| 1 | ! Module Furst Schoof |
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| 2 | |
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| 3 | module furst_schoof_mod |
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| 4 | |
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| 5 | use module3d_phy |
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| 6 | use deformation_mod_2lois |
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| 7 | |
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| 8 | implicit none |
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| 9 | |
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| 10 | real :: frot_coef |
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| 11 | real :: alpha_flot |
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| 12 | integer :: gr_select |
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| 13 | |
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| 14 | contains |
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| 15 | |
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| 16 | subroutine init_furst_schoof |
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| 17 | |
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| 18 | namelist/furst_schoof/frot_coef,gr_select |
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| 19 | |
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| 20 | rewind(num_param) ! pour revenir au debut du fichier param_list.dat |
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| 21 | read(num_param,furst_schoof) |
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| 22 | |
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| 23 | write(num_rep_42,*)'!___________________________________________________________' |
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| 24 | write(num_rep_42,*)'! module furst_schoof' |
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| 25 | write(num_rep_42,*) |
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| 26 | write(num_rep_42,*)'! frot_coef = ',frot_coef |
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| 27 | write(num_rep_42,*)'! gr_select = ',gr_select |
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| 28 | write(num_rep_42,*)'! frot_coef : solid friction law coef 0.035 in Ritz et al 2001' |
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| 29 | write(num_rep_42,*)'! gr_select = 1 : Tsai , 2 : Schoof' |
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| 30 | write(num_rep_42,*)'!___________________________________________________________' |
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| 31 | |
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| 32 | ! frot = 0.035 ! f in the solid friction law, 0.035 in Ritz et al. 2001 |
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| 33 | |
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| 34 | ! choix Tsai (loi de Coulomb) ou Schoof (loi de Weertman) |
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| 35 | alpha_flot= ro/row |
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| 36 | |
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| 37 | end subroutine init_furst_schoof |
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| 38 | |
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| 39 | subroutine interpol_glflux |
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| 40 | |
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| 41 | implicit none |
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| 42 | real :: xpos,ypos |
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| 43 | real :: Hgl |
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| 44 | ! integer :: igl |
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| 45 | |
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| 46 | real :: back_force_coef=0.1 !!!!!! TO DO !!!!!!!! |
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| 47 | |
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| 48 | real :: phi_im2, phi_im1, phi_i, phi_ip1, phi_ip2, phi_ip3 |
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| 49 | real :: phi_jm2, phi_jm1, phi_j, phi_jp1, phi_jp2, phi_jp3 |
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| 50 | real,dimension(nx,ny) :: phi_xgl, phi_ygl ! flux gr line sur maille stag |
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| 51 | integer,dimension(nx,ny) :: countx, county ! how often do we modify ux/uy |
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| 52 | real :: phi_prescr |
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| 53 | real :: archim |
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| 54 | real :: toutpetit = 1e-6 |
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| 55 | real :: denom, prodscal |
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| 56 | |
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| 57 | !debug |
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| 58 | real,dimension(nx,ny) :: xpos_tab=9999. |
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| 59 | real,dimension(nx,ny) :: ypos_tab=9999. |
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| 60 | real,dimension(nx,ny) :: Hglx_tab=9999. |
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| 61 | real,dimension(nx,ny) :: Hgly_tab=9999. |
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| 62 | real,dimension(nx,ny) :: Hmxloc, Hmyloc ! pour eviter division par 0 |
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| 63 | real,dimension(nx,ny) :: phi_prescr_tabx, phi_prescr_taby |
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| 64 | |
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| 65 | real,dimension(nx,ny) :: uxbartemp, uybartemp |
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| 66 | |
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| 67 | phi_prescr_tabx=0. |
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| 68 | phi_prescr_taby=0. |
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| 69 | |
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| 70 | Hmxloc(:,:)= max(Hmx(:,:),1.) |
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| 71 | Hmyloc(:,:)=max(Hmy(:,:),1.) |
