| 1 | !> \file precribe-H_mod.f90 |
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| 2 | !! |
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| 3 | !! Determine mask and thickness for prescription of H |
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| 4 | !! |
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| 5 | !< |
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| 6 | |
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| 7 | !> \namespace prescribe_H |
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| 8 | !! |
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| 9 | !! Determine mask and thickness for prescription of H |
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| 10 | !! |
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| 11 | !! \author CatRitz |
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| 12 | !! \date june 2009 |
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| 13 | !! |
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| 14 | !! @note use module3D_phy |
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| 15 | !! @note use param_phy_mod |
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| 16 | !< |
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| 17 | |
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| 18 | module prescribe_H |
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| 19 | |
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| 20 | use module3D_phy |
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| 21 | use param_phy_mod |
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| 22 | use interface_input |
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| 23 | implicit none |
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| 24 | real,dimension(nx,ny) :: Hp !< H value if prescribed |
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| 25 | real,dimension(nx,ny) :: Hp0 !< H value if prescribed (reference value) |
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| 26 | real,dimension(nx,ny) :: Delta_H !< Delta_H value if prescribed |
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| 27 | integer,dimension(nx,ny) :: i_delta_H !< 1 if Delta_H is prescribed on this node, else 0 |
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| 28 | integer,dimension(nx,ny) :: i_Hp !< 1 if H is prescribed on this node, else 0 |
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| 29 | integer,dimension(nx,ny) :: i_Hp0 !< i_hp mask reference value does not change with time |
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| 30 | integer,dimension(nx,ny) :: MK_gl0 !< mask grounding line initial |
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| 31 | integer,dimension(nx,ny) :: MK_flot0 !< mask float initial |
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| 32 | integer :: voisin !< work variable |
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| 33 | real (kind=kind(0.d0)) :: t_break !< temps : en double precision |
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| 34 | |
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| 35 | ! for prescribed grounding line retreat : ancienne version |
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| 36 | |
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| 37 | integer,parameter :: iretreat_max = 20 !< maximum number of retreat steps |
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| 38 | integer :: iretreat |
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| 39 | real (kind=kind(0.d0)),dimension(iretreat_max) :: time_gl !< time of the retreat steps |
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| 40 | integer, dimension(nx,ny) :: tag_gl !< tag of all the retreat points |
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| 41 | |
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| 42 | !< floating -> 10000 |
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| 43 | !< grounded not gl -> 1000 |
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| 44 | |
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| 45 | integer :: floating_tag = -10000 |
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| 46 | integer :: grounded_tag = 1000 |
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| 47 | |
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| 48 | |
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| 49 | integer, dimension(nx,ny) :: upwind_gl !< 1 if gl can still retreat, else 0 |
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| 50 | real, dimension(nx,ny) :: H_gl !< flotation thickness at the time |
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| 51 | real, dimension(nx,ny) :: dH_gl_dt !< to smoothly decrease ice thickness |
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| 52 | !< for next gl points |
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| 53 | |
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| 54 | ! nouvelle version recul grounding line pour ice2sea |
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| 55 | ! ------------------------------------------------------ |
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| 56 | |
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| 57 | ! real, dimension(nx,ny) :: H_gl !< flotation thickness at the time (deja declare autre version) |
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| 58 | real, dimension(nx,ny) :: H_beggin !< thickness when the point begins to be prescribed |
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| 59 | real, dimension(nx,ny) :: time_beggin !< time when the point begins to be prescribed |
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| 60 | real, dimension(nx,ny) :: time_just_grounded !< time when the point is just grounded |
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| 61 | |
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| 62 | contains |
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| 63 | |
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| 64 | !______________________________________________________________________________________ |
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| 65 | !> initialise prescribe H |
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| 66 | !! calculate the initial grounding line position |
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| 67 | !! @return MK_flot0 and Mk_gl0 |
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| 68 | |
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| 69 | subroutine init_prescribe_H |
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| 70 | |
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| 71 | implicit none |
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| 72 | if (itracebug.eq.1) call tracebug(' Entree dans routine init_prescribe_H') |
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| 73 | |
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| 74 | ! keep the mask of floating points |
