[3] | 1 | MODULE restart |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE restart *** |
---|
| 4 | !! Ocean restart : write the ocean restart file |
---|
[508] | 5 | !!====================================================================== |
---|
[2528] | 6 | !! History : OPA ! 1999-11 (M. Imbard) Original code |
---|
| 7 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form |
---|
| 8 | !! 2.0 ! 2006-07 (S. Masson) use IOM for restart |
---|
| 9 | !! 3.3 ! 2010-04 (M. Leclair, G. Madec) modified LF-RA |
---|
| 10 | !! - - ! 2010-10 (C. Ethe, G. Madec) TRC-TRA merge (T-S in 4D) |
---|
[5836] | 11 | !! 3.7 ! 2014-01 (G. Madec) suppression of curl and hdiv from the restart |
---|
| 12 | !! - ! 2014-12 (G. Madec) remove KPP scheme |
---|
[508] | 13 | !!---------------------------------------------------------------------- |
---|
[3] | 14 | |
---|
| 15 | !!---------------------------------------------------------------------- |
---|
[508] | 16 | !! rst_opn : open the ocean restart file |
---|
| 17 | !! rst_write : write the ocean restart file |
---|
| 18 | !! rst_read : read the ocean restart file |
---|
[3] | 19 | !!---------------------------------------------------------------------- |
---|
[2528] | 20 | USE oce ! ocean dynamics and tracers |
---|
[3] | 21 | USE dom_oce ! ocean space and time domain |
---|
[5836] | 22 | USE sbc_ice ! only lk_lim3 |
---|
[3] | 23 | USE phycst ! physical constants |
---|
[5836] | 24 | USE eosbn2 ! equation of state (eos bn2 routine) |
---|
| 25 | USE trdmxl_oce ! ocean active mixed layer tracers trends variables |
---|
| 26 | ! |
---|
[508] | 27 | USE in_out_manager ! I/O manager |
---|
| 28 | USE iom ! I/O module |
---|
[6140] | 29 | USE diurnal_bulk |
---|
[8630] | 30 | USE iom_def, ONLY : lwxios |
---|
| 31 | |
---|
[3] | 32 | IMPLICIT NONE |
---|
| 33 | PRIVATE |
---|
| 34 | |
---|
[4292] | 35 | PUBLIC rst_opn ! routine called by step module |
---|
| 36 | PUBLIC rst_write ! routine called by step module |
---|
| 37 | PUBLIC rst_read ! routine called by istate module |
---|
| 38 | PUBLIC rst_read_open ! routine called in rst_read and (possibly) in dom_vvl_init |
---|
[3] | 39 | |
---|
[508] | 40 | !! * Substitutions |
---|
| 41 | # include "vectopt_loop_substitute.h90" |
---|
[3] | 42 | !!---------------------------------------------------------------------- |
---|
[2528] | 43 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
---|
[888] | 44 | !! $Id$ |
---|
[2528] | 45 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
---|
[359] | 46 | !!---------------------------------------------------------------------- |
---|
[3] | 47 | CONTAINS |
---|
| 48 | |
---|
[508] | 49 | SUBROUTINE rst_opn( kt ) |
---|
| 50 | !!--------------------------------------------------------------------- |
---|
| 51 | !! *** ROUTINE rst_opn *** |
---|
| 52 | !! |
---|
| 53 | !! ** Purpose : + initialization (should be read in the namelist) of nitrst |
---|
| 54 | !! + open the restart when we are one time step before nitrst |
---|
| 55 | !! - restart header is defined when kt = nitrst-1 |
---|
| 56 | !! - restart data are written when kt = nitrst |
---|
| 57 | !! + define lrst_oce to .TRUE. when we need to define or write the restart |
---|
