| 1 | MODULE obc_oce |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE obc_oce *** |
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| 4 | !! Open Boundary Cond. : define related variables |
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| 5 | !!============================================================================== |
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| 6 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 7 | !! $Header$ |
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| 8 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | #if defined key_obc |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! 'key_obc' : Open Boundary Condition |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! history : |
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| 15 | !! 8.0 01/91 (CLIPPER) Original code |
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| 16 | !! 8.5 06/02 (C. Talandier) modules |
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| 17 | !! 06/04 (F. Durand) ORCA2_ZIND config |
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| 18 | !! 06/04 (F. Durand) Dimensions of arrays vsdta, tsdta, ssdta, |
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| 19 | !! vndta, tndta, sndta, uwdta, twdta, swdta, uedta, tedta, sedta |
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| 20 | !! are defined to the actual dimensions of the OBs i.e. |
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| 21 | !! (jpisd:jpisf,jpk,jptobc) for the South OB |
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| 22 | !! (jpind:jpinf,jpk,jptobc) for the North OB |
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| 23 | !! (jpjwd:jpjwf,jpk,jptobc) for the West OB |
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| 24 | !! (jpjed:jpjef,jpk,jptobc) for the East OB |
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| 25 | !! |
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| 26 | !!---------------------------------------------------------------------- |
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| 27 | !! * Modules used |
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| 28 | USE par_oce ! ocean parameters |
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| 29 | USE obc_par ! open boundary condition parameters |
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| 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | PUBLIC |
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| 33 | |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | !! open boundary variables |
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| 36 | !!---------------------------------------------------------------------- |
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| 37 | !! |
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| 38 | !!General variables for open boundaries: |
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| 39 | !!-------------------------------------- |
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| 40 | INTEGER :: & !: * namelist ??? * |
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| 41 | nbobc = 2 , & !: number of open boundaries ( 1=< nbobc =< 4 ) |
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| 42 | nobc_dta = 0 !: = 0 use the initial state as obc data |
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| 43 | ! ! = 1 read obc data in obcxxx.dta files |
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| 44 | |
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| 45 | LOGICAL :: ln_obc_clim = .true. !: obc data files are climatological |
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| 46 | LOGICAL :: ln_obc_fla = .false. !: Flather open boundary condition not used |
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| 47 | LOGICAL :: ln_vol_cst = .true. !: Conservation of the whole volume |
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| 48 | |
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| 49 | REAL(wp) :: & !!: open boundary namelist (namobc) |
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| 50 | rdpein = 1. , & !: damping time scale for inflow at East open boundary |
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| 51 | rdpwin = 1. , & !: " " at West open boundary |
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| 52 | rdpsin = 1. , & !: " " at South open boundary |
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| 53 | rdpnin = 1. , & !: " " at North open boundary |
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| 54 | rdpeob = 15. , & !: damping time scale for the climatology at East open boundary |
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| 55 | rdpwob = 15. , & !: " " at West open boundary |
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| 56 | rdpsob = 15. , & !: " " at South open boundary |
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| 57 | rdpnob = 15. , & !: " " at North open boundary |
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| 58 | volemp = 1. !: = 0 the total volume will have the variability of the |
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| 59 | ! surface Flux E-P else (volemp = 1) the volume will be constant |
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| 60 | ! = 1 the volume will be constant during all the integration. |
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| 61 | |
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| 62 | LOGICAL :: & !: |
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| 63 | lfbceast, lfbcwest, & !: logical flag for a fixed East and West open boundaries |
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| 64 | lfbcnorth, lfbcsouth !: logical flag for a fixed North and South open boundaries |
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| 65 | ! ! These logical flags are set to 'true' if damping time |
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| 66 | ! ! scale are set to 0 in the namelist, for both inflow and outflow). |
