[3] | 1 | MODULE wzvmod |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE wzvmod *** |
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| 4 | !! Ocean diagnostic variable : vertical velocity |
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| 5 | !!============================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! wzv : Compute the vertical velocity |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! * Modules used |
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| 11 | USE oce ! ocean dynamics and tracers variables |
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| 12 | USE dom_oce ! ocean space and time domain variables |
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| 13 | USE in_out_manager ! I/O manager |
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| 14 | |
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| 15 | IMPLICIT NONE |
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| 16 | PRIVATE |
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| 17 | |
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| 18 | !! * Routine accessibility |
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| 19 | PUBLIC wzv ! routine called by step.F90 and inidtr.F90 |
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| 20 | |
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| 21 | !! * Substitutions |
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| 22 | # include "domzgr_substitute.h90" |
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| 23 | !!---------------------------------------------------------------------- |
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| 24 | |
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| 25 | CONTAINS |
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| 26 | |
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| 27 | #if defined key_autotasking |
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| 28 | !!---------------------------------------------------------------------- |
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| 29 | !! 'key_autotasking' j-k-i loop (j-slab) |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | |
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| 32 | SUBROUTINE wzv( kt ) |
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| 33 | !!---------------------------------------------------------------------- |
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| 34 | !! *** ROUTINE wzv *** |
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| 35 | !! |
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| 36 | !! ** Purpose : Compute the now vertical velocity after the array swap |
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| 37 | !! |
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| 38 | !! ** Method : Using the incompressibility hypothesis, the vertical |
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| 39 | !! velocity is computed by integrating the horizontal divergence |
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| 40 | !! from the bottom to the surface. |
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| 41 | !! The boundary conditions are w=0 at the bottom (no flux) and, |
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| 42 | !! in regid-lid case, w=0 at the sea surface. |
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| 43 | !! |
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| 44 | !! ** action : wn array : the now vertical velocity |
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| 45 | !! |
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| 46 | !! History : |
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| 47 | !! 5.0 ! 90-10 (C. Levy, G. Madec) Original code |
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| 48 | !! 7.0 ! 96-01 (G. Madec) Statement function for e3 |
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| 49 | !! 8.5 ! 02-07 (G. Madec) Free form, F90 |
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| 50 | !!---------------------------------------------------------------------- |
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| 51 | !! * Arguments |
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| 52 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 53 | |
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| 54 | !! * Local declarations |
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| 55 | INTEGER :: jj, jk ! dummy loop indices |
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| 56 | !!---------------------------------------------------------------------- |
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| 57 | !! OPA 9.0, LODYC-IPSL (2003) |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | |
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| 60 | IF( kt == nit000 ) THEN |
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| 61 | IF(lwp) WRITE(numout,*) |
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| 62 | IF(lwp) WRITE(numout,*) 'wzv : vertical velocity from continuity eq.' |
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| 63 | IF(lwp) WRITE(numout,*) '~~~~~~~ auto-tasking case : j-k-i loop ' |
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| 64 | |
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| 65 | ! bottom boundary condition: w=0 (set once for all) |
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| 66 | wn(:,:,jpk) = 0.e0 |
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| 67 | ENDIF |
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| 68 | |
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| 69 | ! ! =============== |
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| 70 | DO jj = 1, jpj ! Vertical slab |
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| 71 | ! ! =============== |
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| 72 | ! Computation from the bottom |
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| 73 | DO jk = jpkm1, 1, -1 |
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| 74 | wn(:,jj,jk) = wn(:,jj,jk+1) - fse3t(:,jj,jk) * hdivn(:,jj,jk) |
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| 75 | END DO |
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| 76 | ! ! =============== |
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| 77 | END DO ! End of slab |
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| 78 | ! ! =============== |
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| 79 | |
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| 80 | IF(l_ctl) THEN ! print mean trends (used for debugging) |
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| 81 | WRITE(numout,*) ' w**2 - : ', SUM( wn(:,:,:) * wn (:,:,:) ) |
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| 82 | ENDIF |
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| 83 | |
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| 84 | END SUBROUTINE wzv |
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| 85 | |
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| 86 | #else |
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| 87 | !!---------------------------------------------------------------------- |
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| 88 | !! Default option k-j-i loop |
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| 89 | !!---------------------------------------------------------------------- |
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| 90 | |
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| 91 | SUBROUTINE wzv( kt ) |
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| 92 | !!---------------------------------------------------------------------- |
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| 93 | !! *** ROUTINE wzv *** |
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| 94 | !! |
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| 95 | !! ** Purpose : Compute the now vertical velocity after the array swap |
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| 96 | !! |
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| 97 | !! ** Method : Using the incompressibility hypothesis, the vertical |
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| 98 | !! velocity is computed by integrating the horizontal divergence |
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| 99 | !! from the bottom to the surface. |
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| 100 | !! The boundary conditions are w=0 at the bottom (no flux) and, |
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| 101 | !! in regid-lid case, w=0 at the sea surface. |
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| 102 | !! |
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| 103 | !! ** action : wn array : the now vertical velocity |
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| 104 | !! |
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| 105 | !! History : |
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| 106 | !! 9.0 ! 02-07 (G. Madec) Vector optimization |
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| 107 | !!---------------------------------------------------------------------- |
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| 108 | !! * Arguments |
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| 109 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 110 | |
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| 111 | !! * Local declarations |
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| 112 | INTEGER :: jk ! dummy loop indices |
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| 113 | !!---------------------------------------------------------------------- |
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| 114 | !! OPA 8.5, LODYC-IPSL (2002) |
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| 115 | !!---------------------------------------------------------------------- |
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| 116 | |
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| 117 | IF( kt == nit000 ) THEN |
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| 118 | IF(lwp) WRITE(numout,*) |
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| 119 | IF(lwp) WRITE(numout,*) 'wzv : vertical velocity from continuity eq.' |
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| 120 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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| 121 | |
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| 122 | ! bottom boundary condition: w=0 (set once for all) |
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| 123 | wn(:,:,jpk) = 0.e0 |
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| 124 | ENDIF |
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| 125 | |
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| 126 | ! Computation from the bottom |
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| 127 | DO jk = jpkm1, 1, -1 |
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| 128 | wn(:,:,jk) = wn(:,:,jk+1) - fse3t(:,:,jk) * hdivn(:,:,jk) |
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| 129 | END DO |
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| 130 | |
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| 131 | IF(l_ctl) THEN ! print mean trends (used for debugging) |
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| 132 | WRITE(numout,*) ' w**2 - : ', SUM( wn(:,:,:) * wn (:,:,:) ) |
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| 133 | ENDIF |
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| 134 | |
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| 135 | END SUBROUTINE wzv |
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| 136 | #endif |
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| 137 | |
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| 138 | !!====================================================================== |
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| 139 | END MODULE wzvmod |
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