| 1 | MODULE sbcrnf |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbcrnf *** |
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| 4 | !! Ocean forcing: river runoff |
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| 5 | !!===================================================================== |
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| 6 | !! History : OPA ! 2000-11 (R. Hordoir, E. Durand) NetCDF FORMAT |
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| 7 | !! NEMO 1.0 ! 2002-09 (G. Madec) F90: Free form and module |
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| 8 | !! 3.0 ! 2006-07 (G. Madec) Surface module |
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| 9 | !! 3.2 ! 2009-04 (B. Lemaire) Introduce iom_put |
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| 10 | !! 3.3 ! 2010-10 (R. Furner, G. Madec) runoff distributed over ocean levels |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! sbc_rnf : monthly runoffs read in a NetCDF file |
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| 15 | !! sbc_rnf_init : runoffs initialisation |
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| 16 | !! rnf_mouth : set river mouth mask |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | USE dom_oce ! ocean space and time domain |
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| 19 | USE phycst ! physical constants |
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| 20 | USE sbc_oce ! surface boundary condition variables |
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| 21 | USE fldread ! read input field at current time step |
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| 22 | USE in_out_manager ! I/O manager |
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| 23 | USE iom ! I/O module |
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| 24 | USE restart ! restart |
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| 25 | USE closea ! closed seas |
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| 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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| 29 | |
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| 30 | PUBLIC sbc_rnf ! routine call in sbcmod module |
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| 31 | PUBLIC sbc_rnf_div ! routine called in sshwzv module |
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| 32 | |
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| 33 | ! !!* namsbc_rnf namelist * |
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| 34 | CHARACTER(len=100), PUBLIC :: cn_dir = './' !: Root directory for location of ssr files |
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| 35 | LOGICAL , PUBLIC :: ln_rnf_depth = .false. !: depth river runoffs attribute specified in a file |
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| 36 | LOGICAL , PUBLIC :: ln_rnf_tem = .false. !: temperature river runoffs attribute specified in a file |
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| 37 | LOGICAL , PUBLIC :: ln_rnf_sal = .false. !: salinity river runoffs attribute specified in a file |
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| 38 | LOGICAL , PUBLIC :: ln_rnf_emp = .false. !: runoffs into a file to be read or already into precipitation |
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| 39 | TYPE(FLD_N) , PUBLIC :: sn_rnf !: information about the runoff file to be read |
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| 40 | TYPE(FLD_N) , PUBLIC :: sn_cnf !: information about the runoff mouth file to be read |
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| 41 | TYPE(FLD_N) :: sn_s_rnf !: information about the salinities of runoff file to be read |
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| 42 | TYPE(FLD_N) :: sn_t_rnf !: information about the temperatures of runoff file to be read |
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| 43 | TYPE(FLD_N) :: sn_dep_rnf !: information about the depth which river inflow affects |
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| 44 | LOGICAL , PUBLIC :: ln_rnf_mouth = .false. !: specific treatment in mouths vicinity |
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| 45 | REAL(wp) , PUBLIC :: rn_hrnf = 0._wp !: runoffs, depth over which enhanced vertical mixing is used |
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| 46 | REAL(wp) , PUBLIC :: rn_avt_rnf = 0._wp !: runoffs, value of the additional vertical mixing coef. [m2/s] |
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| 47 | REAL(wp) , PUBLIC :: rn_rfact = 1._wp !: multiplicative factor for runoff |
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| 48 | |
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| 49 | INTEGER , PUBLIC :: nkrnf = 0 !: nb of levels over which Kz is increased at river mouths |
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| 50 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: rnfmsk !: river mouth mask (hori.) |
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| 51 | REAL(wp), PUBLIC, DIMENSION(jpk) :: rnfmsk_z !: river mouth mask (vert.) |
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| 52 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: h_rnf !: depth of runoff in m |
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| 53 | INTEGER, PUBLIC, DIMENSION(jpi,jpj) :: nk_rnf !: depth of runoff in model levels |
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| 54 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpts) :: rnf_tsc_b, rnf_tsc !: before and now T & S contents of runoffs [K.m/s & PSU.m/s] |
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| 55 | |
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| 56 | REAL(wp) :: r1_rau0 ! = 1 / rau0 |