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| 67 | |
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| 68 | REAL(wp), PUBLIC :: & !: |
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| 69 | obcsurftot !: Total lateral surface of open boundaries |
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| 70 | |
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| 71 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
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| 72 | obctmsk, & !: mask array identical to tmask, execpt along OBC where it is set to 0 |
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| 73 | ! ! it used to calculate the cumulate flux E-P in the obcvol.F90 routine |
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| 74 | obcumask, obcvmask !: u-, v- Force filtering mask for the open |
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| 75 | ! ! boundary condition on grad D |
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| 76 | |
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| 77 | !!---------------- |
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| 78 | !! Rigid lid case: |
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| 79 | !!---------------- |
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| 80 | INTEGER :: nbic !: number of isolated coastlines ( 0 <= nbic <= 3 ) |
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| 81 | |
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| 82 | INTEGER, DIMENSION(jpnic,0:4,3) :: & !: |
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| 83 | miic, mjic !: position of isolated coastlines points |
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| 84 | |
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| 85 | INTEGER, DIMENSION(0:4,3) :: & !: |
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| 86 | mnic !: number of points on isolated coastlines |
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| 87 | |
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| 88 | REAL(wp), DIMENSION(jpi,jpj) :: & !: |
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| 89 | gcbob !: right hand side of the barotropic elliptic equation associated |
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| 90 | ! ! with the OBC |
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| 91 | |
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| 92 | REAL(wp), DIMENSION(jpi,jpj,3) :: & !: |
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| 93 | gcfobc !: coef. associated with the contribution of isolated coastlines |
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| 94 | ! ! to the right hand side of the barotropic elliptic equation |
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| 95 | |
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| 96 | REAL(wp), DIMENSION(3) :: & !: |
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| 97 | gcbic !: time variation of the barotropic stream function along the |
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| 98 | ! ! isolated coastlines |
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| 99 | |
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| 100 | REAL(wp), DIMENSION(1) :: & !: |
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| 101 | bsfic0 !: barotropic stream function on isolated coastline |
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| 102 | |
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| 103 | REAL(wp), DIMENSION(3) :: & !: |
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| 104 | bsfic !: barotropic stream function on isolated coastline |
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| 105 | |
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| 106 | !!-------------------- |
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| 107 | !! East open boundary: |
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| 108 | !!-------------------- |
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| 109 | INTEGER :: nie0 , nie1 !: do loop index in mpp case for jpieob |
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| 110 | INTEGER :: nie0p1, nie1p1 !: do loop index in mpp case for jpieob+1 |
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| 111 | INTEGER :: nie0m1, nie1m1 !: do loop index in mpp case for jpieob-1 |
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| 112 | INTEGER :: nje0 , nje1 !: do loop index in mpp case for jpjed, jpjef |
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| 113 | INTEGER :: nje0p1, nje1m1 !: do loop index in mpp case for jpjedp1,jpjefm1 |
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| 114 | INTEGER :: nje1m2, nje0m1 !: do loop index in mpp case for jpjefm1-1,jpjed |
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| 115 | |
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| 116 | REAL(wp), DIMENSION(jpj) :: & !: |
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| 117 | bsfeob !: now barotropic stream fuction computed at the OBC. The corres- |
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| 118 | ! ! ponding bsfn will be computed by the forward time step in dynspg. |
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| 119 | |
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| 120 | REAL(wp), DIMENSION(jpj,3,3) :: & !: |
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| 121 | bebnd !: east boundary barotropic streamfunction over 3 rows |
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| 122 | ! ! and 3 time step (now, before, and before before) |
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| 123 | |
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| 124 | REAL(wp), DIMENSION(jpjed:jpjef) :: & !: |
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| 125 | bfoe, & !: now climatology of the east boundary barotropic stream function |
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| 126 | sshfoe, & !: now climatology of the east boundary sea surface height |
