[17] | 1 | MODULE advect_tracer_mod |
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[19] | 2 | USE icosa |
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[138] | 3 | IMPLICIT NONE |
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[17] | 4 | PRIVATE |
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[22] | 5 | |
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[186] | 6 | TYPE(t_field),SAVE,POINTER :: f_normal(:) |
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| 7 | TYPE(t_field),SAVE,POINTER :: f_tangent(:) |
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| 8 | TYPE(t_field),SAVE,POINTER :: f_gradq3d(:) |
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| 9 | TYPE(t_field),SAVE,POINTER :: f_cc(:) ! starting point of backward-trajectory (Miura approach) |
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| 10 | TYPE(t_field),SAVE,POINTER :: f_one_over_sqrt_leng(:) |
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[151] | 11 | |
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[186] | 12 | TYPE(t_message),SAVE :: req_u, req_cc, req_wfluxt, req_q, req_rhodz, req_gradq3d |
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[151] | 13 | |
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[136] | 14 | REAL(rstd), PARAMETER :: pente_max=2.0 ! for vlz |
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| 15 | |
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[151] | 16 | ! temporary shared variable for vlz |
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[186] | 17 | TYPE(t_field),SAVE,POINTER :: f_dzqw(:) ! vertical finite difference of q |
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| 18 | TYPE(t_field),SAVE,POINTER :: f_adzqw(:) ! abs(dzqw) |
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| 19 | TYPE(t_field),SAVE,POINTER :: f_dzq(:) ! limited slope of q |
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| 20 | TYPE(t_field),SAVE,POINTER :: f_wq(:) ! time-integrated flux of q |
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[151] | 21 | |
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[136] | 22 | PUBLIC init_advect_tracer, advect_tracer |
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| 23 | |
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[17] | 24 | CONTAINS |
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[22] | 25 | |
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[98] | 26 | SUBROUTINE init_advect_tracer |
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[22] | 27 | USE advect_mod |
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| 28 | REAL(rstd),POINTER :: tangent(:,:) |
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| 29 | REAL(rstd),POINTER :: normal(:,:) |
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[148] | 30 | REAL(rstd),POINTER :: one_over_sqrt_leng(:) |
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[23] | 31 | INTEGER :: ind |
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[22] | 32 | |
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[138] | 33 | CALL allocate_field(f_normal,field_u,type_real,3, name='normal') |
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| 34 | CALL allocate_field(f_tangent,field_u,type_real,3, name='tangent') |
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| 35 | CALL allocate_field(f_gradq3d,field_t,type_real,llm,3, name='gradq3d') |
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| 36 | CALL allocate_field(f_cc,field_u,type_real,llm,3, name='cc') |
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[148] | 37 | CALL allocate_field(f_one_over_sqrt_leng,field_t,type_real, name='one_over_sqrt_leng') |
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[151] | 38 | CALL allocate_field(f_dzqw, field_t, type_real, llm, name='dzqw') |
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| 39 | CALL allocate_field(f_adzqw, field_t, type_real, llm, name='adzqw') |
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| 40 | CALL allocate_field(f_dzq, field_t, type_real, llm, name='dzq') |
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| 41 | CALL allocate_field(f_wq, field_t, type_real, llm+1, name='wq') |
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| 42 | |
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[22] | 43 | DO ind=1,ndomain |
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[186] | 44 | IF (.NOT. assigned_domain(ind)) CYCLE |
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[22] | 45 | CALL swap_dimensions(ind) |
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| 46 | CALL swap_geometry(ind) |
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| 47 | normal=f_normal(ind) |
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| 48 | tangent=f_tangent(ind) |
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[148] | 49 | one_over_sqrt_leng=f_one_over_sqrt_leng(ind) |
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| 50 | CALL init_advect(normal,tangent,one_over_sqrt_leng) |
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[22] | 51 | END DO |
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| 52 | |
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[17] | 53 | END SUBROUTINE init_advect_tracer |
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[22] | 54 | |
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[136] | 55 | SUBROUTINE advect_tracer(f_hfluxt, f_wfluxt,f_u, f_q,f_rhodz) |
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[22] | 56 | USE advect_mod |
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[136] | 57 | USE mpipara |
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[145] | 58 | USE trace |
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[146] | 59 | USE write_field |
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[22] | 60 | IMPLICIT NONE |