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| 57 | |
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| 58 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_rnf ! structure: river runoff (file information, fields read) |
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| 59 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_s_rnf ! structure: river runoff salinity (file information, fields read) |
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| 60 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_t_rnf ! structure: river runoff temperature (file information, fields read) |
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| 61 | |
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| 62 | !! * Substitutions |
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| 63 | # include "domzgr_substitute.h90" |
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| 64 | !!---------------------------------------------------------------------- |
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| 65 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 66 | !! $Id$ |
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| 67 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 68 | !!---------------------------------------------------------------------- |
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| 69 | CONTAINS |
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| 70 | |
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| 71 | SUBROUTINE sbc_rnf( kt ) |
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| 72 | !!---------------------------------------------------------------------- |
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| 73 | !! *** ROUTINE sbc_rnf *** |
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| 74 | !! |
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| 75 | !! ** Purpose : Introduce a climatological run off forcing |
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| 76 | !! |
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| 77 | !! ** Method : Set each river mouth with a monthly climatology |
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| 78 | !! provided from different data. |
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| 79 | !! CAUTION : upward water flux, runoff forced to be < 0 |
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| 80 | !! |
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| 81 | !! ** Action : runoff updated runoff field at time-step kt |
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| 82 | !!---------------------------------------------------------------------- |
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| 83 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 84 | !! |
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| 85 | INTEGER :: ji, jj ! dummy loop indices |
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| 86 | !!---------------------------------------------------------------------- |
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| 87 | ! |
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| 88 | IF( kt == nit000 ) CALL sbc_rnf_init ! Read namelist and allocate structures |
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| 89 | |
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| 90 | ! ! ---------------------------------------- ! |
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| 91 | IF( kt /= nit000 ) THEN ! Swap of forcing fields ! |
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| 92 | ! ! ---------------------------------------- ! |
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| 93 | rnf_b (:,: ) = rnf (:,: ) ! Swap the ocean forcing fields except at nit000 |
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| 94 | rnf_tsc_b(:,:,:) = rnf_tsc(:,:,:) ! where before fields are set at the end of the routine |
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| 95 | ! |
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| 96 | ENDIF |
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| 97 | |
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| 98 | ! !-------------------! |
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| 99 | IF( .NOT. ln_rnf_emp ) THEN ! Update runoff ! |
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| 100 | ! !-------------------! |
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| 101 | ! |
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| 102 | CALL fld_read ( kt, nn_fsbc, sf_rnf ) ! Read Runoffs data and provide it at kt |
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| 103 | IF( ln_rnf_tem ) CALL fld_read ( kt, nn_fsbc, sf_t_rnf ) ! idem for runoffs temperature if required |
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| 104 | IF( ln_rnf_sal ) CALL fld_read ( kt, nn_fsbc, sf_s_rnf ) ! idem for runoffs salinity if required |
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| 105 | ! |
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| 106 | ! Runoff reduction only associated to the ORCA2_LIM configuration |
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| 107 | ! when reading the NetCDF file runoff_1m_nomask.nc |
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| 108 | IF( cp_cfg == 'orca' .AND. jp_cfg == 2 ) THEN |
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| 109 | WHERE( 40._wp < gphit(:,:) .AND. gphit(:,:) < 65._wp ) |
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| 110 | sf_rnf(1)%fnow(:,:,1) = 0.85 * sf_rnf(1)%fnow(:,:,1) |
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| 111 | END WHERE |
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| 112 | ENDIF |