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| 72 | |
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| 73 | uxbartemp(:,:)=0. |
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| 74 | uybartemp(:,:)=0. |
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| 75 | countx(:,:)=0. |
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| 76 | county(:,:)=0. |
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| 77 | |
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| 78 | ! detection des noeuds grounding line |
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| 79 | do j= 3,ny-3 |
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| 80 | do i=3,nx-3 |
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| 81 | archim = Bsoc(i,j)+H(i,j)*ro/row -sealevel |
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| 82 | if ((H(i,j).gt.0.).and.(archim.GE.0.).and.(Bsoc(i,j).LE.sealevel)) then ! grounded and with ice |
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| 83 | ! print*,'schoof gr line ij',i,j |
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| 84 | ! selon x (indice i) |
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| 85 | if (flot(i-1,j).and.Uxbar(i,j).LT.0.) then ! grounding line between i-1,i CAS WEST (ecoulement vers grille West) |
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| 86 | |
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| 87 | call calc_xgl4schoof(-dx,alpha_flot,H(i,j),Bsoc(i,j),H(i-1,j),Bsoc(i-1,j),Sealevel,xpos,Hgl) |
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| 88 | xpos_tab(i,j)=xpos |
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| 89 | Hglx_tab(i,j)=Hgl |
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| 90 | |
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| 91 | if (gr_select.eq.1) then ! flux de Tsai |
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| 92 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),back_force_coef,phi_prescr) |
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| 93 | else |
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| 94 | print*,'ATTENTION FLUX AUTRE QUE TSAI NON IMPLEMENTE' |
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| 95 | stop |
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| 96 | endif |
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| 97 | phi_prescr=-phi_prescr ! Doit être negatif dans le cas West |
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| 98 | phi_prescr_tabx(i,j)=phi_prescr |
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| 99 | |
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| 100 | if (xpos .lt. -dx/2.) then ! GL a west du i staggered, o centre, x stag |
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| 101 | |
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| 102 | ! grille ! .....x......o......x......o...G..x......O......x......o......x......o |
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| 103 | ! ! i-2 i-1 i i+1 i+2 |
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| 104 | !flux ! in out G out in |
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| 105 | |
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| 106 | |
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| 107 | |
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| 108 | ! extrapolation pour avoir uxbar(i-1,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 109 | |
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| 110 | phi_im2 = Uxbar(i-2,j) * Hmxloc(i-2,j) |
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| 111 | phi_xgl(i-1,j) = phi_im2 + dx * (phi_prescr-phi_im2)/(2.5 * dx + xpos) |
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| 112 | uxbartemp(i-1,j) = uxbartemp(i-1,j)+ phi_xgl(i-1,j) / Hmxloc(i-1,j) ! attention division par 0 possible ? |
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| 113 | countx (i-1,j) = countx(i-1,j)+1 |
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| 114 | imx_diag (i-1,j) = 1 |
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| 115 | |
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| 116 | ! extrapolation pour avoir uxbar(i,j) |
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| 117 | |
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| 118 | phi_ip1 = Uxbar(i+1,j) * Hmxloc(i+1,j) |
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| 119 | phi_xgl(i,j) = phi_ip1 + dx * (phi_prescr - phi_ip1)/(0.5 * dx - xpos) |
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| 120 | ! print*,'uxbar(i,j)=',uxbar(i,j) |
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| 121 | uxbartemp(i,j) = uxbartemp(i,j) + phi_xgl(i,j) / Hmxloc(i,j) |
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| 122 | countx (i,j) = countx(i,j)+1 |
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| 123 | imx_diag (i,j) = 1 |
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| 124 | ! print*,'schoof uxbar(i,j)=',uxbar(i,j) |
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| 125 | ! print*,'Hgl',Hgl |
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| 126 | ! print*,'phi_prescr',phi_prescr, phi_prescr/Hgl |
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| 127 | ! print* |
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| 128 | |
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| 129 | else ! GL a Est du i staggered, o centre, x stag |
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| 130 | |
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| 131 | ! grille ! .....x......o......x......o......x...G..O......x......o......x......o |
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| 132 | ! i-2 i-1 i i+1 i+2 |
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| 133 | !flux ! in in out G out in |
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| 134 | |
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| 135 | |
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| 136 | |
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| 137 | ! extrapolation pour avoir uxbar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 138 | |
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| 139 | phi_im1 = Uxbar(i-1,j) * Hmxloc(i-1,j) |
