | IF( cp_cfg == "orca" .AND. jp_cfg == 05 ) THEN ! ORCA R05 configuration |
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| 162 | ! ! ====================== |
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| 163 | ii0 = 563 ; ii1 = 564 ! Gibraltar Strait (e2u = 20 km) |
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| 164 | ij0 = 327 ; ij1 = 327 ; e2u( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 20.e3 |
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| 165 | IF(lwp) WRITE(numout,*) |
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| 166 | IF(lwp) WRITE(numout,*) ' orca_r05: Reduced e2u at the Gibraltar Strait' |
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| 167 | ! |
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| 168 | ENDIF |
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| 169 | |
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| 170 | |
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[3] | 171 | ! N.B. : General case, lat and long function of both i and j indices: |
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| 172 | ! e1t(ji,jj) = ra * rad * SQRT( ( cos( rad*gphit(ji,jj) ) * fsdila( zti, ztj ) )**2 & |
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| 173 | ! + ( fsdiph( zti, ztj ) )**2 ) |
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| 174 | ! e1u(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiu(ji,jj) ) * fsdila( zui, zuj ) )**2 & |
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| 175 | ! + ( fsdiph( zui, zuj ) )**2 ) |
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| 176 | ! e1v(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiv(ji,jj) ) * fsdila( zvi, zvj ) )**2 & |
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| 177 | ! + ( fsdiph( zvi, zvj ) )**2 ) |
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| 178 | ! e1f(ji,jj) = ra * rad * SQRT( ( cos( rad*gphif(ji,jj) ) * fsdila( zfi, zfj ) )**2 & |
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| 179 | ! + ( fsdiph( zfi, zfj ) )**2 ) |
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| 180 | ! |
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| 181 | ! e2t(ji,jj) = ra * rad * SQRT( ( cos( rad*gphit(ji,jj) ) * fsdjla( zti, ztj ) )**2 & |
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| 182 | ! + ( fsdjph( zti, ztj ) )**2 ) |
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| 183 | ! e2u(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiu(ji,jj) ) * fsdjla( zui, zuj ) )**2 & |
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| 184 | ! + ( fsdjph( zui, zuj ) )**2 ) |
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| 185 | ! e2v(ji,jj) = ra * rad * SQRT( ( cos( rad*gphiv(ji,jj) ) * fsdjla( zvi, zvj ) )**2 & |
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| 186 | ! + ( fsdjph( zvi, zvj ) )**2 ) |
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| 187 | ! e2f(ji,jj) = ra * rad * SQRT( ( cos( rad*gphif(ji,jj) ) * fsdjla( zfi, zfj ) )**2 & |
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| 188 | ! + ( fsdjph( zfi, zfj ) )**2 ) |
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| 189 | |
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| 190 | |
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| 191 | CASE ( 1 ) ! geographical mesh on the sphere with regular grid-spacing |
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| 192 | |
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| 193 | IF(lwp) WRITE(numout,*) |
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| 194 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere with regular grid-spacing' |
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| 195 | IF(lwp) WRITE(numout,*) ' given by ppe1_deg and ppe2_deg' |
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| 196 | |
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| 197 | DO jj = 1, jpj |
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| 198 | DO ji = 1, jpi |
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| 199 | zti = FLOAT( ji - 1 + nimpp - 1 ) ; ztj = FLOAT( jj - 1 + njmpp - 1 ) |
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| 200 | zui = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = FLOAT( jj - 1 + njmpp - 1 ) |