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| 113 | ! |
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| 114 | IF( MOD( kt - 1, nn_fsbc ) == 0 ) THEN |
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| 115 | rnf(:,:) = rn_rfact * ( sf_rnf(1)%fnow(:,:,1) ) |
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| 116 | ! |
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| 117 | r1_rau0 = 1._wp / rau0 |
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| 118 | ! ! set temperature & salinity content of runoffs |
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| 119 | IF( ln_rnf_tem ) THEN ! use runoffs temperature data |
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| 120 | rnf_tsc(:,:,jp_tem) = ( sf_t_rnf(1)%fnow(:,:,1) ) * rnf(:,:) * r1_rau0 |
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| 121 | WHERE( sf_t_rnf(1)%fnow(:,:,1) == -999 ) ! if missing data value use SST as runoffs temperature |
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| 122 | rnf_tsc(:,:,jp_tem) = sst_m(:,:) * rnf(:,:) * r1_rau0 |
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| 123 | END WHERE |
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| 124 | ELSE ! use SST as runoffs temperature |
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| 125 | rnf_tsc(:,:,jp_tem) = sst_m(:,:) * rnf(:,:) * r1_rau0 |
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| 126 | ENDIF |
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| 127 | ! ! use runoffs salinity data |
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| 128 | IF( ln_rnf_sal ) rnf_tsc(:,:,jp_sal) = ( sf_s_rnf(1)%fnow(:,:,1) ) * rnf(:,:) * r1_rau0 |
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| 129 | ! ! else use S=0 for runoffs (done one for all in the init) |
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| 130 | ! |
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| 131 | IF( ln_rnf_tem .OR. ln_rnf_sal ) THEN ! runoffs as outflow: use ocean SST and SSS |
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| 132 | WHERE( rnf(:,:) < 0._wp ) ! example baltic model when flow is out of domain |
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| 133 | rnf_tsc(:,:,jp_tem) = sst_m(:,:) * rnf(:,:) * r1_rau0 |
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| 134 | rnf_tsc(:,:,jp_sal) = sss_m(:,:) * rnf(:,:) * r1_rau0 |
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| 135 | END WHERE |
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| 136 | ENDIF |
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| 137 | ! |
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| 138 | CALL iom_put( "runoffs", rnf ) ! output runoffs arrays |
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| 139 | ENDIF |
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| 140 | ! |
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| 141 | ENDIF |
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| 142 | ! |
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| 143 | IF( kt == nit000 ) THEN ! set the forcing field at nit000 - 1 ! |
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| 144 | ! ! ---------------------------------------- ! |
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| 145 | IF( ln_rstart .AND. & !* Restart: read in restart file |
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| 146 | & iom_varid( numror, 'rnf_b', ldstop = .FALSE. ) > 0 ) THEN |
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| 147 | IF(lwp) WRITE(numout,*) ' nit000-1 runoff forcing fields red in the restart file' |
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| 148 | CALL iom_get( numror, jpdom_autoglo, 'rnf_b', rnf_b ) ! before runoff |
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| 149 | CALL iom_get( numror, jpdom_autoglo, 'rnf_hc_b', rnf_tsc_b(:,:,jp_tem) ) ! before heat content of runoff |
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| 150 | CALL iom_get( numror, jpdom_autoglo, 'rnf_sc_b', rnf_tsc_b(:,:,jp_sal) ) ! before salinity content of runoff |
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| 151 | ELSE !* no restart: set from nit000 values |
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| 152 | IF(lwp) WRITE(numout,*) ' nit000-1 runoff forcing fields set to nit000' |
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| 153 | rnf_b (:,: ) = rnf (:,: ) |
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| 154 | rnf_tsc_b(:,:,:) = rnf_tsc(:,:,:) |
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| 155 | ENDIF |
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| 156 | ENDIF |
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| 157 | ! ! ---------------------------------------- ! |
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| 158 | IF( lrst_oce ) THEN ! Write in the ocean restart file ! |
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| 159 | ! ! ---------------------------------------- ! |
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| 160 | IF(lwp) WRITE(numout,*) |
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| 161 | IF(lwp) WRITE(numout,*) 'sbcrnf : runoff forcing fields written in ocean restart file ', & |
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| 162 | & 'at it= ', kt,' date= ', ndastp |
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| 163 | IF(lwp) WRITE(numout,*) '~~~~' |
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| 164 | CALL iom_rstput( kt, nitrst, numrow, 'rnf_b' , rnf ) |
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| 165 | CALL iom_rstput( kt, nitrst, numrow, 'rnf_hc_b', rnf_tsc(:,:,jp_tem) ) |
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| 166 | CALL iom_rstput( kt, nitrst, numrow, 'rnf_sc_b', rnf_tsc(:,:,jp_sal) ) |
