- Timestamp:
- 2016-05-25T03:50:59+02:00 (8 years ago)
- File:
-
- 1 edited
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branches/UKMO/CO6_KD490/NEMOGCM/NEMO/OPA_SRC/SBC/sbcflx.F90
r6331 r6610 28 28 PUBLIC sbc_flx ! routine called by step.F90 29 29 30 INTEGER , PARAMETER :: jpfld = 5! maximum number of files to read30 INTEGER , PARAMETER :: jpfld = 6 ! maximum number of files to read 31 31 INTEGER , PARAMETER :: jp_utau = 1 ! index of wind stress (i-component) file 32 32 INTEGER , PARAMETER :: jp_vtau = 2 ! index of wind stress (j-component) file … … 34 34 INTEGER , PARAMETER :: jp_qsr = 4 ! index of solar heat file 35 35 INTEGER , PARAMETER :: jp_emp = 5 ! index of evaporation-precipation file 36 INTEGER , PARAMETER :: jp_press = 6 ! index of pressure for UKMO shelf fluxes 36 37 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf ! structure of input fields (file informations, fields read) 38 LOGICAL , PUBLIC :: ln_shelf_flx = .FALSE. ! UKMO SHELF specific flux flag 39 INTEGER :: jpfld_local ! maximum number of files to read (locally modified depending on ln_shelf_flx) 37 40 38 41 !! * Substitutions … … 82 85 REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient 83 86 REAL(wp) :: ztx, zty, zmod, zcoef ! temporary variables 87 REAL :: cs ! UKMO SHELF: Friction co-efficient at surface 88 REAL :: totwindspd ! UKMO SHELF: Magnitude of wind speed vector 89 90 REAL(wp) :: rhoa = 1.22 ! Air density kg/m3 91 REAL(wp) :: cdrag = 1.5e-3 ! drag coefficient 84 92 !! 85 93 CHARACTER(len=100) :: cn_dir ! Root directory for location of flx files 86 94 TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist information structures 87 TYPE(FLD_N) :: sn_utau, sn_vtau, sn_qtot, sn_qsr, sn_emp ! informations about the fields to be read 88 NAMELIST/namsbc_flx/ cn_dir, sn_utau, sn_vtau, sn_qtot, sn_qsr, sn_emp 95 TYPE(FLD_N) :: sn_utau, sn_vtau, sn_qtot, sn_qsr, sn_emp, sn_press ! informations about the fields to be read 96 LOGICAL :: ln_foam_flx = .FALSE. ! UKMO FOAM specific flux flag 97 NAMELIST/namsbc_flx/ cn_dir, sn_utau, sn_vtau, sn_qtot, sn_qsr, sn_emp, & 98 & ln_foam_flx, sn_press, ln_shelf_flx 89 99 !!--------------------------------------------------------------------- 90 100 ! … … 109 119 slf_i(jp_emp ) = sn_emp 110 120 ! 111 ALLOCATE( sf(jpfld), STAT=ierror ) ! set sf structure 121 ALLOCATE( sf(jpfld), STAT=ierror ) ! set sf structure 122 IF( ln_shelf_flx ) slf_i(jp_press) = sn_press 123 124 ! define local jpfld depending on shelf_flx logical 125 IF( ln_shelf_flx ) THEN 126 jpfld_local = jpfld 127 ELSE 128 jpfld_local = jpfld-1 129 ENDIF 130 ! 