[1] | 1 | ! |
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| 2 | ! $Header$ |
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| 3 | ! |
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| 4 | MODULE limit_read_mod |
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| 5 | ! |
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| 6 | ! This module reads the fichier "limit.nc" containing fields for surface forcing. |
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| 7 | ! |
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| 8 | ! Module subroutines : |
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| 9 | ! limit_read_frac : call limit_read_tot and return the fractions |
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| 10 | ! limit_read_rug_alb : return rugosity and albedo, if coupled ocean call limit_read_tot first |
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| 11 | ! limit_read_sst : return sea ice temperature |
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| 12 | ! limit_read_tot : read limit.nc and store the fields in local modules variables |
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| 13 | ! |
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| 14 | IMPLICIT NONE |
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| 15 | |
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| 16 | REAL, ALLOCATABLE, DIMENSION(:,:), SAVE, PRIVATE :: pctsrf |
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| 17 | !$OMP THREADPRIVATE(pctsrf) |
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| 18 | REAL, ALLOCATABLE, DIMENSION(:), SAVE, PRIVATE :: rugos |
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| 19 | !$OMP THREADPRIVATE(rugos) |
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| 20 | REAL, ALLOCATABLE, DIMENSION(:), SAVE, PRIVATE :: albedo |
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| 21 | !$OMP THREADPRIVATE(albedo) |
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| 22 | REAL, ALLOCATABLE, DIMENSION(:), SAVE, PRIVATE :: sst |
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| 23 | !$OMP THREADPRIVATE(sst) |
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| 24 | LOGICAL,SAVE :: read_continents=.FALSE. |
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| 25 | !$OMP THREADPRIVATE(read_continents) |
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| 26 | |
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| 27 | CONTAINS |
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| 28 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 29 | !! |
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| 30 | !! Public subroutines : |
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| 31 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 32 | |
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| 33 | SUBROUTINE limit_read_frac(itime, dtime, jour, pctsrf_new, is_modified) |
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| 34 | ! |
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| 35 | ! This subroutine is called from "change_srf_frac" for case of |
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| 36 | ! ocean=force or from ocean_slab_frac for ocean=slab. |
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| 37 | ! The fraction for all sub-surfaces at actual time step is returned. |
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| 38 | |
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| 39 | USE dimphy |
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| 40 | INCLUDE "indicesol.h" |
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| 41 | |
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| 42 | ! Input arguments |
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| 43 | !**************************************************************************************** |
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| 44 | INTEGER, INTENT(IN) :: itime ! time step |
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| 45 | INTEGER, INTENT(IN) :: jour ! current day |
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| 46 | REAL , INTENT(IN) :: dtime ! length of time step |
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| 47 | |
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| 48 | ! Output arguments |
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| 49 | !**************************************************************************************** |
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| 50 | REAL, DIMENSION(klon,nbsrf), INTENT(OUT) :: pctsrf_new ! sub surface fractions |
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| 51 | LOGICAL, INTENT(OUT) :: is_modified ! true if pctsrf is modified at this time step |
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| 52 | |
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| 53 | ! End declaration |
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| 54 | !**************************************************************************************** |
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| 55 | |
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| 56 | ! 1) Read file limit.nc |
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| 57 | CALL limit_read_tot(itime, dtime, jour, is_modified) |
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| 58 | |
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| 59 | ! 2) Return the fraction read in limit_read_tot |
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| 60 | pctsrf_new(:,:) = pctsrf(:,:) |
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| 61 | |
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| 62 | END SUBROUTINE limit_read_frac |
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| 63 | |
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| 64 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 65 | |
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| 66 | SUBROUTINE limit_read_rug_alb(itime, dtime, jour, & |
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| 67 | knon, knindex, & |
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| 68 | rugos_out, alb_out) |
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| 69 | ! |
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| 70 | ! This subroutine is called from surf_land_bucket. |
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| 71 | ! The flag "ok_veget" must can not be true. If coupled run, "ocean=couple" |
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| 72 | ! then this routine will call limit_read_tot. |
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| 73 | ! |
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| 74 | USE dimphy |
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| 75 | USE surface_data |
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| 76 | |
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| 77 | ! Input arguments |
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| 78 | !**************************************************************************************** |
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| 79 | INTEGER, INTENT(IN) :: itime ! numero du pas de temps courant |
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| 80 | INTEGER, INTENT(IN) :: jour ! jour a lire dans l'annee |
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| 81 | REAL , INTENT(IN) :: dtime ! pas de temps de la physique (en s) |
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| 82 | INTEGER, INTENT(IN) :: knon ! nomber of points on compressed grid |
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| 83 | INTEGER, DIMENSION(klon), INTENT(IN) :: knindex ! grid point number for compressed grid |
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| 84 | ! Output arguments |
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| 85 | !**************************************************************************************** |