| 58 | !!---------------------------------------------------------------------- |
---|
| 59 | INTEGER, INTENT(in) :: kt ! ocean time-step |
---|
| 60 | !! |
---|
| 61 | CHARACTER(LEN=20) :: clkt ! ocean time-step deine as a character |
---|
[5341] | 62 | CHARACTER(LEN=50) :: clname ! ocean output restart file name |
---|
| 63 | CHARACTER(lc) :: clpath ! full path to ocean output restart file |
---|
[8630] | 64 | CHARACTER(LEN=52) :: dlname ! ocean output restart file name including prefix for AGRIF |
---|
[508] | 65 | !!---------------------------------------------------------------------- |
---|
| 66 | ! |
---|
[783] | 67 | IF( kt == nit000 ) THEN ! default definitions |
---|
| 68 | lrst_oce = .FALSE. |
---|
[5341] | 69 | IF( ln_rst_list ) THEN |
---|
| 70 | nrst_lst = 1 |
---|
| 71 | nitrst = nstocklist( nrst_lst ) |
---|
| 72 | ELSE |
---|
| 73 | nitrst = nitend |
---|
| 74 | ENDIF |
---|
[508] | 75 | ENDIF |
---|
[5341] | 76 | |
---|
| 77 | ! frequency-based restart dumping (nn_stock) |
---|
| 78 | IF( .NOT. ln_rst_list .AND. MOD( kt - 1, nstock ) == 0 ) THEN |
---|
[783] | 79 | ! we use kt - 1 and not kt - nit000 to keep the same periodicity from the beginning of the experiment |
---|
| 80 | nitrst = kt + nstock - 1 ! define the next value of nitrst for restart writing |
---|
| 81 | IF( nitrst > nitend ) nitrst = nitend ! make sure we write a restart at the end of the run |
---|
| 82 | ENDIF |
---|
| 83 | ! to get better performances with NetCDF format: |
---|
| 84 | ! we open and define the ocean restart file one time step before writing the data (-> at nitrst - 1) |
---|
| 85 | ! except if we write ocean restart files every time step or if an ocean restart file was writen at nitend - 1 |
---|
| 86 | IF( kt == nitrst - 1 .OR. nstock == 1 .OR. ( kt == nitend .AND. .NOT. lrst_oce ) ) THEN |
---|
[5341] | 87 | IF( nitrst <= nitend .AND. nitrst > 0 ) THEN |
---|
| 88 | ! beware of the format used to write kt (default is i8.8, that should be large enough...) |
---|
| 89 | IF( nitrst > 999999999 ) THEN ; WRITE(clkt, * ) nitrst |
---|
| 90 | ELSE ; WRITE(clkt, '(i8.8)') nitrst |
---|
[611] | 91 | ENDIF |
---|
[5341] | 92 | ! create the file |
---|
| 93 | clname = TRIM(cexper)//"_"//TRIM(ADJUSTL(clkt))//"_"//TRIM(cn_ocerst_out) |
---|
| 94 | clpath = TRIM(cn_ocerst_outdir) |
---|
| 95 | IF( clpath(LEN_TRIM(clpath):) /= '/' ) clpath = TRIM(clpath) // '/' |
---|
| 96 | IF(lwp) THEN |
---|
| 97 | WRITE(numout,*) |
---|
[8630] | 98 | IF(.NOT.lwxios) THEN |
---|
| 99 | SELECT CASE ( jprstlib ) |
---|
| 100 | CASE DEFAULT ; WRITE(numout,*) & |
---|
| 101 | ' open ocean restart NetCDF file: ',TRIM(clpath)//TRIM(clname) |
---|
| 102 | END SELECT |
---|
| 103 | IF ( snc4set%luse ) WRITE(numout,*) ' opened for NetCDF4 chunking and compression' |
---|
| 104 | IF( kt == nitrst - 1 ) THEN ; WRITE(numout,*) ' kt = nitrst - 1 = ', kt |
---|
| 105 | ELSE ; WRITE(numout,*) ' kt = ' , kt |
---|
| 106 | ENDIF |
---|
[5341] | 107 | ENDIF |
---|
| 108 | ENDIF |
---|
| 109 | ! |
---|
[8630] | 110 | IF(.NOT.lwxios) THEN |
---|
| 111 | CALL iom_open( TRIM(clpath)//TRIM(clname), numrow, ldwrt = .TRUE., kiolib = jprstlib ) |
---|
| 112 | ELSE |
---|
| 113 | wxios_context = "rstw_"//TRIM(ADJUSTL(clkt)) |
---|
| 114 | IF( TRIM(Agrif_CFixed()) == '0' ) THEN |