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| 140 | phi_xgl(i,j) = phi_im1 + dx * (phi_prescr-phi_im1)/(1.5 * dx + xpos) |
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| 141 | uxbartemp(i,j) = uxbartemp(i,j) + phi_xgl(i,j) / Hmxloc(i,j) ! attention division par 0 possible ? |
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| 142 | countx (i,j) = countx(i,j)+1 |
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| 143 | imx_diag (i,j) = 1 |
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| 144 | |
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| 145 | ! extrapolation pour avoir uxbar(i+1,j) |
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| 146 | |
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| 147 | phi_ip2 = Uxbar(i+2,j) * Hmxloc(i+2,j) |
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| 148 | phi_xgl(i+1,j) = phi_ip2 + dx * (phi_prescr - phi_ip2)/(1.5 * dx - xpos) |
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| 149 | uxbartemp(i+1,j) = uxbartemp(i+1,j) + phi_xgl(i+1,j) / Hmxloc(i+1,j) |
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| 150 | countx (i+1,j) = countx(i+1,j)+1 |
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| 151 | imx_diag (i+1,j) = 1 |
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| 152 | end if |
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| 153 | |
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| 154 | else if (flot(i+1,j).and.Uxbar(i+1,j).GT.0.) then ! grounding line between i,i+1 CAS EST (ecoulement vers grille Est) |
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| 155 | |
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| 156 | call calc_xgl4schoof(dx,alpha_flot,H(i,j),Bsoc(i,j),H(i+1,j),Bsoc(i+1,j),Sealevel,xpos,Hgl) |
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| 157 | xpos_tab(i,j)=xpos |
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| 158 | Hglx_tab(i,j)=Hgl |
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| 159 | if (gr_select.eq.1) then ! flux de Tsai |
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| 160 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),back_force_coef,phi_prescr) |
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| 161 | else |
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| 162 | print*,'ATTENTION FLUX AUTRE QUE TSAI NON IMPLEMENTE' |
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| 163 | stop |
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| 164 | endif |
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| 165 | phi_prescr_tabx(i,j)=phi_prescr |
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| 166 | if (xpos .lt. -dx/2.) then ! GL a west du i staggered, o centre, x stag |
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| 167 | |
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| 168 | ! grille ! .....x......o......x......o......x......O..G...x......o......x......o |
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| 169 | ! ! i-2 i-1 i i+1 i+2 |
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| 170 | !flux ! in out G out in |
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| 171 | |
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| 172 | |
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| 173 | ! extrapolation pour avoir uxbar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 174 | |
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| 175 | phi_im1 = Uxbar(i-1,j) * Hmxloc(i-1,j) |
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| 176 | phi_xgl(i,j) = phi_im1 + dx * (phi_prescr-phi_im1)/(1.5 * dx + xpos) |
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| 177 | uxbartemp(i,j) = uxbartemp(i,j) + phi_xgl(i,j) / Hmxloc(i,j) ! attention division par 0 possible ? |
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| 178 | countx (i,j) = countx(i,j)+1 |
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| 179 | imx_diag (i,j) = 1 |
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| 180 | |
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| 181 | ! extrapolation pour avoir uxbar(i+1,j) |
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| 182 | |
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| 183 | phi_ip2 = Uxbar(i+2,j) * Hmxloc(i+2,j) |
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| 184 | phi_xgl(i+1,j) = phi_ip2 + dx * (phi_prescr - phi_ip2)/(1.5* dx - xpos) |
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| 185 | uxbartemp(i+1,j) = uxbartemp(i+1,j) + phi_xgl(i+1,j) / Hmxloc(i+1,j) |
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| 186 | countx (i+1,j) = countx(i+1,j)+1 |
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| 187 | imx_diag (i+1,j) = 1 |
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| 188 | |
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| 189 | else ! GL a west du i staggered, o centre, x stag |
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| 190 | |
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| 191 | ! grille ! ......x......o......x......O......x...G..o......x......o......x.....o |
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| 192 | ! ! i-1 i i+1 i+2 i+3 |
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| 193 | !flux ! in out G out in |
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| 194 | |
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| 195 | |
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| 196 | ! extrapolation pour avoir uxbar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 197 | |
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| 198 | phi_i = Uxbar(i,j) * Hmxloc(i,j) |
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| 199 | phi_xgl(i+1,j) = phi_i + dx * (phi_prescr-phi_i)/(0.5 * dx + xpos) |
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| 200 | uxbartemp(i+1,j) = uxbartemp(i+1,j) + phi_xgl(i+1,j) / Hmxloc(i+1,j) ! attention division par 0 possible ? |
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| 201 | countx (i+1,j) = countx(i+1,j)+1 |
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| 202 | imx_diag (i+1,j) = 1 |
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| 203 | |
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| 204 | ! extrapolation pour avoir uxbar(i+1,j) |
