- Timestamp:
- 2016-11-04T06:54:44+01:00 (7 years ago)
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branches/2016/dev_r6409_SIMPLIF_2_usrdef/NEMOGCM/NEMO/OPA_SRC/USR/usrdef_zgr.F90
r7164 r7188 11 11 12 12 !!---------------------------------------------------------------------- 13 !! usr_def_zgr 14 !! zgr_z: reference 1D z-coordinate15 !! zgr_top_bot: ocean top and bottom level indices16 !! zgr_zco: 3D verticl coordinate in pure z-coordinate case13 !! usr_def_zgr : user defined vertical coordinate system 14 !! zgr_z : reference 1D z-coordinate 15 !! zgr_top_bot: ocean top and bottom level indices 16 !! zgr_zco : 3D verticl coordinate in pure z-coordinate case 17 17 !!--------------------------------------------------------------------- 18 USE oce ! ocean variables 19 USE dom_oce ! ocean domain 18 USE oce ! ocean variables 19 USE dom_oce ! ocean domain 20 USE depth_e3 ! depth <=> e3 20 21 ! 21 USE in_out_manager 22 USE lbclnk 23 USE lib_mpp 24 USE wrk_nemo 25 USE timing 22 USE in_out_manager ! I/O manager 23 USE lbclnk ! ocean lateral boundary conditions (or mpp link) 24 USE lib_mpp ! distributed memory computing library 25 USE wrk_nemo ! Memory allocation 26 USE timing ! Timing 26 27 27 28 IMPLICIT NONE … … 72 73 ! type of vertical coordinate 73 74 ! --------------------------- 74 ld_zco = .TRUE. ! GYRE case: z-coordinate & noocean cavities75 ld_zco = .TRUE. ! GYRE case: z-coordinate without ocean cavities 75 76 ld_zps = .FALSE. 76 77 ld_sco = .FALSE. … … 80 81 ! Build the vertical coordinate system 81 82 ! ------------------------------------ 82 CALL zgr_z ( pdept_1d, pdepw_1d, pe3t_1d , pe3w_1d )! Reference z-coordinate system83 ! 84 CALL zgr_msk_top_bot( k_top , k_bot ) 85 ! 86 ! 83 CALL zgr_z( pdept_1d, pdepw_1d, pe3t_1d , pe3w_1d ) ! Reference z-coordinate system 84 ! 85 CALL zgr_msk_top_bot( k_top , k_bot ) ! masked top and bottom ocean t-level indices 86 ! 87 ! ! z-coordinate (3D arrays) from the 1D z-coord. 87 88 CALL zgr_zco( pdept_1d, pdepw_1d, pe3t_1d, pe3w_1d, & ! in : 1D reference vertical coordinate 88 89 & pdept , pdepw , & ! out : 3D t & w-points depth … … 100 101 !! vertical scale factors. 101 102 !! 102 !! ** Method : z-coordinate system (use in all type of coordinate) 103 !! The depth of model levels is defined from an analytical 104 !! function the derivative of which gives the scale factors. 105 !! both depth and scale factors only depend on k (1d arrays). 106 !! w-level: pdepw_1d = pdep(k) 107 !! pe3w_1d(k) = dk(pdep)(k) = e3(k) 108 !! t-level: pdept_1d = pdep(k+0.5) 109 !! pe3t_1d(k) = dk(pdep)(k+0.5) = e3(k+0.5) 110 !! 111 !! Here the Madec & Imbard (1996) function is used 103 !! ** Method : 1D z-coordinate system (use in all type of coordinate) 104 !! The depth of model levels is set from dep(k), an analytical function: 105 !! w-level: depw_1d = dep(k) 106 !! t-level: dept_1d = dep(k+0.5) 107 !! The scale factors are the discrete derivative of the depth: 108 !! e3w_1d(jk) = dk[ dept_1d ] 109 !! e3t_1d(jk) = dk[ depw_1d ] 110 !! with at top and bottom : 111 !! e3w_1d( 1 ) = 2 * ( dept_1d( 1 ) - depw_1d( 1 ) ) 112 !! e3t_1d(jpk) = 2 * ( dept_1d(jpk) - depw_1d(jpk) ) 113 !! The depth are then re-computed from the sum of e3. This ensures 114 !! that depths are identical when reading domain_cfg.nc file. Indeed, 115 !! Only e3. are saved in this file, depth are compute by a call to 116 !! the e3_to_depth subroutine. 117 !! 118 !! Here the Madec & Imbard (1996) function is used. 112 119 !! 113 120 !! ** Action : - pdept_1d, pdepw_1d : depth of T- and W-point (m) … … 156 163 pdepw_1d(jk) = ( zsur + za0 * zw + za1 * zacr * LOG( COSH( (zw-zkth) / zacr ) ) ) 157 164 pdept_1d(jk) = ( zsur + za0 * zt + za1 * zacr * LOG( COSH( (zt-zkth) / zacr ) ) ) 158 pe3w_1d (jk) = za0 + za1 * TANH( (zw-zkth) / zacr )159 pe3t_1d (jk) = za0 + za1 * TANH( (zt-zkth) / zacr )160 165 END DO 161 pdepw_1d(1) = 0._wp ! force first w-level to be exactly at zero 162 163 164 !!gm This should become the reference ! 165 ! IF ( ln_isfcav ) THEN 166 ! need to be like this to compute the pressure gradient with ISF. If not, level beneath the ISF are not aligned (sum(e3t) /= depth) 167 ! define pe3t_0 and pe3w_0 as the differences between pdept and pdepw respectively 168 ! DO jk = 1, jpkm1 169 ! pe3t_1d(jk) = pdepw_1d(jk+1)-pdepw_1d(jk) 170 ! END DO 171 ! pe3t_1d(jpk) = pe3t_1d(jpk-1) ! we don't care because this level is masked in NEMO 172 ! 173 ! DO jk = 2, jpk 174 ! pe3w_1d(jk) = pdept_1d(jk) - pdept_1d(jk-1) 175 ! END DO 176 ! pe3w_1d(1 ) = 2._wp * (pdept_1d(1) - pdepw_1d(1)) 177 ! END IF 178 !!gm end 179 166 ! 167 ! ! e3t and e3w from depth 168 CALL depth_to_e3( pdept_1d, pdepw_1d, pe3t_1d, pe3w_1d ) 169 ! 170 ! ! recompute depths from SUM(e3) <== needed 171 CALL e3_to_depth( pe3t_1d, pe3w_1d, pdept_1d, pdepw_1d ) 172 ! 180 173 IF(lwp) THEN ! control print 181 174 WRITE(numout,*) … … 184 177 WRITE(numout, "(10x, i4, 4f9.2)" ) ( jk, pdept_1d(jk), pdepw_1d(jk), pe3t_1d(jk), pe3w_1d(jk), jk = 1, jpk ) 185 178 ENDIF 186 DO jk = 1, jpk ! control positivity187 IF( pe3w_1d (jk) <= 0._wp .OR. pe3t_1d (jk) <= 0._wp ) CALL ctl_stop( 'dom:zgr_z: e3w_1d or e3t_1d =< 0 ' )188 IF( pdepw_1d(jk) < 0._wp .OR. pdept_1d(jk) < 0._wp ) CALL ctl_stop( 'dom:zgr_z: gdepw_1d or gdept_1d < 0 ' )189 END DO190 179 ! 191 180 IF( nn_timing == 1 ) CALL timing_stop('zgr_z')
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