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| 86 | REAL, DIMENSION(klon), INTENT(OUT) :: rugos_out |
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| 87 | REAL, DIMENSION(klon), INTENT(OUT) :: alb_out |
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| 88 | |
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| 89 | ! Local variables |
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| 90 | !**************************************************************************************** |
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| 91 | INTEGER :: i |
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| 92 | LOGICAL :: is_modified |
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| 93 | !**************************************************************************************** |
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| 94 | |
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| 95 | IF (type_ocean == 'couple') THEN |
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| 96 | ! limit.nc has not yet been read. Do it now! |
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| 97 | CALL limit_read_tot(itime, dtime, jour, is_modified) |
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| 98 | END IF |
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| 99 | |
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| 100 | DO i=1,knon |
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| 101 | rugos_out(i) = rugos(knindex(i)) |
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| 102 | alb_out(i) = albedo(knindex(i)) |
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| 103 | END DO |
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| 104 | |
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| 105 | END SUBROUTINE limit_read_rug_alb |
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| 106 | |
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| 107 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 108 | |
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| 109 | SUBROUTINE limit_read_sst(knon, knindex, sst_out) |
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| 110 | ! |
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| 111 | ! This subroutine returns the sea surface temperature already read from limit.nc. |
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| 112 | ! |
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| 113 | USE dimphy, ONLY : klon |
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| 114 | |
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| 115 | INTEGER, INTENT(IN) :: knon ! nomber of points on compressed grid |
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| 116 | INTEGER, DIMENSION(klon), INTENT(IN) :: knindex ! grid point number for compressed grid |
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| 117 | REAL, DIMENSION(klon), INTENT(OUT) :: sst_out |
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| 118 | |
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| 119 | INTEGER :: i |
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| 120 | |
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| 121 | DO i = 1, knon |
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| 122 | sst_out(i) = sst(knindex(i)) |
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| 123 | END DO |
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| 124 | |
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| 125 | END SUBROUTINE limit_read_sst |
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| 126 | |
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| 127 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 128 | !! |
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| 129 | !! Private subroutine : |
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| 130 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 131 | |
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| 132 | SUBROUTINE limit_read_tot(itime, dtime, jour, is_modified) |
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| 133 | ! |
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| 134 | ! Read everything needed from limit.nc |
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| 135 | ! |
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| 136 | ! 0) Initialize |
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| 137 | ! 1) Open the file limit.nc, if it is time |
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| 138 | ! 2) Read fraction, if not type_ocean=couple |
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| 139 | ! 3) Read sea surface temperature, if not type_ocean=couple |
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| 140 | ! 4) Read albedo and rugosity for land surface, only in case of no vegetation model |
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| 141 | ! 5) Close file and distribuate variables to all processus |
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| 142 | |
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| 143 | USE dimphy |
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| 144 | USE mod_grid_phy_lmdz |
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| 145 | USE mod_phys_lmdz_para |
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| 146 | USE surface_data, ONLY : type_ocean, ok_veget |
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| 147 | USE netcdf |
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| 148 | |
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| 149 | IMPLICIT NONE |
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| 150 | |
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| 151 | INCLUDE "indicesol.h" |
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| 152 | |
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| 153 | ! In- and ouput arguments |
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| 154 | !**************************************************************************************** |
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| 155 | INTEGER, INTENT(IN) :: itime ! numero du pas de temps courant |
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| 156 | INTEGER, INTENT(IN) :: jour ! jour a lire dans l'annee |
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| 157 | REAL , INTENT(IN) :: dtime ! pas de temps de la physique (en s) |
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| 158 | |
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| 159 | LOGICAL, INTENT(OUT) :: is_modified ! true if pctsrf is modified at this time step |
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| 160 | |
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| 161 | ! Locals variables with attribute SAVE |
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| 162 | !**************************************************************************************** |
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| 163 | ! frequence de lecture des conditions limites (en pas de physique) |
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| 164 | INTEGER,SAVE :: lmt_pas |
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| 165 | !$OMP THREADPRIVATE(lmt_pas) |
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| 166 | LOGICAL, SAVE :: first_call=.TRUE. |
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| 167 | !$OMP THREADPRIVATE(first_call) |
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| 168 | ! Locals variables |
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| 169 | !**************************************************************************************** |
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| 170 | INTEGER :: nid, nvarid |
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| 171 | INTEGER :: ii, ierr |
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| 172 | INTEGER, DIMENSION(2) :: start, epais |