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| 167 | ENDIF |
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| 168 | ! |
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| 169 | END SUBROUTINE sbc_rnf |
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| 170 | |
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| 171 | |
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| 172 | SUBROUTINE sbc_rnf_div( phdivn ) |
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| 173 | !!---------------------------------------------------------------------- |
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| 174 | !! *** ROUTINE sbc_rnf *** |
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| 175 | !! |
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| 176 | !! ** Purpose : update the horizontal divergence with the runoff inflow |
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| 177 | !! |
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| 178 | !! ** Method : |
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| 179 | !! CAUTION : rnf is positive (inflow) decreasing the |
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| 180 | !! divergence and expressed in m/s |
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| 181 | !! |
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| 182 | !! ** Action : phdivn decreased by the runoff inflow |
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| 183 | !!---------------------------------------------------------------------- |
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| 184 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: phdivn ! horizontal divergence |
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| 185 | !! |
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| 186 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 187 | REAL(wp) :: r1_rau0 ! local scalar |
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| 188 | REAL(wp) :: zfact ! local scalar |
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| 189 | !!---------------------------------------------------------------------- |
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| 190 | ! |
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| 191 | zfact = 0.5_wp |
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| 192 | ! |
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| 193 | r1_rau0 = 1._wp / rau0 |
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| 194 | IF( ln_rnf_depth ) THEN !== runoff distributed over several levels ==! |
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| 195 | IF( lk_vvl ) THEN ! variable volume case |
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| 196 | DO jj = 1, jpj ! update the depth over which runoffs are distributed |
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| 197 | DO ji = 1, jpi |
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| 198 | h_rnf(ji,jj) = 0._wp |
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| 199 | DO jk = 1, nk_rnf(ji,jj) ! recalculates h_rnf to be the depth in metres |
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| 200 | h_rnf(ji,jj) = h_rnf(ji,jj) + fse3t(ji,jj,jk) ! to the bottom of the relevant grid box |
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| 201 | END DO |
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| 202 | ! ! apply the runoff input flow |
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| 203 | DO jk = 1, nk_rnf(ji,jj) |
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| 204 | phdivn(ji,jj,jk) = phdivn(ji,jj,jk) - ( rnf(ji,jj) + rnf_b(ji,jj) ) * zfact * r1_rau0 / h_rnf(ji,jj) |
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| 205 | END DO |
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| 206 | END DO |
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| 207 | END DO |
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| 208 | ELSE ! constant volume case : just apply the runoff input flow |
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| 209 | DO jj = 1, jpj |
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| 210 | DO ji = 1, jpi |
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| 211 | DO jk = 1, nk_rnf(ji,jj) |
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| 212 | phdivn(ji,jj,jk) = phdivn(ji,jj,jk) - ( rnf(ji,jj) + rnf_b(ji,jj) ) * zfact * r1_rau0 / h_rnf(ji,jj) |
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| 213 | END DO |
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| 214 | END DO |
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| 215 | END DO |
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| 216 | ENDIF |
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| 217 | ELSE !== runoff put only at the surface ==! |
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| 218 | IF( lk_vvl ) THEN ! variable volume case |
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| 219 | h_rnf(:,:) = fse3t(:,:,1) ! recalculate h_rnf to be depth of top box |
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| 220 | ENDIF |
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| 221 | phdivn(:,:,1) = phdivn(:,:,1) - ( rnf(:,:) + rnf_b(:,:) ) * zfact * r1_rau0 / fse3t(:,:,1) |
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| 222 | ENDIF |
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| 223 | ! |
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| 224 | END SUBROUTINE sbc_rnf_div |
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| 225 | |
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| 226 | |
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| 227 | SUBROUTINE sbc_rnf_init |
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| 228 | !!---------------------------------------------------------------------- |
