[11589] | 1 | PROGRAM main |
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| 2 | !!====================================================================== |
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| 3 | !! *** PROGRAM main *** |
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| 4 | !! |
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| 5 | !! ** Purpose : compute geostrophic wind or horizontal pressure gradient |
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| 6 | !! from ECMWF atmospheric model vertical levels altitude, |
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| 7 | !! temperature and humidity 3D fields |
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| 8 | !! |
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| 9 | !!====================================================================== |
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| 10 | !! History : 2016-10 (F. Lemarié) Original code |
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| 11 | !! |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | USE module_io ! I/O routines |
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| 14 | USE module_grid ! compute input and output grids |
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| 15 | !! |
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| 16 | IMPLICIT NONE |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | !! |
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| 19 | !! |
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| 20 | !! |
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| 21 | !!---------------------------------------------------------------------- |
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| 22 | ! |
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| 23 | INTEGER :: ji,jj,jk,kt, nhym, nhyi |
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| 24 | INTEGER :: jpka ! number of vertical levels for input and target grids |
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| 25 | INTEGER :: jpi , jpj ! number of grid points in x and y directions |
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| 26 | INTEGER :: status |
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| 27 | INTEGER :: jptime,ctrl |
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| 28 | INTEGER :: ioerr,ncid |
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| 29 | INTEGER, ALLOCATABLE, DIMENSION(:,: ) :: ind |
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| 30 | INTEGER, PARAMETER :: stdout = 6 |
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| 31 | !! |
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| 32 | REAL(8) :: cff,tv |
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| 33 | !! |
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| 34 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: lev ! A coefficients to reconstruct ECMWF grid |
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| 35 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: A_w ! A coefficients to reconstruct ECMWF grid |
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| 36 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: B_w ! B coefficients to reconstruct ECMWF grid |
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| 37 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: B_r ! B coefficients to reconstruct ECMWF grid |
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| 38 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: A_r ! A coefficients to reconstruct ECMWF grid |
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| 39 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: ph,lon,lat |
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| 40 | REAL(8), ALLOCATABLE, DIMENSION(:,:,: ) :: e3t,ghw ! thickness of vertical layers in target grid |
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| 41 | REAL(8), ALLOCATABLE, DIMENSION(: ) :: tmp1d, tmp_fullw, tmp_fullm ! temporary/working 1D arrays |
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| 42 | REAL(8), ALLOCATABLE, DIMENSION(:,:,:,:) :: humi |
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| 43 | REAL(8), ALLOCATABLE, DIMENSION(:,:,:,:) :: temp |
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| 44 | REAL(8), ALLOCATABLE, DIMENSION(:,:,:,:) :: uhpg |
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| 45 | REAL(8), ALLOCATABLE, DIMENSION(:,:,:,:) :: vhpg |
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| 46 | REAL(8), ALLOCATABLE, DIMENSION(:,: ) :: slp, zsurf, zsurf_smth, slp_smth, ghw_smth !, slp_mask, ghw_mask |
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| 47 | REAL(8), ALLOCATABLE, DIMENSION(:,: ) :: dx,dy,ff_t,tmask, tmask2 |
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| 48 | REAL(8), ALLOCATABLE, DIMENSION(:,: ) :: FX,FE,wrkx,wrke |
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| 49 | REAL(8), ALLOCATABLE, DIMENSION(:,: ) :: dZx,dZe |
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| 50 | !! |
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| 51 | CHARACTER(len=500) :: file_u,file_v,file_hpg, file_geos ! ECMWF files containing wind components |
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| 52 | CHARACTER(len=500) :: file_t,file_q, file_m ! ECMWF files containing tracers and mask |
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| 53 | CHARACTER(len=500) :: file_z,file_p,cn_dir ! ECMWF files containing surface geopot and pressure |
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| 54 | CHARACTER(len=500) :: out_file |
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| 55 | CHARACTER(len=500) :: namelistf |
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| 56 | CHARACTER(len=500) :: argument |
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| 57 | CHARACTER(len= 20),DIMENSION(4) :: dimnames |
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| 58 | CHARACTER(len= 20),DIMENSION(4) :: varnames |
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| 59 | CHARACTER(6) :: mask_var ! name of mask variable in file_m file |
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| 60 | !! |
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| 61 | LOGICAL :: ln_read_zsurf ! read surface geopotential or not |
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| 62 | LOGICAL :: ln_read_mask ! read land-sea mask or not |
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| 63 | LOGICAL :: ln_perio_latbc ! use periodic BC along the domain latitudinal edges (for global data) or use zero-gradient BC (for regional data) |
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| 64 | LOGICAL :: ln_c1d ! output only a single column in output file |
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| 65 | LOGICAL :: ln_hpg_frc ! compute horizontal pressure gradient |
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| 66 | LOGICAL :: ln_geo_wnd ! compute goestrophic wind components |