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[145] | 61 | |
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[136] | 62 | TYPE(t_field),POINTER :: f_hfluxt(:) ! time-integrated horizontal mass flux |
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| 63 | TYPE(t_field),POINTER :: f_wfluxt(:) ! time-integrated vertical mass flux |
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| 64 | TYPE(t_field),POINTER :: f_u(:) ! velocity (for back-trajectories) |
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| 65 | TYPE(t_field),POINTER :: f_q(:) ! tracer |
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| 66 | TYPE(t_field),POINTER :: f_rhodz(:) ! mass field at beginning of macro time step |
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[17] | 67 | |
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[148] | 68 | REAL(rstd),POINTER :: q(:,:,:), normal(:,:), tangent(:,:), one_over_sqrt_leng(:), gradq3d(:,:,:), cc(:,:,:) |
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[136] | 69 | REAL(rstd),POINTER :: hfluxt(:,:), wfluxt(:,:) |
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| 70 | REAL(rstd),POINTER :: rhodz(:,:), u(:,:) |
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[151] | 71 | ! temporary shared variable for vlz |
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| 72 | REAL(rstd),POINTER :: dzqw(:,:) ! vertical finite difference of q |
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| 73 | REAL(rstd),POINTER :: adzqw(:,:) ! abs(dzqw) |
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| 74 | REAL(rstd),POINTER :: dzq(:,:) ! limited slope of q |
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| 75 | REAL(rstd),POINTER :: wq(:,:) ! time-integrated flux of q |
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| 76 | |
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| 77 | INTEGER :: ind,k |
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| 78 | LOGICAL,SAVE :: first=.TRUE. |
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| 79 | !$OMP THREADPRIVATE(first) |
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[17] | 80 | |
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[151] | 81 | IF (first) THEN |
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| 82 | first=.FALSE. |
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| 83 | CALL init_message(f_u,req_e1_vect,req_u) |
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[174] | 84 | CALL init_message(f_cc,req_e1_scal,req_cc) |
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[151] | 85 | CALL init_message(f_wfluxt,req_i1,req_wfluxt) |
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| 86 | CALL init_message(f_q,req_i1,req_q) |
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| 87 | CALL init_message(f_rhodz,req_i1,req_rhodz) |
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| 88 | CALL init_message(f_gradq3d,req_i1,req_gradq3d) |
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| 89 | ENDIF |
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| 90 | |
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[186] | 91 | !!$OMP BARRIER |
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[151] | 92 | |
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[145] | 93 | CALL trace_start("advect_tracer") |
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| 94 | |
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[151] | 95 | CALL send_message(f_u,req_u) |
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[186] | 96 | CALL wait_message(req_u) |
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[151] | 97 | CALL send_message(f_wfluxt,req_wfluxt) |
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[186] | 98 | CALL wait_message(req_wfluxt) |
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[151] | 99 | CALL send_message(f_q,req_q) |
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[186] | 100 | CALL wait_message(req_q) |
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[151] | 101 | CALL send_message(f_rhodz,req_rhodz) |
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| 102 | CALL wait_message(req_rhodz) |
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[186] | 103 | |
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| 104 | ! CALL wait_message(req_u) |
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| 105 | ! CALL wait_message(req_wfluxt) |
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| 106 | ! CALL wait_message(req_q) |
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| 107 | ! CALL wait_message(req_rhodz) |
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[151] | 108 | |
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[138] | 109 | ! 1/2 vertical transport + back-trajectories |
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[22] | 110 | DO ind=1,ndomain |
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[186] | 111 | IF (.NOT. assigned_domain(ind)) CYCLE |
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[17] | 112 | CALL swap_dimensions(ind) |
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| 113 | CALL swap_geometry(ind) |
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[138] | 114 | normal = f_normal(ind) |
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| 115 | tangent = f_tangent(ind) |
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| 116 | cc = f_cc(ind) |
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| 117 | u = f_u(ind) |
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[136] | 118 | q = f_q(ind) |
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| 119 | rhodz = f_rhodz(ind) |
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| 120 | wfluxt = f_wfluxt(ind) |
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[151] | 121 | dzqw = f_dzqw(ind) |
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| 122 | adzqw = f_adzqw(ind) |