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| 201 | zvi = FLOAT( ji - 1 + nimpp - 1 ) ; zvj = FLOAT( jj - 1 + njmpp - 1 ) + 0.5 |
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| 202 | zfi = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = FLOAT( jj - 1 + njmpp - 1 ) + 0.5 |
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| 203 | ! Longitude |
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| 204 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
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| 205 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
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| 206 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
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| 207 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
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| 208 | ! Latitude |
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| 209 | gphit(ji,jj) = ppgphi0 + ppe2_deg * ztj |
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| 210 | gphiu(ji,jj) = ppgphi0 + ppe2_deg * zuj |
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| 211 | gphiv(ji,jj) = ppgphi0 + ppe2_deg * zvj |
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| 212 | gphif(ji,jj) = ppgphi0 + ppe2_deg * zfj |
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| 213 | ! e1 |
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| 214 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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| 215 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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| 216 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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| 217 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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| 218 | ! e2 |
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| 219 | e2t(ji,jj) = ra * rad * ppe2_deg |
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| 220 | e2u(ji,jj) = ra * rad * ppe2_deg |
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| 221 | e2v(ji,jj) = ra * rad * ppe2_deg |
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| 222 | e2f(ji,jj) = ra * rad * ppe2_deg |
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| 223 | END DO |
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| 224 | END DO |
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| 225 | |
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| 226 | |
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| 227 | CASE ( 2:3 ) ! f- or beta-plane with regular grid-spacing |
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| 228 | |
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| 229 | IF(lwp) WRITE(numout,*) |
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| 230 | IF(lwp) WRITE(numout,*) ' f- or beta-plane with regular grid-spacing' |
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| 231 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
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| 232 | |
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| 233 | ! Position coordinates (in kilometers) |
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| 234 | ! ========== |
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| 235 | glam0 = 0.e0 |
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| 236 | gphi0 = - ppe2_m * 1.e-3 |
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[389] | 237 | |
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| 238 | #if defined key_AGRIF && defined key_eel_r6 |
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| 239 | IF (.Not.Agrif_Root()) THEN |
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| 240 | glam0 = Agrif_Parent(glam0) + (Agrif_ix())*Agrif_Parent(ppe1_m) * 1.e-3 |
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| 241 | gphi0 = Agrif_Parent(gphi0) + (Agrif_iy())*Agrif_Parent(ppe2_m) * 1.e-3 |
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| 242 | ppe1_m = Agrif_Parent(ppe1_m)/Agrif_Rhox() |