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| 67 | LOGICAL :: ln_slp_smth ! apply gibbs oscillation filetring on mean sea level pressure |
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| 68 | LOGICAL :: ln_drw_smth ! apply gibbs oscillation filetring on mean sea level pressure |
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| 69 | LOGICAL :: ln_slp_log ! log(sea-level pressure) or sea-level pressure |
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| 70 | LOGICAL :: ln_lsm_land ! if T mask is 1 over land and 0 over ocean if F it is the other way around |
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| 71 | LOGICAL :: ln_impose_z1 ! impose the altitude of the first level in target grid |
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| 72 | INTEGER :: ptemp_method ! way to compute potential temperature |
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| 73 | ! = 0 (absolute temperature) |
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| 74 | ! = 1 (potential temperature with local ref pressure) |
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| 75 | ! = 2 (potential temperature with global ref pressure on temperature perturbation) |
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| 76 | ! = 3 (potential temperature with global ref pressure) |
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| 77 | !! |
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| 78 | REAL(8), PARAMETER :: grav = 9.80665 |
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| 79 | REAL(8), PARAMETER :: Rd = 287.058 |
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| 80 | REAL(8), PARAMETER :: zvir = 0.609133 |
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| 81 | REAL(8), PARAMETER :: omega = 7.292116e-05 |
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| 82 | REAL(8), PARAMETER :: rad = 3.141592653589793 / 180. |
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| 83 | REAL(8), PARAMETER :: rt = 6371229. |
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| 84 | REAL(8), PARAMETER :: lat_smth = 0. !65. !!GS: possibility to smooth only above a selected latitude |
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| 85 | |
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| 86 | |
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| 87 | !!--------------------------------------------------------------------- |
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| 88 | !! List of variables read in the namelist file |
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| 89 | NAMELIST/nml_opt/ ptemp_method, ln_slp_log, ln_slp_smth, ln_read_mask, ln_perio_latbc, & |
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| 90 | & ln_hpg_frc, ln_geo_wnd, ln_c1d, ln_read_zsurf, ln_lsm_land, ln_drw_smth |
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| 91 | NAMELIST/nml_fld/ cn_dir, file_u, file_v, file_t, & |
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| 92 | & file_q, file_z, file_p, file_hpg, file_geos, & |
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| 93 | & file_m, mask_var |
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| 94 | !! |
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| 95 | !! get the namelist file name |
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| 96 | CALL get_command_argument( 1, argument, ctrl, status) |
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| 97 | ! |
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| 98 | SELECT CASE(status) |
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| 99 | CASE(0) |
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| 100 | namelistf = trim(argument) |
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| 101 | CASE(-1) |
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| 102 | WRITE(stdout,*) "### Error: file name too long" |
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| 103 | STOP |
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| 104 | CASE DEFAULT |
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| 105 | namelistf = 'namelist_abl_tools' |
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| 106 | END SELECT |
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| 107 | !!--------------------------------------------------------------------- |
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| 108 | |
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| 109 | |
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| 110 | !!--------------------------------------------------------------------- |
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| 111 | !! read namelist variables |
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| 112 | ctrl = 0 |
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| 113 | OPEN(50, file=namelistf, status='old', form='formatted', access='sequential', iostat=ioerr) |
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| 114 | IF (ioerr /= 0) ctrl = ctrl + 1 |
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| 115 | READ(50,nml_opt, iostat=ioerr); IF (ioerr /= 0) ctrl = ctrl + 1 |
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| 116 | READ(50,nml_fld, iostat=ioerr); IF (ioerr /= 0) ctrl = ctrl + 1 |
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| 117 | |
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| 118 | IF (ctrl > 0) then |
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| 119 | WRITE(stdout,*) "### E R R O R while reading namelist file '",trim(namelistf),"'" |
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| 120 | WRITE(stdout,*) " ctrl = ",ctrl |
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| 121 | STOP |
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| 122 | ELSE |
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| 123 | WRITE(stdout,*) " Namelist file ",trim(namelistf), " OK " |
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| 124 | END IF |
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| 125 | |
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| 126 | IF(ln_hpg_frc) THEN |
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| 127 | out_file = trim(cn_dir)//'/'//trim(file_hpg) |
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| 128 | ELSE IF(ln_geo_wnd) THEN |
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| 129 | out_file = trim(cn_dir)//'/'//trim(file_geos) |
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| 130 | ELSE |
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| 131 | WRITE(stdout,*) "### E R R O R in namelist variable " |
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| 132 | WRITE(stdout,*) "either ln_hpg_frc or ln_geo_wnd should be set to True" |
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| 133 | STOP |
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| 134 | END IF |
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| 135 | !!--------------------------------------------------------------------- |
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| 136 | |