---|
| 115 | dlname = clname |
---|
| 116 | ELSE |
---|
| 117 | dlname = TRIM(Agrif_CFixed())//"_"//clname |
---|
| 118 | ENDIF |
---|
[8644] | 119 | CALL iom_init( wxios_context, TRIM(clpath)//TRIM(dlname)) |
---|
[8630] | 120 | CALL xios_update_calendar(nitrst) |
---|
| 121 | CALL iom_swap( cxios_context ) |
---|
| 122 | ENDIF |
---|
[5341] | 123 | lrst_oce = .TRUE. |
---|
[611] | 124 | ENDIF |
---|
[508] | 125 | ENDIF |
---|
| 126 | ! |
---|
| 127 | END SUBROUTINE rst_opn |
---|
| 128 | |
---|
| 129 | |
---|
[3] | 130 | SUBROUTINE rst_write( kt ) |
---|
| 131 | !!--------------------------------------------------------------------- |
---|
| 132 | !! *** ROUTINE rstwrite *** |
---|
| 133 | !! |
---|
[632] | 134 | !! ** Purpose : Write restart fields in the format corresponding to jprstlib |
---|
[3] | 135 | !! |
---|
[508] | 136 | !! ** Method : Write in numrow when kt == nitrst in NetCDF |
---|
[2528] | 137 | !! file, save fields which are necessary for restart |
---|
[3] | 138 | !!---------------------------------------------------------------------- |
---|
[508] | 139 | INTEGER, INTENT(in) :: kt ! ocean time-step |
---|
[3] | 140 | !!---------------------------------------------------------------------- |
---|
[8630] | 141 | IF(lwxios) CALL iom_swap( wxios_context ) |
---|
| 142 | CALL iom_rstput( kt, nitrst, numrow, 'rdt' , rdt , lxios = lwxios) ! dynamics time step |
---|
[3] | 143 | |
---|
[6140] | 144 | IF ( .NOT. ln_diurnal_only ) THEN |
---|
[8644] | 145 | CALL iom_rstput( kt, nitrst, numrow, 'ub' , ub, lxios = lwxios ) ! before fields |
---|
| 146 | CALL iom_rstput( kt, nitrst, numrow, 'vb' , vb, lxios = lwxios ) |
---|
| 147 | CALL iom_rstput( kt, nitrst, numrow, 'tb' , tsb(:,:,:,jp_tem), lxios = lwxios ) |
---|
| 148 | CALL iom_rstput( kt, nitrst, numrow, 'sb' , tsb(:,:,:,jp_sal), lxios = lwxios ) |
---|
| 149 | CALL iom_rstput( kt, nitrst, numrow, 'sshb' , sshb, lxios = lwxios ) |
---|
[4990] | 150 | ! |
---|
[8630] | 151 | CALL iom_rstput( kt, nitrst, numrow, 'un' , un, lxios = lwxios ) ! now fields |
---|
| 152 | CALL iom_rstput( kt, nitrst, numrow, 'vn' , vn, lxios = lwxios ) |
---|
| 153 | CALL iom_rstput( kt, nitrst, numrow, 'tn' , tsn(:,:,:,jp_tem), lxios = lwxios ) |
---|
| 154 | CALL iom_rstput( kt, nitrst, numrow, 'sn' , tsn(:,:,:,jp_sal), lxios = lwxios ) |
---|
| 155 | CALL iom_rstput( kt, nitrst, numrow, 'sshn' , sshn, lxios = lwxios ) |
---|
| 156 | CALL iom_rstput( kt, nitrst, numrow, 'rhop' , rhop, lxios = lwxios ) |
---|
[6140] | 157 | ! extra variable needed for the ice sheet coupling |
---|
| 158 | IF ( ln_iscpl ) THEN |
---|
[8644] | 159 | CALL iom_rstput( kt, nitrst, numrow, 'tmask' , tmask, lxios = lwxios ) ! need to extrapolate T/S |
---|
| 160 | CALL iom_rstput( kt, nitrst, numrow, 'umask' , umask, lxios = lwxios ) ! need to correct barotropic velocity |
---|
| 161 | CALL iom_rstput( kt, nitrst, numrow, 'vmask' , vmask, lxios = lwxios ) ! need to correct barotropic velocity |
---|
| 162 | CALL iom_rstput( kt, nitrst, numrow, 'smask' , ssmask, lxios = lwxios) ! need to correct barotropic velocity |
---|
| 163 | CALL iom_rstput( kt, nitrst, numrow, 'e3t_n', e3t_n(:,:,:), lxios = lwxios ) ! need to compute temperature correction |