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| 243 | ppe2_m = Agrif_Parent(ppe2_m)/Agrif_Rhoy() |
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| 244 | ENDIF |
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| 245 | #endif |
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[3] | 246 | DO jj = 1, jpj |
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| 247 | DO ji = 1, jpi |
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| 248 | glamt(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( FLOAT( ji - 1 + nimpp - 1 ) ) |
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| 249 | glamu(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ) |
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| 250 | glamv(ji,jj) = glamt(ji,jj) |
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| 251 | glamf(ji,jj) = glamu(ji,jj) |
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| 252 | |
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| 253 | gphit(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( FLOAT( jj - 1 + njmpp - 1 ) ) |
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| 254 | gphiu(ji,jj) = gphit(ji,jj) |
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| 255 | gphiv(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( FLOAT( jj - 1 + njmpp - 1 ) + 0.5 ) |
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| 256 | gphif(ji,jj) = gphiv(ji,jj) |
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| 257 | END DO |
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| 258 | END DO |
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| 259 | |
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| 260 | ! Horizontal scale factors (in meters) |
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| 261 | ! ====== |
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| 262 | e1t(:,:) = ppe1_m ; e2t(:,:) = ppe2_m |
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| 263 | e1u(:,:) = ppe1_m ; e2u(:,:) = ppe2_m |
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| 264 | e1v(:,:) = ppe1_m ; e2v(:,:) = ppe2_m |
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| 265 | e1f(:,:) = ppe1_m ; e2f(:,:) = ppe2_m |
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| 266 | |
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| 267 | CASE ( 4 ) ! geographical mesh on the sphere, isotropic MERCATOR type |
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| 268 | |
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| 269 | IF(lwp) WRITE(numout,*) |
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| 270 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere, MERCATOR type' |
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| 271 | IF(lwp) WRITE(numout,*) ' longitudinal/latitudinal spacing given by ppe1_deg' |
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| 272 | IF ( ppgphi0 == -90 ) THEN |
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| 273 | IF(lwp) WRITE(numout,*) ' Mercator grid cannot start at south pole !!!! ' |
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| 274 | IF(lwp) WRITE(numout,*) ' We stop ' |
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| 275 | STOP |
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| 276 | ENDIF |
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| 277 | |
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| 278 | ! Find index corresponding to the equator, given the grid spacing e1_deg |
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| 279 | ! and the (approximate) southern latitude ppgphi0. |
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| 280 | ! This way we ensure that the equator is at a "T / U" point, when in the domain. |
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| 281 | ! The formula should work even if the equator is outside the domain. |
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| 282 | zarg = rpi / 4. - rpi / 180. * ppgphi0 / 2. |
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[29] | 283 | ijeq = ABS( 180./rpi * LOG( COS( zarg ) / SIN( zarg ) ) / ppe1_deg ) |
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[224] | 284 | IF( ppgphi0 > 0 ) ijeq = -ijeq |