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| 137 | |
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| 138 | !!--------------------------------------------------------------------- |
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| 139 | ! check files content |
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| 140 | CALL Read_Ncdf_dim('lev',trim(cn_dir)//'/'//trim(file_t),jpka) |
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| 141 | ! geop_surf temp humi pressure |
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| 142 | varnames = [ character(len=3) :: 'Z', 'T', 'Q', 'MSL' ] |
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| 143 | IF (ln_read_zsurf) varnames(4) = "SP" |
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| 144 | IF (ln_slp_log) varnames(4) = "LNSP" |
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| 145 | |
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| 146 | ctrl = 0 |
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| 147 | IF (ln_read_zsurf) THEN |
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| 148 | IF( .not. VAR_EXISTENCE( trim(varnames(1)) , trim(cn_dir)//'/'//trim(file_z) ) ) ctrl = ctrl + 1 |
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| 149 | END IF |
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| 150 | IF ( .not. VAR_EXISTENCE( trim(varnames(2)) , trim(cn_dir)//'/'//trim(file_t) ) ) ctrl = ctrl + 1 |
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| 151 | IF ( .not. VAR_EXISTENCE( trim(varnames(3)) , trim(cn_dir)//'/'//trim(file_q) ) ) ctrl = ctrl + 1 |
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| 152 | IF ( .not. VAR_EXISTENCE( trim(varnames(4)) , trim(cn_dir)//'/'//trim(file_p) ) ) ctrl = ctrl + 1 |
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| 153 | WRITE(*,*) " pressure variable name: ", varnames(4) |
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| 154 | |
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| 155 | IF ( ctrl > 0 ) THEN |
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| 156 | WRITE(stdout,*) "### E R R O R while reading ECMWF atmospheric files " |
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| 157 | STOP |
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| 158 | ELSE |
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| 159 | WRITE(stdout,*) " ECMWF atmospheric files OK " |
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| 160 | END IF |
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| 161 | !!--------------------------------------------------------------------- |
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| 162 | |
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| 163 | |
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| 164 | !!--------------------------------------------------------------------- |
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| 165 | !! read the dimensions for the input files |
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| 166 | CALL Read_Ncdf_dim ( 'time', trim(cn_dir)//'/'//trim(file_t), jptime ) |
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| 167 | CALL Read_Ncdf_dim ( 'lon' , trim(cn_dir)//'/'//trim(file_t), jpi ) |
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| 168 | CALL Read_Ncdf_dim ( 'lat' , trim(cn_dir)//'/'//trim(file_t), jpj ) |
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| 169 | CALL Read_Ncdf_dim ( 'nhym' , trim(cn_dir)//'/'//trim(file_t), nhym ) |
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| 170 | CALL Read_Ncdf_dim ( 'nhyi' , trim(cn_dir)//'/'//trim(file_t), nhyi ) |
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| 171 | ! |
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| 172 | !!--------------------------------------------------------------------- |
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| 173 | |
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| 174 | |
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| 175 | !!--------------------------------------------------------------------- |
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| 176 | !! allocate arrays |
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| 177 | ALLOCATE( A_w ( 0:jpka ) ) |
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| 178 | ALLOCATE( B_w ( 0:jpka ) ) |
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| 179 | ALLOCATE( B_r ( 1:jpka ) ) |
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| 180 | ALLOCATE( A_r ( 1:jpka ) ) |
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| 181 | |
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| 182 | ALLOCATE( e3t ( 1:jpi, 1:jpj, 1:jpka ) ) |
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| 183 | ALLOCATE( ghw ( 1:jpi, 1:jpj, 0:jpka ) ) |
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| 184 | ALLOCATE( slp_smth(1:jpi, 1:jpj ) ) |
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| 185 | ALLOCATE( ghw_smth(1:jpi, 1:jpj ) ) |
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| 186 | ALLOCATE( slp ( 1:jpi, 1:jpj ) ) |
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| 187 | ALLOCATE( zsurf ( 1:jpi, 1:jpj ) ) |
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| 188 | ALLOCATE( zsurf_smth ( 1:jpi, 1:jpj ) ) |
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| 189 | ALLOCATE( temp ( 1:jpi, 1:jpj, 1:jpka, 1) ) |
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| 190 | ALLOCATE( humi ( 1:jpi, 1:jpj, 1:jpka, 1) ) |
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| 191 | ALLOCATE( uhpg ( 1:jpi, 1:jpj, 1:jpka, 1) ) |
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| 192 | ALLOCATE( vhpg ( 1:jpi, 1:jpj, 1:jpka, 1) ) |
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| 193 | ALLOCATE( ph ( 0:jpka ) ) |
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| 194 | ALLOCATE( dx ( 1:jpi, 1:jpj ) ) |
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| 195 | ALLOCATE( dy ( 1:jpi, 1:jpj ) ) |
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| 196 | ALLOCATE( FX ( 1:jpi, 1:jpj ) ) |
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| 197 | ALLOCATE( FE ( 1:jpi, 1:jpj ) ) |
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| 198 | ALLOCATE( dzx ( 0:jpi, 1:jpj ) ) |
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| 199 | ALLOCATE( dze ( 1:jpi, 0:jpj ) ) |
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| 200 | ALLOCATE( wrkx ( 1:jpi, 1:jpj ) ) |
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| 201 | ALLOCATE( wrke ( 1:jpi, 1:jpj ) ) |
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| 202 | ALLOCATE( tmask ( 1:jpi, 1:jpj ) ) |
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| 203 | ALLOCATE( tmask2 ( 1:jpi, 1:jpj ) ) |
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| 204 | IF (jpka.NE.nhym) THEN |
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| 205 | ALLOCATE( tmp_fullw(1:nhyi) ) |
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| 206 | ALLOCATE( tmp_fullm(1:nhym) ) |
