| 1 | !> \file climat-forcage_mod-0.4.f90 |
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| 2 | !!Module pour le calcule du forcage climatique |
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| 3 | !< |
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| 4 | |
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| 5 | !> \namespace climat_forcage_mod |
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| 6 | !! Module pour le calcule du forcage climatique |
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| 7 | !! \author ... |
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| 8 | !! \date ... |
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| 9 | !! @note Used module |
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| 10 | !! @note - use module3D_phy |
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| 11 | !< |
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| 12 | module climat_forcage_mod |
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| 13 | |
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| 14 | ! declaration variables |
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| 15 | |
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| 16 | use module3d_phy |
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| 17 | |
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| 18 | implicit none |
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| 19 | character(len=80) :: filin |
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| 20 | integer :: nft !< nft est le nombre de lignes a lire dans le fichier |
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| 21 | !< contenant le forcage climatique |
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| 22 | real,dimension(:),allocatable :: tdate !< time for climate forcing |
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| 23 | real,dimension(:),allocatable :: alphat |
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| 24 | real,dimension(:),allocatable :: alphap |
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| 25 | real,dimension(:),allocatable :: spert |
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| 26 | |
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| 27 | |
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| 28 | real :: mincoefbmelt !< butoirs mini |
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| 29 | real :: maxcoefbmelt !< butoirs maxi de coefbmshelf |
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| 30 | character(len=25) :: forcage_file1 !< fichier de forcage 1 (climat) |
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| 31 | character(len=25) :: forcage_file2 !< fichier de forcage 2 |
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| 32 | |
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| 33 | |
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| 34 | integer,parameter :: ntr=2 !< nb of snapshot files now explicitely specified |
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| 35 | character(len=80) :: filtr(ntr) |
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| 36 | |
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| 37 | real ttr(ntr)!< la date des tranches (snapshots) (len=ntr) |
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| 38 | real delta(nx,ny,ntr),deltj(nx,ny,ntr),rapact(nx,ny,ntr) |
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| 39 | real deltatime(nx,ny),deltjtime(nx,ny),rapactime(nx,ny) |
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| 40 | |
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| 41 | contains |
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| 42 | |
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| 43 | !------------------------------------------------------------------------------------------ |
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| 44 | |
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| 45 | !> SUBROUTINE: input_clim |
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| 46 | !! Routine qui permet d'initialiser les variables climatiques |
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| 47 | !> |
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| 48 | |
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| 49 | subroutine input_clim !routine qui permet d'initialiser les variables climatiques |
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| 50 | |
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| 51 | implicit none |
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| 52 | character(len=8) :: control !label to check clim. forc. file (filin) is usable |
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| 53 | integer l !in snapshot files:the first column is the mask, read but not used |
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| 54 | |
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| 55 | deltatime(:,:)=0. |
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| 56 | deltjtime(:,:)=0. |
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| 57 | rapactime(:,:)=1. |
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| 58 | |
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| 59 | if (geoplace.eq.'heminor') then |
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| 60 | |
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| 61 | ! atmospheric temperature gradient |
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| 62 | tempgrad=0.008 |
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| 63 | tempgrjul=0.0065 |
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| 64 | |
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| 65 | |
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| 66 | !pour le nord cette partie est copiee de inputfile-hemicycle.f (3juin04) |
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| 67 | ! fichiers snapshots pour forcage |
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| 68 | !---------------------------------- |
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| 69 | filtr(1)=trim(dirnameinp)//'Snapshots-GCM/forclgm-lmd5prese.g50' |
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| 70 | filtr(2)=trim(dirnameinp)//'Snapshots-GCM/forclgm-lmd5futur.g50' |
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| 71 | |
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| 72 | ! fichiers donnant l'evolution temporelle |
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| 73 | |
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| 74 | ! this file contains tdate(i),alphat(i),alphap(i),spert(i),i=1,nft |
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| 75 | ! -------------------hemicycle ------------ |
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| 76 | ! lecture du fichier scalaire (sea level) |
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| 77 | ! filin=trim(dirnameinp)//'heminor-forclgm.dat' |
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| 78 | filin=trim(dirnameinp)//'signal-cycle-hemin.dat' |
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| 79 | |
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| 80 | elseif (geoplace.eq.'hemin40') then |
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| 81 | |
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| 82 | ! atmospheric temperature gradient |
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| 83 | tempgrad=0.008 |
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| 84 | tempgrjul=0.0065 |
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| 85 | |
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| 86 | ! fichiers snapshots pour forcage |
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| 87 | !---------------------------------- |
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| 88 | ! filtr(1)=trim(dirnameinp)//'Snapshots-GCM/forcage_hemin40-21k.g40' ! glaciaire std |