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[3] | 285 | |
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[29] | 286 | IF(lwp) WRITE(numout,*) ' Index of the equator on the MERCATOR grid:', ijeq |
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[3] | 287 | |
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| 288 | DO jj = 1, jpj |
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| 289 | DO ji = 1, jpi |
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[29] | 290 | zti = FLOAT( ji - 1 + nimpp - 1 ) ; ztj = FLOAT( jj - ijeq + njmpp - 1 ) |
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| 291 | zui = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = FLOAT( jj - ijeq + njmpp - 1 ) |
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| 292 | zvi = FLOAT( ji - 1 + nimpp - 1 ) ; zvj = FLOAT( jj - ijeq + njmpp - 1 ) + 0.5 |
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| 293 | zfi = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = FLOAT( jj - ijeq + njmpp - 1 ) + 0.5 |
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[3] | 294 | ! Longitude |
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| 295 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
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| 296 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
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| 297 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
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| 298 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
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| 299 | ! Latitude |
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| 300 | gphit(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* ztj ) ) |
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[93] | 301 | gphiu(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zuj ) ) |
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| 302 | gphiv(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zvj ) ) |
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| 303 | gphif(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zfj ) ) |
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[3] | 304 | ! e1 |
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| 305 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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| 306 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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| 307 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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| 308 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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| 309 | ! e2 |
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| 310 | e2t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
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| 311 | e2u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
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| 312 | e2v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
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| 313 | e2f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
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| 314 | END DO |
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| 315 | END DO |
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| 316 | |
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[93] | 317 | CASE ( 5 ) ! beta-plane with regular grid-spacing and rotated domain (GYRE configuration) |
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| 318 | |
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| 319 | IF(lwp) WRITE(numout,*) |
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| 320 | IF(lwp) WRITE(numout,*) ' beta-plane with regular grid-spacing and rotated domain (GYRE configuration)' |
---|
| 321 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
---|
| 322 | |
---|
| 323 | ! Position coordinates (in kilometers) |
---|
| 324 | ! ========== |
---|
| 325 | |
---|
[167] | 326 | ! angle 45deg and ze1=106.e+3 / jp_cfg forced -> zlam1 = -85deg, zphi1 = 29degN |
---|
[93] | 327 | zlam1 = -85 |