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| 75 | where (flot(:,:)) |
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| 76 | MK_flot0(:,:)= 1 |
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| 77 | elsewhere |
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| 78 | MK_flot0(:,:)= 0 |
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| 79 | end where |
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| 80 | |
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| 81 | |
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| 82 | ! determine the initial grounding line |
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| 83 | |
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| 84 | MK_gl0(:,:)=0 |
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| 85 | HP0(:,:)=H0(:,:) |
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| 86 | |
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| 87 | |
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| 88 | do j=2,ny-1 |
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| 89 | do i=2,nx-1 |
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| 90 | voisin = MK_flot0(i-1,j) + MK_flot0(i+1,j) + MK_flot0(i,j-1) + MK_flot0(i,j+1) |
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| 91 | if ((MK_flot0(i,j).eq.0).and.(voisin.gt.0)) then ! grounded and at least one neighbour floating |
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| 92 | MK_gl0(i,j) = 1 ! tagged mask grounding line |
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| 93 | |
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| 94 | end if |
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| 95 | end do |
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| 96 | end do |
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| 97 | |
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| 98 | |
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| 99 | call prescribe_grid_boundary_0 |
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| 100 | |
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| 101 | !call init_prescribe_retreat |
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| 102 | time_gl(1)= 1000000 ! pour un run sans recul |
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| 103 | t_break = 1000000. ! pour un run avec ice shelves prescrits |
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| 104 | |
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| 105 | |
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| 106 | ! Dans le cas du Groenland ice2sea, mk_init = 3 -> noeuds qui ne bougent pas |
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| 107 | |
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| 108 | if (geoplace(1:4).eq.'GI2S') then |
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| 109 | |
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| 110 | do j = 1,ny |
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| 111 | do i = 1,nx |
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| 112 | if (mk_init(i,j).eq.3) then |
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| 113 | i_hp0 (i,j) = 1 |
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| 114 | Hp0 (i,j) = H0(i,j) |
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| 115 | endif |
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| 116 | end do |
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| 117 | end do |
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| 118 | end if |
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| 119 | |
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| 120 | |
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| 121 | |
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| 122 | end subroutine init_prescribe_H |
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| 123 | !______________________________________________________________________________________ |
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| 124 | !> function prescribe_present_H_gl |
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| 125 | !! calculate the initial grounding line position |
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| 126 | !! @return i_hp(:,:) and hp(:,:) |
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| 127 | |
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| 128 | subroutine prescribe_present_H_gl |
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| 129 | |
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| 130 | implicit none |
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| 131 | |
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| 132 | if (itracebug.eq.1) call tracebug(' Entree dans routine prescribe_present_H_gl') |
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| 133 | |
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| 134 | where ((MK_flot0(:,:).eq. 1).or.(MK_gl0(:,:) .eq. 1)) ! floating or grounding line |
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| 135 | i_hp(:,:) = 1 ! thickness prescribed to present value |
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| 136 | hp(:,:) = Hp0(:,:) |
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| 137 | end where |
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| 138 | |
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| 139 | |
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| 140 | end subroutine prescribe_present_H_gl |
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| 141 | |
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| 142 | !______________________________________________________________________________________ |
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| 143 | !> function prescribe_fixed_points |
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| 144 | !! fixes thickness for some points |
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| 145 | !! @return i_hp(:,:) and hp(:,:) |
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| 146 | |
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| 147 | subroutine prescribe_fixed_points |
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| 148 | |
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| 149 | where (i_hp0(:,:).eq.1) ! les points i_hp0 le sont pour tout le run |
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| 150 | i_hp(:,:) = i_hp0(:,:) |
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| 151 | Hp(:,:) = Hp0(:,:) |
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| 152 | end where |
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| 153 | end subroutine prescribe_fixed_points |
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| 154 | |
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| 155 | !______________________________________________________________________________________ |
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| 156 | !> function prescribe_paleo_gl_shelf |
