| 1 | ! $Id$ |
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| 2 | MODULE open_climoz_m |
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| 3 | |
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| 4 | USE lmdz_print_control, ONLY: lunout |
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| 5 | IMPLICIT NONE |
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| 6 | |
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| 7 | CONTAINS |
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| 8 | |
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| 9 | !------------------------------------------------------------------------------- |
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| 10 | |
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| 11 | SUBROUTINE open_climoz(ncid, press_in_cen, press_in_edg, time_in, daily, adjust) |
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| 12 | |
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| 13 | !------------------------------------------------------------------------------- |
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| 14 | USE netcdf95, ONLY: nf95_open, nf95_close, nf95_gw_var, nf95_inq_varid |
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| 15 | USE netcdf, ONLY: nf90_nowrite |
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| 16 | USE lmdz_phys_mpi_data, ONLY: is_mpi_root |
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| 17 | USE lmdz_phys_mpi_transfert, ONLY: bcast_mpi |
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| 18 | USE phys_cal_mod, ONLY: calend, year_len, year_cur |
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| 19 | USE lmdz_abort_physic, ONLY: abort_physic |
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| 20 | !------------------------------------------------------------------------------- |
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| 21 | ! Purpose: This procedure should be called once per "gcm" run, by a single |
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| 22 | ! thread of each MPI process. |
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| 23 | ! The root MPI process opens "climoz_LMDZ.nc", reads the pressure |
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| 24 | ! levels and the times and broadcasts them to the other processes. |
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| 25 | ! We assume that, in "climoz_LMDZ.nc", the pressure levels are in hPa |
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| 26 | ! and in strictly ascending order. |
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| 27 | !------------------------------------------------------------------------------- |
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| 28 | ! Arguments (OpenMP shared): |
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| 29 | INTEGER, INTENT(OUT) :: ncid !--- "climoz_LMDZ.nc" identifier |
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| 30 | REAL, ALLOCATABLE, INTENT(OUT) :: press_in_cen(:) !--- at cells centers |
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| 31 | REAL, ALLOCATABLE, INTENT(OUT) :: press_in_edg(:) !--- at the interfaces (pressure intervals) |
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| 32 | REAL, ALLOCATABLE, INTENT(OUT) :: time_in(:) !--- records times, in days since Jan. 1st |
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| 33 | LOGICAL, INTENT(IN) :: daily !--- daily files (calendar dependent days nb) |
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| 34 | LOGICAL, INTENT(IN) :: adjust !--- tropopause adjustement required |
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| 35 | ! pressure levels press_in_cen/edg are in Pa a,d strictly ascending order. |
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| 36 | ! time_in is only used for monthly files (14 records) |
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| 37 | !------------------------------------------------------------------------------- |
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| 38 | ! Local variables: |
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| 39 | INTEGER :: varid !--- NetCDF variables identifier |
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| 40 | INTEGER :: nlev, ntim !--- pressure levels and time records numbers |
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| 41 | CHARACTER(LEN = 80) :: sub |
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| 42 | CHARACTER(LEN = 320) :: msg |
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| 43 | !------------------------------------------------------------------------------- |
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| 44 | sub = "open_climoz" |
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| 45 | WRITE(lunout, *)"Entering routine " // TRIM(sub) |
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| 46 | |
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| 47 | IF(is_mpi_root) THEN |
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| 48 | |
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| 49 | !--- OPEN FILE, READ PRESSURE LEVELS AND TIME VECTOR |
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| 50 | CALL nf95_open("climoz_LMDZ.nc", nf90_nowrite, ncid) |
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| 51 | CALL nf95_inq_varid(ncid, "plev", varid) |
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| 52 | CALL nf95_gw_var(ncid, varid, press_in_cen) |
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| 53 | ! Convert from hPa to Pa because "paprs" and "pplay" are in Pa: |
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| 54 | press_in_cen = press_in_cen * 100. |
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| 55 | nlev = SIZE(press_in_cen) |
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| 56 | CALL nf95_inq_varid(ncID, "time", varID) |
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| 57 | CALL nf95_gw_var(ncid, varid, time_in) |
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| 58 | ntim = SIZE(time_in) |
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| 59 | |
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| 60 | !--- BUILD EDGES OF PRESSURE INTERVALS: HALFWAY IN LOGARITHMS |
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| 61 | ALLOCATE(press_in_edg(nlev + 1)) |
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| 62 | press_in_edg = [0., SQRT(press_in_cen(1:nlev - 1) * press_in_cen(2:nlev)), HUGE(0.)] |
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| 63 | |
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| 64 | !--- CHECK RECORDS NUMBER AND DISPLAY CORRESPONDING INFORMATION |
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| 65 | IF(daily.AND.ntim/=year_len) THEN |
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| 66 | WRITE(msg, '(a,3(i4,a))')TRIM(sub) // ': Expecting a daily ozone file with', & |
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| 67 | year_len, ' records (year ', year_cur, ') ; found ', ntim, ' instead' |
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| 68 | CALL abort_physic(sub, msg, 1) |
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| 69 | ELSE IF(ALL([360, 14]/=ntim)) THEN |
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| 70 | WRITE(msg, '(a,i4,a)')TRIM(sub) // ': Expecting an ozone file with 14 (mont'& |
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| 71 | // 'hly case) or 360 (old style files) records ; found ', ntim, ' instead' |
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| 72 | CALL abort_physic(sub, msg, 1) |
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| 73 | ELSE |
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| 74 | IF(daily) THEN |
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| 75 | WRITE(msg, '(a,2(i4,a))')'daily file (', ntim, ' days in ', year_cur, ')' |
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| 76 | ELSE IF(ntim==14) THEN |
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| 77 | msg = '14 records monthly file' |
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| 78 | ELSE |
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| 79 | msg = '360 records files (old convention)' |
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| 80 | END IF |
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| 81 | WRITE(lunout, *)TRIM(sub) // ': Using a ' // TRIM(msg) |
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| 82 | END IF |
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| 83 | |
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| 84 | !--- MESSAGE ABOUT OPTIONAL STRETCHING FOR TROPOPAUSES MATCHING |
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| 85 | IF(adjust) THEN |
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| 86 | WRITE(lunout, *)TRIM(sub) // ': Adjusting O3 field to match gcm tropopause.' |
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| 87 | ELSE |
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| 88 | WRITE(lunout, *)TRIM(sub) // ': Interpolating O3 field directly on gcm levels.' |
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| 89 | END IF |
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| 90 | |
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| 91 | END IF |
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| 92 | CALL bcast_mpi(nlev) |
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| 93 | IF(.NOT.is_mpi_root) ALLOCATE(press_in_cen(nlev)); CALL bcast_mpi(press_in_cen) |
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| 94 | IF(.NOT.is_mpi_root) ALLOCATE(press_in_edg(nlev + 1)); CALL bcast_mpi(press_in_edg) |
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| 95 | CALL bcast_mpi(ntim) |
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| 96 | IF(.NOT.is_mpi_root) ALLOCATE(time_in(ntim)); CALL bcast_mpi(time_in) |
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| 97 | |
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| 98 | END SUBROUTINE open_climoz |
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| 99 | |
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| 100 | !------------------------------------------------------------------------------- |
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| 101 | |
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| 102 | END MODULE open_climoz_m |
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