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| 123 | dzq = f_dzq(ind) |
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| 124 | wq = f_wq(ind) |
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[148] | 125 | |
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[138] | 126 | DO k = 1, nqtot |
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[151] | 127 | CALL vlz(k==nqtot,0.5, wfluxt,rhodz,q(:,:,k),1,dzqw, adzqw, dzq, wq) |
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[138] | 128 | END DO |
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[148] | 129 | |
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[138] | 130 | CALL compute_backward_traj(tangent,normal,u,0.5*dt*itau_adv, cc) |
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[151] | 131 | |
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[22] | 132 | END DO |
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[17] | 133 | |
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[174] | 134 | CALL send_message(f_cc,req_cc) |
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[186] | 135 | CALL wait_message(req_cc) |
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[17] | 136 | |
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[174] | 137 | |
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[138] | 138 | ! horizontal transport - split in two to place transfer of gradq3d |
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[186] | 139 | !!$OMP BARRIER |
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[136] | 140 | DO k = 1, nqtot |
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[138] | 141 | DO ind=1,ndomain |
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[186] | 142 | IF (.NOT. assigned_domain(ind)) CYCLE |
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[138] | 143 | CALL swap_dimensions(ind) |
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| 144 | CALL swap_geometry(ind) |
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| 145 | q = f_q(ind) |
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| 146 | gradq3d = f_gradq3d(ind) |
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[148] | 147 | one_over_sqrt_leng=f_one_over_sqrt_leng(ind) |
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[186] | 148 | CALL compute_gradq3d(q(:,:,k),one_over_sqrt_leng,gradq3d,xyz_i,xyz_v) |
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[138] | 149 | END DO |
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[17] | 150 | |
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[151] | 151 | CALL send_message(f_gradq3d,req_gradq3d) |
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[186] | 152 | ! CALL wait_message(req_cc) |
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[151] | 153 | CALL wait_message(req_gradq3d) |
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[17] | 154 | |
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[148] | 155 | |
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[138] | 156 | DO ind=1,ndomain |
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[186] | 157 | IF (.NOT. assigned_domain(ind)) CYCLE |
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[138] | 158 | CALL swap_dimensions(ind) |
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| 159 | CALL swap_geometry(ind) |
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| 160 | cc = f_cc(ind) |
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| 161 | q = f_q(ind) |
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| 162 | rhodz = f_rhodz(ind) |
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| 163 | hfluxt = f_hfluxt(ind) |
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| 164 | gradq3d = f_gradq3d(ind) |
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| 165 | CALL compute_advect_horiz(k==nqtot,hfluxt,cc,gradq3d, rhodz,q(:,:,k)) |
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| 166 | END DO |
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| 167 | END DO |
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[146] | 168 | |
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[136] | 169 | ! 1/2 vertical transport |
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[186] | 170 | !!$OMP BARRIER |
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[151] | 171 | |
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[138] | 172 | DO ind=1,ndomain |
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[186] | 173 | IF (.NOT. assigned_domain(ind)) CYCLE |
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[138] | 174 | CALL swap_dimensions(ind) |
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| 175 | CALL swap_geometry(ind) |
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| 176 | q = f_q(ind) |
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| 177 | rhodz = f_rhodz(ind) |
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| 178 | wfluxt = f_wfluxt(ind) |
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[151] | 179 | dzqw = f_dzqw(ind) |
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| 180 | adzqw = f_adzqw(ind) |
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| 181 | dzq = f_dzq(ind) |
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| 182 | wq = f_wq(ind) |
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| 183 | |
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[138] | 184 | DO k = 1,nqtot |
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[151] | 185 | CALL vlz(k==nqtot, 0.5,wfluxt,rhodz, q(:,:,k),0, dzqw, adzqw, dzq, wq) |
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[138] | 186 | END DO |
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[151] | 187 | |
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[136] | 188 | END DO |
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[138] | 189 | |