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| 229 | !! *** ROUTINE sbc_rnf_init *** |
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| 230 | !! |
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| 231 | !! ** Purpose : Initialisation of the runoffs if (ln_rnf=T) |
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| 232 | !! |
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| 233 | !! ** Method : - read the runoff namsbc_rnf namelist |
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| 234 | !! |
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| 235 | !! ** Action : - read parameters |
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| 236 | !!---------------------------------------------------------------------- |
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| 237 | CHARACTER(len=32) :: rn_dep_file ! runoff file name |
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| 238 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 239 | INTEGER :: ierror, inum ! temporary integer |
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| 240 | !! |
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| 241 | NAMELIST/namsbc_rnf/ cn_dir, ln_rnf_emp, ln_rnf_depth, ln_rnf_tem, ln_rnf_sal, & |
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| 242 | & sn_rnf, sn_cnf , sn_s_rnf , sn_t_rnf , sn_dep_rnf, & |
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| 243 | & ln_rnf_mouth , rn_hrnf , rn_avt_rnf, rn_rfact |
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| 244 | !!---------------------------------------------------------------------- |
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| 245 | |
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| 246 | ! ! ============ |
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| 247 | ! ! Namelist |
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| 248 | ! ! ============ |
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| 249 | ! (NB: frequency positive => hours, negative => months) |
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| 250 | ! ! file ! frequency ! variable ! time intep ! clim ! 'yearly' or ! weights ! rotation ! |
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| 251 | ! ! name ! (hours) ! name ! (T/F) ! (T/F) ! 'monthly' ! filename ! pairs ! |
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| 252 | sn_rnf = FLD_N( 'runoffs', -1 , 'sorunoff' , .TRUE. , .true. , 'yearly' , '' , '' ) |
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| 253 | sn_cnf = FLD_N( 'runoffs', 0 , 'sorunoff' , .FALSE. , .true. , 'yearly' , '' , '' ) |
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| 254 | |
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| 255 | sn_s_rnf = FLD_N( 'runoffs', 24. , 'rosaline' , .TRUE. , .true. , 'yearly' , '' , '' ) |
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| 256 | sn_t_rnf = FLD_N( 'runoffs', 24. , 'rotemper' , .TRUE. , .true. , 'yearly' , '' , '' ) |
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| 257 | sn_dep_rnf = FLD_N( 'runoffs', 0. , 'rodepth' , .FALSE. , .true. , 'yearly' , '' , '' ) |
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| 258 | ! |
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| 259 | REWIND ( numnam ) ! Read Namelist namsbc_rnf |
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| 260 | READ ( numnam, namsbc_rnf ) |
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| 261 | |
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| 262 | ! ! Control print |
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| 263 | IF(lwp) THEN |
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| 264 | WRITE(numout,*) |
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| 265 | WRITE(numout,*) 'sbc_rnf : runoff ' |
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| 266 | WRITE(numout,*) '~~~~~~~ ' |
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| 267 | WRITE(numout,*) ' Namelist namsbc_rnf' |
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| 268 | WRITE(numout,*) ' runoff in a file to be read ln_rnf_emp = ', ln_rnf_emp |
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| 269 | WRITE(numout,*) ' specific river mouths treatment ln_rnf_mouth = ', ln_rnf_mouth |
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| 270 | WRITE(numout,*) ' river mouth additional Kz rn_avt_rnf = ', rn_avt_rnf |
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| 271 | WRITE(numout,*) ' depth of river mouth additional mixing rn_hrnf = ', rn_hrnf |
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| 272 | WRITE(numout,*) ' multiplicative factor for runoff rn_rfact = ', rn_rfact |
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| 273 | ENDIF |
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| 274 | |
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| 275 | ! ! ================== |
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| 276 | ! ! Type of runoff |
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| 277 | ! ! ================== |
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| 278 | ! |
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| 279 | IF( ln_rnf_emp ) THEN !== runoffs directly provided in the precipitations ==! |
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| 280 | IF(lwp) WRITE(numout,*) |
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| 281 | IF(lwp) WRITE(numout,*) ' runoffs directly provided in the precipitations' |
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| 282 | IF( ln_rnf_depth .OR. ln_rnf_tem .OR. ln_rnf_sal ) THEN |
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| 283 | CALL ctl_warn( 'runoffs already included in precipitations, so runoff (T,S, depth) attributes will not be used' ) |
