- Timestamp:
- 2021-10-21T11:19:25+02:00 (3 years ago)
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NEMO/branches/UKMO/r14075_India_uncoupled/src/OCE/USR/usrdef_sbc.F90
r14075 r15422 1 1 MODULE usrdef_sbc 2 2 !!====================================================================== 3 !! *** MODULE usrdef_sbc ***4 !! 5 !! === GYRE configuration ===3 !! *** MODULE usrdef_sbc *** 4 !! 5 !! === AMM7_SURGE configuration === 6 6 !! 7 7 !! User defined : surface forcing of a user configuration 8 8 !!====================================================================== 9 9 !! History : 4.0 ! 2016-03 (S. Flavoni, G. Madec) user defined interface 10 !! 4.0 ! 2017-12 (C. O'Neill) add necessary options for surge work - either no fluxes 11 !! (for tide-only run) or wind and pressure only 10 12 !!---------------------------------------------------------------------- 11 13 12 14 !!---------------------------------------------------------------------- 13 !! usrdef_sbc : user defined surface bounday conditions in GYRE case15 !! usrdef_sbc : user defined surface bounday conditions in LOCK_EXCHANGE case 14 16 !!---------------------------------------------------------------------- 15 USE oce ! ocean dynamics and tracers 16 USE dom_oce ! ocean space and time domain 17 USE sbc_oce ! Surface boundary condition: ocean fields 18 USE phycst ! physical constants 17 USE oce ! ocean dynamics and tracers 18 USE dom_oce ! ocean space and time domain 19 USE sbc_oce ! Surface boundary condition: ocean fields 20 USE sbc_ice ! Surface boundary condition: ocean fields 21 USE fldread ! read input fields 22 USE phycst ! physical constants 23 USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) 19 24 ! 20 USE in_out_manager ! I/O manager 21 USE lib_mpp ! distribued memory computing library 22 USE lbclnk ! ocean lateral boundary conditions (or mpp link) 23 USE lib_fortran ! 25 USE in_out_manager ! I/O manager 26 USE iom 27 USE lbclnk ! ocean lateral boundary conditions (or mpp link) 28 USE lib_mpp ! distribued memory computing library 29 !USE wrk_nemo ! work arrays 30 USE timing ! Timing 31 USE prtctl ! Print control 24 32 25 33 IMPLICIT NONE 26 34 PRIVATE 27 35 28 PUBLIC usrdef_sbc_oce ! routine called in sbcmod module 29 PUBLIC usrdef_sbc_ice_tau ! routine called by icestp.F90 for ice dynamics 30 PUBLIC usrdef_sbc_ice_flx ! routine called by icestp.F90 for ice thermo 36 PUBLIC usrdef_sbc_oce ! routine called in sbcmod module 37 PUBLIC usrdef_sbc_ice_tau ! routine called by sbcice_lim.F90 for ice dynamics 38 PUBLIC usrdef_sbc_ice_flx ! routine called by sbcice_lim.F90 for ice thermo 39 ! !!* Namelist namsbc_usr 40 REAL(wp) :: rn_vfac ! multiplication factor for ice/ocean velocity in the calculation of wind stress (clem) 41 REAL(wp) :: rn_charn_const 42 LOGICAL :: ln_use_sbc ! Surface fluxes on or not 31 43 32 44 !! * Substitutions … … 43 55 !! *** ROUTINE usrdef_sbc *** 44 56 !! 45 !! ** Purpose : provide at each time-step the GYREsurface boundary57 !! ** Purpose : provide at each time-step the surface boundary 46 58 !! condition, i.e. the momentum, heat and freshwater fluxes. 47 59 !! 