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| 127 | ubtfoe,vbtfoe !: now climatology of the east boundary barotropic transport |
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| 128 | |
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| 129 | REAL(wp), DIMENSION(jpj,jpk) :: & !: |
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| 130 | ufoe, vfoe, & !: now climatology of the east boundary velocities |
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| 131 | tfoe, sfoe, & !: now climatology of the east boundary temperature and salinity |
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| 132 | uclie !: baroclinic componant of the zonal velocity after radiation |
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| 133 | ! ! in the obcdyn.F90 routine |
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| 134 | |
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| 135 | REAL(wp), DIMENSION(jpjed:jpjef,jpj) :: & !: |
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| 136 | sshfoe_b !: east boundary ssh correction averaged over the barotropic loop |
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| 137 | !: (if Flather's algoritm applied at open boundary) |
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| 138 | |
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| 139 | REAL(wp), DIMENSION(jpjed:jpjef,0:jptobc+1) :: & !: |
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| 140 | sshedta, ubtedta !: array used for interpolating monthly data on the east boundary |
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| 141 | |
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| 142 | REAL(wp), DIMENSION(jpjed:jpjef,jpk,jptobc) :: & !: |
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| 143 | uedta, tedta, sedta !: array used for interpolating monthly data on the east boundary |
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| 144 | |
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| 145 | !!------------------------------- |
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| 146 | !! Arrays for radiative East OBC: |
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| 147 | !!------------------------------- |
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| 148 | REAL(wp), DIMENSION(jpj,jpk,3,3) :: & !: |
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| 149 | uebnd, vebnd !: baroclinic u & v component of the velocity over 3 rows |
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| 150 | ! and 3 time step (now, before, and before before) |
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| 151 | |
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| 152 | REAL(wp), DIMENSION(jpj,jpk,2,2) :: & !: |
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| 153 | tebnd, sebnd !: East boundary temperature and salinity over 2 rows |
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| 154 | ! and 2 time step (now and before) |
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| 155 | |
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| 156 | REAL(wp), DIMENSION(jpj,jpk) :: & !: |
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| 157 | u_cxebnd, v_cxebnd !: Zonal component of the phase speed ratio computed with |
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| 158 | ! radiation of u and v velocity (respectively) at the |
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| 159 | ! east open boundary (u_cxebnd = cx rdt ) |
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| 160 | |
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| 161 | REAL(wp), DIMENSION(jpj,jpk) :: & !: |
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| 162 | uemsk, vemsk, temsk !: 2D mask for the East OB |
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| 163 | |
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| 164 | ! Note that those arrays are optimized for mpp case |
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| 165 | ! (hence the dimension jpj is the size of one processor subdomain) |
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| 166 | |
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| 167 | !!-------------------- |
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| 168 | !! West open boundary |
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| 169 | !!-------------------- |
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| 170 | INTEGER :: niw0 , niw1 !: do loop index in mpp case for jpiwob |
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| 171 | INTEGER :: niw0p1, niw1p1 !: do loop index in mpp case for jpiwob+1 |
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| 172 | INTEGER :: njw0 , njw1 !: do loop index in mpp case for jpjwd, jpjwf |
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| 173 | INTEGER :: njw0p1, njw1m1 !: do loop index in mpp case for jpjwdp1,jpjwfm1 |
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| 174 | INTEGER :: njw1m2, njw0m1 !: do loop index in mpp case for jpjwfm2,jpjwd |
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| 175 | |
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| 176 | REAL(wp), DIMENSION(jpj) :: & !: |
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| 177 | bsfwob !: now barotropic stream fuction computed at the OBC. The corres- |
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| 178 | ! ! ponding bsfn will be computed by the forward time step in dynspg. |
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| 179 | |
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| 180 | REAL(wp), DIMENSION(jpj,3,3) :: & !: |
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| 181 | bwbnd !: West boundary barotropic streamfunction over |
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| 182 | ! ! 3 rows and 3 time step (now, before, and before before) |
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| 183 | |
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| 184 | REAL(wp), DIMENSION(jpjwd:jpjwf) :: & !: |