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| 173 | REAL, DIMENSION(klon_glo,nbsrf) :: pct_glo ! fraction at global grid |
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| 174 | REAL, DIMENSION(klon_glo) :: sst_glo ! sea-surface temperature at global grid |
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| 175 | REAL, DIMENSION(klon_glo) :: rug_glo ! rugosity at global grid |
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| 176 | REAL, DIMENSION(klon_glo) :: alb_glo ! albedo at global grid |
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| 177 | CHARACTER(len=20) :: modname='limit_read_mod' |
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| 178 | |
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| 179 | ! End declaration |
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| 180 | !**************************************************************************************** |
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| 181 | |
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| 182 | !**************************************************************************************** |
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| 183 | ! 0) Initialization |
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| 184 | ! |
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| 185 | !**************************************************************************************** |
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| 186 | IF (first_call) THEN |
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| 187 | ! calculate number of time steps for one day |
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| 188 | lmt_pas = NINT(86400./dtime * 1.0) |
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| 189 | |
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| 190 | ! Allocate module save variables |
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| 191 | IF ( type_ocean /= 'couple' ) THEN |
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| 192 | ALLOCATE(pctsrf(klon,nbsrf), sst(klon), stat=ierr) |
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| 193 | IF (ierr /= 0) CALL abort_gcm(modname, 'PB in allocating pctsrf and sst',1) |
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| 194 | END IF |
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| 195 | |
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| 196 | IF ( .NOT. ok_veget ) THEN |
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| 197 | ALLOCATE(rugos(klon), albedo(klon), stat=ierr) |
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| 198 | IF (ierr /= 0) CALL abort_gcm(modname, 'PB in allocating rugos and albedo',1) |
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| 199 | END IF |
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| 200 | |
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| 201 | first_call=.FALSE. |
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| 202 | ENDIF |
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| 203 | |
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| 204 | !**************************************************************************************** |
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| 205 | ! 1) Open the file limit.nc if it is the right moment to read, once a day. |
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| 206 | ! The file is read only by the master thread of the master mpi process(is_mpi_root) |
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| 207 | ! |
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| 208 | !**************************************************************************************** |
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| 209 | |
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| 210 | is_modified = .FALSE. |
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| 211 | IF (MOD(itime-1, lmt_pas) == 0) THEN ! time to read |
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| 212 | is_modified = .TRUE. |
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| 213 | !$OMP MASTER ! Only master thread |
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| 214 | IF (is_mpi_root) THEN ! Only master processus |
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| 215 | |
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| 216 | ierr = NF90_OPEN ('limit.nc', NF90_NOWRITE, nid) |
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| 217 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,& |
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| 218 | 'Pb d''ouverture du fichier de conditions aux limites',1) |
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| 219 | |
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| 220 | ! La tranche de donnees a lire: |
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| 221 | start(1) = 1 |
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| 222 | start(2) = jour |
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| 223 | epais(1) = klon_glo |
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| 224 | epais(2) = 1 |
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| 225 | |
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| 226 | |
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| 227 | !**************************************************************************************** |
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| 228 | ! 2) Read fraction if not type_ocean=couple |
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| 229 | ! |
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| 230 | !**************************************************************************************** |
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| 231 | |
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| 232 | IF ( type_ocean /= 'couple') THEN |
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| 233 | ! |
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| 234 | ! Ocean fraction |
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| 235 | ierr = NF90_INQ_VARID(nid, 'FOCE', nvarid) |
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| 236 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname, 'Le champ <FOCE> est absent',1) |
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| 237 | |
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| 238 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_oce),start,epais) |
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| 239 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <FOCE>' ,1) |
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| 240 | ! |
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| 241 | ! Sea-ice fraction |
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| 242 | ierr = NF90_INQ_VARID(nid, 'FSIC', nvarid) |
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| 243 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Le champ <FSIC> est absent',1) |
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| 244 | |
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| 245 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_sic),start,epais) |
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| 246 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <FSIC>' ,1) |
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| 247 | |
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| 248 | |
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| 249 | ! Read land and continentals fraction only if asked for |
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| 250 | IF (read_continents .OR. itime == 1) THEN |
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| 251 | ! |
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| 252 | ! Land fraction |
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| 253 | ierr = NF90_INQ_VARID(nid, 'FTER', nvarid) |
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| 254 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Le champ <FTER> est absent',1) |