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| 284 | ln_rnf_depth = .FALSE. ; ln_rnf_tem = .FALSE. ; ln_rnf_sal = .FALSE. |
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| 285 | ENDIF |
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| 286 | ! |
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| 287 | ELSE !== runoffs read in a file : set sf_rnf structure ==! |
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| 288 | ! |
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| 289 | ALLOCATE( sf_rnf(1), STAT=ierror ) ! Create sf_rnf structure (runoff inflow) |
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| 290 | IF(lwp) WRITE(numout,*) |
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| 291 | IF(lwp) WRITE(numout,*) ' runoffs inflow read in a file' |
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| 292 | IF( ierror > 0 ) THEN |
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| 293 | CALL ctl_stop( 'sbc_rnf: unable to allocate sf_rnf structure' ) ; RETURN |
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| 294 | ENDIF |
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| 295 | ALLOCATE( sf_rnf(1)%fnow(jpi,jpj,1) ) |
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| 296 | IF( sn_rnf%ln_tint ) ALLOCATE( sf_rnf(1)%fdta(jpi,jpj,1,2) ) |
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| 297 | ! ! fill sf_rnf with the namelist (sn_rnf) and control print |
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| 298 | CALL fld_fill( sf_rnf, (/ sn_rnf /), cn_dir, 'sbc_rnf_init', 'read runoffs data', 'namsbc_rnf' ) |
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| 299 | ! |
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| 300 | IF( ln_rnf_tem ) THEN ! Create (if required) sf_t_rnf structure |
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| 301 | IF(lwp) WRITE(numout,*) |
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| 302 | IF(lwp) WRITE(numout,*) ' runoffs temperatures read in a file' |
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| 303 | ALLOCATE( sf_t_rnf(1), STAT=ierror ) |
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| 304 | IF( ierror > 0 ) THEN |
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| 305 | CALL ctl_stop( 'sbc_rnf_init: unable to allocate sf_t_rnf structure' ) ; RETURN |
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| 306 | ENDIF |
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| 307 | ALLOCATE( sf_t_rnf(1)%fnow(jpi,jpj,1) ) |
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| 308 | IF( sn_t_rnf%ln_tint ) ALLOCATE( sf_t_rnf(1)%fdta(jpi,jpj,1,2) ) |
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| 309 | CALL fld_fill (sf_t_rnf, (/ sn_t_rnf /), cn_dir, 'sbc_rnf_init', 'read runoff temperature data', 'namsbc_rnf' ) |
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| 310 | ENDIF |
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| 311 | ! |
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| 312 | IF( ln_rnf_sal ) THEN ! Create (if required) sf_s_rnf and sf_t_rnf structures |
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| 313 | IF(lwp) WRITE(numout,*) |
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| 314 | IF(lwp) WRITE(numout,*) ' runoffs salinities read in a file' |
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| 315 | ALLOCATE( sf_s_rnf(1), STAT=ierror ) |
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| 316 | IF( ierror > 0 ) THEN |
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| 317 | CALL ctl_stop( 'sbc_rnf_init: unable to allocate sf_s_rnf structure' ) ; RETURN |
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| 318 | ENDIF |
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| 319 | ALLOCATE( sf_s_rnf(1)%fnow(jpi,jpj,1) ) |
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| 320 | IF( sn_s_rnf%ln_tint ) ALLOCATE( sf_s_rnf(1)%fdta(jpi,jpj,1,2) ) |
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| 321 | CALL fld_fill (sf_s_rnf, (/ sn_s_rnf /), cn_dir, 'sbc_rnf_init', 'read runoff salinity data', 'namsbc_rnf' ) |
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| 322 | ENDIF |
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| 323 | ! |
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| 324 | IF( ln_rnf_depth ) THEN ! depth of runoffs set from a file |
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| 325 | IF(lwp) WRITE(numout,*) |
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| 326 | IF(lwp) WRITE(numout,*) ' runoffs depth read in a file' |
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| 327 | rn_dep_file = TRIM( cn_dir )//TRIM( sn_dep_rnf%clname ) |
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| 328 | CALL iom_open ( rn_dep_file, inum ) ! open file |
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| 329 | CALL iom_get ( inum, jpdom_data, sn_dep_rnf%clvar, h_rnf ) ! read the river mouth array |
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| 330 | CALL iom_close( inum ) ! close file |
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| 331 | ! |
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| 332 | nk_rnf(:,:) = 0 ! set the number of level over which river runoffs are applied |
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| 333 | DO jj = 1, jpj |
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| 334 | DO ji = 1, jpi |
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| 335 | IF( h_rnf(ji,jj) > 0._wp ) THEN |
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| 336 | jk = 2 |
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| 337 | DO WHILE ( jk /= mbkt(ji,jj) .AND. fsdept(ji,jj,jk) < h_rnf(ji,jj) ) ; jk = jk + 1 ; END DO |