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| 205 | |
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| 206 | phi_ip3 = Uxbar(i+3,j) * Hmxloc(i+3,j) |
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| 207 | phi_xgl(i+2,j) = phi_ip3 + dx * (phi_prescr - phi_ip3)/(2.5 * dx - xpos) |
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| 208 | uxbartemp(i+2,j) = uxbartemp(i+2,j) + phi_xgl(i+2,j) / Hmxloc(i+2,j) |
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| 209 | countx (i+2,j) = countx(i+2,j)+1 |
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| 210 | imx_diag (i+2,j) = 1 |
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| 211 | end if |
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| 212 | |
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| 213 | end if |
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| 214 | |
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| 215 | !******************************************************************************* |
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| 216 | ! selon y (indice j) |
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| 217 | if (flot(i,j-1).and.Uybar(i,j).LT.0.) then ! grounding line between j-1,j CAS SUD (ecoulement vers grille SUD) |
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| 218 | |
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| 219 | |
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| 220 | call calc_xgl4schoof(-dy,alpha_flot,H(i,j),Bsoc(i,j),H(i,j-1),Bsoc(i,j-1),Sealevel,ypos,Hgl) |
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| 221 | ypos_tab(i,j)=ypos |
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| 222 | Hgly_tab(i,j)=Hgl |
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| 223 | if (gr_select.eq.1) then ! flux de Tsai |
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| 224 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),back_force_coef,phi_prescr) |
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| 225 | else |
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| 226 | print*,'ATTENTION FLUX AUTRE QUE TSAI NON IMPLEMENTE' |
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| 227 | stop |
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| 228 | endif |
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| 229 | phi_prescr=-phi_prescr ! Doit être negatif dans le cas Sud |
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| 230 | phi_prescr_taby(i,j)=phi_prescr |
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| 231 | if (ypos .lt. -dy/2.) then ! GL au sud du j staggered, o centre, x stag |
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| 232 | |
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| 233 | ! grille ! .....x......o......x......o...G..x......O......x......o......x......o |
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| 234 | ! ! j-2 j-1 j j+1 j+2 |
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| 235 | !flux ! in out G out in |
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| 236 | |
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| 237 | |
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| 238 | ! extrapolation pour avoir uybar(i,j-1) qui sera ensuite prescrit dans call rempli_L2 |
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| 239 | |
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| 240 | phi_jm2 = Uybar(i,j-2) * Hmyloc(i,j-2) |
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| 241 | phi_ygl(i,j-1) = phi_jm2 + dy * (phi_prescr-phi_jm2)/(2.5 * dy + ypos) |
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| 242 | uybartemp(i,j-1) = uybartemp(i,j-1) + phi_ygl(i,j-1) / Hmyloc(i,j-1) ! attention division par 0 possible ? |
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| 243 | county (i,j-1) = county(i,j-1)+1 |
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| 244 | imy_diag (i-1,j) = 1 |
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| 245 | |
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| 246 | ! extrapolation pour avoir uybar(i,j) |
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| 247 | |
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| 248 | phi_jp1 = Uybar(i,j+1) * Hmyloc(i,j+1) |
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| 249 | phi_ygl(i,j) = phi_jp1 + dy * (phi_prescr - phi_jp1)/(0.5 * dy - ypos) |
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| 250 | uybartemp(i,j) = uybartemp(i,j) + phi_ygl(i,j) / Hmyloc(i,j) |
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| 251 | county (i,j) = county(i,j)+1 |
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| 252 | imy_diag (i,j) = 1 |
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| 253 | |
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| 254 | else ! GL au nord du j staggered, o centre, x stag |
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| 255 | |
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| 256 | ! grille ! .....x......o......x......o......x...G..O......x......o......x......o |
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| 257 | ! j-2 j-1 j j+1 j+2 |
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| 258 | !flux ! in in out G out in |
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| 259 | |
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| 260 | |
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| 261 | ! extrapolation pour avoir uybar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 262 | |
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| 263 | phi_jm1 = Uybar(i,j-1) * Hmyloc(i,j-1) |
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| 264 | phi_ygl(i,j) = phi_jm1 + dy * (phi_prescr-phi_jm1)/(1.5 * dy + ypos) |
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| 265 | uybartemp(i,j) = uybartemp(i,j) + phi_ygl(i,j) / Hmyloc(i,j) ! attention division par 0 possible ? |
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| 266 | county (i,j) = county(i,j)+1 |
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| 267 | imy_diag(i,j) = 1 |
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| 268 | |