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| 185 | bfow, & !: now climatology of the west boundary barotropic stream function |
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| 186 | sshfow, & !: now climatology of the west boundary sea surface height |
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| 187 | ubtfow,vbtfow !: now climatology of the west boundary barotropic transport |
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| 188 | |
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| 189 | REAL(wp), DIMENSION(jpj,jpk) :: & !: |
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| 190 | ufow, vfow, & !: now climatology of the west velocities |
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| 191 | tfow, sfow, & !: now climatology of the west temperature and salinity |
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| 192 | ucliw !: baroclinic componant of the zonal velocity after the radiation |
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| 193 | ! ! in the obcdyn.F90 routine |
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| 194 | |
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| 195 | REAL(wp), DIMENSION(jpjwd:jpjwf,jpj) :: & !: |
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| 196 | sshfow_b !: west boundary ssh correction averaged over the barotropic loop |
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| 197 | !: (if Flather's algoritm applied at open boundary) |
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| 198 | |
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| 199 | REAL(wp), DIMENSION(jpjwd:jpjwf,0:jptobc+1) :: & !: |
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| 200 | sshwdta, ubtwdta !: array used for interpolating monthly data on the west boundary |
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| 201 | |
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| 202 | REAL(wp), DIMENSION(jpjwd:jpjwf,jpk,jptobc) :: & !: |
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| 203 | uwdta, twdta, swdta !: array used for interpolating monthly data on the west boundary |
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| 204 | |
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| 205 | !!------------------------------- |
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| 206 | !! Arrays for radiative West OBC |
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| 207 | !!------------------------------- |
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| 208 | REAL(wp), DIMENSION(jpj,jpk,3,3) :: & !: |
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| 209 | uwbnd, vwbnd !: baroclinic u & v components of the velocity over 3 rows |
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| 210 | ! ! and 3 time step (now, before, and before before) |
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| 211 | |
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| 212 | REAL(wp), DIMENSION(jpj,jpk,2,2) :: & !: |
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| 213 | twbnd, swbnd !: west boundary temperature and salinity over 2 rows and |
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| 214 | ! ! 2 time step (now and before) |
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| 215 | |
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| 216 | REAL(wp), DIMENSION(jpj,jpk) :: & !: |
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| 217 | u_cxwbnd, v_cxwbnd !: Zonal component of the phase speed ratio computed with |
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| 218 | ! ! radiation of zonal and meridional velocity (respectively) |
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| 219 | ! ! at the west open boundary (u_cxwbnd = cx rdt ) |
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| 220 | |
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| 221 | REAL(wp), DIMENSION(jpj,jpk) :: & !: |
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| 222 | uwmsk, vwmsk, twmsk !: 2D mask for the West OB |
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| 223 | |
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| 224 | ! Note that those arrays are optimized for mpp case |
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| 225 | ! (hence the dimension jpj is the size of one processor subdomain) |
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| 226 | |
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| 227 | !!--------------------- |
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| 228 | !! North open boundary |
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| 229 | !!--------------------- |
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| 230 | INTEGER :: nin0 , nin1 !: do loop index in mpp case for jpind, jpinf |
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| 231 | INTEGER :: nin0p1, nin1m1 !: do loop index in mpp case for jpindp1, jpinfm1 |
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| 232 | INTEGER :: nin1m2, nin0m1 !: do loop index in mpp case for jpinfm1-1,jpind |
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| 233 | INTEGER :: njn0 , njn1 !: do loop index in mpp case for jpnob |
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| 234 | INTEGER :: njn0p1, njn1p1 !: do loop index in mpp case for jpnob+1 |
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| 235 | INTEGER :: njn0m1, njn1m1 !: do loop index in mpp case for jpnob-1 |
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| 236 | |
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| 237 | REAL(wp), DIMENSION(jpi) :: & !: |
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| 238 | bsfnob !: now barotropic stream fuction computed at the OBC. The corres- |
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| 239 | ! ! ponding bsfn will be computed by the forward time step in dynspg. |
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| 240 | |
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| 241 | REAL(wp), DIMENSION(jpi,3,3) :: & !: |