112 131 IF( ierror > 0 ) THEN 113 132 CALL ctl_stop( 'sbc_flx: unable to allocate sf structure' ) ; RETURN 114 133 ENDIF 115 DO ji= 1, jpfld 134 DO ji= 1, jpfld_local 116 135 ALLOCATE( sf(ji)%fnow(jpi,jpj,1) ) 117 136 IF( slf_i(ji)%ln_tint ) ALLOCATE( sf(ji)%fdta(jpi,jpj,1,2) ) … … 132 151 ENDIF 133 152 !CDIR COLLAPSE 153 !!UKMO SHELF effect of atmospheric pressure on SSH 154 ! If using ln_apr_dyn, this is done there so don't repeat here. 155 IF( ln_shelf_flx .AND. .NOT. ln_apr_dyn) THEN 156 DO jj = 1, jpjm1 157 DO ji = 1, jpim1 158 apgu(ji,jj) = (-1.0/rau0)*(sf(jp_press)%fnow(ji+1,jj,1)-sf(jp_press)%fnow(ji,jj,1))/e1u(ji,jj) 159 apgv(ji,jj) = (-1.0/rau0)*(sf(jp_press)%fnow(ji,jj+1,1)-sf(jp_press)%fnow(ji,jj,1))/e2v(ji,jj) 160 END DO 161 END DO 162 ENDIF ! ln_shelf_flx 163 134 164 DO jj = 1, jpj ! set the ocean fluxes from read fields 135 165 DO ji = 1, jpi 136 utau(ji,jj) = sf(jp_utau)%fnow(ji,jj,1) 137 vtau(ji,jj) = sf(jp_vtau)%fnow(ji,jj,1) 138 qns (ji,jj) = sf(jp_qtot)%fnow(ji,jj,1) - sf(jp_qsr)%fnow(ji,jj,1) 139 emp (ji,jj) = sf(jp_emp )%fnow(ji,jj,1) 166 IF( ln_shelf_flx ) THEN 167 !! UKMO SHELF - need atmospheric pressure to calculate Haney forcing 168 pressnow(ji,jj) = sf(jp_press)%fnow(ji,jj,1) 169 !! UKMO SHELF flux files contain wind speed not wind stress 170 totwindspd = sqrt((sf(jp_utau)%fnow(ji,jj,1))**2.0 + (sf(jp_vtau)%fnow(ji,jj,1))**2.0) 171 cs = 0.63 + (0.066 * totwindspd) 172 utau(ji,jj) = cs * (rhoa/rau0) * sf(jp_utau)%fnow(ji,jj,1) * totwindspd 173 vtau(ji,jj) = cs * (rhoa/rau0) * sf(jp_vtau)%fnow(ji,jj,1) * totwindspd 174 ELSE 175 utau(ji,jj) = sf(jp_utau)%fnow(ji,jj,1) 176 vtau(ji,jj) = sf(jp_vtau)%fnow(ji,jj,1) 177 ENDIF 178 qsr (ji,jj) = sf(jp_qsr )%fnow(ji,jj,1) 179 IF( ln_foam_flx .OR. ln_shelf_flx ) THEN 180 !! UKMO FOAM flux files contain non-solar heat flux (qns) rather than total heat flux (qtot) 181 qns (ji,jj) = sf(jp_qtot)%fnow(ji,jj,1) 182 !! UKMO FOAM flux files contain the net DOWNWARD freshwater flux P-E rather then E-P 183 emp (ji,jj) = -1. * sf(jp_emp )%fnow(ji,jj,1) 184 ELSE 185 qns (ji,jj) = sf(jp_qtot)%fnow(ji,jj,1) - sf(jp_qsr)%fnow(ji,jj,1) 186 emp (ji,jj) = sf(jp_emp )%fnow(ji,jj,1) 187 ENDIF 140 188 END DO 141 189 END DO … … 143 191 qns(:,:) = qns(:,:) - emp(:,:) * sst_m(:,:) * rcp ! mass flux is at SST 144 192 ! 193 194 !! UKMO FOAM wind fluxes need lbc_lnk calls owing to a bug in interp.exe 195 IF( ln_foam_flx ) THEN 196 CALL lbc_lnk( utau(:,:), 'U', -1. ) 197 CALL lbc_lnk( vtau(:,:), 'V', -1. ) 198 ENDIF 199 145 200 ! ! module of wind stress and wind speed at T-point 146 201 zcoef = 1. / ( zrhoa * zcdrag ) … … 162 217 WRITE(numout,*) 163 218 WRITE(numout,*) ' read daily momentum, heat and freshwater fluxes OK' 164 DO jf = 1, jpfld 219 DO jf = 1, jpfld_local 165 220 IF( jf == jp_utau .OR. jf == jp_vtau ) zfact = 1. 166 221 IF( jf == jp_qtot .OR. jf == jp_qsr ) zfact = 0.1
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