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[146] | 190 | CALL trace_end("advect_tracer") |
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| 191 | |
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[186] | 192 | !!$OMP BARRIER |
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[151] | 193 | |
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[138] | 194 | END SUBROUTINE advect_tracer |
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| 195 | |
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[151] | 196 | SUBROUTINE vlz(update_mass, fac,wfluxt,mass, q, halo, dzqw, adzqw, dzq, wq) |
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[136] | 197 | ! |
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| 198 | ! Auteurs: P.Le Van, F.Hourdin, F.Forget, T. Dubos |
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| 199 | ! |
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| 200 | ! ******************************************************************** |
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| 201 | ! Update tracers using vertical mass flux only |
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| 202 | ! Van Leer scheme with minmod limiter |
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| 203 | ! wfluxt >0 for upward transport |
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| 204 | ! ******************************************************************** |
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[148] | 205 | USE trace |
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[151] | 206 | USE omp_para |
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[22] | 207 | IMPLICIT NONE |
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[136] | 208 | LOGICAL, INTENT(IN) :: update_mass |
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| 209 | REAL(rstd), INTENT(IN) :: fac, wfluxt(iim*jjm,llm+1) ! vertical mass flux |
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| 210 | REAL(rstd), INTENT(INOUT) :: mass(iim*jjm,llm) |
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| 211 | REAL(rstd), INTENT(INOUT) :: q(iim*jjm,llm) |
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[148] | 212 | INTEGER, INTENT(IN) :: halo |
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[22] | 213 | |
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[151] | 214 | ! temporary shared variable |
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| 215 | REAL(rstd),INTENT(INOUT) :: dzqw(iim*jjm,llm), & ! vertical finite difference of q |
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| 216 | adzqw(iim*jjm,llm), & ! abs(dzqw) |
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| 217 | dzq(iim*jjm,llm), & ! limited slope of q |
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| 218 | wq(iim*jjm,llm+1) ! time-integrated flux of q |
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| 219 | |
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| 220 | |
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[136] | 221 | REAL(rstd) :: dzqmax, newmass, sigw, qq, w |
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[174] | 222 | INTEGER :: i,ij,l,j,ijb,ije |
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[22] | 223 | |
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[148] | 224 | CALL trace_start("vlz") |
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[174] | 225 | |
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| 226 | ijb=((jj_begin-halo)-1)*iim+ii_begin-halo |
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| 227 | ije = ((jj_end+halo)-1)*iim+ii_end+halo |
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[148] | 228 | |
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[136] | 229 | ! finite difference of q |
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[151] | 230 | |
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| 231 | DO l=ll_beginp1,ll_end |
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[174] | 232 | !$SIMD |
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| 233 | DO ij=ijb,ije |
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| 234 | dzqw(ij,l)=q(ij,l)-q(ij,l-1) |
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| 235 | adzqw(ij,l)=abs(dzqw(ij,l)) |
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[22] | 236 | ENDDO |
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| 237 | ENDDO |
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| 238 | |
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[151] | 239 | !--> flush dzqw, adzqw |
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[186] | 240 | !!$OMP BARRIER |
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[151] | 241 | |
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[136] | 242 | ! minmod-limited slope of q |
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| 243 | ! dzq = slope*dz, i.e. the reconstructed q varies by dzq inside level l |
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[151] | 244 | |
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| 245 | DO l=ll_beginp1,ll_endm1 |
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[174] | 246 | !$SIMD |
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| 247 | DO ij=ijb,ije |
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| 248 | IF(dzqw(ij,l)*dzqw(ij,l+1).gt.0.) THEN |
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| 249 | dzq(ij,l) = 0.5*( dzqw(ij,l)+dzqw(ij,l+1) ) |
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| 250 | dzqmax = pente_max * min( adzqw(ij,l),adzqw(ij,l+1) ) |
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| 251 | dzq(ij,l) = sign( min(abs(dzq(ij,l)),dzqmax) , dzq(ij,l) ) ! NB : sign(a,b)=a*sign(b) |
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| 252 | ELSE |
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| 253 | dzq(ij,l)=0. |