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| 269 | ! extrapolation pour avoir uybar(i,j+1) |
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| 270 | |
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| 271 | phi_jp2 = Uybar(i,j+2) * Hmyloc(i,j+2) |
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| 272 | phi_ygl(i,j+1) = phi_jp2 + dy * (phi_prescr - phi_jp2)/(1.5 * dy - ypos) |
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| 273 | uybartemp(i,j+1) = uybartemp(i,j+1) + phi_ygl(i,j+1) / Hmyloc(i,j+1) |
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| 274 | county (i,j+1) = county(i,j+1)+1 |
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| 275 | imy_diag (i,j+1) = 1 |
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| 276 | end if |
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| 277 | |
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| 278 | else if (flot(i,j+1).and.Uybar(i,j+1).GT.0.) then ! grounding line between j,j+1 CAS NORD (ecoulement vers grille Nord) |
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| 279 | |
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| 280 | call calc_xgl4schoof(dy,alpha_flot,H(i,j),Bsoc(i,j),H(i,j+1),Bsoc(i,j+1),Sealevel,ypos,Hgl) |
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| 281 | ypos_tab(i,j)=ypos |
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| 282 | Hgly_tab(i,j)=Hgl |
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| 283 | if (gr_select.eq.1) then ! flux de Tsai |
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| 284 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),back_force_coef,phi_prescr) |
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| 285 | else |
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| 286 | print*,'ATTENTION FLUX AUTRE QUE TSAI NON IMPLEMENTE' |
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| 287 | stop |
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| 288 | endif |
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| 289 | phi_prescr_taby(i,j)=phi_prescr |
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| 290 | if (ypos .lt. -dy/2.) then ! GL au sud du j staggered, o centre, x stag |
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| 291 | |
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| 292 | ! grille ! .....x......o......x......o......x......O..G...x......o......x......o |
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| 293 | ! ! j-2 j-1 j j+1 j+2 |
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| 294 | !flux ! in out G out in |
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| 295 | |
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| 296 | |
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| 297 | ! extrapolation pour avoir uybar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 298 | |
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| 299 | phi_jm1 = Uybar(i,j-1) * Hmyloc(i,j-1) |
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| 300 | phi_ygl(i,j) = phi_jm1 + dy * (phi_prescr-phi_jm1)/(1.5 * dy + ypos) |
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| 301 | uybartemp(i,j) = uybartemp(i,j) + phi_ygl(i,j) / Hmyloc(i,j) ! attention division par 0 possible ? |
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| 302 | county (i,j) = county(i,j)+1 |
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| 303 | imy_diag (i,j) = 1 |
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| 304 | |
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| 305 | ! extrapolation pour avoir uybar(i,j+1) |
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| 306 | |
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| 307 | phi_jp2 = Uybar(i,j+2) * Hmyloc(i,j+2) |
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| 308 | phi_ygl(i,j+1) = phi_jp2 + dy * (phi_prescr - phi_jp2)/(1.5* dy - ypos) |
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| 309 | uybartemp(i,j+1) = uybartemp(i,j+1) + phi_ygl(i,j+1) / Hmyloc(i,j+1) |
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| 310 | county (i,j+1) = county(i,j+1)+1 |
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| 311 | imy_diag (i,j+1) = 1 |
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| 312 | |
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| 313 | else ! GL au nord du j staggered, o centre, x stag |
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| 314 | |
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| 315 | ! grille ! ......x......o......x......O......x...G..o......x......o......x.....o |
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| 316 | ! ! j-1 j j+1 j+2 j+3 |
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| 317 | !flux ! in out G out in |
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| 318 | |
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| 319 | |
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| 320 | ! extrapolation pour avoir uybar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 321 | |
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| 322 | phi_j = Uybar(i,j) * Hmyloc(i,j) |
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| 323 | phi_ygl(i,j+1) = phi_j + dy * (phi_prescr-phi_j)/(0.5 * dy + ypos) |
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| 324 | uybartemp(i,j+1) = uybartemp(i,j+1) + phi_ygl(i,j+1) / Hmyloc(i,j+1) ! attention division par 0 possible ? |
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| 325 | county (i,j+1) = county(i,j+1)+1 |
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| 326 | imy_diag (i,j+1) = 1 |
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| 327 | |
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| 328 | ! extrapolation pour avoir uybar(i,j+1) |
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| 329 | |
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| 330 | phi_jp3 = Uybar(i,j+3) * Hmyloc(i,j+3) |
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| 331 | phi_ygl(i,j+2) = phi_jp3 + dy * (phi_prescr - phi_jp3)/(2.5 * dy - ypos) |
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| 332 | uybartemp(i,j+2) = uybartemp(i,j+2) + phi_ygl(i,j+2) / Hmyloc(i,j+2) |
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| 333 | county (i,j+2) = county(i,j+2)+1 |
