| 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, only:nx,ny |
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| 6 | use deformation_mod_2lois, only: |
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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 ! afq: fixed in Tsai but = beta in Schoof (for m_weert = 1) |
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| 11 | real :: alpha_flot |
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| 12 | integer :: gr_select |
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| 13 | real,dimension(nx,ny) :: back_force_x |
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| 14 | real,dimension(nx,ny) :: back_force_y |
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| 15 | real, parameter :: m_weert = 1.0 ! afq: is this defined elsewhere in the model??? |
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| 16 | real, parameter :: inv_mweert = 1./m_weert |
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| 17 | |
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| 18 | contains |
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| 19 | |
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| 20 | subroutine init_furst_schoof |
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| 21 | |
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| 22 | use module3d_phy, only:num_param,num_rep_42 |
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| 23 | use param_phy_mod, only:row,ro |
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| 24 | |
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| 25 | implicit none |
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| 26 | |
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| 27 | namelist/furst_schoof/frot_coef,gr_select |
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| 28 | |
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| 29 | rewind(num_param) ! pour revenir au debut du fichier param_list.dat |
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| 30 | read(num_param,furst_schoof) |
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| 31 | write(num_rep_42,'(A)')'!___________________________________________________________' |
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| 32 | write(num_rep_42,'(A)') '&furst_schoof ! nom du bloc ' |
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| 33 | write(num_rep_42,*) |
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| 34 | write(num_rep_42,*)'frot_coef = ',frot_coef |
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| 35 | write(num_rep_42,*)'gr_select = ',gr_select |
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| 36 | write(num_rep_42,*)'/' |
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| 37 | write(num_rep_42,*)'! frot_coef : solid friction law coef 0.6 in GMD 2018' |
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| 38 | write(num_rep_42,*)'! gr_select = 1 : Tsai , 2 : Schoof' |
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| 39 | |
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| 40 | ! frot = 0.035 ! f in the solid friction law, 0.035 in Ritz et al. 2001 |
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| 41 | |
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| 42 | ! choix Tsai (loi de Coulomb) ou Schoof (loi de Weertman) |
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| 43 | alpha_flot= ro/row |
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| 44 | back_force_x(:,:)=0.1 |
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| 45 | back_force_y(:,:)=0.1 |
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| 46 | |
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| 47 | end subroutine init_furst_schoof |
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| 48 | |
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| 49 | subroutine interpol_glflux |
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| 50 | |
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| 51 | use module3d_phy, only:hmx,hmy,gr_line_schoof,Bsoc,H,sealevel_2d,imx_diag,imy_diag,& |
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| 52 | uxbar,uybar,flot_marais,dx,dy,Abar,betamx,betamy,V_limit,debug_3D |
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| 53 | use deformation_mod_2lois, only:glen |
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| 54 | |
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| 55 | implicit none |
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| 56 | |
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| 57 | integer :: i,j |
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| 58 | real :: xpos,ypos |
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| 59 | real :: Hgl |
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| 60 | ! integer :: igl |
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| 61 | |
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| 62 | real :: phi_im2, phi_im1, phi_i, phi_ip1, phi_ip2, phi_ip3 |
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| 63 | real :: phi_jm2, phi_jm1, phi_j, phi_jp1, phi_jp2, phi_jp3 |
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| 64 | real,dimension(nx,ny) :: phi_xgl, phi_ygl ! flux gr line sur maille stag |
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| 65 | integer,dimension(nx,ny) :: countx, county ! how often do we modify ux/uy |
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| 66 | real :: phi_prescr |
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| 67 | real :: toutpetit = 1e-6 |
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| 68 | real :: denom, prodscal |