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| 328 | zphi1 = 29 |
---|
[167] | 329 | ! resolution in meters |
---|
| 330 | ze1 = 106000. / FLOAT(jp_cfg) |
---|
| 331 | ! benchmark: forced the resolution to be about 100 km |
---|
| 332 | IF( nbench /= 0 ) ze1 = 106000.e0 |
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[93] | 333 | zsin_alpha = - SQRT( 2. ) / 2. |
---|
| 334 | zcos_alpha = SQRT( 2. ) / 2. |
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| 335 | ze1deg = ze1 / (ra * rad) |
---|
| 336 | IF( nbench /= 0 ) ze1deg = ze1deg / FLOAT(jp_cfg) ! benchmark: keep the lat/+lon |
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[167] | 337 | ! ! at the right jp_cfg resolution |
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[93] | 338 | glam0 = zlam1 + zcos_alpha * ze1deg * FLOAT( jpjglo-2 ) |
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| 339 | gphi0 = zphi1 + zsin_alpha * ze1deg * FLOAT( jpjglo-2 ) |
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| 340 | |
---|
| 341 | IF(lwp) WRITE(numout,*) 'ze1', ze1, 'cosalpha', zcos_alpha, 'sinalpha', zsin_alpha |
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| 342 | IF(lwp) WRITE(numout,*) 'ze1deg', ze1deg, 'glam0', glam0, 'gphi0', gphi0 |
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| 343 | |
---|
| 344 | DO jj = 1, jpj |
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| 345 | DO ji = 1, jpi |
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| 346 | zim1 = FLOAT( ji + nimpp - 1 ) - 1. ; zim05 = FLOAT( ji + nimpp - 1 ) - 1.5 |
---|
| 347 | zjm1 = FLOAT( jj + njmpp - 1 ) - 1. ; zjm05 = FLOAT( jj + njmpp - 1 ) - 1.5 |
---|
| 348 | |
---|
| 349 | glamf(ji,jj) = glam0 + zim1 * ze1deg * zcos_alpha + zjm1 * ze1deg * zsin_alpha |
---|
| 350 | gphif(ji,jj) = gphi0 - zim1 * ze1deg * zsin_alpha + zjm1 * ze1deg * zcos_alpha |
---|
| 351 | |
---|
| 352 | glamt(ji,jj) = glam0 + zim05 * ze1deg * zcos_alpha + zjm05 * ze1deg * zsin_alpha |
---|
| 353 | gphit(ji,jj) = gphi0 - zim05 * ze1deg * zsin_alpha + zjm05 * ze1deg * zcos_alpha |
---|
| 354 | |
---|
| 355 | glamu(ji,jj) = glam0 + zim1 * ze1deg * zcos_alpha + zjm05 * ze1deg * zsin_alpha |
---|
| 356 | gphiu(ji,jj) = gphi0 - zim1 * ze1deg * zsin_alpha + zjm05 * ze1deg * zcos_alpha |
---|
| 357 | |
---|
| 358 | glamv(ji,jj) = glam0 + zim05 * ze1deg * zcos_alpha + zjm1 * ze1deg * zsin_alpha |
---|
| 359 | gphiv(ji,jj) = gphi0 - zim05 * ze1deg * zsin_alpha + zjm1 * ze1deg * zcos_alpha |
---|
| 360 | END DO |
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| 361 | END DO |
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| 362 | |
---|
| 363 | ! Horizontal scale factors (in meters) |
---|
| 364 | ! ====== |
---|
| 365 | e1t(:,:) = ze1 ; e2t(:,:) = ze1 |
---|
| 366 | e1u(:,:) = ze1 ; e2u(:,:) = ze1 |
---|
| 367 | e1v(:,:) = ze1 ; e2v(:,:) = ze1 |
---|
| 368 | e1f(:,:) = ze1 ; e2f(:,:) = ze1 |
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| 369 | |
---|
[3] | 370 | CASE DEFAULT |
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| 371 | IF(lwp) WRITE(numout,cform_err) |
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| 372 | IF(lwp) WRITE(numout,*) ' bad flag value for jphgr_msh = ', jphgr_msh |
---|
| 373 | nstop = nstop + 1 |
---|
| 374 | |
---|
| 375 | END SELECT |
---|
| 376 | |
---|
| 377 | |
---|
| 378 | ! Control printing : Grid informations (if not restart) |
---|
| 379 | ! ---------------- |
---|
| 380 | |
---|
| 381 | IF(lwp .AND. .NOT.ln_rstart ) THEN |
---|
| 382 | WRITE(numout,*) |
---|
| 383 | WRITE(numout,*) ' longitude and e1 scale factors' |
---|
| 384 | WRITE(numout,*) ' ------------------------------' |
---|
| 385 | WRITE(numout,9300) ( ji, glamt(ji,1), glamu(ji,1), & |
---|
| 386 | glamv(ji,1), glamf(ji,1), & |
---|
| 387 | e1t(ji,1), e1u(ji,1), & |
---|
| 388 | e1v(ji,1), e1f(ji,1), ji = 1, jpi,10) |
---|
| 389 | 9300 FORMAT( 1x, i4, f8.2,1x, f8.2,1x, f8.2,1x, f8.2, 1x, & |
---|
| 390 | f19.10, 1x, f19.10, 1x, f19.10, 1x, f19.10 ) |
---|
| 391 | |
---|
| 392 | WRITE(numout,*) |
---|
| 393 | WRITE(numout,*) ' latitude and e2 scale factors' |
---|
| 394 | WRITE(numout,*) ' -----------------------------' |
---|
| 395 | WRITE(numout,9300) ( jj, gphit(1,jj), gphiu(1,jj), & |
---|