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| 89 | ! filtr(1)=trim(dirnameinp)//'Snapshots-GCM/file_regions_.g40' ! glaciaire regions vincent |
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| 90 | ! filtr(2)=trim(dirnameinp)//'Snapshots-GCM/file_regions_2.g40' ! pour glaciaire permanent |
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| 91 | ! filtr(2)=trim(dirnameinp)//'Snapshots-GCM/forclgm-reg_oc2-00k.g40' |
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| 92 | ! filtr(2)=trim(dirnameinp)//'Snapshots-GCM/no_forcage_hn40-0k.g40' ! climat act a 0ky |
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| 93 | ! filtr(2)=trim(dirnameinp)//'Snapshots-GCM/file_regions_2act.g40' ! pour climat act permanent |
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| 94 | |
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| 95 | !cdc forcage modele IPSL LSCE Cycle |
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| 96 | ! filtr(1)=TRIM(DIRNAMEINP)//'Snapshots-GCM/forcage_IPSL-21k.g40' |
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| 97 | ! filtr(2)=TRIM(DIRNAMEINP)//'Snapshots-GCM/no_forcage_hn40-0k.g40' !climat act a 0ka |
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| 98 | filtr(1)=TRIM(DIRNAMEINP)//'Snapshots-GCM/'//TRIM(forcage_file1) |
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| 99 | filtr(2)=TRIM(DIRNAMEINP)//'Snapshots-GCM/'//TRIM(forcage_file2) |
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| 100 | print*,'fichier de forcage 1',TRIM(DIRNAMEINP)//'Snapshots-GCM/'//TRIM(forcage_file1) |
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| 101 | print*,'fichier de forcage 2',TRIM(DIRNAMEINP)//'Snapshots-GCM/'//TRIM(forcage_file2) |
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| 102 | |
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| 103 | ! fichiers donnant l'evolution temporelle |
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| 104 | ! ----------------------------------------- |
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| 105 | filin=trim(dirforcage)//'signal-cycle-hemin.dat' |
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| 106 | |
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| 107 | else if ((geoplace.eq.'anteis1').or.(geoplace.eq.'ant20km')) then |
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| 108 | |
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| 109 | |
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| 110 | ! atmospheric temperature gradient |
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| 111 | tempgrad=0.0085 |
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| 112 | tempgrjul=0.0085 |
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| 113 | |
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| 114 | ! fichiers snapshots pour forcage |
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| 115 | !---------------------------------- |
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| 116 | filtr(1)='../input-data/Snapshots-GCM/forcage-ant-20k.g40' |
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| 117 | filtr(2)='../input-data/Snapshots-GCM/forcage-ant-00k.g40' |
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| 118 | print*,'lecture de ',filin,filtr |
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| 119 | ! fichiers donnant l'evolution temporelle |
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| 120 | ! ---------------------------- ------------ |
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| 121 | filin=trim(dirforcage)//'forcmodif4cycles.dat' !forcage vostok en rapport : a creer |
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| 122 | |
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| 123 | endif !fin du test sur geoplace |
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| 124 | |
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| 125 | ! lecture des fichiers snapsots pour n'importe quel geoplace |
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| 126 | ! ------------------------------------------------------------- |
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| 127 | write(6,*) 'fichiers snapshots' |
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| 128 | do k=1,ntr |
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| 129 | write(6,*) filtr(k) |
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| 130 | open(num_forc,file=filtr(k)) |
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| 131 | read(num_forc,*) ttr(k) |
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| 132 | read(num_forc,*) |
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| 133 | read(num_forc,*) |
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| 134 | do j=1,ny |
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| 135 | do i=1,nx |
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| 136 | read(num_forc,*) l,rapact(i,j,k),delta(i,j,k),deltj(i,j,k) |
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| 137 | end do |
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| 138 | end do |
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| 139 | close(num_forc) |
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| 140 | end do |
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| 141 | ttr(1)=-500000. !ttr est la date des tranches 3d-1.h |
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| 142 | ttr(2)=0 |
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| 143 | |
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| 144 | ! lecture des fichiers d'evolution pour tout geoplace |
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| 145 | ! ---------------------------------------------------- |
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| 146 | open(num_forc,file=filin,status='old') |
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| 147 | ! print*,nft |
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| 148 | read(num_forc,*) control,nft |
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| 149 | print*,'control',control,nft |
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| 150 | ! determination of file size (line nb), allocation of perturbation array |
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| 151 | |
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| 152 | if (control.ne.'nb_lines') then |
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| 153 | write(6,*) filin,'indiquer le nb de ligne en debut de fichier:' |
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| 154 | write(6,*) 'le nb de lignes et le label de control nb_lines' |
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| 155 | stop |
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| 156 | endif |
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| 157 | |
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| 158 | if (.not.allocated(tdate)) THEN |
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| 159 | allocate(tdate(nft),stat=err) |
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| 160 | if (err/=0) then |
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| 161 | print *,"erreur à l'allocation du tableau tdate",err |
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| 162 | stop 4 |
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| 163 | end if |
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| 164 | end if |
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| 165 | |
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| 166 | if (.not.allocated(alphat)) THEN |
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| 167 | allocate(alphat(nft),stat=err) |
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| 168 | if (err/=0) then |
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| 169 | print *,"erreur à l'allocation du tableau tpert",err |