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| 207 | END IF |
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| 208 | |
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| 209 | !!--------------------------------------------------------------------- |
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| 210 | !! Read the mask and remove some closed seas |
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| 211 | IF (ln_read_mask) THEN |
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| 212 | CALL init_atm_mask( jpi, jpj, trim(cn_dir)//'/'//trim(file_m), trim(mask_var), ln_lsm_land, tmask) |
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| 213 | ELSE |
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| 214 | tmask(:,:) = 1. |
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| 215 | END IF |
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| 216 | tmask2 = tmask |
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| 217 | !! |
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| 218 | |
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| 219 | !! Read the static A and B coefficients for the ECMWF vertical grid |
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| 220 | IF (jpka.EQ.nhym) THEN |
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| 221 | CALL Read_Ncdf_var ( 'hyai', trim(cn_dir)//'/'//trim(file_t), A_w ) |
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| 222 | CALL Read_Ncdf_var ( 'hybi', trim(cn_dir)//'/'//trim(file_t), B_w ) |
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| 223 | CALL Read_Ncdf_var ( 'hyam', trim(cn_dir)//'/'//trim(file_t), A_r ) |
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| 224 | CALL Read_Ncdf_var ( 'hybm', trim(cn_dir)//'/'//trim(file_t), B_r ) |
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| 225 | ELSE |
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| 226 | CALL Read_Ncdf_var ( 'hyai', trim(cn_dir)//'/'//trim(file_t), tmp_fullw ) |
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| 227 | A_w(0:jpka) = tmp_fullw(nhyi-(jpka+1)+1:nhyi) |
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| 228 | CALL Read_Ncdf_var ( 'hybi', trim(cn_dir)//'/'//trim(file_t), tmp_fullw ) |
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| 229 | B_w(0:jpka) = tmp_fullw(nhyi-(jpka+1)+1:nhyi) |
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| 230 | CALL Read_Ncdf_var ( 'hyam', trim(cn_dir)//'/'//trim(file_t), tmp_fullm ) |
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| 231 | A_r(1:jpka) = tmp_fullm(nhym-jpka+1:nhym) |
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| 232 | CALL Read_Ncdf_var ( 'hybm', trim(cn_dir)//'/'//trim(file_t), tmp_fullm ) |
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| 233 | B_r(1:jpka) = tmp_fullm(nhym-jpka+1:nhym) |
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| 234 | END IF |
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| 235 | |
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| 236 | ALLOCATE(lat(1:jpj),lon(1:jpi),ff_t(1:jpi,1:jpj),lev(1:jpka)) |
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| 237 | CALL Read_Ncdf_var ( 'lon' , trim(cn_dir)//'/'//trim(file_t), lon ) !<-- longitude |
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| 238 | CALL Read_Ncdf_var ( 'lat' , trim(cn_dir)//'/'//trim(file_t), lat ) !<-- latitude |
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| 239 | CALL Read_Ncdf_var ( 'lev' , trim(cn_dir)//'/'//trim(file_t), lev ) |
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| 240 | |
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| 241 | |
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| 242 | !!--------------------------------------------------------------------- |
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| 243 | !++ Compute Coriolis frequency at cell centers |
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| 244 | ! |
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| 245 | DO jj = 1, jpj |
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| 246 | DO ji = 1, jpi |
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| 247 | ff_t(ji,jj) = 2. * omega * SIN( rad * lat(jj) ) |
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| 248 | END DO |
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| 249 | END DO |
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| 250 | |
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| 251 | |
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| 252 | !!--------------------------------------------------------------------- |
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| 253 | !++ Compute dx and dy at cell centers |
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| 254 | ! |
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| 255 | dx(:,:) = 0. |
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| 256 | dy(:,:) = 0. |
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| 257 | DO jj = 2, jpj-1 |
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| 258 | DO ji = 1, jpi-1 |
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| 259 | dx(ji,jj) = rt * rad * abs( lon(ji+1) - lon(ji) ) * COS( rad * lat(jj) ) |
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| 260 | END DO |
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| 261 | END DO |
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| 262 | dx( jpi,1:jpj) = dx( jpi-1,1:jpj ) |
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| 263 | dx(1:jpi, jpj) = dx(1:jpi , jpj-1) |
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| 264 | dx(1:jpi,1 ) = dx(1:jpi ,2 ) |
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| 265 | !++ |
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| 266 | DO jj = 1, jpj-1 |
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| 267 | DO ji = 1, jpi |
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| 268 | dy(ji,jj) = rt * rad * abs( lat(jj+1) - lat(jj) ) |
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| 269 | END DO |
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| 270 | END DO |
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| 271 | dy(1:jpi,jpj) = dy(1:jpi,jpj-1) |
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| 272 | |
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| 273 | |
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| 274 | !!--------------------------------------------------------------------- |
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| 275 | !! create output file |
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| 276 | !! |
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| 277 | status = nf90_create( trim(out_file), NF90_WRITE, ncid ) |
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| 278 | status = nf90_close ( ncid ) |
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| 279 | |
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| 280 | CALL Write_Ncdf_dim ( 'lon' , trim(out_file), jpi ) |