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| 255 | |
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| 256 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_ter),start,epais) |
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| 257 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <FTER>',1) |
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| 258 | ! |
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| 259 | ! Continentale ice fraction |
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| 260 | ierr = NF90_INQ_VARID(nid, 'FLIC', nvarid) |
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| 261 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Le champ <FLIC> est absent',1) |
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| 262 | |
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| 263 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_lic),start,epais) |
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| 264 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <FLIC>',1) |
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| 265 | END IF |
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| 266 | |
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| 267 | END IF ! type_ocean /= couple |
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| 268 | |
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| 269 | !**************************************************************************************** |
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| 270 | ! 3) Read sea-surface temperature, if not coupled ocean |
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| 271 | ! |
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| 272 | !**************************************************************************************** |
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| 273 | IF ( type_ocean /= 'couple') THEN |
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| 274 | |
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| 275 | ierr = NF90_INQ_VARID(nid, 'SST', nvarid) |
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| 276 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Le champ <SST> est absent',1) |
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| 277 | |
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| 278 | ierr = NF90_GET_VAR(nid,nvarid,sst_glo,start,epais) |
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| 279 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <SST>',1) |
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| 280 | |
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| 281 | END IF |
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| 282 | |
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| 283 | !**************************************************************************************** |
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| 284 | ! 4) Read albedo and rugosity for land surface, only in case of no vegetation model |
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| 285 | ! |
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| 286 | !**************************************************************************************** |
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| 287 | |
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| 288 | IF (.NOT. ok_veget) THEN |
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| 289 | ! |
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| 290 | ! Read albedo |
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| 291 | ierr = NF90_INQ_VARID(nid, 'ALB', nvarid) |
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| 292 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Le champ <ALB> est absent',1) |
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| 293 | |
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| 294 | ierr = NF90_GET_VAR(nid,nvarid,alb_glo,start,epais) |
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| 295 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <ALB>',1) |
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| 296 | ! |
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| 297 | ! Read rugosity |
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| 298 | ierr = NF90_INQ_VARID(nid, 'RUG', nvarid) |
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| 299 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Le champ <RUG> est absent',1) |
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| 300 | |
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| 301 | ierr = NF90_GET_VAR(nid,nvarid,rug_glo,start,epais) |
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| 302 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Lecture echouee pour <RUG>',1) |
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| 303 | |
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| 304 | END IF |
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| 305 | |
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| 306 | !**************************************************************************************** |
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| 307 | ! 5) Close file and distribuate variables to all processus |
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| 308 | ! |
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| 309 | !**************************************************************************************** |
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| 310 | ierr = NF90_CLOSE(nid) |
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| 311 | IF (ierr /= NF90_NOERR) CALL abort_gcm(modname,'Pb when closing file', 1) |
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| 312 | ENDIF ! is_mpi_root |
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| 313 | |
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| 314 | !$OMP END MASTER |
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| 315 | !$OMP BARRIER |
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| 316 | |
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| 317 | IF ( type_ocean /= 'couple') THEN |
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| 318 | CALL Scatter(sst_glo,sst) |
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| 319 | CALL Scatter(pct_glo(:,is_oce),pctsrf(:,is_oce)) |
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| 320 | CALL Scatter(pct_glo(:,is_sic),pctsrf(:,is_sic)) |
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| 321 | IF (read_continents .OR. itime == 1) THEN |
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| 322 | CALL Scatter(pct_glo(:,is_ter),pctsrf(:,is_ter)) |
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| 323 | CALL Scatter(pct_glo(:,is_lic),pctsrf(:,is_lic)) |
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| 324 | END IF |
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| 325 | END IF |
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| 326 | |
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| 327 | IF (.NOT. ok_veget) THEN |
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| 328 | CALL Scatter(alb_glo, albedo) |
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| 329 | CALL Scatter(rug_glo, rugos) |
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| 330 | END IF |
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| 331 | |
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| 332 | ENDIF ! time to read |
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| 333 | |
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| 334 | END SUBROUTINE limit_read_tot |
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| 335 | |
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| 336 | |
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| 337 | END MODULE limit_read_mod |
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