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| 69 | |
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| 70 | real :: bfx, bfy |
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| 71 | |
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| 72 | !debug |
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| 73 | real,dimension(nx,ny) :: xpos_tab=9999. |
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| 74 | real,dimension(nx,ny) :: ypos_tab=9999. |
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| 75 | real,dimension(nx,ny) :: Hglx_tab=9999. |
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| 76 | real,dimension(nx,ny) :: Hgly_tab=9999. |
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| 77 | real,dimension(nx,ny) :: Hmxloc, Hmyloc ! pour eviter division par 0 |
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| 78 | real,dimension(nx,ny) :: phi_prescr_tabx, phi_prescr_taby |
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| 79 | |
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| 80 | real,dimension(nx,ny) :: uxbartemp, uybartemp |
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| 81 | |
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| 82 | real,dimension(nx,ny) :: archimtab |
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| 83 | |
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| 84 | real,dimension(nx,ny) :: imx_diag_in |
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| 85 | |
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| 86 | phi_prescr_tabx=0. |
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| 87 | phi_prescr_taby=0. |
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| 88 | |
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| 89 | Hmxloc(:,:)= max(Hmx(:,:),1.) |
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| 90 | Hmyloc(:,:)=max(Hmy(:,:),1.) |
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| 91 | |
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| 92 | uxbartemp(:,:)=0. |
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| 93 | uybartemp(:,:)=0. |
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| 94 | countx(:,:)=0. |
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| 95 | county(:,:)=0. |
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| 96 | gr_line_schoof(:,:)=0 |
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| 97 | |
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| 98 | archimtab(:,:) = Bsoc(:,:)+H(:,:)*alpha_flot -sealevel_2d(:,:) |
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| 99 | |
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| 100 | imx_diag_in(:,:) = imx_diag(:,:) |
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| 101 | |
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| 102 | ! detection des noeuds grounding line |
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| 103 | do j= 3,ny-3 |
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| 104 | do i=3,nx-3 |
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| 105 | !archim = Bsoc(i,j)+H(i,j)*ro/row -sealevel |
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| 106 | if ((H(i,j).gt.0.).and.(archimtab(i,j).GE.0.).and.(Bsoc(i,j).LE.sealevel_2d(i,j))) then ! grounded and with ice |
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| 107 | ! print*,'schoof gr line ij',i,j |
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| 108 | ! selon x (indice i) |
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| 109 | |
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| 110 | if (archimtab(i-1,j).LT.0..and.Uxbar(i,j).LT.0..and..not.flot_marais(i-1,j)) then |
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| 111 | !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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| 112 | |
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| 113 | call calc_xgl4schoof(-dx,alpha_flot,real(H(i,j)),real(Bsoc(i,j)),sealevel_2d(i,j),real(H(i-1,j)),real(Bsoc(i-1,j)),sealevel_2d(i-1,j),xpos,Hgl) |
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| 114 | xpos_tab(i,j)=xpos |
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| 115 | Hglx_tab(i,j)=Hgl |
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| 116 | |
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| 117 | ! afq: the back force is on the staggered grid, the GL can be either West or East to this point. |
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| 118 | if (xpos .lt. -dx/2.) then |
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| 119 | bfx = back_force_x(i,j) |
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| 120 | else |
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| 121 | bfx = back_force_x(i+1,j) |
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| 122 | endif |
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| 123 | if (gr_select.eq.1) then ! flux de Tsai |
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| 124 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),bfx,phi_prescr) |
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| 125 | else if (gr_select.eq.2) then ! flux de Schoof |
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| 126 | ! afq: the dragging coef. is on the staggered grid, the GL can be either West or East to this point. |
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| 127 | if (xpos .lt. -dx/2.) then |
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| 128 | frot_coef = betamx(i,j) |
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| 129 | else |
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| 130 | frot_coef = betamx(i+1,j) |