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| 157 | !! calculate the grounding line thickness |
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| 158 | !! no ice shelves |
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| 159 | !! @return i_hp(:,:) and hp(:,:) |
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| 160 | |
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| 161 | subroutine prescribe_paleo_gl_shelf |
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| 162 | |
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| 163 | implicit none |
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| 164 | |
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| 165 | if (itracebug.eq.1) call tracebug(' Entree dans routine prescribe_present_H_gl') |
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| 166 | |
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| 167 | |
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| 168 | ! noeuds qui doivent être imposés |
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| 169 | |
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| 170 | where ((MK_flot0(:,:).eq. 1).or.(MK_gl0(:,:) .eq. 1)) ! floating or grounding line |
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| 171 | i_hp(:,:) = 1 ! thickness prescribed |
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| 172 | end where |
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| 173 | |
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| 174 | ! valeur imposee |
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| 175 | where (MK_flot0(:,:).eq. 1) ! paleo shelf epaisseur a 1 |
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| 176 | hp(:,:) = 1. |
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| 177 | end where |
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| 178 | |
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| 179 | |
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| 180 | where (MK_gl0(:,:) .eq. 1) |
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| 181 | hp(:,:) = (sealevel-Bsoc(:,:))*row/ro +1. |
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| 182 | end where |
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| 183 | |
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| 184 | |
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| 185 | end subroutine prescribe_paleo_gl_shelf |
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| 186 | |
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| 187 | |
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| 188 | !______________________________________________________________________________________ |
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| 189 | !> function prescribe_grid_boundary |
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| 190 | !! prescribe the grid boundary thickness to 0 |
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| 191 | !! @return i_hp(:,:) and hp(:,:) |
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| 192 | |
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| 193 | subroutine prescribe_grid_boundary_0 |
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| 194 | |
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| 195 | implicit none |
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| 196 | if (itracebug.eq.1) call tracebug(' Entree dans routine prescribe_grid_boundary_0') |
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| 197 | |
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| 198 | ! prescribe thickness on the grid boundaries |
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| 199 | i_hp(:,:) = 0 |
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| 200 | |
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| 201 | i_hp(1,:) = 1 |
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| 202 | i_hp(nx,:)= 1 |
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| 203 | hp(1,:) = 0 |
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| 204 | hp(nx,:) = 0 |
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| 205 | |
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| 206 | i_hp(:,1) = 1 |
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| 207 | i_hp(:,ny)= 1 |
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| 208 | hp(:,1) = 0 |
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| 209 | hp(:,ny) = 0 |
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| 210 | |
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| 211 | ! valeurs de reference |
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| 212 | i_hp0(1,:) = 1 |
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| 213 | i_hp0(nx,:) = 1 |
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| 214 | hp0(1,:) = 0 |
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| 215 | hp0(nx,:) = 0 |
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| 216 | |
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| 217 | i_hp0(:,1) = 1 |
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| 218 | i_hp0(:,ny) = 1 |
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| 219 | hp0(:,1) = 0 |
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| 220 | hp0(:,ny) = 0 |
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| 221 | |
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| 222 | |
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| 223 | |
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| 224 | |
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| 225 | end subroutine prescribe_grid_boundary_0 |
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| 226 | |
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| 227 | !______________________________________________________________________________________ |
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| 228 | !______________________________________________________________________________________ |
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| 229 | !> lecture of a prescribe field of delta H |
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| 230 | !! |
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| 231 | !! @return Delta_H, i_delta_H |
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| 232 | |
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| 233 | subroutine lect_prescribed_deltaH |
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| 234 | |
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| 235 | implicit none |
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| 236 | character(len=100) :: delta_H_file ! variation d'epaisseur imposee |
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| 237 | |
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| 238 | if (itracebug.eq.1) call tracebug(' Entree dans routine lect_prescribed_deltaH') |
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| 239 | if (itracebug.eq.1) call tracebug(' Attention ne dvrait pas passer par la') |