| 396 | & gphiv(1,jj), gphif(1,jj), & |
---|
| 397 | & e2t (1,jj), e2u (1,jj), & |
---|
| 398 | & e2v (1,jj), e2f (1,jj), jj = 1, jpj, 10 ) |
---|
| 399 | ENDIF |
---|
| 400 | |
---|
| 401 | |
---|
| 402 | IF( nprint == 1 .AND. lwp ) THEN |
---|
| 403 | WRITE(numout,*) ' e1u e2u ' |
---|
| 404 | CALL prihre( e1u,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
| 405 | CALL prihre( e2u,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
| 406 | WRITE(numout,*) ' e1v e2v ' |
---|
| 407 | CALL prihre( e1v,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
| 408 | CALL prihre( e2v,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
| 409 | WRITE(numout,*) ' e1f e2f ' |
---|
| 410 | CALL prihre( e1f,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
| 411 | CALL prihre( e2f,jpi,jpj,jpi-5,jpi,1,jpj-5,jpj,1,0.,numout ) |
---|
| 412 | ENDIF |
---|
| 413 | |
---|
| 414 | |
---|
| 415 | ! ================= ! |
---|
| 416 | ! Coriolis factor ! |
---|
| 417 | ! ================= ! |
---|
| 418 | |
---|
| 419 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
---|
| 420 | |
---|
| 421 | CASE ( 0, 1, 4 ) ! mesh on the sphere |
---|
| 422 | |
---|
| 423 | ff(:,:) = 2. * omega * SIN( rad * gphif(:,:) ) |
---|
| 424 | |
---|
| 425 | CASE ( 2 ) ! f-plane at ppgphi0 |
---|
| 426 | |
---|
| 427 | ff(:,:) = 2. * omega * SIN( rad * ppgphi0 ) |
---|
| 428 | |
---|
| 429 | IF(lwp) WRITE(numout,*) ' f-plane: Coriolis parameter = constant = ', ff(1,1) |
---|
| 430 | |
---|
| 431 | CASE ( 3 ) ! beta-plane |
---|
| 432 | |
---|
[187] | 433 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
---|
| 434 | zphi0 = ppgphi0 - FLOAT( jpjglo/2) * ppe2_m / ( ra * rad ) ! latitude of the first row F-points |
---|
[389] | 435 | |
---|
| 436 | #if defined key_AGRIF && defined key_eel_r6 |
---|
| 437 | IF (.Not.Agrif_Root()) THEN |
---|
| 438 | zphi0 = ppgphi0 - FLOAT( Agrif_Parent(jpjglo)/2)*Agrif_Parent(ppe2_m) / (ra * rad) |
---|
| 439 | ENDIF |
---|
| 440 | #endif |
---|
[187] | 441 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
---|
[3] | 442 | |
---|
[187] | 443 | ff(:,:) = ( zf0 + zbeta * gphif(:,:) * 1.e+3 ) ! f = f0 +beta* y ( y=0 at south) |
---|
[389] | 444 | |
---|
[187] | 445 | IF(lwp) WRITE(numout,*) |
---|
| 446 | IF(lwp) WRITE(numout,*) ' Beta-plane: Beta parameter = constant = ', ff(1,1) |
---|
| 447 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies from ', ff(1,1),' to ', ff(1,jpj) |
---|
[3] | 448 | |
---|
[93] | 449 | CASE ( 5 ) ! beta-plane and rotated domain |
---|
| 450 | |
---|
| 451 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
---|
| 452 | zphi0 = 15.e0 ! latitude of the first row F-points |
---|
| 453 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
---|
| 454 | |
---|
| 455 | ff(:,:) = ( zf0 + zbeta * ABS( gphif(:,:) - zphi0 ) * rad * ra ) ! f = f0 +beta* y ( y=0 at south) |
---|
| 456 | |
---|
| 457 | IF(lwp) WRITE(numout,*) ' Beta-plane: Beta parameter = constant = ', ff(1,1) |
---|
| 458 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies from ', ff(1,1),' to ', ff(1,jpj) |
---|
| 459 | |
---|
[3] | 460 | END SELECT |
---|
| 461 | |
---|
| 462 | |
---|
| 463 | ! Control of domain for symetrical condition |
---|
| 464 | ! ------------------------------------------ |
---|
| 465 | ! The equator line must be the latitude coordinate axe |
---|
| 466 | |
---|
| 467 | IF( nperio == 2 ) THEN |
---|
| 468 | znorme = SQRT( SUM( gphiu(:,2) * gphiu(:,2) ) ) / FLOAT( jpi ) |
---|
| 469 | IF( znorme > 1.e-13 ) THEN |
---|
| 470 | IF(lwp) WRITE(numout,cform_err) |
---|
[81] | 471 | IF(lwp) WRITE(numout,*) ' ===>>>> : symmetrical condition: rerun with good equator line' |
---|
[3] | 472 | nstop = nstop + 1 |
---|
| 473 | ENDIF |
---|
| 474 | ENDIF |
---|
| 475 | |
---|
| 476 | END SUBROUTINE dom_hgr |
---|
| 477 | |
---|
| 478 | |
---|
[81] | 479 | SUBROUTINE hgr_read |
---|
[3] | 480 | !!--------------------------------------------------------------------- |
---|
[81] | 481 | !! *** ROUTINE hgr_read *** |
---|
[3] | 482 | !! |
---|
| 483 | !! ** Purpose : Read a coordinate file in NetCDF format |
---|
| 484 | !! |
---|
| 485 | !! ** Method : The mesh file has been defined trough a analytical |
---|