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| 131 | endif |
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| 132 | call flux_Schoof4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),m_weert,bfx,phi_prescr) |
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| 133 | else |
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| 134 | print*,'ATTENTION FLUX AUTRE QUE TSAI OU SCHOOF NON IMPLEMENTE' |
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| 135 | stop |
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| 136 | endif |
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| 137 | phi_prescr=-phi_prescr ! Doit être negatif dans le cas West |
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| 138 | phi_prescr_tabx(i,j)=phi_prescr |
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| 139 | |
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| 140 | if (xpos .lt. -dx/2.) then ! GL a west du i staggered, o centre, x stag |
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| 141 | |
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| 142 | ! grille ! .....x......o......x......o...G..x......O......x......o......x......o |
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| 143 | ! ! i-2 i-1 i i+1 i+2 |
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| 144 | !flux ! in out G out in |
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| 145 | |
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| 146 | |
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| 147 | !afq -- if (.not.(ilemx(i,j)).and..not.(ilemx(i-1,j))) then |
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| 148 | |
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| 149 | ! extrapolation pour avoir uxbar(i-1,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 150 | |
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| 151 | phi_im2 = Uxbar(i-2,j) * Hmxloc(i-2,j) |
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| 152 | phi_xgl(i-1,j) = phi_im2 + dx * (phi_prescr-phi_im2)/(2.5 * dx + xpos) |
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| 153 | 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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| 154 | countx (i-1,j) = countx(i-1,j)+1 |
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| 155 | imx_diag (i-1,j) = 1 |
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| 156 | gr_line_schoof(i-1,j) = 1 |
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| 157 | |
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| 158 | ! extrapolation pour avoir uxbar(i,j) |
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| 159 | |
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| 160 | phi_ip1 = Uxbar(i+1,j) * Hmxloc(i+1,j) |
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| 161 | phi_xgl(i,j) = phi_ip1 + dx * (phi_prescr - phi_ip1)/(0.5 * dx - xpos) |
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| 162 | ! print*,'uxbar(i,j)=',uxbar(i,j) |
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| 163 | uxbartemp(i,j) = uxbartemp(i,j) + phi_xgl(i,j) / Hmxloc(i,j) |
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| 164 | countx (i,j) = countx(i,j)+1 |
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| 165 | imx_diag (i,j) = 1 |
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| 166 | gr_line_schoof(i,j) = 1 |
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| 167 | ! print*,'schoof uxbar(i,j)=',uxbar(i,j) |
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| 168 | ! print*,'Hgl',Hgl |
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| 169 | ! print*,'phi_prescr',phi_prescr, phi_prescr/Hgl |
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| 170 | ! print* |
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| 171 | |
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| 172 | !afq -- end if |
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| 173 | |
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| 174 | else ! GL a Est du i staggered, o centre, x stag |
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| 175 | |
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| 176 | ! grille ! .....x......o......x......o......x...G..O......x......o......x......o |
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| 177 | ! i-2 i-1 i i+1 i+2 |
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| 178 | !flux ! in in out G out in |
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| 179 | |
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| 180 | !afq -- if (.not.(ilemx(i,j)).and..not.(ilemx(i+1,j))) then |
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| 181 | |
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| 182 | ! extrapolation pour avoir uxbar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 183 | |
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| 184 | phi_im1 = Uxbar(i-1,j) * Hmxloc(i-1,j) |
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| 185 | phi_xgl(i,j) = phi_im1 + dx * (phi_prescr-phi_im1)/(1.5 * dx + xpos) |
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| 186 | uxbartemp(i,j) = uxbartemp(i,j) + phi_xgl(i,j) / Hmxloc(i,j) ! attention division par 0 possible ? |
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| 187 | countx (i,j) = countx(i,j)+1 |
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| 188 | imx_diag (i,j) = 1 |
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| 189 | gr_line_schoof(i,j) = 1 |
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| 190 | |
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| 191 | ! extrapolation pour avoir uxbar(i+1,j) |