48 !! ** Method : a nalytical seasonal cycle for GYRE configuration.60 !! ** Method : all 0 fields, for AMM7_SURGE case 49 61 !! CAUTION : never mask the surface stress field ! 50 62 !! 51 !! ** Action : - set the ocean surface boundary condition, i.e.63 !! ** Action : - if tide-only case - set to ZERO all the ocean surface boundary condition, i.e. 52 64 !! utau, vtau, taum, wndm, qns, qsr, emp, sfx 53 !! 54 !! Reference : Hazeleger, W., and S. Drijfhout, JPO, 30, 677-695, 2000. 65 !! - if tide+surge case - read in wind and air pressure !! 55 66 !!---------------------------------------------------------------------- 56 67 INTEGER, INTENT(in) :: kt ! ocean time step 57 !! 58 INTEGER :: ji, jj ! dummy loop indices 59 INTEGER :: zyear0 ! initial year 60 INTEGER :: zmonth0 ! initial month 61 INTEGER :: zday0 ! initial day 62 INTEGER :: zday_year0 ! initial day since january 1st 63 REAL(wp) :: ztau , ztau_sais ! wind intensity and of the seasonal cycle 64 REAL(wp) :: ztime ! time in hour 65 REAL(wp) :: ztimemax , ztimemin ! 21th June, and 21th decem. if date0 = 1st january 66 REAL(wp) :: ztimemax1, ztimemin1 ! 21th June, and 21th decem. if date0 = 1st january 67 REAL(wp) :: ztimemax2, ztimemin2 ! 21th June, and 21th decem. if date0 = 1st january 68 REAL(wp) :: ztaun ! intensity 69 REAL(wp) :: zemp_s, zemp_n, zemp_sais, ztstar 70 REAL(wp) :: zcos_sais1, zcos_sais2, ztrp, zconv, t_star 71 REAL(wp) :: zsumemp, zsurf 72 REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3 73 REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient 74 REAL(wp) :: ztx, zty, zmod, zcoef ! temporary variables 75 REAL(wp) :: zyydd ! number of days in one year 68 69 INTEGER :: ios ! Local integer output status for namelist read 70 ! 71 CHARACTER(len=100) :: cn_dir ! Root directory for location of flux files 72 TYPE(FLD_N) :: sn_wndi, sn_wndj ! informations about the fields to be read 73 74 NAMELIST/namsbc_usr/ ln_use_sbc, cn_dir , rn_vfac, & 75 & sn_wndi, sn_wndj, rn_charn_const 76 76 !!--------------------------------------------------------------------- 77 zyydd = REAL(nyear_len(1),wp) 77 ! 78 IF( kt == nit000 ) THEN 79 80 81 REWIND( numnam_cfg ) ! Namelist namsbc_usr in configuration namelist 82 READ ( numnam_cfg, namsbc_usr, IOSTAT = ios, ERR = 902 ) 83 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_surge in configuration namelist' ) 78 84 79 ! ---------------------------- ! 80 ! heat and freshwater fluxes ! 81 ! ---------------------------- ! 82 !same temperature, E-P as in HAZELEGER 2000 85 IF(lwm) WRITE( numond, namsbc_usr ) 86 IF(lwp) WRITE(numout,*)' usr_sbc : AMM7_SURGE tide only case: NO surface forcing' 87 IF(lwp) WRITE(numout,*)' ~~~~~~~~~~~ utau = vtau = taum = wndm = qns = qsr = emp = sfx = 0' 83 88 84 zyear0 = ndate0 / 10000 ! initial year 85 zmonth0 = ( ndate0 - zyear0 * 10000 ) / 100 ! initial month 86 zday0 = ndate0 - zyear0 * 10000 - zmonth0 * 100 ! initial day betwen 1 and 30 87 zday_year0 = ( zmonth0 - 1 ) * 30.+zday0 ! initial day betwen 1 and 360 88 89 ! current day (in hours) since january the 1st of the current year 90 ztime = REAL( kt ) * rdt / (rmmss * rhhmm) & ! total incrementation (in hours) 91 & - (nyear - 1) * rjjhh * zyydd ! minus years since beginning of experiment (in hours) 92 93 ztimemax1 = ((5.