| 486 | !! or semi-analytical method. It is read in a NetCDF file. |
---|
| 487 | !! |
---|
| 488 | !! References : |
---|
| 489 | !! Marti, Madec and Delecluse, 1992, JGR, 97, 12,763-12,766. |
---|
| 490 | !! Madec, Imbard, 1996, Clim. Dyn., 12, 381-388. |
---|
| 491 | !! |
---|
| 492 | !! History : |
---|
| 493 | !! ! (O. Marti) Original code |
---|
| 494 | !! ! 91-03 (G. Madec) |
---|
| 495 | !! ! 92-07 (M. Imbard) |
---|
| 496 | !! ! 99-11 (M. Imbard) NetCDF format with IOIPSL |
---|
| 497 | !! ! 00-08 (D. Ludicone) Reduced section at Bab el Mandeb |
---|
| 498 | !! 8.5 ! 02-06 (G. Madec) F90: Free form |
---|
| 499 | !!---------------------------------------------------------------------- |
---|
| 500 | !! * Modules used |
---|
| 501 | USE ioipsl |
---|
| 502 | |
---|
| 503 | !! * Local declarations |
---|
[81] | 504 | LOGICAL :: llog = .FALSE. |
---|
[389] | 505 | CHARACTER(len=21) :: clname |
---|
[3] | 506 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 507 | INTEGER :: inum ! temporary logical unit |
---|
| 508 | INTEGER :: ilev, itime ! temporary integers |
---|
| 509 | REAL(wp) :: zdt, zdate0 ! temporary scalars |
---|
| 510 | REAL(wp) :: zdept(1) ! temporary workspace |
---|
| 511 | REAL(wp), DIMENSION(jpidta,jpjdta) :: & |
---|
[81] | 512 | zlamt, zphit, zdta ! temporary workspace (NetCDF read) |
---|
[3] | 513 | !!---------------------------------------------------------------------- |
---|
[389] | 514 | clname = 'coordinates' |
---|
| 515 | #if defined key_AGRIF |
---|
| 516 | if ( .NOT. Agrif_Root() ) then |
---|
| 517 | clname = TRIM(Agrif_CFixed())//'_'//TRIM(clname) |
---|
| 518 | endif |
---|
| 519 | #endif |
---|
[3] | 520 | |
---|
| 521 | |
---|
| 522 | ! 1. Read of the grid coordinates and scale factors |
---|
| 523 | ! ------------------------------------------------- |
---|
| 524 | |
---|
| 525 | IF(lwp) THEN |
---|
| 526 | WRITE(numout,*) |
---|
[81] | 527 | WRITE(numout,*) 'hgr_read : read the horizontal coordinates' |
---|
| 528 | WRITE(numout,*) '~~~~~~~~~~~ jpiglo = ', jpiglo, ' jpjglo = ', jpjglo, ' jpk = ', jpk |
---|
[3] | 529 | ENDIF |
---|
| 530 | |
---|
| 531 | ! read the file |
---|
| 532 | itime = 0 |
---|
| 533 | ilev = 1 |
---|
| 534 | zlamt(:,:) = 0.e0 |
---|
| 535 | zphit(:,:) = 0.e0 |
---|
[81] | 536 | CALL restini( clname, jpidta, jpjdta, zlamt , zphit, & |
---|
[352] | 537 | & ilev , zdept , 'NONE', & |
---|
| 538 | & itime , zdate0, zdt , inum, domain_id=nidom ) |
---|
[3] | 539 | |
---|
[389] | 540 | CALL restget( inum, 'glamt', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 541 | DO jj = 1, nlcj |
---|
| 542 | DO ji = 1, nlci |
---|
| 543 | glamt(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 544 | END DO |
---|
| 545 | END DO |
---|
[389] | 546 | CALL restget( inum, 'glamu', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 547 | DO jj = 1, nlcj |
---|
| 548 | DO ji = 1, nlci |
---|
| 549 | glamu(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 550 | END DO |
---|
| 551 | END DO |
---|
[389] | 552 | CALL restget( inum, 'glamv', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 553 | DO jj = 1, nlcj |
---|
| 554 | DO ji = 1, nlci |
---|
| 555 | glamv(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 556 | END DO |
---|
| 557 | END DO |
---|
[389] | 558 | CALL restget( inum, 'glamf', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 559 | DO jj = 1, nlcj |
---|
| 560 | DO ji = 1, nlci |
---|
| 561 | glamf(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 562 | END DO |
---|
| 563 | END DO |
---|
[389] | 564 | CALL restget( inum, 'gphit', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 565 | DO jj = 1, nlcj |
---|
| 566 | DO ji = 1, nlci |
---|
| 567 | gphit(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 568 | END DO |
---|
| 569 | END DO |
---|
[389] | 570 | CALL restget( inum, 'gphiu', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 571 | DO jj = 1, nlcj |
---|
| 572 | DO ji = 1, nlci |
---|
| 573 | gphiu(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 574 | END DO |
---|
| 575 | END DO |
---|
[389] | 576 | CALL restget( inum, 'gphiv', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 577 | DO jj = 1, nlcj |
---|
| 578 | DO ji = 1, nlci |
---|