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| 192 | |
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| 193 | phi_ip2 = Uxbar(i+2,j) * Hmxloc(i+2,j) |
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| 194 | phi_xgl(i+1,j) = phi_ip2 + dx * (phi_prescr - phi_ip2)/(1.5 * dx - xpos) |
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| 195 | uxbartemp(i+1,j) = uxbartemp(i+1,j) + phi_xgl(i+1,j) / Hmxloc(i+1,j) |
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| 196 | countx (i+1,j) = countx(i+1,j)+1 |
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| 197 | imx_diag (i+1,j) = 1 |
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| 198 | gr_line_schoof(i+1,j) = 1 |
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| 199 | |
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| 200 | !afq -- end if |
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| 201 | |
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| 202 | end if |
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| 203 | |
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| 204 | else if (archimtab(i+1,j).LT.0..and.Uxbar(i+1,j).GT.0..and..not.flot_marais(i+1,j)) then |
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| 205 | !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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| 206 | |
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| 207 | call calc_xgl4schoof(dx,alpha_flot,real(H(i,j)),real(Bsoc(i,j)),sealevel_2d(i,j),real(H(i+1,j)),real(Bsoc(i+1,j)),sealevel_2d(i+1,j),xpos,Hgl) |
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| 208 | xpos_tab(i,j)=xpos |
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| 209 | Hglx_tab(i,j)=Hgl |
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| 210 | |
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| 211 | ! afq: the back force is on the staggered grid, the GL can be either West or East to this point. |
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| 212 | if (xpos .lt. dx/2.) then |
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| 213 | bfx = back_force_x(i,j) |
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| 214 | else |
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| 215 | bfx = back_force_x(i+1,j) |
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| 216 | endif |
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| 217 | if (gr_select.eq.1) then ! flux de Tsai |
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| 218 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),bfx,phi_prescr) |
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| 219 | else if (gr_select.eq.2) then ! flux de Schoof |
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| 220 | ! afq: the dragging coef. is on the staggered grid, the GL can be either West or East to this point. |
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| 221 | if (xpos .lt. dx/2.) then |
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| 222 | frot_coef = betamx(i,j) |
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| 223 | else |
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| 224 | frot_coef = betamx(i+1,j) |
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| 225 | endif |
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| 226 | call flux_Schoof4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),m_weert,bfx,phi_prescr) |
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| 227 | else |
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| 228 | print*,'ATTENTION FLUX AUTRE QUE TSAI OU SCHOOF NON IMPLEMENTE' |
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| 229 | stop |
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| 230 | endif |
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| 231 | phi_prescr_tabx(i,j)=phi_prescr |
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| 232 | if (xpos .lt. dx/2.) then ! GL a west du i staggered, o centre, x stag |
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| 233 | |
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| 234 | ! grille ! .....x......o......x......o......x......O..G...x......o......x......o |
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| 235 | ! ! i-2 i-1 i i+1 i+2 |
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| 236 | !flux ! in out G out in |
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| 237 | |
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| 238 | !afq -- if (.not.(ilemx(i,j)).and..not.(ilemx(i+1,j))) then |
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| 239 | |
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| 240 | ! extrapolation pour avoir uxbar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 241 | |
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| 242 | phi_im1 = Uxbar(i-1,j) * Hmxloc(i-1,j) |
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| 243 | phi_xgl(i,j) = phi_im1 + dx * (phi_prescr-phi_im1)/(1.5 * dx + xpos) |
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| 244 | uxbartemp(i,j) = uxbartemp(i,j) + phi_xgl(i,j) / Hmxloc(i,j) ! attention division par 0 possible ? |
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| 245 | countx (i,j) = countx(i,j)+1 |
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| 246 | imx_diag (i,j) = 1 |
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| 247 | gr_line_schoof(i,j) = 1 |
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| 248 | |
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| 249 | ! extrapolation pour avoir uxbar(i+1,j) |
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| 250 | |