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| 170 | stop 4 |
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| 171 | end if |
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| 172 | end if |
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| 173 | |
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| 174 | if (.not.allocated(alphap)) THEN |
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| 175 | allocate(alphap(nft),stat=err) |
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| 176 | if (err/=0) then |
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| 177 | print *,"erreur à l'allocation du tableau tpert",err |
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| 178 | stop 4 |
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| 179 | end if |
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| 180 | end if |
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| 181 | |
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| 182 | if (.not.allocated(spert)) THEN |
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| 183 | allocate(spert(nft),stat=err) |
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| 184 | if (err/=0) then |
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| 185 | print *,"erreur à l'allocation du tableau spert",err |
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| 186 | stop 4 |
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| 187 | end if |
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| 188 | end if |
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| 189 | |
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| 190 | do i=1,nft |
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| 191 | read(num_forc,*) tdate(i),alphat(i),alphap(i),spert(i) |
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| 192 | ! print*,tdate(i),alphat(i),alphap(i),spert(i) |
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| 193 | end do |
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| 194 | |
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| 195 | close(num_forc) |
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| 196 | |
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| 197 | |
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| 198 | end subroutine input_clim |
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| 199 | |
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| 200 | |
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| 201 | !-------------------------------------------------------------------------------- |
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| 202 | !> SUBROUTINE: init_forclim |
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| 203 | !! Initialisation des parametres du forcage climatique au cours du temps |
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| 204 | !> |
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| 205 | |
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| 206 | subroutine init_forclim |
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| 207 | |
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| 208 | |
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| 209 | namelist/clim_forcage/forcage_file1,forcage_file2,mincoefbmelt,maxcoefbmelt |
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| 210 | |
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| 211 | rewind(num_param) ! pour revenir au debut du fichier param_list.dat |
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| 212 | read(num_param,clim_forcage) |
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| 213 | |
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| 214 | |
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| 215 | ! formats pour les ecritures dans 42 |
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| 216 | 428 format(A) |
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| 217 | |
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| 218 | write(num_rep_42,428)'!___________________________________________________________' |
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| 219 | write(num_rep_42,428) '&clim_forcage ! nom du bloc ' |
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| 220 | write(num_rep_42,*) |
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| 221 | write(num_rep_42,*) 'forcage_file1 = ', forcage_file1 |
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| 222 | write(num_rep_42,*) 'forcage_file2 = ', forcage_file2 |
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| 223 | write(num_rep_42,*) 'mincoefbmelt = ', mincoefbmelt |
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| 224 | write(num_rep_42,*) 'maxcoefbmelt = ', maxcoefbmelt |
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| 225 | write(num_rep_42,*)'/' |
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| 226 | write(num_rep_42,*) |
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| 227 | return |
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| 228 | end subroutine init_forclim |
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| 229 | |
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| 230 | |
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| 231 | !--------------------------------------------------------------------- |
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| 232 | !> SUBROUTINE: forclim |
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| 233 | !! Routine pour le calcul du forcage climatique au cours du temps |
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| 234 | !> |
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| 235 | |
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| 236 | subroutine forclim |
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| 237 | |
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| 238 | implicit none |
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| 239 | real :: coeft,coefp,coeftime !coeftime is not used |
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| 240 | integer :: l !dumm index for loops on snapsots files l=itr,ntr-1 |
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| 241 | integer itr !nb of the current snapshot file (change with time) |
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| 242 | |
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| 243 | |
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| 244 | if(time.le.tdate(1)) then ! time avant le debut du fichier forcage |
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| 245 | sealevel=spert(1) |
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| 246 | coeft=alphat(1) |
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| 247 | coefp=alphap(1) |
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| 248 | ift=1 |
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| 249 | |
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| 250 | else if (time.ge.tdate(nft)) then ! time apres la fin du fichier forcage |
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| 251 | sealevel=spert(nft) |
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| 252 | coeft=alphat(nft) |
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| 253 | coefp=alphap(nft) |
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| 254 | ift=nft |
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| 255 | |
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| 256 | else ! time en general |
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| 257 | |
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| 258 | ift = 1 |
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| 259 | do i=ift,nft-1 ! interpolation entre i et i+1 |
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| 260 | |
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| 261 | if((time.ge.tdate(i)).and.(time.lt.tdate(i+1))) then ! cas general |