*30.)+21.)* 24. ! 21th june at 24h in hours 94 ztimemin1 = ztimemax1 + rjjhh * zyydd / 2 ! 21th december in hours 95 ztimemax2 = ((6.*30.)+21.)* 24. ! 21th july at 24h in hours 96 ztimemin2 = ztimemax2 - rjjhh * zyydd / 2 ! 21th january in hours 97 ! ! NB: rjjhh * zyydd / 4 = one seasonal cycle in hours 98 99 ! amplitudes 100 zemp_S = 0.7 ! intensity of COS in the South 101 zemp_N = 0.8 ! intensity of COS in the North 102 zemp_sais = 0.1 103 zTstar = 28.3 ! intemsity from 28.3 a -5 deg 104 105 ! 1/2 period between 21th June and 21th December and between 21th July and 21th January 106 zcos_sais1 = COS( (ztime - ztimemax1) / (ztimemin1 - ztimemax1) * rpi ) 107 zcos_sais2 = COS( (ztime - ztimemax2) / (ztimemax2 - ztimemin2) * rpi ) 108 109 ztrp= - 40.e0 ! retroaction term on heat fluxes (W/m2/K) 110 zconv = 3.16e-5 ! convertion factor: 1 m/yr => 3.16e-5 mm/s 111 DO jj = 1, jpj 112 DO ji = 1, jpi 113 ! domain from 15 deg to 50 deg between 27 and 28 degC at 15N, -3 114 ! and 13 degC at 50N 53.5 + or - 11 = 1/4 period : 115 ! 64.5 in summer, 42.5 in winter 116 t_star = zTstar * ( 1. + 1. / 50. * zcos_sais2 ) & 117 & * COS( rpi * (gphit(ji,jj) - 5.) & 118 & / ( 53.5 * ( 1 + 11 / 53.5 * zcos_sais2 ) * 2.) ) 119 ! 23.5 deg : tropics 120 qsr (ji,jj) = 230 * COS( 3.1415 * ( gphit(ji,jj) - 23.5 * zcos_sais1 ) / ( 0.9 * 180 ) ) 121 qns (ji,jj) = ztrp * ( tsb(ji,jj,1,jp_tem) - t_star ) - qsr(ji,jj) 122 IF( gphit(ji,jj) >= 14.845 .AND. 37.2 >= gphit(ji,jj) ) THEN ! zero at 37.8 deg, max at 24.6 deg 123 emp (ji,jj) = zemp_S * zconv & 124 & * SIN( rpi / 2 * (gphit(ji,jj) - 37.2) / (24.6 - 37.2) ) & 125 & * ( 1 - zemp_sais / zemp_S * zcos_sais1) 126 ELSE 127 emp (ji,jj) = - zemp_N * zconv & 128 & * SIN( rpi / 2 * (gphit(ji,jj) - 37.2) / (46.8 - 37.2) ) & 129 & * ( 1 - zemp_sais / zemp_N * zcos_sais1 ) 130 ENDIF 131 END DO 132 END DO 133 134 zsumemp = GLOB_SUM( 'usrdef_sbc', emp (:,:) ) 135 zsurf = GLOB_SUM( 'usrdef_sbc', tmask(:,:,1) ) 136 zsumemp = zsumemp / zsurf ! Default GYRE configuration 137 138 ! freshwater (mass flux) and update of qns with heat content of emp 139 emp (:,:) = emp(:,:) - zsumemp * tmask(:,:,1) ! freshwater flux (=0 in domain average) 140 sfx (:,:) = 0.0_wp ! no salt flux 141 qns (:,:) = qns(:,:) - emp(:,:) * sst_m(:,:) * rcp ! evap and precip are at SST 142 143 144 ! ---------------------------- ! 145 ! momentum fluxes ! 146 ! ---------------------------- ! 147 ! same wind as in Wico 148 !test date0 : ndate0 = 010203 149 zyear0 = ndate0 / 10000 150 zmonth0 = ( ndate0 - zyear0 * 10000 ) / 100 151 zday0 = ndate0 - zyear0 * 10000 - zmonth0 * 100 152 !Calculates nday_year, day since january 1st 153 zday_year0 = (zmonth0-1)*30.+zday0 154 155 !accumulates days of previous months of this year 156 ! day (in hours) since january the 1st 157 ztime = FLOAT( kt ) * rdt / (rmmss * rhhmm) & ! incrementation in hour 158 & - (nyear - 1) * rjjhh * zyydd ! - nber of hours the precedent years 159 ztimemax = ((5.*30.)+21.)* 24. ! 