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| 251 | phi_ip2 = Uxbar(i+2,j) * Hmxloc(i+2,j) |
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| 252 | phi_xgl(i+1,j) = phi_ip2 + dx * (phi_prescr - phi_ip2)/(1.5* dx - xpos) |
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| 253 | uxbartemp(i+1,j) = uxbartemp(i+1,j) + phi_xgl(i+1,j) / Hmxloc(i+1,j) |
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| 254 | countx (i+1,j) = countx(i+1,j)+1 |
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| 255 | imx_diag (i+1,j) = 1 |
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| 256 | gr_line_schoof(i+1,j) = 1 |
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| 257 | |
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| 258 | !afq -- end if |
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| 259 | |
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| 260 | else ! GL a west du i staggered, o centre, x stag |
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| 261 | |
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| 262 | ! grille ! ......x......o......x......O......x...G..o......x......o......x.....o |
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| 263 | ! ! i-1 i i+1 i+2 i+3 |
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| 264 | !flux ! in out G out in |
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| 265 | |
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| 266 | !afq -- if (.not.(ilemx(i+1,j)).and..not.(ilemx(i+2,j))) then |
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| 267 | |
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| 268 | ! extrapolation pour avoir uxbar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
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| 269 | |
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| 270 | phi_i = Uxbar(i,j) * Hmxloc(i,j) |
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| 271 | phi_xgl(i+1,j) = phi_i + dx * (phi_prescr-phi_i)/(0.5 * dx + xpos) |
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| 272 | 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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| 273 | countx (i+1,j) = countx(i+1,j)+1 |
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| 274 | imx_diag (i+1,j) = 1 |
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| 275 | gr_line_schoof(i+1,j) = 1 |
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| 276 | |
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| 277 | ! extrapolation pour avoir uxbar(i+1,j) |
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| 278 | |
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| 279 | phi_ip3 = Uxbar(i+3,j) * Hmxloc(i+3,j) |
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| 280 | phi_xgl(i+2,j) = phi_ip3 + dx * (phi_prescr - phi_ip3)/(2.5 * dx - xpos) |
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| 281 | uxbartemp(i+2,j) = uxbartemp(i+2,j) + phi_xgl(i+2,j) / Hmxloc(i+2,j) |
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| 282 | countx (i+2,j) = countx(i+2,j)+1 |
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| 283 | imx_diag (i+2,j) = 1 |
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| 284 | gr_line_schoof(i+2,j) = 1 |
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| 285 | |
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| 286 | !afq -- end if |
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| 287 | |
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| 288 | end if |
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| 289 | |
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| 290 | end if |
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| 291 | |
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| 292 | !******************************************************************************* |
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| 293 | ! selon y (indice j) |
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| 294 | if (archimtab(i,j-1).LT.0..and.Uybar(i,j).LT.0..and..not.flot_marais(i,j-1)) then |
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| 295 | !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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| 296 | |
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| 297 | |
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| 298 | call calc_xgl4schoof(-dy,alpha_flot,real(H(i,j)),real(Bsoc(i,j)),sealevel_2d(i,j),real(H(i,j-1)),real(Bsoc(i,j-1)),sealevel_2d(i,j-1),ypos,Hgl) |
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| 299 | ypos_tab(i,j)=ypos |
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| 300 | Hgly_tab(i,j)=Hgl |
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| 301 | |
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| 302 | ! afq: the back force is on the staggered grid, the GL can be either South or North to this point. |
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| 303 | if (ypos .lt. -dy/2.) then |
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| 304 | bfy = back_force_y(i,j) |
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| 305 | else |
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| 306 | bfy = back_force_y(i,j+1) |
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| 307 | endif |
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| 308 | if (gr_select.eq.1) then ! flux de Tsai |
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| 309 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),bfy,phi_prescr) |
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| 310 | else if (gr_select.eq.2) then ! flux de Schoof |