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| 334 | imy_diag (i,j+2) = 1 |
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| 335 | end if |
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| 336 | |
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| 337 | end if |
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| 338 | end if |
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| 339 | end do |
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| 340 | end do |
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| 341 | where (countx(:,:).ne.0) uxbar(:,:)=uxbartemp(:,:)/countx(:,:) |
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| 342 | where (county(:,:).ne.0) uybar(:,:)=uybartemp(:,:)/county(:,:) |
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| 343 | |
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| 344 | uxbar(:,:)= max(min(uxbar(:,:),V_limit),-V_limit) |
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| 345 | uybar(:,:)= max(min(uybar(:,:),V_limit),-V_limit) |
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| 346 | |
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| 347 | do j= 3,ny-3 |
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| 348 | do i=3,nx-3 |
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| 349 | denom = sqrt((uxbartemp(i,j)**2 + uybartemp(i,j)**2))*sqrt((uxbar(i,j)**2 + uybar(i,j)**2)) |
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| 350 | if (denom.gt.toutpetit) then |
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| 351 | ! prodscal is cos theta in : U . V = u v cos theta |
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| 352 | ! this number is between -1 and 1, 1 = same direction & -1 = opposite direction |
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| 353 | ! we could use this as an artificial back force... |
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| 354 | prodscal = (uxbartemp(i,j)*uxbar(i,j) + uybartemp(i,j)*uybar(i,j))/ & |
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| 355 | (sqrt((uxbartemp(i,j)**2 + uybartemp(i,j)**2))*sqrt((uxbar(i,j)**2 + uybar(i,j)**2))) |
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| 356 | endif |
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| 357 | end do |
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| 358 | end do |
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| 359 | |
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| 360 | !!$ do j=1,ny |
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| 361 | !!$ do i=1,nx |
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| 362 | !!$ write(598,*) xpos_tab(i,j) |
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| 363 | !!$ write(599,*) ypos_tab(i,j) |
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| 364 | !!$ write(600,*) Hglx_tab(i,j) |
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| 365 | !!$ write(601,*) Hgly_tab(i,j) |
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| 366 | !!$ write(602,*) Abar(i,j) |
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| 367 | !!$ write(603,*) phi_prescr_tabx(i,j)/Hglx_tab(i,j) |
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| 368 | !!$ write(604,*) phi_prescr_taby(i,j)/Hgly_tab(i,j) |
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| 369 | !!$ enddo |
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| 370 | !!$ enddo |
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| 371 | end subroutine interpol_glflux |
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| 372 | |
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| 373 | !------------------------------------------------------------------------- |
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| 374 | ! calcule la position sous maille de la ligne dechouage |
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| 375 | subroutine calc_xgl4schoof(dy,alpha,H_0,B_0,H_1,B_1,SL,xpos,Hgl) |
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| 376 | |
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| 377 | |
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| 378 | implicit none |
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| 379 | |
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| 380 | real,intent(in) :: dy !< longueur orientee de la maille |
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| 381 | real,intent(in) :: alpha !< coefficient de flottaison = rho/rhow |
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| 382 | real,intent(in) :: H_0 !< epaisseur au point pose |
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| 383 | real,intent(in) :: B_0 !< altitude socle au point pose |
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| 384 | real,intent(in) :: H_1 !< epaisseur au point flottant |
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| 385 | real,intent(in) :: B_1 !< altitude socle au point flottant |
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| 386 | real,intent(in) :: SL !< Sea level |
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| 387 | real,intent(out) :: xpos !< position de la ligne (en distance depuis le point pose) |
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| 388 | real,intent(out) :: Hgl !< Epaisseur de glace a la grounding line |
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| 389 | |
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| 390 | |
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| 391 | |
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| 392 | real :: Cgl ! variable de travail |
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| 393 | |
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| 394 | Cgl = (-alpha * (H_1-H_0) - (B_1-B_0)) ! -(rho/rhow (H1-H0) + (B1-B0)) |
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| 395 | |
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| 396 | if (abs(Cgl).gt.1.e-5) then |
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| 397 | xpos = (B_0 + alpha * H_0 - SL) / Cgl |
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| 398 | else |
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| 399 | xpos = 1. - 1./abs(dy) ! verifier |