---|
| 164 | CALL iom_rstput( kt, nitrst, numrow, 'e3u_n', e3u_n(:,:,:), lxios = lwxios ) ! need to compute bt conservation |
---|
| 165 | CALL iom_rstput( kt, nitrst, numrow, 'e3v_n', e3v_n(:,:,:), lxios = lwxios ) ! need to compute bt conservation |
---|
| 166 | CALL iom_rstput( kt, nitrst, numrow, 'gdepw_n', gdepw_n(:,:,:), lxios = lwxios ) ! need to compute extrapolation if vvl |
---|
[6140] | 167 | END IF |
---|
| 168 | ENDIF |
---|
| 169 | |
---|
[8644] | 170 | IF (ln_diurnal) CALL iom_rstput( kt, nitrst, numrow, 'Dsst', x_dsst, lxios = lwxios ) |
---|
| 171 | IF(lwxios) CALL iom_swap( cxios_context ) |
---|
[508] | 172 | IF( kt == nitrst ) THEN |
---|
[8630] | 173 | IF(.NOT.lwxios) THEN |
---|
| 174 | CALL iom_close( numrow ) ! close the restart file (only at last time step) |
---|
| 175 | ELSE |
---|
| 176 | CALL iom_context_finalize( wxios_context ) |
---|
| 177 | ENDIF |
---|
[4990] | 178 | !!gm IF( .NOT. lk_trdmld ) lrst_oce = .FALSE. |
---|
| 179 | !!gm not sure what to do here ===>>> ask to Sebastian |
---|
| 180 | lrst_oce = .FALSE. |
---|
[5341] | 181 | IF( ln_rst_list ) THEN |
---|
| 182 | nrst_lst = MIN(nrst_lst + 1, SIZE(nstocklist,1)) |
---|
| 183 | nitrst = nstocklist( nrst_lst ) |
---|
| 184 | ENDIF |
---|
[3] | 185 | ENDIF |
---|
[508] | 186 | ! |
---|
[3] | 187 | END SUBROUTINE rst_write |
---|
| 188 | |
---|
[4990] | 189 | |
---|
[4292] | 190 | SUBROUTINE rst_read_open |
---|
| 191 | !!---------------------------------------------------------------------- |
---|
| 192 | !! *** ROUTINE rst_read_open *** |
---|
| 193 | !! |
---|
| 194 | !! ** Purpose : Open read files for restart (format fixed by jprstlib ) |
---|
| 195 | !! |
---|
| 196 | !! ** Method : Use a non-zero, positive value of numror to assess whether or not |
---|
| 197 | !! the file has already been opened |
---|
| 198 | !!---------------------------------------------------------------------- |
---|
[5341] | 199 | INTEGER :: jlibalt = jprstlib |
---|
| 200 | LOGICAL :: llok |
---|
| 201 | CHARACTER(lc) :: clpath ! full path to ocean output restart file |
---|
[4292] | 202 | !!---------------------------------------------------------------------- |
---|
[4990] | 203 | ! |
---|
| 204 | IF( numror <= 0 ) THEN |
---|
[4292] | 205 | IF(lwp) THEN ! Contol prints |
---|
| 206 | WRITE(numout,*) |
---|
| 207 | SELECT CASE ( jprstlib ) |
---|
| 208 | CASE ( jpnf90 ) ; WRITE(numout,*) 'rst_read : read oce NetCDF restart file' |
---|
| 209 | END SELECT |
---|
| 210 | IF ( snc4set%luse ) WRITE(numout,*) 'rst_read : configured with NetCDF4 support' |
---|
| 211 | WRITE(numout,*) '~~~~~~~~' |
---|
| 212 | ENDIF |
---|
| 213 | |
---|
[5341] | 214 | clpath = TRIM(cn_ocerst_indir) |
---|
| 215 | IF( clpath(LEN_TRIM(clpath):) /= '/' ) clpath = TRIM(clpath) // '/' |
---|
| 216 | CALL iom_open( TRIM(clpath)//cn_ocerst_in, numror, kiolib = jlibalt ) |
---|
[4292] | 217 | ENDIF |
---|
| 218 | END SUBROUTINE rst_read_open |
---|
| 219 | |
---|
[5836] | 220 | |
---|
[3] | 221 | SUBROUTINE rst_read |
---|
| 222 | !!---------------------------------------------------------------------- |
---|
| 223 | !! *** ROUTINE rst_read *** |
---|
| 224 | !! |
---|
[632] | 225 | !! ** Purpose : Read files for restart (format fixed by jprstlib ) |