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| 311 | ! afq: the dragging coef. is on the staggered grid, the GL can be either South or North to this point. |
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| 312 | if (ypos .lt. -dy/2.) then |
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| 313 | frot_coef = betamy(i,j) |
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| 314 | else |
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| 315 | frot_coef = betamy(i,j+1) |
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| 316 | endif |
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| 317 | call flux_Schoof4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),m_weert,bfy,phi_prescr) |
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| 318 | else |
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| 319 | print*,'ATTENTION FLUX AUTRE QUE TSAI OU SCHOOF NON IMPLEMENTE' |
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| 320 | stop |
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| 321 | endif |
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| 322 | phi_prescr=-phi_prescr ! Doit être negatif dans le cas Sud |
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| 323 | phi_prescr_taby(i,j)=phi_prescr |
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| 324 | if (ypos .lt. -dy/2.) then ! GL au sud du j staggered, o centre, x stag |
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| 325 | |
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| 326 | ! grille ! .....x......o......x......o...G..x......O......x......o......x......o |
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| 327 | ! ! j-2 j-1 j j+1 j+2 |
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| 328 | !flux ! in out G out in |
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| 329 | |
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| 330 | !afq -- if (.not.(ilemy(i,j)).and..not.(ilemy(i,j-1))) then |
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| 331 | |
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| 332 | ! extrapolation pour avoir uybar(i,j-1) qui sera ensuite prescrit dans call rempli_L2 |
|---|
| 333 | |
|---|
| 334 | phi_jm2 = Uybar(i,j-2) * Hmyloc(i,j-2) |
|---|
| 335 | phi_ygl(i,j-1) = phi_jm2 + dy * (phi_prescr-phi_jm2)/(2.5 * dy + ypos) |
|---|
| 336 | uybartemp(i,j-1) = uybartemp(i,j-1) + phi_ygl(i,j-1) / Hmyloc(i,j-1) ! attention division par 0 possible ? |
|---|
| 337 | county (i,j-1) = county(i,j-1)+1 |
|---|
| 338 | imy_diag (i,j-1) = 1 |
|---|
| 339 | gr_line_schoof(i,j-1) = 1 |
|---|
| 340 | |
|---|
| 341 | ! extrapolation pour avoir uybar(i,j) |
|---|
| 342 | |
|---|
| 343 | phi_jp1 = Uybar(i,j+1) * Hmyloc(i,j+1) |
|---|
| 344 | phi_ygl(i,j) = phi_jp1 + dy * (phi_prescr - phi_jp1)/(0.5 * dy - ypos) |
|---|
| 345 | uybartemp(i,j) = uybartemp(i,j) + phi_ygl(i,j) / Hmyloc(i,j) |
|---|
| 346 | county (i,j) = county(i,j)+1 |
|---|
| 347 | imy_diag (i,j) = 1 |
|---|
| 348 | gr_line_schoof(i,j) = 1 |
|---|
| 349 | |
|---|
| 350 | |
|---|
| 351 | !afq -- end if |
|---|
| 352 | |
|---|
| 353 | else ! GL au nord du j staggered, o centre, x stag |
|---|
| 354 | |
|---|
| 355 | ! grille ! .....x......o......x......o......x...G..O......x......o......x......o |
|---|
| 356 | ! j-2 j-1 j j+1 j+2 |
|---|
| 357 | !flux ! in in out G out in |
|---|
| 358 | |
|---|
| 359 | !afq -- if (.not.(ilemy(i,j)).and..not.(ilemy(i,j+1))) then |
|---|
| 360 | |
|---|
| 361 | ! extrapolation pour avoir uybar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
|---|
| 362 | |
|---|
| 363 | phi_jm1 = Uybar(i,j-1) * Hmyloc(i,j-1) |
|---|
| 364 | phi_ygl(i,j) = phi_jm1 + dy * (phi_prescr-phi_jm1)/(1.5 * dy + ypos) |
|---|
| 365 | uybartemp(i,j) = uybartemp(i,j) + phi_ygl(i,j) / Hmyloc(i,j) ! attention division par 0 possible ? |
|---|
| 366 | county (i,j) = county(i,j)+1 |
|---|
| 367 | imy_diag(i,j) = 1 |
|---|
| 368 | gr_line_schoof(i,j) = 1 |
|---|
| 369 | |
|---|
| 370 | ! extrapolation pour avoir uybar(i,j+1) |
|---|
| 371 | |
|---|
| 372 | phi_jp2 = Uybar(i,j+2) * Hmyloc(i,j+2) |
|---|
| 373 | phi_ygl(i,j+1) = phi_jp2 + dy * (phi_prescr - phi_jp2)/(1.5 * dy - ypos) |
|---|
| 374 | uybartemp(i,j+1) = uybartemp(i,j+1) + phi_ygl(i,j+1) / Hmyloc(i,j+1) |
|---|
| 375 | county (i,j+1) = county(i,j+1)+1 |
|---|
| 376 | imy_diag (i,j+1) = 1 |
|---|
| 377 | gr_line_schoof(i,j+1) = 1 |
|---|
| 378 | |
|---|
| 379 | !afq -- end if |
|---|
| 380 | |
|---|
| 381 | end if |
|---|
| 382 | |
|---|
| 383 | else if (archimtab(i,j+1).LT.0..and.Uybar(i,j+1).GT.0..and..not.flot_marais(i,j+1)) then |
|---|
| 384 | !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) |
|---|
| 385 | |
|---|
| 386 | call calc_xgl4schoof(dy,alpha_flot,real(H(i,j)),real(Bsoc(i,j)),sealevel_2d(i,j),real(H(i,j+1)),real(Bsoc(i,j+1)),sealevel_2d(i,j+1),ypos,Hgl) |
|---|
| 387 | ypos_tab(i,j)=ypos |
|---|
| 388 | Hgly_tab(i,j)=Hgl |
|---|
| 389 | |
|---|
| 390 | ! afq: the back force is on the staggered grid, the GL can be either South or North to this point. |
|---|
| 391 | if (ypos .lt. dy/2.) then |
|---|
| 392 | bfy = back_force_y(i,j) |
|---|
| 393 | else |
|---|
| 394 | bfy = back_force_y(i,j+1) |
|---|
| 395 | endif |
|---|
| 396 | if (gr_select.eq.1) then ! flux de Tsai |
|---|
| 397 | call flux_Tsai4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),bfy,phi_prescr) |
|---|
| 398 | else if (gr_select.eq.2) then ! flux de Schoof |
|---|
| 399 | ! afq: the dragging coef. is on the staggered grid, the GL can be either South or North to this point. |
|---|
| 400 | if (ypos .lt. dy/2.) then |
|---|
| 401 | frot_coef = betamy(i,j) |
|---|
| 402 | else |
|---|
| 403 | frot_coef = betamy(i,j+1) |
|---|
| 404 | endif |