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| 400 | end if |
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| 401 | |
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| 402 | if (xpos.LT.0..OR.xpos.GT.1.) then |
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| 403 | print*,'calc_xgl4schoof : xpos value error i,j=',i,j |
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| 404 | stop |
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| 405 | endif |
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| 406 | |
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| 407 | xpos = xpos * dy |
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| 408 | |
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| 409 | Hgl= H_0 + (H_1 - H_0) * xpos/dy |
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| 410 | |
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| 411 | end subroutine calc_xgl4schoof |
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| 412 | |
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| 413 | |
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| 414 | !-------------------------------------------------------------------- |
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| 415 | ! Schoof_flux : calcule le coefficient et le flux de Schoof |
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| 416 | !-------------------------------------------------------------------- |
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| 417 | |
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| 418 | ! Dans un premier temps, pas de terme horizontal (regarder dans toy_recul une tentative de confinement) |
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| 419 | |
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| 420 | subroutine flux_Schoof4Schoof (Hgl,A_mean,C_frot,alpha,n_glen,m_weert,back_force_coef,phi_schoof) |
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| 421 | |
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| 422 | |
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| 423 | implicit none |
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| 424 | |
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| 425 | real,intent(in) :: Hgl |
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| 426 | real,intent(in) :: A_mean |
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| 427 | real,intent(in) :: C_frot |
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| 428 | real,intent(in) :: alpha |
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| 429 | real,intent(in) :: n_glen |
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| 430 | real,intent(in) :: m_weert |
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| 431 | real,intent(in) :: back_force_coef |
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| 432 | real,intent(out) :: phi_schoof |
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| 433 | |
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| 434 | |
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| 435 | phi_schoof = ((A_mean * rog**(n_glen+1) * (1 - alpha)**n_glen) / (4**n_glen *C_frot)) **(1./(1.+1./m_weert)) |
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| 436 | phi_schoof = phi_schoof * Hgl**((n_glen+3.+1/m_weert)/(1.+1./m_weert)) |
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| 437 | |
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| 438 | |
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| 439 | |
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| 440 | end subroutine flux_Schoof4Schoof |
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| 441 | |
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| 442 | !-------------------------------------------------------------------- |
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| 443 | ! Tsai_flux : calcule le coefficient et le flux de Schoof |
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| 444 | !-------------------------------------------------------------------- |
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| 445 | |
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| 446 | ! Dans un premier temps, pas de terme horizontal (regarder dans toy_recul une tentative de confinement) |
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| 447 | |
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| 448 | subroutine flux_Tsai4Schoof (Hgl,A_mean,f_frot,alpha,n_glen,back_force_coef,phi_Tsai) |
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| 449 | |
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| 450 | implicit none |
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| 451 | |
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| 452 | real,intent(in) :: Hgl |
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| 453 | real,intent(in) :: A_mean |
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| 454 | real,intent(in) :: f_frot |
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| 455 | real,intent(in) :: alpha |
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| 456 | real,intent(in) :: n_glen |
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| 457 | real,intent(in) :: back_force_coef |
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| 458 | real,intent(out) :: phi_Tsai |
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| 459 | |
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| 460 | real, parameter :: Q0 = 0.61 |
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| 461 | |
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| 462 | |
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| 463 | phi_Tsai = Q0 * ((8 * A_mean * rog**(n_glen) * (1 - alpha)**(n_glen-1.)) / (4**n_glen *f_frot))*back_force_coef |
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| 464 | phi_Tsai = phi_Tsai * Hgl**(n_glen+2) |
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| 465 | |
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| 466 | end subroutine flux_Tsai4Schoof |
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| 467 | |
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| 468 | end module furst_schoof_mod |
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