---|
[3] | 226 | !! |
---|
[1531] | 227 | !! ** Method : Read in restart.nc file fields which are necessary for restart |
---|
[3] | 228 | !!---------------------------------------------------------------------- |
---|
[6140] | 229 | REAL(wp) :: zrdt |
---|
[4292] | 230 | INTEGER :: jk |
---|
[3] | 231 | !!---------------------------------------------------------------------- |
---|
| 232 | |
---|
[4292] | 233 | CALL rst_read_open ! open restart for reading (if not already opened) |
---|
[3] | 234 | |
---|
[544] | 235 | ! Check dynamics and tracer time-step consistency and force Euler restart if changed |
---|
[746] | 236 | IF( iom_varid( numror, 'rdt', ldstop = .FALSE. ) > 0 ) THEN |
---|
[544] | 237 | CALL iom_get( numror, 'rdt', zrdt ) |
---|
| 238 | IF( zrdt /= rdt ) neuler = 0 |
---|
| 239 | ENDIF |
---|
[6140] | 240 | |
---|
| 241 | ! Diurnal DSST |
---|
| 242 | IF( ln_diurnal ) CALL iom_get( numror, jpdom_autoglo, 'Dsst' , x_dsst ) |
---|
| 243 | IF ( ln_diurnal_only ) THEN |
---|
| 244 | IF(lwp) WRITE( numout, * ) & |
---|
| 245 | & "rst_read:- ln_diurnal_only set, setting rhop=rau0" |
---|
| 246 | rhop = rau0 |
---|
| 247 | CALL iom_get( numror, jpdom_autoglo, 'tn' , tsn(:,:,1,jp_tem) ) |
---|
| 248 | RETURN |
---|
| 249 | ENDIF |
---|
| 250 | |
---|
[3680] | 251 | IF( iom_varid( numror, 'ub', ldstop = .FALSE. ) > 0 ) THEN |
---|
| 252 | CALL iom_get( numror, jpdom_autoglo, 'ub' , ub ) ! before fields |
---|
| 253 | CALL iom_get( numror, jpdom_autoglo, 'vb' , vb ) |
---|
| 254 | CALL iom_get( numror, jpdom_autoglo, 'tb' , tsb(:,:,:,jp_tem) ) |
---|
| 255 | CALL iom_get( numror, jpdom_autoglo, 'sb' , tsb(:,:,:,jp_sal) ) |
---|
| 256 | CALL iom_get( numror, jpdom_autoglo, 'sshb' , sshb ) |
---|
| 257 | ELSE |
---|
| 258 | neuler = 0 |
---|
| 259 | ENDIF |
---|
| 260 | ! |
---|
| 261 | CALL iom_get( numror, jpdom_autoglo, 'un' , un ) ! now fields |
---|
| 262 | CALL iom_get( numror, jpdom_autoglo, 'vn' , vn ) |
---|
| 263 | CALL iom_get( numror, jpdom_autoglo, 'tn' , tsn(:,:,:,jp_tem) ) |
---|
| 264 | CALL iom_get( numror, jpdom_autoglo, 'sn' , tsn(:,:,:,jp_sal) ) |
---|
| 265 | CALL iom_get( numror, jpdom_autoglo, 'sshn' , sshn ) |
---|
| 266 | IF( iom_varid( numror, 'rhop', ldstop = .FALSE. ) > 0 ) THEN |
---|
| 267 | CALL iom_get( numror, jpdom_autoglo, 'rhop' , rhop ) ! now potential density |
---|
| 268 | ELSE |
---|
[6140] | 269 | CALL eos( tsn, rhd, rhop, gdept_n(:,:,:) ) |
---|
[3680] | 270 | ENDIF |
---|
[2528] | 271 | ! |
---|
[508] | 272 | IF( neuler == 0 ) THEN ! Euler restart (neuler=0) |
---|
[3294] | 273 | tsb (:,:,:,:) = tsn (:,:,:,:) ! all before fields set to now values |
---|
| 274 | ub (:,:,:) = un (:,:,:) |
---|
| 275 | vb (:,:,:) = vn (:,:,:) |
---|
| 276 | sshb (:,:) = sshn (:,:) |
---|
[5836] | 277 | ! |
---|
[6140] | 278 | IF( .NOT.ln_linssh ) THEN |
---|
[4689] | 279 | DO jk = 1, jpk |
---|
[6140] | 280 | e3t_b(:,:,jk) = e3t_n(:,:,jk) |
---|
[4689] | 281 | END DO |
---|
| 282 | ENDIF |
---|
[5836] | 283 | ! |
---|
[3] | 284 | ENDIF |
---|
[508] | 285 | ! |
---|
| 286 | END SUBROUTINE rst_read |
---|
[8661] | 287 | |
---|
[3] | 288 | !!===================================================================== |
---|
| 289 | END MODULE restart |
---|