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| 281 | CALL Write_Ncdf_dim ( 'lat' , trim(out_file), jpj ) |
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| 282 | CALL Write_Ncdf_dim ( 'lev' , trim(out_file), jpka ) |
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| 283 | CALL Write_Ncdf_dim ( 'nhym' , trim(out_file), jpka ) |
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| 284 | CALL Write_Ncdf_dim ( 'nhyi' , trim(out_file), jpka+1 ) |
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| 285 | CALL Write_Ncdf_dim ( 'time' , trim(out_file), 0 ) |
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| 286 | |
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| 287 | |
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| 288 | !!--------------------------------------------------------------------- |
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| 289 | !! Initialize the name of the dimensions for geostrophic winds in the output file |
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| 290 | !! |
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| 291 | dimnames(1) = 'lon' |
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| 292 | dimnames(2) = 'lat' |
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| 293 | dimnames(3) = 'lev' |
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| 294 | dimnames(4) = 'time' |
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| 295 | |
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| 296 | CALL Write_Ncdf_var( 'lon', 'lon', trim(out_file), lon, 'double' ) |
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| 297 | CALL Write_Ncdf_var( 'lat', 'lat', trim(out_file), lat, 'double' ) |
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| 298 | CALL Write_Ncdf_var( 'lev', 'lev', trim(out_file), lev, 'double' ) |
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| 299 | CALL Write_Ncdf_var( 'hyai', 'nhyi', trim(out_file), A_w, 'double' ) |
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| 300 | CALL Write_Ncdf_var( 'hybi', 'nhyi', trim(out_file), B_w, 'double' ) |
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| 301 | CALL Write_Ncdf_var( 'hyam', 'nhym', trim(out_file), A_r, 'double' ) |
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| 302 | CALL Write_Ncdf_var( 'hybm', 'nhym', trim(out_file), B_r, 'double' ) |
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| 303 | |
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| 304 | CALL Write_Ncdf_var( 'tmask', dimnames(1:2), trim(out_file), tmask, 'float' ) |
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| 305 | |
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| 306 | |
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| 307 | !!--------------------------------------------------------------------- |
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| 308 | ! Read time variable |
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| 309 | ALLOCATE(tmp1d (1:jptime)) |
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| 310 | CALL Read_Ncdf_var ( 'time', trim(cn_dir)//'/'//trim(file_t), tmp1d ) |
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| 311 | !!--------------------------------------------------------------------- |
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| 312 | |
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| 313 | |
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| 314 | DO kt=1,jptime |
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| 315 | ! |
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| 316 | WRITE(stdout,*) '======================' |
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| 317 | WRITE(stdout,*) 'time = ',kt,'/',jptime |
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| 318 | ! |
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| 319 | CALL Write_Ncdf_var( 'time', dimnames(4:4), trim(out_file), tmp1d(kt:kt), kt, 'double' ) |
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| 320 | ! |
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| 321 | IF( kt == 1 ) THEN |
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| 322 | CALL Duplicate_lon_lat_time( trim(cn_dir)//'/'//trim(file_t), out_file ) |
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| 323 | CALL Duplicate_lev_hyb ( trim(cn_dir)//'/'//trim(file_t), out_file ) |
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| 324 | ENDIF |
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| 325 | ! |
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| 326 | IF ( varnames(4) == "LNSP" ) THEN |
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| 327 | CALL Read_Ncdf_var( varnames(4) , trim(cn_dir)//'/'//trim(file_p), slp(:,:), kt, 1 ) !<-- log of surface pressure |
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| 328 | ELSE |
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| 329 | CALL Read_Ncdf_var( varnames(4) , trim(cn_dir)//'/'//trim(file_p), slp(:,:), kt ) |
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| 330 | END IF |
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| 331 | ! |
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| 332 | IF (ln_slp_log) THEN |
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| 333 | DO jj = 1, jpj |
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| 334 | DO ji = 1, jpi |
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| 335 | slp(ji,jj) = exp( slp(ji,jj) ) |
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| 336 | END DO |
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| 337 | END DO |
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| 338 | ENDIF |
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| 339 | ! |
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| 340 | IF (ln_read_zsurf) THEN |
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| 341 | CALL Read_Ncdf_var( varnames(1) , trim(cn_dir)//'/'//trim(file_z), zsurf(:,:), kt, 1 ) !<-- surface geopotential |
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| 342 | ELSE |
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| 343 | zsurf(:,:) = 0. |
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| 344 | END IF |
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| 345 | ! |
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| 346 | CALL Read_Ncdf_var ( varnames(2), trim(cn_dir)//'/'//trim(file_t), temp(:,:,:,:), kt ) !<-- temperature |
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| 347 | CALL Read_Ncdf_var ( varnames(3), trim(cn_dir)//'/'//trim(file_q), humi(:,:,:,:), kt ) !<-- humidity |
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| 348 | WHERE(humi.LT.1.E-08) humi = 1.E-08 !<-- negative values in ECMWF |
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| 349 | ! |
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| 350 | ! Smoothing of surface fields to remove gibbs oscillations (must be done on both fields or none of them) |