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| 254 | ENDIF |
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[22] | 255 | ENDDO |
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| 256 | ENDDO |
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[17] | 257 | |
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[151] | 258 | |
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[136] | 259 | ! 0 slope in top and bottom layers |
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[151] | 260 | IF (omp_first) THEN |
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[174] | 261 | DO ij=ijb,ije |
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[151] | 262 | dzq(ij,1)=0. |
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| 263 | ENDDO |
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| 264 | ENDIF |
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| 265 | |
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| 266 | IF (omp_last) THEN |
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[174] | 267 | DO ij=ijb,ije |
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[136] | 268 | dzq(ij,llm)=0. |
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[151] | 269 | ENDDO |
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| 270 | ENDIF |
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[17] | 271 | |
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[151] | 272 | !---> flush dzq |
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[186] | 273 | !!$OMP BARRIER |
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[151] | 274 | |
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[136] | 275 | ! sigw = fraction of mass that leaves level l/l+1 |
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| 276 | ! then amount of q leaving level l/l+1 = wq = w * qq |
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[151] | 277 | DO l=ll_beginp1,ll_end |
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[174] | 278 | !$SIMD |
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| 279 | DO ij=ijb,ije |
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[151] | 280 | w = fac*wfluxt(ij,l) |
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[138] | 281 | IF(w>0.) THEN ! upward transport, upwind side is at level l |
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[151] | 282 | sigw = w/mass(ij,l-1) |
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| 283 | qq = q(ij,l-1)+0.5*(1.-sigw)*dzq(ij,l-1) ! qq = q if sigw=1 , qq = q+dzq/2 if sigw=0 |
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| 284 | ELSE ! downward transport, upwind side is at level l+1 |
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[138] | 285 | sigw = w/mass(ij,l) |
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[151] | 286 | qq = q(ij,l)-0.5*(1.+sigw)*dzq(ij,l) ! qq = q if sigw=-1 , qq = q-dzq/2 if sigw=0 |
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[22] | 287 | ENDIF |
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[151] | 288 | wq(ij,l) = w*qq |
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[22] | 289 | ENDDO |
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| 290 | END DO |
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[136] | 291 | ! wq = 0 at top and bottom |
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[151] | 292 | IF (omp_first) THEN |
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[174] | 293 | DO ij=ijb,ije |
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[151] | 294 | wq(ij,1)=0. |
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| 295 | END DO |
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| 296 | ENDIF |
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| 297 | |
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| 298 | IF (omp_last) THEN |
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[174] | 299 | DO ij=ijb,ije |
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[151] | 300 | wq(ij,llm+1)=0. |
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| 301 | END DO |
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| 302 | ENDIF |
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[17] | 303 | |
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[151] | 304 | ! --> flush wq |
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[186] | 305 | !!$OMP BARRIER |
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[151] | 306 | |
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| 307 | |
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[136] | 308 | ! update q, mass is updated only after all q's have been updated |
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[151] | 309 | DO l=ll_begin,ll_end |
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[174] | 310 | !$SIMD |
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| 311 | DO ij=ijb,ije |
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[136] | 312 | newmass = mass(ij,l) + fac*(wfluxt(ij,l)-wfluxt(ij,l+1)) |
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| 313 | q(ij,l) = ( q(ij,l)*mass(ij,l) + wq(ij,l)-wq(ij,l+1) ) / newmass |
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| 314 | IF(update_mass) mass(ij,l)=newmass |
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[22] | 315 | ENDDO |
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| 316 | END DO |
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[136] | 317 | |
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[148] | 318 | CALL trace_end("vlz") |
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| 319 | |
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[22] | 320 | END SUBROUTINE vlz |
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[17] | 321 | |
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| 322 | END MODULE advect_tracer_mod |
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