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| 338 | nk_rnf(ji,jj) = jk |
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| 339 | ELSEIF( h_rnf(ji,jj) == -1 ) THEN ; nk_rnf(ji,jj) = 1 |
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| 340 | ELSEIF( h_rnf(ji,jj) == -999 ) THEN ; nk_rnf(ji,jj) = mbkt(ji,jj) |
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| 341 | ELSEIF( h_rnf(ji,jj) /= 0 ) THEN |
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| 342 | CALL ctl_stop( 'runoff depth not positive, and not -999 or -1, rnf value in file fort.999' ) |
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| 343 | WRITE(999,*) 'ji, jj, rnf(ji,jj) :', ji, jj, rnf(ji,jj) |
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| 344 | ENDIF |
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| 345 | END DO |
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| 346 | END DO |
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| 347 | DO jj = 1, jpj ! set the associated depth |
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| 348 | DO ji = 1, jpi |
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| 349 | h_rnf(ji,jj) = 0._wp |
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| 350 | DO jk = 1, nk_rnf(ji,jj) |
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| 351 | h_rnf(ji,jj) = h_rnf(ji,jj) + fse3t(ji,jj,jk) |
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| 352 | END DO |
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| 353 | END DO |
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| 354 | END DO |
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| 355 | ELSE ! runoffs applied at the surface |
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| 356 | nk_rnf(:,:) = 1 |
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| 357 | h_rnf (:,:) = fse3t(:,:,1) |
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| 358 | ENDIF |
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| 359 | ! |
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| 360 | ENDIF |
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| 361 | ! |
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| 362 | rnf_tsc(:,:,:) = 0._wp ! runoffs temperature & salinty contents initilisation |
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| 363 | ! |
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| 364 | ! ! ======================== |
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| 365 | ! ! River mouth vicinity |
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| 366 | ! ! ======================== |
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| 367 | ! |
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| 368 | IF( ln_rnf_mouth ) THEN ! Specific treatment in vicinity of river mouths : |
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| 369 | ! ! - Increase Kz in surface layers ( rn_hrnf > 0 ) |
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| 370 | ! ! - set to zero SSS damping (ln_ssr=T) |
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| 371 | ! ! - mixed upstream-centered (ln_traadv_cen2=T) |
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| 372 | ! |
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| 373 | IF ( ln_rnf_depth ) CALL ctl_warn( 'sbc_rnf_init: increased mixing turned on but effects may already', & |
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| 374 | & 'be spread through depth by ln_rnf_depth' ) |
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| 375 | ! |
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| 376 | nkrnf = 0 ! Number of level over which Kz increase |
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| 377 | IF( rn_hrnf > 0._wp ) THEN |
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| 378 | nkrnf = 2 |
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| 379 | DO WHILE( nkrnf /= jpkm1 .AND. gdepw_0(nkrnf+1) < rn_hrnf ) ; nkrnf = nkrnf + 1 ; END DO |
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| 380 | IF( ln_sco ) & |
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| 381 | CALL ctl_warn( 'sbc_rnf: number of levels over which Kz is increased is computed for zco...' ) |
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| 382 | ENDIF |
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| 383 | IF(lwp) WRITE(numout,*) |
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| 384 | IF(lwp) WRITE(numout,*) ' Specific treatment used in vicinity of river mouths :' |
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| 385 | IF(lwp) WRITE(numout,*) ' - Increase Kz in surface layers (if rn_hrnf > 0 )' |
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| 386 | IF(lwp) WRITE(numout,*) ' by ', rn_avt_rnf,' m2/s over ', nkrnf, ' w-levels' |
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| 387 | IF(lwp) WRITE(numout,*) ' - set to zero SSS damping (if ln_ssr=T)' |
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| 388 | IF(lwp) WRITE(numout,*) ' - mixed upstream-centered (if ln_traadv_cen2=T)' |
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| 389 | ! |
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| 390 | CALL rnf_mouth ! set river mouth mask |
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| 391 | ! |
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| 392 | ELSE ! No treatment at river mouths |
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| 393 | IF(lwp) WRITE(numout,*) |
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| 394 | IF(lwp) WRITE(numout,*) ' No specific treatment at river mouths' |
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| 395 | rnfmsk (:,:) = 0._wp |
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| 396 | rnfmsk_z(:) = 0._wp |