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| 351 | !IF( ln_slp_smth ) CALL smooth_field( jpi, jpj, slp (:,:), tmask(:,:), 3 ) |
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| 352 | !IF (ln_read_zsurf.AND.ln_slp_smth) CALL smooth_field( jpi, jpj, zsurf(:,:), tmask(:,:), 3 ) |
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| 353 | !IF( ln_slp_smth ) CALL DTV_Filter( jpi, jpj, slp(:,:), tmask(:,:,1), 25, kt ) !<-- not yet robust enough |
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| 354 | |
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| 355 | !!GS: DO NOT USE SMOOTH + LAND MASK FOR NOW (BUG) |
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| 356 | IF( ln_slp_smth ) THEN |
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| 357 | slp_smth(:,:) = slp(:,:) |
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| 358 | wrke(:,:) = 1. |
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| 359 | CALL smooth_field( jpi, jpj, slp_smth(:,1:jpj), wrke(:,1:jpj), 3 ) |
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| 360 | IF (ln_read_zsurf) THEN |
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| 361 | zsurf_smth(:,:) = zsurf(:,:) |
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| 362 | CALL smooth_field( jpi, jpj, zsurf_smth(:,:), wrke(:,:), 3 ) |
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| 363 | END IF |
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| 364 | IF( ABS(lat_smth).GT.0.1) THEN |
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| 365 | DO jj = 1, jpj |
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| 366 | DO ji = 1, jpi |
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| 367 | IF ((lat(jj).GE.lat_smth).OR.(lat(jj).LE.-1.*lat_smth)) THEN |
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| 368 | slp(ji,jj) = slp_smth(ji,jj) |
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| 369 | IF (ln_read_zsurf) zsurf(ji,jj) = zsurf_smth(ji,jj) |
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| 370 | END IF |
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| 371 | END DO |
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| 372 | END DO |
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| 373 | ELSE |
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| 374 | slp(:,:) = slp_smth(:,:) |
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| 375 | IF (ln_read_zsurf) zsurf(:,:) = zsurf_smth(:,:) |
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| 376 | END IF |
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| 377 | END IF |
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| 378 | CALL Write_Ncdf_var( 'slp', dimnames(1:2), trim(out_file), slp(:,:), kt, 'float' ) |
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| 379 | IF (ln_read_zsurf) CALL Write_Ncdf_var( 'zsurf', dimnames(1:2), trim(out_file), zsurf(:,:), kt, 'float' ) |
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| 380 | |
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| 381 | ! |
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| 382 | ! Compute the altitude at layer interfaces |
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| 383 | ghw(:,:,1:jpka) = 0. |
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| 384 | ghw(:,:, jpka) = zsurf(:,:) * (1. / grav) ! * tmask(:,:) |
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| 385 | DO jj = 1, jpj |
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| 386 | DO ji = 1, jpi |
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| 387 | DO jk = 0, jpka |
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| 388 | ph(jk) = A_w( jk ) + B_w( jk ) * slp( ji, jj ) !<-- Pa |
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| 389 | END DO |
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| 390 | !ph(0) = 0.1 |
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| 391 | IF ( nhym .EQ. jpka) ph(0) = 1. |
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| 392 | DO jk = jpka,1,-1 |
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| 393 | tv = temp( ji, jj, jk, 1 ) * ( 1. + zvir*humi( ji, jj, jk, 1 ) ) !<-- Virtual temperature |
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| 394 | e3t ( ji, jj, jk ) = (1./grav)*( Rd * tv * log( ph( jk ) / ph( jk-1 ) ) ) !* tmask(ji, jj) |
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| 395 | ghw ( ji, jj, jk-1 ) = e3t( ji, jj, jk ) + ghw( ji, jj, jk ) |
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| 396 | END DO |
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| 397 | END DO |
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| 398 | END DO |
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| 399 | |
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| 400 | IF( ln_slp_smth ) THEN |
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| 401 | wrke(:,:) = 1. |
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| 402 | DO jk = 0, jpka |
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| 403 | ghw_smth(:,:) = ghw(:,:,jk) |
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| 404 | CALL smooth_field( jpi, jpj, ghw_smth(:,1:jpj), wrke(:,1:jpj), 3 ) |
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| 405 | IF( ABS(lat_smth).GT.0.1) THEN |
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| 406 | DO jj = 1, jpj |
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| 407 | DO ji = 1, jpi |
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| 408 | IF ((lat(jj).GE.lat_smth).OR.(lat(jj).LE.-1.*lat_smth)) ghw(ji,jj,jk) = ghw_smth(ji,jj) |
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| 409 | END DO |
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| 410 | END DO |
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| 411 | ELSE |
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| 412 | ghw(:,:,jk) = ghw_smth(:,:) |
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| 413 | END IF |
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| 414 | END DO |
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| 415 | END IF |
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| 416 | |
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| 417 | ! |
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| 418 | ! Compute horizontal gradient of slp in x-direction (FX = dslp / dx) |
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| 419 | FX(:,:) = 0. |
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| 420 | DO jj = 1, jpj |
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| 421 | DO ji = 1, jpi-1 |
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| 422 | IF ((tmask(ji,jj) .gt. 0.5).AND.(tmask(ji+1,jj) .gt. 0.5)) THEN |
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| 423 | cff = 2. / ( dx( ji+1,jj ) + dx( ji,jj ) ) |
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| 424 | FX( ji ,jj ) = cff * ( slp( ji+1,jj ) - slp( ji,jj ) ) |
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| 425 | ELSE |
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| 426 | tmask2(ji:ji+1,jj) = 0. |