|---|
| 405 | call flux_Schoof4Schoof (Hgl,Abar(i,j),frot_coef,alpha_flot,glen(1),m_weert,bfy,phi_prescr) |
|---|
| 406 | else |
|---|
| 407 | print*,'ATTENTION FLUX AUTRE QUE TSAI OU SCHOOF NON IMPLEMENTE' |
|---|
| 408 | stop |
|---|
| 409 | endif |
|---|
| 410 | phi_prescr_taby(i,j)=phi_prescr |
|---|
| 411 | if (ypos .lt. dy/2.) then ! GL au sud du j staggered, o centre, x stag |
|---|
| 412 | |
|---|
| 413 | ! grille ! .....x......o......x......o......x......O..G...x......o......x......o |
|---|
| 414 | ! ! j-2 j-1 j j+1 j+2 |
|---|
| 415 | !flux ! in out G out in |
|---|
| 416 | |
|---|
| 417 | !afq -- if (.not.(ilemy(i,j)).and..not.(ilemy(i,j+1))) then |
|---|
| 418 | |
|---|
| 419 | ! extrapolation pour avoir uybar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
|---|
| 420 | |
|---|
| 421 | phi_jm1 = Uybar(i,j-1) * Hmyloc(i,j-1) |
|---|
| 422 | phi_ygl(i,j) = phi_jm1 + dy * (phi_prescr-phi_jm1)/(1.5 * dy + ypos) |
|---|
| 423 | uybartemp(i,j) = uybartemp(i,j) + phi_ygl(i,j) / Hmyloc(i,j) ! attention division par 0 possible ? |
|---|
| 424 | county (i,j) = county(i,j)+1 |
|---|
| 425 | imy_diag (i,j) = 1 |
|---|
| 426 | gr_line_schoof(i,j) = 1 |
|---|
| 427 | |
|---|
| 428 | ! extrapolation pour avoir uybar(i,j+1) |
|---|
| 429 | |
|---|
| 430 | phi_jp2 = Uybar(i,j+2) * Hmyloc(i,j+2) |
|---|
| 431 | phi_ygl(i,j+1) = phi_jp2 + dy * (phi_prescr - phi_jp2)/(1.5* dy - ypos) |
|---|
| 432 | uybartemp(i,j+1) = uybartemp(i,j+1) + phi_ygl(i,j+1) / Hmyloc(i,j+1) |
|---|
| 433 | county (i,j+1) = county(i,j+1)+1 |
|---|
| 434 | imy_diag (i,j+1) = 1 |
|---|
| 435 | gr_line_schoof(i,j+1) = 1 |
|---|
| 436 | |
|---|
| 437 | !afq -- end if |
|---|
| 438 | |
|---|
| 439 | else ! GL au nord du j staggered, o centre, x stag |
|---|
| 440 | |
|---|
| 441 | ! grille ! ......x......o......x......O......x...G..o......x......o......x.....o |
|---|
| 442 | ! ! j-1 j j+1 j+2 j+3 |
|---|
| 443 | !flux ! in out G out in |
|---|
| 444 | |
|---|
| 445 | !afq -- if (.not.(ilemy(i,j+1)).and..not.(ilemy(i,j+2))) then |
|---|
| 446 | |
|---|
| 447 | ! extrapolation pour avoir uybar(i,j) qui sera ensuite prescrit dans call rempli_L2 |
|---|
| 448 | |
|---|
| 449 | phi_j = Uybar(i,j) * Hmyloc(i,j) |
|---|
| 450 | phi_ygl(i,j+1) = phi_j + dy * (phi_prescr-phi_j)/(0.5 * dy + ypos) |
|---|
| 451 | uybartemp(i,j+1) = uybartemp(i,j+1) + phi_ygl(i,j+1) / Hmyloc(i,j+1) ! attention division par 0 possible ? |
|---|
| 452 | county (i,j+1) = county(i,j+1)+1 |
|---|
| 453 | imy_diag (i,j+1) = 1 |
|---|
| 454 | gr_line_schoof(i,j+1) = 1 |
|---|
| 455 | |
|---|
| 456 | ! extrapolation pour avoir uybar(i,j+1) |
|---|
| 457 | |
|---|
| 458 | phi_jp3 = Uybar(i,j+3) * Hmyloc(i,j+3) |
|---|
| 459 | phi_ygl(i,j+2) = phi_jp3 + dy * (phi_prescr - phi_jp3)/(2.5 * dy - ypos) |
|---|
| 460 | uybartemp(i,j+2) = uybartemp(i,j+2) + phi_ygl(i,j+2) / Hmyloc(i,j+2) |
|---|
| 461 | county (i,j+2) = county(i,j+2)+1 |
|---|
| 462 | imy_diag (i,j+2) = 1 |
|---|
| 463 | gr_line_schoof(i,j+2) = 1 |
|---|
| 464 | |
|---|
| 465 | !afq -- end if |
|---|
| 466 | |
|---|
| 467 | end if |
|---|
| 468 | |
|---|
| 469 | end if |
|---|
| 470 | end if |
|---|
| 471 | end do |
|---|
| 472 | end do |
|---|
| 473 | |
|---|
| 474 | ! afq -- if we discard the points with multiple fluxes coming, uncomment: |
|---|
| 475 | where (countx(:,:).ge.2) |
|---|
| 476 | uxbartemp(:,:)=uxbar(:,:)*countx(:,:) |
|---|
| 477 | imx_diag(:,:) = imx_diag_in(:,:) |
|---|
| 478 | end where |
|---|
| 479 | where (county(:,:).ge.2) |
|---|
| 480 | uybartemp(:,:)=uybar(:,:)*county(:,:) |
|---|
| 481 | imy_diag(:,:) = imx_diag_in(:,:) |
|---|
| 482 | end where |
|---|
| 483 | ! afq -- |
|---|
| 484 | |
|---|
| 485 | where (countx(:,:).ne.0) uxbar(:,:)= max(min(uxbartemp(:,:)/countx(:,:),V_limit),-V_limit) |
|---|
| 486 | where (county(:,:).ne.0) uybar(:,:)= max(min(uybartemp(:,:)/county(:,:),V_limit),-V_limit) |
|---|
| 487 | |
|---|
| 488 | do j= 3,ny-3 |
|---|
| 489 | do i=3,nx-3 |
|---|
| 490 | denom = sqrt((uxbartemp(i,j)**2 + uybartemp(i,j)**2))*sqrt((uxbar(i,j)**2 + uybar(i,j)**2)) |
|---|
| 491 | if (denom.gt.toutpetit) then |
|---|
| 492 | ! prodscal is cos theta in : U . V = u v cos theta |
|---|
| 493 | ! this number is between -1 and 1, 1 = same direction & -1 = opposite direction |
|---|
| 494 | ! we could use this as an artificial back force... |
|---|
| 495 | prodscal = (uxbartemp(i,j)*uxbar(i,j) + uybartemp(i,j)*uybar(i,j))/ & |
|---|
| 496 | (sqrt((uxbartemp(i,j)**2 + uybartemp(i,j)**2))*sqrt((uxbar(i,j)**2 + uybar(i,j)**2))) |
|---|
| 497 | endif |
|---|
| 498 | end do |
|---|
| 499 | end do |
|---|
| 500 | |
|---|
| 501 | !!$ do j=1,ny |
|---|
| 502 | !!$ do i=1,nx |
|---|
| 503 | !!$ write(598,*) xpos_tab(i,j) |
|---|
| 504 | !!$ write(599,*) ypos_tab(i,j) |
|---|
| 505 | !!$ write(600,*) Hglx_tab(i,j) |
|---|
| 506 | !!$ write(601,*) Hgly_tab(i,j) |
|---|
| 507 | !!$ write(602,*) Abar(i,j) |
|---|
| 508 | !!$ write(603,*) phi_prescr_tabx(i,j)/Hglx_tab(i,j) |
|---|
| 509 | !!$ write(604,*) phi_prescr_taby(i,j)/Hgly_tab(i,j) |
|---|
| 510 | !!$ enddo |
|---|
| 511 | !!$ enddo |
|---|
| 512 | |
|---|
| 513 | debug_3D(:,:,66) = phi_prescr_tabx(:,:) |
|---|
| 514 | debug_3D(:,:,67) = phi_prescr_taby(:,:) |
|---|
| 515 | |
|---|
| 516 | end subroutine interpol_glflux |
|---|
| 517 | |
|---|
| 518 | !------------------------------------------------------------------------- |
|---|
| 519 | ! calcule la position sous maille de la ligne dechouage |
|---|
| 520 | subroutine calc_xgl4schoof(dy,alpha,H_0,B_0,SL_0,H_1,B_1,SL_1,xpos,Hgl) |
|---|
| 521 | |
|---|
| 522 | implicit none |
|---|
| 523 | |
|---|
| 524 | integer :: i,j |
|---|