| 579 | gphiv(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 580 | END DO |
---|
| 581 | END DO |
---|
[389] | 582 | CALL restget( inum, 'gphif', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 583 | DO jj = 1, nlcj |
---|
| 584 | DO ji = 1, nlci |
---|
| 585 | gphif(ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 586 | END DO |
---|
| 587 | END DO |
---|
[389] | 588 | CALL restget( inum, 'e1t', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 589 | DO jj = 1, nlcj |
---|
| 590 | DO ji = 1, nlci |
---|
| 591 | e1t (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 592 | END DO |
---|
| 593 | END DO |
---|
[389] | 594 | CALL restget( inum, 'e1u', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 595 | DO jj = 1, nlcj |
---|
| 596 | DO ji = 1, nlci |
---|
| 597 | e1u (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 598 | END DO |
---|
| 599 | END DO |
---|
[389] | 600 | CALL restget( inum, 'e1v', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 601 | DO jj = 1, nlcj |
---|
| 602 | DO ji = 1, nlci |
---|
| 603 | e1v (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 604 | END DO |
---|
| 605 | END DO |
---|
[389] | 606 | CALL restget( inum, 'e1f', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 607 | DO jj = 1, nlcj |
---|
| 608 | DO ji = 1, nlci |
---|
| 609 | e1f (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 610 | END DO |
---|
| 611 | END DO |
---|
[389] | 612 | CALL restget( inum, 'e2t', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 613 | DO jj = 1, nlcj |
---|
| 614 | DO ji = 1, nlci |
---|
| 615 | e2t (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 616 | END DO |
---|
| 617 | END DO |
---|
[389] | 618 | CALL restget( inum, 'e2u', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 619 | DO jj = 1, nlcj |
---|
| 620 | DO ji = 1, nlci |
---|
| 621 | e2u (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 622 | END DO |
---|
| 623 | END DO |
---|
[389] | 624 | CALL restget( inum, 'e2v', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 625 | DO jj = 1, nlcj |
---|
| 626 | DO ji = 1, nlci |
---|
| 627 | e2v (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 628 | END DO |
---|
| 629 | END DO |
---|
[389] | 630 | CALL restget( inum, 'e2f', jpidta, jpjdta, 1, itime, llog, zdta ) |
---|
[3] | 631 | DO jj = 1, nlcj |
---|
| 632 | DO ji = 1, nlci |
---|
| 633 | e2f (ji,jj) = zdta(mig(ji),mjg(jj)) |
---|
| 634 | END DO |
---|
| 635 | END DO |
---|
| 636 | |
---|
[81] | 637 | CALL restclo( inum ) |
---|
[3] | 638 | |
---|
| 639 | ! set extra rows add in mpp to none zero values |
---|
| 640 | DO jj = nlcj+1, jpj |
---|
| 641 | DO ji = 1, nlci |
---|
| 642 | glamt(ji,jj) = glamt(ji,1) ; gphit(ji,jj) = gphit(ji,1) |
---|
| 643 | glamu(ji,jj) = glamu(ji,1) ; gphiu(ji,jj) = gphiu(ji,1) |
---|
| 644 | glamv(ji,jj) = glamv(ji,1) ; gphiv(ji,jj) = gphiv(ji,1) |
---|
| 645 | glamf(ji,jj) = glamf(ji,1) ; gphif(ji,jj) = gphif(ji,1) |
---|
| 646 | e1t (ji,jj) = e1t (ji,1) ; e2t (ji,jj) = e2t (ji,1) |
---|
| 647 | e1u (ji,jj) = e1u (ji,1) ; e2u (ji,jj) = e2u (ji,1) |
---|
| 648 | e1v (ji,jj) = e1v (ji,1) ; e2v (ji,jj) = e2v (ji,1) |
---|
| 649 | e1f (ji,jj) = e1f (ji,1) ; e2f (ji,jj) = e2f (ji,1) |
---|
| 650 | END DO |
---|
| 651 | END DO |
---|
| 652 | |
---|
| 653 | ! set extra columns add in mpp to none zero values |
---|
| 654 | DO ji = nlci+1, jpi |
---|
| 655 | glamt(ji,:) = glamt(1,:) ; gphit(ji,:) = gphit(1,:) |
---|
| 656 | glamu(ji,:) = glamu(1,:) ; gphiu(ji,:) = gphiu(1,:) |
---|
| 657 | glamv(ji,:) = glamv(1,:) ; gphiv(ji,:) = gphiv(1,:) |
---|
| 658 | glamf(ji,:) = glamf(1,:) ; gphif(ji,:) = gphif(1,:) |
---|
| 659 | e1t (ji,:) = e1t (1,:) ; e2t (ji,:) = e2t (1,:) |
---|
| 660 | e1u (ji,:) = e1u (1,:) ; e2u (ji,:) = e2u (1,:) |
---|
| 661 | e1v (ji,:) = e1v (1,:) ; e2v (ji,:) = e2v (1,:) |
---|
| 662 | e1f (ji,:) = e1f (1,:) ; e2f (ji,:) = e2f (1,:) |
---|
| 663 | END DO |
---|
| 664 | |
---|
[81] | 665 | END SUBROUTINE hgr_read |
---|
[29] | 666 | |
---|
[3] | 667 | !!====================================================================== |
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| 668 | END MODULE domhgr |
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