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| 427 | END IF |
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| 428 | END DO |
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| 429 | END DO |
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| 430 | |
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| 431 | IF (ln_perio_latbc) THEN |
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| 432 | ! apply periodicity |
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| 433 | DO jj = 1, jpj |
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| 434 | IF ((tmask(1,jj) .gt. 0.5).AND.(tmask(jpi,jj) .gt. 0.5)) THEN |
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| 435 | cff = 2. / ( dx( 1, jj) + dx( jpi, jj) ) |
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| 436 | FX( jpi , jj) = cff * ( slp( 1, jj) - slp( jpi, jj) ) |
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| 437 | ELSE |
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| 438 | tmask2( 1, jj) = 0. |
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| 439 | tmask2( jpi, jj) = 0. |
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| 440 | END IF |
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| 441 | END DO |
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| 442 | ELSE |
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| 443 | ! apply no-gradient |
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| 444 | DO jj = 1, jpj |
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| 445 | FX( jpi ,jj ) = FX( jpi-1 ,jj ) |
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| 446 | END DO |
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| 447 | ENDIF |
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| 448 | |
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| 449 | ! |
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| 450 | ! Compute horizontal gradient of slp in y-direction (FE = dslp / dy) |
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| 451 | FE(:,:) = 0. |
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| 452 | DO jj = 1, jpj-1 |
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| 453 | DO ji = 1, jpi |
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| 454 | IF ((tmask(ji,jj) .gt. 0.5).AND.(tmask(ji,jj+1) .gt. 0.5)) THEN |
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| 455 | cff = 2. / ( dy( ji,jj+1 ) + dy( ji,jj ) ) |
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| 456 | FE( ji ,jj ) = cff * ( slp( ji,jj+1 ) - slp( ji,jj ) ) |
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| 457 | ELSE |
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| 458 | tmask2(ji,jj:jj+1) = 0. |
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| 459 | END IF |
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| 460 | END DO |
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| 461 | END DO |
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| 462 | |
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| 463 | ! apply no-gradient |
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| 464 | DO ji = 1, jpi |
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| 465 | FE( ji ,jpj ) = FE( ji ,jpj-1 ) |
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| 466 | END DO |
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| 467 | |
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| 468 | ! |
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| 469 | !++ Compute the geostrophic winds |
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| 470 | ! |
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| 471 | dZx(:,:) = 0. |
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| 472 | dZe(:,:) = 0. |
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| 473 | wrkX(:,:) = 0. |
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| 474 | wrkE(:,:) = 0. |
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| 475 | !//////////// |
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| 476 | DO jk=1,jpka |
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| 477 | !//////////// |
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| 478 | |
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| 479 | ! |
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| 480 | ! Compute horizontal gradient of altitude in x-direction along the coordinate dZx = (dz / dx)s |
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| 481 | DO jj = 1, jpj |
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| 482 | DO ji = 1, jpi-1 |
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| 483 | IF ((tmask(ji,jj) .gt. 0.5).AND.(tmask(ji+1,jj) .gt. 0.5)) THEN |
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| 484 | cff = 1. / (dx(ji+1,jj)+dx(ji,jj)) |
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| 485 | dZx(ji,jj) = cff * ( (ghw( ji+1, jj, jk-1) - ghw( ji, jj, jk-1)) & |
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| 486 | & +(ghw( ji+1, jj, jk ) - ghw( ji, jj, jk )) ) |
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| 487 | ELSE |
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| 488 | tmask2(ji:ji+1,jj) = 0. |
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| 489 | END IF |
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| 490 | END DO |
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| 491 | END DO |
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| 492 | |
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| 493 | IF (ln_perio_latbc) THEN |
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| 494 | ! apply periodicity |
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| 495 | DO jj = 1, jpj |
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| 496 | IF ((tmask(1,jj) .gt. 0.5).AND.(tmask(jpi,jj) .gt. 0.5)) THEN |
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| 497 | cff = 1. / (dx(1,jj)+dx(jpi,jj)) |
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| 498 | dZx(jpi,jj) = cff * ( (ghw( 1, jj, jk-1) - ghw( jpi, jj, jk-1)) & |
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| 499 | & +(ghw( 1, jj, jk ) - ghw( jpi, jj, jk )) ) |
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| 500 | dZx( 0,jj) = dZx(jpi,jj) |
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| 501 | ELSE |
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| 502 | tmask2( 1, jj) = 0. |
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| 503 | tmask2(jpi, jj) = 0. |
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| 504 | END IF |
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| 505 | END DO |
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| 506 | ELSE |
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| 507 | ! apply no-gradient |
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| 508 | DO jj = 1, jpj |
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| 509 | dZx(jpi,jj) = dZx(jpi-1,jj) |
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| 510 | dZx( 0,jj) = dZx( 1,jj) |