21th june in hours 160 ztimemin = ztimemax + rjjhh * zyydd / 2 ! 21th december in hours 161 ! ! NB: rjjhh * zyydd / 4 = 1 seasonal cycle in hours 162 163 ! mean intensity at 0.105 ; srqt(2) because projected with 45deg angle 164 ztau = 0.105 / SQRT( 2. ) 165 ! seasonal oscillation intensity 166 ztau_sais = 0.015 167 ztaun = ztau - ztau_sais * COS( (ztime - ztimemax) / (ztimemin - ztimemax) * rpi ) 168 DO jj = 1, jpj 169 DO ji = 1, jpi 170 ! domain from 15deg to 50deg and 1/2 period along 14deg 171 ! so 5/4 of half period with seasonal cycle 172 utau(ji,jj) = - ztaun * SIN( rpi * (gphiu(ji,jj) - 15.) / (29.-15.) ) 173 vtau(ji,jj) = ztaun * SIN( rpi * (gphiv(ji,jj) - 15.) / (29.-15.) ) 174 END DO 175 END DO 176 177 ! module of wind stress and wind speed at T-point 178 zcoef = 1. / ( zrhoa * zcdrag ) 179 DO jj = 2, jpjm1 180 DO ji = fs_2, fs_jpim1 ! vect. opt. 181 ztx = utau(ji-1,jj ) + utau(ji,jj) 182 zty = vtau(ji ,jj-1) + vtau(ji,jj) 183 zmod = 0.5 * SQRT( ztx * ztx + zty * zty ) 184 taum(ji,jj) = zmod 185 wndm(ji,jj) = SQRT( zmod * zcoef ) 186 END DO 187 END DO 188 CALL lbc_lnk_multi( 'usrdef_sbc', taum(:,:), 'T', 1. , wndm(:,:), 'T', 1. ) 189 190 ! ---------------------------------- ! 191 ! control print at first time-step ! 192 ! ---------------------------------- ! 193 IF( kt == nit000 .AND. lwp ) THEN 194 WRITE(numout,*) 195 WRITE(numout,*)'usrdef_sbc_oce : analytical surface fluxes for GYRE configuration' 196 WRITE(numout,*)'~~~~~~~~~~~ ' 197 WRITE(numout,*)' nyear = ', nyear 198 WRITE(numout,*)' nmonth = ', nmonth 199 WRITE(numout,*)' nday = ', nday 200 WRITE(numout,*)' nday_year = ', nday_year 201 WRITE(numout,*)' ztime = ', ztime 202 WRITE(numout,*)' ztimemax = ', ztimemax 203 WRITE(numout,*)' ztimemin = ', ztimemin 204 WRITE(numout,*)' ztimemax1 = ', ztimemax1 205 WRITE(numout,*)' ztimemin1 = ', ztimemin1 206 WRITE(numout,*)' ztimemax2 = ', ztimemax2 207 WRITE(numout,*)' ztimemin2 = ', ztimemin2 208 WRITE(numout,*)' zyear0 = ', zyear0 209 WRITE(numout,*)' zmonth0 = ', zmonth0 210 WRITE(numout,*)' zday0 = ', zday0 211 WRITE(numout,*)' zday_year0 = ', zday_year0 212 WRITE(numout,*)' zyydd = ', zyydd 213 WRITE(numout,*)' zemp_S = ', zemp_S 214 WRITE(numout,*)' zemp_N = ', zemp_N 215 WRITE(numout,*)' zemp_sais = ', zemp_sais 216 WRITE(numout,*)' zTstar = ', zTstar 217 WRITE(numout,*)' zsumemp = ', zsumemp 218 WRITE(numout,*)' zsurf = ', zsurf 219 WRITE(numout,*)' ztrp = ', ztrp 220 WRITE(numout,*)' zconv = ', zconv 221 WRITE(numout,*)' ndastp = ', ndastp 222 WRITE(numout,*)' adatrj = ', adatrj 89 utau(:,:) = 0._wp 90 vtau(:,:) = 0._wp 91 taum(:,:) = 0._wp 92 wndm(:,:) = 0._wp 93 ! 94 emp (:,:) = 0._wp 95 sfx (:,:) = 0._wp 96 qns (:,:) = 0._wp 97 qsr (:,:) = 0._wp 98 ! 223 99 ENDIF 224 100 ! … … 231 107 232 108 233 SUBROUTINE usrdef_sbc_ice_flx( kt , phs, phi)109 SUBROUTINE usrdef_sbc_ice_flx( kt ) 234 110 INTEGER, INTENT(in) :: kt ! ocean time step 235 REAL(wp), DIMENSION(:,:,:), INTENT(in) :: phs ! snow thickness236 REAL(wp), DIMENSION(:,:,:), INTENT(in) :: phi ! ice thickness237 111 END SUBROUTINE usrdef_sbc_ice_flx 238 112
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