1 | MODULE bdydyn3d |
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2 | !!====================================================================== |
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3 | !! *** MODULE bdydyn3d *** |
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4 | !! Unstructured Open Boundary Cond. : Flow relaxation scheme on baroclinic velocities |
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5 | !!====================================================================== |
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6 | !! History : 3.4 ! 2011 (D. Storkey) new module as part of BDY rewrite |
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7 | !!---------------------------------------------------------------------- |
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8 | #if defined key_bdy |
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9 | !!---------------------------------------------------------------------- |
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10 | !! 'key_bdy' : Unstructured Open Boundary Condition |
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11 | !!---------------------------------------------------------------------- |
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12 | !! bdy_dyn3d : apply open boundary conditions to baroclinic velocities |
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13 | !! bdy_dyn3d_frs : apply Flow Relaxation Scheme |
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14 | !!---------------------------------------------------------------------- |
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15 | USE timing ! Timing |
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16 | USE oce ! ocean dynamics and tracers |
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17 | USE dom_oce ! ocean space and time domain |
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18 | USE bdy_oce ! ocean open boundary conditions |
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19 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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20 | USE in_out_manager ! |
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21 | |
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22 | IMPLICIT NONE |
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23 | PRIVATE |
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24 | |
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25 | PUBLIC bdy_dyn3d ! routine called by bdy_dyn |
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26 | |
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27 | !!---------------------------------------------------------------------- |
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28 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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29 | !! $Id: bdydyn.F90 2528 2010-12-27 17:33:53Z rblod $ |
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30 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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31 | !!---------------------------------------------------------------------- |
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32 | CONTAINS |
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33 | |
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34 | SUBROUTINE bdy_dyn3d( kt ) |
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35 | !!---------------------------------------------------------------------- |
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36 | !! *** SUBROUTINE bdy_dyn3d *** |
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37 | !! |
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38 | !! ** Purpose : - Apply open boundary conditions for baroclinic velocities |
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39 | !! |
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40 | !!---------------------------------------------------------------------- |
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41 | INTEGER, INTENT( in ) :: kt ! Main time step counter |
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42 | !! |
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43 | INTEGER :: ib_bdy ! loop index |
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44 | !! |
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45 | |
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46 | DO ib_bdy=1, nb_bdy |
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47 | |
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48 | !!$ IF ( using Orlanski radiation conditions ) THEN |
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49 | !!$ CALL bdy_rad( kt, bdyidx(ib_bdy) ) |
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50 | !!$ ENDIF |
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51 | |
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52 | SELECT CASE( nn_dyn3d(ib_bdy) ) |
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53 | CASE(jp_none) |
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54 | CYCLE |
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55 | CASE(jp_frs) |
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56 | CALL bdy_dyn3d_frs( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt ) |
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57 | CASE DEFAULT |
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58 | CALL ctl_stop( 'bdy_dyn3d : unrecognised option for open boundaries for baroclinic velocities' ) |
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59 | END SELECT |
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60 | ENDDO |
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61 | |
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62 | END SUBROUTINE bdy_dyn3d |
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63 | |
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64 | SUBROUTINE bdy_dyn3d_frs( idx, dta, kt ) |
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65 | !!---------------------------------------------------------------------- |
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66 | !! *** SUBROUTINE bdy_dyn3d_frs *** |
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67 | !! |
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68 | !! ** Purpose : - Apply the Flow Relaxation Scheme for baroclinic velocities |
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69 | !! at open boundaries. |
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70 | !! |
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71 | !! References :- Engedahl H., 1995: Use of the flow relaxation scheme in |
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72 | !! a three-dimensional baroclinic ocean model with realistic |
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73 | !! topography. Tellus, 365-382. |
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74 | !!---------------------------------------------------------------------- |
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75 | INTEGER :: kt |
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76 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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77 | TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data |
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78 | !! |
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79 | INTEGER :: jb, jk ! dummy loop indices |
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80 | INTEGER :: ii, ij, igrd ! local integers |
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81 | REAL(wp) :: zwgt ! boundary weight |
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82 | !!---------------------------------------------------------------------- |
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83 | ! |
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84 | IF( nn_timing == 1 ) CALL timing_start('bdy_dyn3d_frs') |
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85 | ! |
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86 | igrd = 2 ! Relaxation of zonal velocity |
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87 | DO jb = 1, idx%nblen(igrd) |
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88 | DO jk = 1, jpkm1 |
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89 | ii = idx%nbi(jb,igrd) |
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90 | ij = idx%nbj(jb,igrd) |
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91 | zwgt = idx%nbw(jb,igrd) |
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92 | ua(ii,ij,jk) = ( ua(ii,ij,jk) + zwgt * ( dta%u3d(jb,jk) - ua(ii,ij,jk) ) ) * umask(ii,ij,jk) |
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93 | END DO |
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94 | END DO |
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95 | ! |
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96 | igrd = 3 ! Relaxation of meridional velocity |
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97 | DO jb = 1, idx%nblen(igrd) |
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98 | DO jk = 1, jpkm1 |
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99 | ii = idx%nbi(jb,igrd) |
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100 | ij = idx%nbj(jb,igrd) |
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101 | zwgt = idx%nbw(jb,igrd) |
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102 | va(ii,ij,jk) = ( va(ii,ij,jk) + zwgt * ( dta%v3d(jb,jk) - va(ii,ij,jk) ) ) * vmask(ii,ij,jk) |
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103 | END DO |
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104 | END DO |
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105 | CALL lbc_lnk( ua, 'U', -1. ) ; CALL lbc_lnk( va, 'V', -1. ) ! Boundary points should be updated |
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106 | ! |
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107 | IF( kt .eq. nit000 ) CLOSE( unit = 102 ) |
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108 | |
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109 | IF( nn_timing == 1 ) CALL timing_stop('bdy_dyn3d_frs') |
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110 | |
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111 | END SUBROUTINE bdy_dyn3d_frs |
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112 | |
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113 | |
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114 | #else |
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115 | !!---------------------------------------------------------------------- |
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116 | !! Dummy module NO Unstruct Open Boundary Conditions |
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117 | !!---------------------------------------------------------------------- |
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118 | CONTAINS |
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119 | SUBROUTINE bdy_dyn3d( kt ) ! Empty routine |
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120 | WRITE(*,*) 'bdy_dyn_frs: You should not have seen this print! error?', kt |
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121 | END SUBROUTINE bdy_dyn3d |
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122 | #endif |
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123 | |
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124 | !!====================================================================== |
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125 | END MODULE bdydyn3d |
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