| 1 | SUBROUTINE surface_coupler |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual revisions: |
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| 5 | ! ----------------- |
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| 6 | ! |
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| 7 | ! |
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| 8 | ! Former revisions: |
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| 9 | ! ------------------ |
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| 10 | ! $Id: surface_coupler.f90 102 2007-07-27 09:09:17Z raasch $ |
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| 11 | ! |
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| 12 | ! Initial revision |
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| 13 | ! |
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| 14 | ! Description: |
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| 15 | ! ------------ |
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| 16 | ! Data exchange at the interface between coupled models |
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| 17 | !------------------------------------------------------------------------------! |
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| 18 | |
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| 19 | USE arrays_3d |
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| 20 | USE control_parameters |
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| 21 | USE cpulog |
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| 22 | USE grid_variables |
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| 23 | USE indices |
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| 24 | USE interfaces |
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| 25 | USE pegrid |
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| 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | |
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| 29 | INTEGER :: k |
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| 30 | |
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| 31 | REAL :: simulated_time_remote |
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| 32 | |
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| 33 | #if defined( __parallel ) && defined( __mpi2 ) |
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| 34 | |
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| 35 | CALL cpu_log( log_point(39), 'surface_coupler', 'start' ) |
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| 36 | |
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| 37 | ! |
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| 38 | !-- First exchange the current simulated time between the models, |
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| 39 | !-- currently just for testing |
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| 40 | CALL MPI_SEND( simulated_time, 1, MPI_REAL, myid, 11, comm_inter, ierr ) |
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| 41 | CALL MPI_RECV( simulated_time_remote, 1, MPI_REAL, myid, 11, & |
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| 42 | comm_inter, status, ierr ) |
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| 43 | WRITE ( 9, * ) simulated_time, ' remote: ', simulated_time_remote |
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| 44 | CALL local_flush( 9 ) |
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| 45 | |
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| 46 | ! |
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| 47 | !-- Exchange the interface data |
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| 48 | IF ( coupling_mode == 'atmosphere_to_ocean' ) THEN |
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| 49 | |
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| 50 | ! |
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| 51 | !-- Send heat flux at bottom surface to the ocean model |
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| 52 | WRITE ( 9, * ) '*** send shf to ocean' |
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| 53 | CALL local_flush( 9 ) |
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| 54 | CALL MPI_SEND( shf(nys-1,nxl-1), ngp_xy, MPI_REAL, myid, 12, & |
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| 55 | comm_inter, ierr ) |
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| 56 | WRITE ( 9, * ) ' ready' |
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| 57 | CALL local_flush( 9 ) |
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| 58 | |
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| 59 | ! |
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| 60 | !-- Receive temperature at the bottom surface from the ocean model |
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| 61 | WRITE ( 9, * ) '*** receive pt from ocean' |
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| 62 | CALL local_flush( 9 ) |
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| 63 | CALL MPI_RECV( pt(0,nys-1,nxl-1), 1, type_xy, myid, 13, comm_inter, & |
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| 64 | status, ierr ) |
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| 65 | WRITE ( 9, * ) ' ready' |
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| 66 | CALL local_flush( 9 ) |
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| 67 | |
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| 68 | ! |
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| 69 | !-- Send the momentum flux (u) at bottom surface to the ocean model |
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| 70 | WRITE ( 9, * ) '*** send usws to ocean' |
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| 71 | CALL local_flush( 9 ) |
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| 72 | CALL MPI_SEND( usws(nys-1,nxl-1), ngp_xy, MPI_REAL, myid, 14, & |
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| 73 | comm_inter, ierr ) |
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| 74 | WRITE ( 9, * ) ' ready' |
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| 75 | CALL local_flush( 9 ) |
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| 76 | |
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| 77 | ! |
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| 78 | !-- Send the momentum flux (v) at bottom surface to the ocean model |
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| 79 | WRITE ( 9, * ) '*** send vsws to ocean' |
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| 80 | CALL local_flush( 9 ) |
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| 81 | CALL MPI_SEND( vsws(nys-1,nxl-1), ngp_xy, MPI_REAL, myid, 15, & |
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| 82 | comm_inter, ierr ) |
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| 83 | WRITE ( 9, * ) ' ready' |
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| 84 | CALL local_flush( 9 ) |
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| 85 | |
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| 86 | ELSEIF ( coupling_mode == 'ocean_to_atmosphere' ) THEN |
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| 87 | |
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| 88 | ! |
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| 89 | !-- Receive heat flux at the sea surface (top) from the atmosphere model |
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| 90 | WRITE ( 9, * ) '*** receive tswst from atmosphere' |
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| 91 | CALL local_flush( 9 ) |
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| 92 | CALL MPI_RECV( tswst(nys-1,nxl-1), ngp_xy, MPI_REAL, myid, 12, & |
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| 93 | comm_inter, status, ierr ) |
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| 94 | WRITE ( 9, * ) ' ready' |
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| 95 | CALL local_flush( 9 ) |
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| 96 | |
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| 97 | ! |
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| 98 | !-- Adjust the kinematic heat flux with respect to ocean density |
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| 99 | !-- (constants are the specific heat capacities for air and water) |
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| 100 | tswst = tswst / rho_surface * 1005.0 / 4218.0 |
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| 101 | |
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| 102 | ! |
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| 103 | !-- Send sea surface temperature to the atmosphere model |
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| 104 | WRITE ( 9, * ) '*** send pt to atmosphere' |
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| 105 | CALL local_flush( 9 ) |
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| 106 | CALL MPI_SEND( pt(nzt,nys-1,nxl-1), 1, type_xy, myid, 13, comm_inter, & |
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| 107 | ierr ) |
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| 108 | WRITE ( 9, * ) ' ready' |
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| 109 | CALL local_flush( 9 ) |
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| 110 | |
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| 111 | ! |
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| 112 | !-- Receive momentum flux (u) at the sea surface (top) from the atmosphere |
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| 113 | !-- model |
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| 114 | WRITE ( 9, * ) '*** receive uswst from atmosphere' |
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| 115 | CALL local_flush( 9 ) |
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| 116 | CALL MPI_RECV( uswst(nys-1,nxl-1), ngp_xy, MPI_REAL, myid, 14, & |
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| 117 | comm_inter, status, ierr ) |
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| 118 | WRITE ( 9, * ) ' ready' |
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| 119 | CALL local_flush( 9 ) |
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| 120 | |
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| 121 | ! |
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| 122 | !-- Receive momentum flux (v) at the sea surface (top) from the atmosphere |
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| 123 | !-- model |
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| 124 | WRITE ( 9, * ) '*** receive vswst from atmosphere' |
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| 125 | CALL local_flush( 9 ) |
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| 126 | CALL MPI_RECV( vswst(nys-1,nxl-1), ngp_xy, MPI_REAL, myid, 15, & |
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| 127 | comm_inter, status, ierr ) |
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| 128 | WRITE ( 9, * ) ' ready' |
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| 129 | CALL local_flush( 9 ) |
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| 130 | |
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| 131 | ! |
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| 132 | !-- Adjust the momentum fluxes with respect to ocean density |
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| 133 | uswst = uswst / rho_surface |
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| 134 | vswst = vswst / rho_surface |
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| 135 | |
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| 136 | ENDIF |
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| 137 | |
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| 138 | CALL cpu_log( log_point(39), 'surface_coupler', 'stop' ) |
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| 139 | |
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| 140 | #endif |
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| 141 | |
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| 142 | END SUBROUTINE surface_coupler |
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