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| 262 | sealevel=spert(i)+(spert(i+1)-spert(i))* & |
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| 263 | (time-tdate(i))/(tdate(i+1)-tdate(i)) |
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| 264 | |
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| 265 | coeft=alphat(i)+(alphat(i+1)-alphat(i))* & |
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| 266 | (time-tdate(i))/(tdate(i+1)-tdate(i)) |
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| 267 | |
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| 268 | coefp=alphap(i)+(alphap(i+1)-alphap(i))* & |
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| 269 | (time-tdate(i))/(tdate(i+1)-tdate(i)) |
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| 270 | |
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| 271 | ! print*,'sea,coeft,coefp', sealevel,coeft,coefp |
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| 272 | ift=i |
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| 273 | goto 100 |
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| 274 | endif |
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| 275 | |
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| 276 | end do |
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| 277 | endif |
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| 278 | 100 continue |
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| 279 | |
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| 280 | ! print*,'coefft p',coeft,coefp |
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| 281 | !=forcage du climat |
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| 282 | |
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| 283 | if(time.le.ttr(1)) then ! time en dehors des limites du fichier forcage |
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| 284 | do j=1,ny |
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| 285 | do i=1,nx |
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| 286 | deltatime(i,j)=delta(i,j,1) |
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| 287 | deltjtime(i,j)=deltj(i,j,1) |
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| 288 | rapactime(i,j)=rapact(i,j,1) |
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| 289 | end do |
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| 290 | end do |
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| 291 | itr=1 |
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| 292 | |
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| 293 | else if (time.ge.ttr(ntr)) then ! mis a 0 |
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| 294 | do j=1,ny |
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| 295 | do i=1,nx |
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| 296 | deltatime(i,j)=delta(i,j,ntr) |
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| 297 | deltjtime(i,j)=deltj(i,j,ntr) |
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| 298 | rapactime(i,j)=rapact(i,j,ntr) |
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| 299 | end do |
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| 300 | end do |
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| 301 | itr=ntr |
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| 302 | |
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| 303 | else ! interpolation entre l et l+1 : cas general |
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| 304 | itr=max(itr,1) |
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| 305 | |
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| 306 | do l=itr,ntr-1 ! interpolation entre i et i+1 |
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| 307 | |
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| 308 | if((time.ge.ttr(l)).and.(time.lt.ttr(l+1))) then ! test tranche |
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| 309 | |
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| 310 | coeftime= (time-ttr(l))/(ttr(l+1)-ttr(l)) |
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| 311 | do j=1,ny |
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| 312 | do i=1,nx |
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| 313 | deltatime(i,j)=delta(i,j,l)+ & |
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| 314 | (delta(i,j,l+1)-delta(i,j,l))*coeft |
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| 315 | |
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| 316 | deltjtime(i,j)=deltj(i,j,l)+ & |
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| 317 | (deltj(i,j,l+1)-deltj(i,j,l))*coeft |
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| 318 | |
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| 319 | rapactime(i,j)=rapact(i,j,l)+ & |
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| 320 | (rapact(i,j,l+1)-rapact(i,j,l))*coefp |
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| 321 | end do |
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| 322 | end do |
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| 323 | itr=l |
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| 324 | goto 200 |
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| 325 | |
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| 326 | endif ! fin du test sur la tranche |
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| 327 | end do |
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| 328 | endif ! fin du test avant,apres,milieu |
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| 329 | |
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| 330 | 200 continue |
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| 331 | |
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| 332 | deltatime(:,:)=0. |
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| 333 | deltjtime(:,:)=0. |
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| 334 | rapactime(:,:)=1. |
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| 335 | |
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| 336 | coefbmshelf=1. ! modif pour test de sensibilite (tof 20 avril 01) |
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| 337 | coefbmshelf=max(coefbmshelf,mincoefbmelt) |
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| 338 | coefbmshelf=min(coefbmshelf,maxcoefbmelt) |
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| 339 | |
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| 340 | if (geoplace(1:5).eq.'hemin') then |
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| 341 | call accum7() |
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| 342 | |
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| 343 | else if ((geoplace.eq.'anteis1').or.(geoplace.eq.'ant20km')) then |
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| 344 | call massb_anteis_forcage() |
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| 345 | |
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| 346 | else |
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| 347 | print*,"partie en travaux climat forcage autre que sur heminord" |
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| 348 | print*,"geoplace ",geoplace |
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| 349 | endif |
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| 350 | |
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| 351 | |
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| 352 | seasea=sealevel ! pour des sorties |
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| 353 | |
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| 354 | end subroutine forclim |
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| 355 | |
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| 356 | end module climat_forcage_mod |
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