| 525 | real,intent(in) :: dy !< longueur orientee de la maille |
|---|
| 526 | real,intent(in) :: alpha !< coefficient de flottaison = rho/rhow |
|---|
| 527 | real,intent(in) :: H_0 !< epaisseur au point pose |
|---|
| 528 | real,intent(in) :: B_0 !< altitude socle au point pose |
|---|
| 529 | real,intent(in) :: SL_0 !< sea level au point pose |
|---|
| 530 | real,intent(in) :: H_1 !< epaisseur au point flottant |
|---|
| 531 | real,intent(in) :: B_1 !< altitude socle au point flottant |
|---|
| 532 | real,intent(in) :: SL_1 !< sea level au point flottant |
|---|
| 533 | real,intent(out) :: xpos !< position de la ligne (en distance depuis le point pose) |
|---|
| 534 | real,intent(out) :: Hgl !< epaisseur de glace a la grounding line |
|---|
| 535 | |
|---|
| 536 | |
|---|
| 537 | |
|---|
| 538 | real :: Cgl ! variable de travail |
|---|
| 539 | |
|---|
| 540 | !~ Cgl = (-alpha * (H_1-H_0) - (B_1-B_0)) ! -(rho/rhow (H1-H0) + (B1-B0)) |
|---|
| 541 | |
|---|
| 542 | !~ if (abs(Cgl).gt.1.e-5) then |
|---|
| 543 | !~ xpos = (B_0 + alpha * H_0 - SL) / Cgl |
|---|
| 544 | !~ else |
|---|
| 545 | !~ xpos = 1. - 1./abs(dy) ! verifier |
|---|
| 546 | !~ end if |
|---|
| 547 | |
|---|
| 548 | !~ if (xpos.LT.0..OR.xpos.GT.1.) then |
|---|
| 549 | !~ print*,'calc_xgl4schoof : xpos value error i,j=',i,j |
|---|
| 550 | !~ print*, 'xpos,Cgl', xpos,Cgl |
|---|
| 551 | !~ print*,'B_0, alpha, H_0, SL', B_0, alpha, H_0, SL |
|---|
| 552 | !~ stop |
|---|
| 553 | !~ endif |
|---|
| 554 | |
|---|
| 555 | Cgl = (B_1-B_0) + alpha * (H_1-H_0) - (SL_1-SL_0) |
|---|
| 556 | |
|---|
| 557 | if (abs(Cgl).gt.1.e-5) then |
|---|
| 558 | xpos = (SL_0 - (B_0 + alpha * H_0)) / Cgl |
|---|
| 559 | else |
|---|
| 560 | xpos = 0.5 ! verifier |
|---|
| 561 | end if |
|---|
| 562 | |
|---|
| 563 | ! print* |
|---|
| 564 | ! print*, 'xpos', xpos |
|---|
| 565 | ! print*,'B_0, alpha, H_0, SL', B_0, alpha, H_0, SL |
|---|
| 566 | ! print*,'B_1, H_1', B_1, H_1 |
|---|
| 567 | |
|---|
| 568 | |
|---|
| 569 | if (xpos.LT.0..OR.xpos.GT.1.) then |
|---|
| 570 | print*,'calc_xgl4schoof : xpos value error i,j=',i,j |
|---|
| 571 | print*, 'xpos,Cgl', xpos,Cgl |
|---|
| 572 | print*,'B_0, alpha, H_0, SL_0', B_0, alpha, H_0, SL_0 |
|---|
| 573 | print*,'archim=',B_1+H_1*alpha - SL_1 |
|---|
| 574 | !stop |
|---|
| 575 | xpos = min(max(0.,xpos),1.) |
|---|
| 576 | endif |
|---|
| 577 | |
|---|
| 578 | xpos = xpos * dy |
|---|
| 579 | |
|---|
| 580 | Hgl= H_0 + (H_1 - H_0) * xpos/dy |
|---|
| 581 | |
|---|
| 582 | end subroutine calc_xgl4schoof |
|---|
| 583 | |
|---|
| 584 | |
|---|
| 585 | !-------------------------------------------------------------------- |
|---|
| 586 | ! Schoof_flux : calcule le coefficient et le flux de Schoof |
|---|
| 587 | !-------------------------------------------------------------------- |
|---|
| 588 | |
|---|
| 589 | ! Dans un premier temps, pas de terme horizontal (regarder dans toy_recul une tentative de confinement) |
|---|
| 590 | |
|---|
| 591 | subroutine flux_Schoof4Schoof (Hgl,A_mean,C_frot,alpha,n_glen,m_weert,back_force_coef,phi_schoof) |
|---|
| 592 | |
|---|
| 593 | use param_phy_mod, only:rog |
|---|
| 594 | |
|---|
| 595 | implicit none |
|---|
| 596 | |
|---|
| 597 | real,intent(in) :: Hgl |
|---|
| 598 | real,intent(in) :: A_mean |
|---|
| 599 | real,intent(in) :: C_frot |
|---|
| 600 | real,intent(in) :: alpha |
|---|
| 601 | real,intent(in) :: n_glen |
|---|
| 602 | real,intent(in) :: m_weert |
|---|
| 603 | real,intent(in) :: back_force_coef |
|---|
| 604 | real,intent(out) :: phi_schoof |
|---|
| 605 | |
|---|
| 606 | ! afq: in standard GRISLI (19/05/17), tob= -beta ub => m_weert = 1 and C_frot = beta |
|---|
| 607 | |
|---|
| 608 | !phi_schoof = (((A_mean * rog**(n_glen+1) * (1 - alpha)**n_glen) / (4**n_glen *C_frot)) **(1./(1.+1./m_weert)))*back_force_coef**(n_glen/(1+1./m_weert)) |
|---|
| 609 | !phi_schoof = phi_schoof * Hgl**((n_glen+3.+1/m_weert)/(1.+1./m_weert)) |
|---|
| 610 | phi_schoof = (((A_mean * rog**(n_glen+1.) * (1. - alpha)**n_glen) / (4.**n_glen*C_frot)) **(1./(1.+inv_mweert)))*back_force_coef**(n_glen/(1.+inv_mweert)) |
|---|
| 611 | phi_schoof = phi_schoof * Hgl**((n_glen+3.+inv_mweert)/(1.+inv_mweert)) |
|---|
| 612 | |
|---|
| 613 | |
|---|
| 614 | |
|---|
| 615 | end subroutine flux_Schoof4Schoof |
|---|
| 616 | |
|---|
| 617 | !-------------------------------------------------------------------- |
|---|
| 618 | ! Tsai_flux : calcule le coefficient et le flux de Schoof |
|---|
| 619 | !-------------------------------------------------------------------- |
|---|
| 620 | |
|---|
| 621 | ! Dans un premier temps, pas de terme horizontal (regarder dans toy_recul une tentative de confinement) |
|---|
| 622 | |
|---|
| 623 | subroutine flux_Tsai4Schoof (Hgl,A_mean,f_frot,alpha,n_glen,back_force_coef,phi_Tsai) |
|---|
| 624 | |
|---|
| 625 | use param_phy_mod, only:rog |
|---|
| 626 | |
|---|
| 627 | implicit none |
|---|
| 628 | |
|---|
| 629 | real,intent(in) :: Hgl |
|---|
| 630 | real,intent(in) :: A_mean |
|---|
| 631 | real,intent(in) :: f_frot |
|---|
| 632 | real,intent(in) :: alpha |
|---|
| 633 | real,intent(in) :: n_glen |
|---|
| 634 | real,intent(in) :: back_force_coef |
|---|
| 635 | real,intent(out) :: phi_Tsai |
|---|
| 636 | |
|---|
| 637 | real, parameter :: Q0 = 0.61 |
|---|
| 638 | |
|---|
| 639 | |
|---|
| 640 | phi_Tsai = Q0 * ((8. * A_mean * rog**(n_glen) * (1. - alpha)**(n_glen-1.)) / (4.**n_glen *f_frot))*back_force_coef**(n_glen-1.) |
|---|
| 641 | phi_Tsai = phi_Tsai * Hgl**(n_glen+2.) |
|---|
| 642 | |
|---|
| 643 | end subroutine flux_Tsai4Schoof |
|---|
| 644 | |
|---|
| 645 | end module furst_schoof_mod |
|---|
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