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| 397 | nkrnf = 0 |
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| 398 | ENDIF |
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| 399 | |
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| 400 | END SUBROUTINE sbc_rnf_init |
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| 401 | |
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| 402 | |
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| 403 | SUBROUTINE rnf_mouth |
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| 404 | !!---------------------------------------------------------------------- |
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| 405 | !! *** ROUTINE rnf_mouth *** |
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| 406 | !! |
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| 407 | !! ** Purpose : define the river mouths mask |
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| 408 | !! |
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| 409 | !! ** Method : read the river mouth mask (=0/1) in the river runoff |
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| 410 | !! climatological file. Defined a given vertical structure. |
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| 411 | !! CAUTION, the vertical structure is hard coded on the |
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| 412 | !! first 5 levels. |
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| 413 | !! This fields can be used to: |
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| 414 | !! - set an upstream advection scheme |
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| 415 | !! (ln_rnf_mouth=T and ln_traadv_cen2=T) |
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| 416 | !! - increase vertical on the top nn_krnf vertical levels |
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| 417 | !! at river runoff input grid point (nn_krnf>=2, see step.F90) |
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| 418 | !! - set to zero SSS restoring flux at river mouth grid points |
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| 419 | !! |
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| 420 | !! ** Action : rnfmsk set to 1 at river runoff input, 0 elsewhere |
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| 421 | !! rnfmsk_z vertical structure |
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| 422 | !!---------------------------------------------------------------------- |
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| 423 | ! |
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| 424 | INTEGER :: inum ! temporary integers |
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| 425 | CHARACTER(len=32) :: cl_rnfile ! runoff file name |
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| 426 | !!---------------------------------------------------------------------- |
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| 427 | ! |
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| 428 | IF(lwp) WRITE(numout,*) |
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| 429 | IF(lwp) WRITE(numout,*) 'rnf_mouth : river mouth mask' |
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| 430 | IF(lwp) WRITE(numout,*) '~~~~~~~~~ ' |
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| 431 | |
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| 432 | cl_rnfile = TRIM( cn_dir )//TRIM( sn_cnf%clname ) |
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| 433 | IF( .NOT. sn_cnf%ln_clim ) THEN ; WRITE(cl_rnfile, '(a,"_y",i4)' ) TRIM( cl_rnfile ), nyear ! add year |
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| 434 | IF( sn_cnf%cltype == 'monthly' ) WRITE(cl_rnfile, '(a,"m",i2)' ) TRIM( cl_rnfile ), nmonth ! add month |
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| 435 | ENDIF |
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| 436 | |
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| 437 | ! horizontal mask (read in NetCDF file) |
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| 438 | CALL iom_open ( cl_rnfile, inum ) ! open file |
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| 439 | CALL iom_get ( inum, jpdom_data, sn_cnf%clvar, rnfmsk ) ! read the river mouth array |
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| 440 | CALL iom_close( inum ) ! close file |
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| 441 | |
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| 442 | IF( nclosea == 1 ) CALL clo_rnf( rnfmsk ) ! closed sea inflow set as ruver mouth |
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| 443 | |
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| 444 | rnfmsk_z(:) = 0._wp ! vertical structure |
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| 445 | rnfmsk_z(1) = 1.0 |
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| 446 | rnfmsk_z(2) = 1.0 ! ********** |
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| 447 | rnfmsk_z(3) = 0.5 ! HARD CODED on the 5 first levels |
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| 448 | rnfmsk_z(4) = 0.25 ! ********** |
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| 449 | rnfmsk_z(5) = 0.125 |
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| 450 | ! |
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| 451 | END SUBROUTINE rnf_mouth |
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| 452 | |
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| 453 | !!====================================================================== |
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| 454 | END MODULE sbcrnf |
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