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| 511 | END DO |
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| 512 | END IF |
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| 513 | |
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| 514 | ! |
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| 515 | ! Compute horizontal gradient of altitude in y-direction along the coordinate dZy = (dz / dy)s |
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| 516 | DO jj = 1, jpj-1 |
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| 517 | DO ji = 1, jpi |
---|
| 518 | IF ((tmask(ji,jj) .gt. 0.5).AND.(tmask(ji,jj+1) .gt. 0.5)) THEN |
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| 519 | cff = 1. / (dy(ji,jj)+dy(ji,jj+1)) |
---|
| 520 | dZe(ji,jj) = cff * ( (ghw( ji, jj+1, jk-1) - ghw( ji, jj, jk-1)) & |
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| 521 | & +(ghw( ji, jj+1, jk ) - ghw( ji, jj, jk )) ) |
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| 522 | ELSE |
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| 523 | tmask2(ji,jj:jj+1) = 0. |
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| 524 | END IF |
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| 525 | END DO |
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| 526 | END DO |
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| 527 | |
---|
| 528 | ! apply no-gradient |
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| 529 | DO ji = 1, jpi |
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| 530 | dZe(ji,jpj) = dZe(ji,jpj-1) |
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| 531 | dZe(ji, 0) = dZe(ji, 1) |
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| 532 | END DO |
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| 533 | |
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| 534 | |
---|
| 535 | ! Compute horizontal pressure gradient in x-direction along the coordinate wrkX = (dp/dx)s |
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| 536 | DO jj = 1, jpj |
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| 537 | DO ji = 2, jpi |
---|
| 538 | IF ((tmask(ji,jj) .gt. 0.5).AND.(tmask(ji-1,jj) .gt. 0.5)) THEN |
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| 539 | cff = slp(ji,jj) * (B_w(jk)-B_w(jk-1)) + (A_w(jk)-A_w(jk-1)) |
---|
| 540 | wrkX(ji,jj) = B_r(jk) * 0.5 * (FX(ji,jj)+FX(ji-1,jj)) & |
---|
| 541 | & * (ghw(ji,jj,jk)-ghw(ji,jj,jk-1)) / cff |
---|
| 542 | ELSE |
---|
| 543 | tmask2(ji-1:ji,jj) = 0. |
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| 544 | END IF |
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| 545 | END DO |
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| 546 | END DO |
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| 547 | |
---|
| 548 | IF (ln_perio_latbc) THEN |
---|
| 549 | ! apply periodicity |
---|
| 550 | ji = 1 |
---|
| 551 | DO jj = 1, jpj |
---|
| 552 | IF ((tmask(1,jj) .gt. 0.5).AND.(tmask(jpi,jj) .gt. 0.5)) THEN |
---|
| 553 | cff = slp(ji,jj) * (B_w(jk)-B_w(jk-1)) + (A_w(jk)-A_w(jk-1)) |
---|
| 554 | wrkX(ji,jj) = B_r(jk) * 0.5 * (FX(ji,jj)+FX(jpi,jj)) & |
---|
| 555 | & * (ghw(ji,jj,jk)-ghw(ji,jj,jk-1)) / cff |
---|
| 556 | ELSE |
---|
| 557 | tmask2( 1,jj) = 0. |
---|
| 558 | tmask2(jpi,jj) = 0. |
---|
| 559 | END IF |
---|
| 560 | END DO |
---|
| 561 | ELSE |
---|
| 562 | ! apply no gradient |
---|
| 563 | DO jj = 1, jpj |
---|
| 564 | wrkX(1,jj) = wrkX(2,jj) |
---|
| 565 | END DO |
---|
| 566 | END IF |
---|
| 567 | |
---|
| 568 | |
---|
| 569 | ! Compute horizontal pressure gradient in y-direction along the coordinate wrkE = (dp/dy)s |
---|
| 570 | DO jj = 2, jpj |
---|
| 571 | DO ji = 1, jpi |
---|
| 572 | IF ((tmask(ji,jj) .gt. 0.5).AND.(tmask(ji,jj-1) .gt. 0.5)) THEN |
---|
| 573 | cff = slp(ji,jj) * (B_w(jk)-B_w(jk-1)) + (A_w(jk)-A_w(jk-1)) |
---|
| 574 | wrkE(ji,jj) = B_r(jk) * 0.5 * (FE(ji,jj)+FE(ji,jj-1)) & |
---|
| 575 | & * (ghw(ji,jj,jk)-ghw(ji,jj,jk-1)) / cff |
---|
| 576 | ELSE |
---|
| 577 | tmask2(ji,jj-1:jj) = 0. |
---|
| 578 | END IF |
---|
| 579 | END DO |
---|
| 580 | END DO |
---|
| 581 | |
---|
| 582 | ! apply no gradient |
---|
| 583 | jj = 1 |
---|
| 584 | DO ji = 1, jpi |
---|
| 585 | wrkE(ji,1) = wrkE(ji,2) |
---|
| 586 | END DO |
---|
| 587 | |
---|
| 588 | |
---|
| 589 | !+++ Finalize pressure gradient/geostrophic wind computation |
---|
| 590 | IF(ln_hpg_frc) THEN |
---|
| 591 | DO jj=1,jpj |
---|
| 592 | DO ji=1,jpi |
---|
| 593 | IF (tmask2(ji,jj).GT.0.5) THEN |
---|
| 594 | uhpg(ji,jj,jk,1) = - grav*( wrkX(ji,jj) - 0.5*( dZx(ji,jj)+dZx(ji-1,jj ) ) ) |
---|
| 595 | if (lat(1).GT.0.) vhpg(ji,jj,jk,1) = grav*( wrkE(ji,jj) - 0.5*( dZe(ji,jj)+dZe(ji ,jj-1) ) ) |
---|
| 596 | if (lat(1).LT.0.) vhpg(ji,jj,jk,1) = - grav*( wrkE(ji,jj) - 0.5*( dZe(ji,jj)+dZe(ji ,jj-1) ) ) |
---|
| 597 | ELSE |
---|
| 598 | uhpg(ji,jj,jk,1) = 0. |
---|
| 599 | vhpg(ji,jj,jk,1) = 0. |
---|
| 600 | END IF |
---|
| 601 | END DO |
---|
| 602 | END DO |
---|
| 603 | ELSE |
---|
| 604 | DO jj=1,jpj |
---|
| 605 | DO ji=1,jpi |
---|
| 606 | IF (tmask2(ji,jj).GT.0.5) THEN |
---|
| 607 | cff = grav / ff_t(ji,jj) |
---|
| 608 | ! geostrophic wind computed only where Coriolis .ge. 3.e-5 (~12deg) |
---|
| 609 | if(abs(ff_t(ji,jj)) < 2.5e-5) cff = 0. |
---|
| 610 | ! minus sign for uhpg because y-derivatives are inverted |
---|
| 611 | vhpg(ji,jj,jk,1) = - cff*( wrkX(ji,jj) - 0.5*( dZx(ji,jj)+dZx(ji-1,jj ) ) ) |
---|
| 612 | if (lat(1).GT.0.) uhpg(ji,jj,jk,1) = - cff*( wrkE(ji,jj) - 0.5*( dZe(ji,jj)+dZe(ji ,jj-1) ) ) |
---|
| 613 | if (lat(1).LT.0.) uhpg(ji,jj,jk,1) = cff*( wrkE(ji,jj) - 0.5*( dZe(ji,jj)+dZe(ji ,jj-1) ) ) |
---|
| 614 | ELSE |
---|
| 615 | uhpg(ji,jj,jk,1) = 0. |
---|
| 616 | vhpg(ji,jj,jk,1) = 0. |
---|
| 617 | END IF |
---|
| 618 | END DO |
---|
| 619 | END DO |
---|
| 620 | ENDIF |
---|
| 621 | |
---|
| 622 | !//////////// |
---|
| 623 | END DO ! jk |
---|
| 624 | !//////////// |
---|
| 625 | |
---|
| 626 | IF (ln_geo_wnd) THEN |
---|
| 627 | CALL Write_Ncdf_var ( 'ugeo', dimnames(1:4), trim(out_file), uhpg, kt, 'float' ) |
---|
| 628 | CALL Write_Ncdf_var ( 'vgeo', dimnames(1:4), trim(out_file), vhpg, kt, 'float' ) |
---|
| 629 | ELSE |
---|
| 630 | CALL Write_Ncdf_var ( 'uhpg', dimnames(1:4), trim(out_file), uhpg, kt, 'float' ) |
---|
| 631 | CALL Write_Ncdf_var ( 'vhpg', dimnames(1:4), trim(out_file), vhpg, kt, 'float' ) |
---|
| 632 | END IF |
---|
| 633 | |
---|
| 634 | IF (kt .EQ. 1) THEN |
---|
| 635 | tmask2(:,1) = 0. ! force northern v line drowning |
---|
| 636 | tmask2(:,jpj) = 0. ! force northern v line drowning |
---|
| 637 | CALL Write_Ncdf_var( 'tmask', dimnames(1:2), trim(out_file), tmask2, 'float' ) |
---|
| 638 | END IF |
---|
| 639 | |
---|
| 640 | END DO ! kt |
---|
| 641 | ! |
---|
| 642 | DEALLOCATE( zsurf, zsurf_smth, slp, slp_smth, temp,humi,uhpg,vhpg) |
---|
| 643 | IF (jpka.NE.nhym) DEALLOCATE(tmp_fullw,tmp_fullm) |
---|
| 644 | ! |
---|
| 645 | STOP |
---|
| 646 | ! |
---|
| 647 | END PROGRAM main |
---|