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| 242 | bnbnd !: north boundary barotropic streamfunction over |
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| 243 | ! ! 3 rows and 3 time step (now, before, and before before) |
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| 244 | |
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| 245 | REAL(wp), DIMENSION(jpind:jpinf) :: & !: |
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| 246 | bfon, & !: now climatology of the north boundary barotropic stream function |
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| 247 | sshfon, & !: now climatology of the north boundary sea surface height |
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| 248 | ubtfon,vbtfon !: now climatology of the north boundary barotropic transport |
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| 249 | |
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| 250 | REAL(wp), DIMENSION(jpi,jpk) :: & !: |
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| 251 | ufon, vfon, & !: now climatology of the north boundary velocities |
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| 252 | tfon, sfon, & !: now climatology of the north boundary temperature and salinity |
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| 253 | vclin !: baroclinic componant of the meridian velocity after the radiation |
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| 254 | ! ! in yhe obcdyn.F90 routine |
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| 255 | |
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| 256 | REAL(wp), DIMENSION(jpind:jpinf,jpj) :: & !: |
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| 257 | sshfon_b !: north boundary ssh correction averaged over the barotropic loop |
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| 258 | !: (if Flather's algoritm applied at open boundary) |
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| 259 | |
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| 260 | REAL(wp), DIMENSION(jpind:jpinf,0:jptobc+1) :: & !: |
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| 261 | sshndta, vbtndta !: array used for interpolating monthly data on the north boundary |
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| 262 | |
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| 263 | REAL(wp), DIMENSION(jpind:jpinf,jpk,jptobc) :: & !: |
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| 264 | vndta, tndta, sndta !: array used for interpolating monthly data on the north boundary |
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| 265 | |
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| 266 | !!-------------------------------- |
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| 267 | !! Arrays for radiative North OBC |
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| 268 | !!-------------------------------- |
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| 269 | !! |
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| 270 | REAL(wp), DIMENSION(jpi,jpk,3,3) :: & !: |
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| 271 | unbnd, vnbnd !: baroclinic u & v components of the velocity over 3 |
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| 272 | ! ! rows and 3 time step (now, before, and before before) |
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| 273 | |
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| 274 | REAL(wp), DIMENSION(jpi,jpk,2,2) :: & !: |
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| 275 | tnbnd, snbnd !: north boundary temperature and salinity over |
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| 276 | ! ! 2 rows and 2 time step (now and before) |
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| 277 | |
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| 278 | REAL(wp), DIMENSION(jpi,jpk) :: & !: |
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| 279 | u_cynbnd, v_cynbnd !: Meridional component of the phase speed ratio compu- |
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| 280 | ! ! ted with radiation of zonal and meridional velocity |
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| 281 | ! ! (respectively) at the north OB (u_cynbnd = cx rdt ) |
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| 282 | |
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| 283 | REAL(wp), DIMENSION(jpi,jpk) :: & !: |
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| 284 | unmsk, vnmsk, tnmsk !: 2D mask for the North OB |
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| 285 | |
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| 286 | ! Note that those arrays are optimized for mpp case |
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| 287 | ! (hence the dimension jpj is the size of one processor subdomain) |
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| 288 | |
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| 289 | !!--------------------- |
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| 290 | !! South open boundary |
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| 291 | !!--------------------- |
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| 292 | INTEGER :: nis0 , nis1 !: do loop index in mpp case for jpisd, jpisf |
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| 293 | INTEGER :: nis0p1, nis1m1 !: do loop index in mpp case for jpisdp1, jpisfm1 |
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| 294 | INTEGER :: nis1m2, nis0m1 !: do loop index in mpp case for jpisfm1-1,jpisd |
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| 295 | INTEGER :: njs0 , njs1 !: do loop index in mpp case for jpsob |
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| 296 | INTEGER :: njs0p1, njs1p1 !: do loop index in mpp case for jpsob+1 |
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| 297 | |
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| 298 | REAL(wp), DIMENSION(jpi) :: & !: |
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| 299 | bsfsob !: now barotropic stream fuction computed at the OBC.The corres- |
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| 300 | ! ! ponding bsfn will be computed by the forward time step in dynspg. |
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| 301 | REAL(wp), DIMENSION(jpi,3,3) :: & !: |
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| 302 | bsbnd !: south boundary barotropic stream function over |
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| 303 | ! ! 3 rows and 3 time step (now, before, and before before) |
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| 304 | |
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| 305 | REAL(wp), DIMENSION(jpisd:jpisf) :: & !: |
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| 306 | bfos, & !: now climatology of the south boundary barotropic stream function |
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| 307 | sshfos, & !: now climatology of the south boundary sea surface height |
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| 308 | ubtfos,vbtfos !: now climatology of the south boundary barotropic transport |
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| 309 | |
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| 310 | REAL(wp), DIMENSION(jpi,jpk) :: & !: |
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| 311 | ufos, vfos, & !: now climatology of the south boundary velocities |
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| 312 | tfos, sfos, & !: now climatology of the south boundary temperature and salinity |
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| 313 | vclis !: baroclinic componant of the meridian velocity after the radiation |
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| 314 | ! ! in the obcdyn.F90 routine |
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| 315 | |
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| 316 | REAL(wp), DIMENSION(jpisd:jpisf,jpj) :: & !: |
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| 317 | sshfos_b !: south boundary ssh correction averaged over the barotropic loop |
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| 318 | !: (if Flather's algoritm applied at open boundary) |
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| 319 | |
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| 320 | REAL(wp), DIMENSION(jpisd:jpisf,0:jptobc+1) :: & !: |
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| 321 | sshsdta, vbtsdta !: array used for interpolating monthly data on the south boundary |
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| 322 | |
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| 323 | REAL(wp), DIMENSION(jpisd:jpisf,jpk,jptobc) :: & !: |
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| 324 | vsdta, tsdta, ssdta !: array used for interpolating monthly data on the south boundary |
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| 325 | |
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| 326 | !!-------------------------------- |
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| 327 | !! Arrays for radiative South OBC |
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| 328 | !!-------------------------------- |
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| 329 | !! computed by the forward time step in dynspg. |
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| 330 | REAL(wp), DIMENSION(jpi,jpk,3,3) :: & !: |
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| 331 | usbnd, vsbnd !: baroclinic u & v components of the velocity over 3 |
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| 332 | ! ! rows and 3 time step (now, before, and before before) |
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| 333 | |
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| 334 | REAL(wp), DIMENSION(jpi,jpk,2,2) :: & !: |
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| 335 | tsbnd, ssbnd !: south boundary temperature and salinity over |
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| 336 | ! ! 2 rows and 2 time step (now and before) |
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| 337 | |
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| 338 | REAL(wp), DIMENSION(jpi,jpk) :: & !: |
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| 339 | u_cysbnd, v_cysbnd !: Meridional component of the phase speed ratio compu- |
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| 340 | ! ! ted with radiation of zonal and meridional velocity |
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| 341 | ! ! (repsectively) at the south OB (u_cynbnd = cx rdt ) |
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| 342 | |
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| 343 | REAL(wp), DIMENSION(jpi,jpk) :: & !: |
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| 344 | usmsk, vsmsk, tsmsk !: 2D mask for the South OB |
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| 345 | |
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| 346 | ! Note that those arrays are optimized for mpp case |
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| 347 | ! (hence the dimension jpj is the size of one processor subdomain) |
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| 348 | |
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| 349 | #else |
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| 350 | !!---------------------------------------------------------------------- |
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| 351 | !! Default option : Empty module |
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| 352 | !!---------------------------------------------------------------------- |
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| 353 | #endif |
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| 354 | |
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| 355 | !!====================================================================== |
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| 356 | END MODULE obc_oce |
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