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| 240 | ! lecture |
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| 241 | delta_H_file = 'sensibxg-25km.dat' |
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| 242 | delta_H_file = trim(dirnameinp)//trim(delta_H_file) |
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| 243 | |
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| 244 | |
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| 245 | |
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| 246 | |
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| 247 | call lect_input(3,'Delta_H',1,Delta_H,delta_H_file,trim(dirnameinp)//trim(runname)//'.nc') |
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| 248 | !call lect_datfile(nx,ny,Delta_H,1,delta_H_file) |
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| 249 | |
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| 250 | do j=1,ny |
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| 251 | do i=1,nx |
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| 252 | if (Delta_H(i,j).ne.0.) then |
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| 253 | i_delta_H(i,j)=1 |
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| 254 | i_Hp(i,j)=1 ! i_delta_H might be not completely included in i_Hp |
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| 255 | Hp0(i,j) = H(i,j)-Delta_H(i,j) ! warning Delta_H is substracted |
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| 256 | |
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| 257 | if (MK_flot0(i,j).eq. 1) then ! si flotte, pas de changement d'epaisseur |
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| 258 | Hp0(i,j)=H0(i,j) |
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| 259 | else if (Hp0(i,j).lt. -Bsoc(i,j)*row/ro) then ! devient flottant |
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| 260 | Hp0(i,j) = -Bsoc(i,j)*row/ro-10. ! floating thickness - 10 |
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| 261 | MK_flot0(i,j)= 1 ! est tagge masque flottant |
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| 262 | end if |
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| 263 | Hp(i,j) = Hp0(i,j) |
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| 264 | else |
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| 265 | i_delta_H(i,j)=0 |
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| 266 | end if |
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| 267 | end do |
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| 268 | end do |
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| 269 | end subroutine lect_prescribed_deltaH |
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| 270 | |
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| 271 | !______________________________________________________________________________________ |
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| 272 | !> substract Delta_H to the current thickness |
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| 273 | !! |
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| 274 | !! @return |
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| 275 | subroutine prescribe_deltaH |
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| 276 | |
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| 277 | implicit none |
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| 278 | |
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| 279 | if (itracebug.eq.1) call tracebug(' Entree dans routine prescribe_deltaH') |
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| 280 | where (i_delta_H(:,:).eq.1) |
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| 281 | Hp(:,:) = Hp0(:,:) |
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| 282 | i_Hp(:,:)=1 |
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| 283 | end where |
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| 284 | end subroutine prescribe_deltaH |
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| 285 | !______________________________________________________________________________________ |
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| 286 | !> break ice shelves |
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| 287 | !! |
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| 288 | !! |
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| 289 | subroutine break_all_ice_shelves |
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| 290 | |
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| 291 | implicit none |
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| 292 | if (itracebug.eq.1) call tracebug(' Entree dans routine break_all_ice_shelves ') |
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| 293 | |
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| 294 | |
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| 295 | debug_3D(:,:,89)=0. |
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| 296 | |
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| 297 | where (flot(:,:)) ! floating from the beginning and eventually from grounding line retreat |
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| 298 | i_hp(:,:) = 1 ! thickness prescribed to 1 m |
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| 299 | hp (:,:) = 1. |
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| 300 | hp0 (:,:) = 1. |
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| 301 | H(:,:) =1. |
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| 302 | debug_3D(:,:,89)=1. |
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| 303 | |
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| 304 | end where |
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| 305 | where (MK_flot0(:,:).eq. 1) |
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| 306 | i_hp(:,:) = 1 ! thickness prescribed to 1 m |
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| 307 | hp (:,:) = 1. |
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| 308 | hp0 (:,:) = 1. |
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| 309 | H(:,:) =1. |
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| 310 | end where |
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| 311 | |
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| 312 | |
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| 313 | end subroutine break_all_ice_shelves |
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| 314 | |
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| 315 | ! |
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| 316 | !______________________________________________________________________________________ |
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| 317 | !> break ice shelves |
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| 318 | !! |
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| 319 | !! |
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| 320 | subroutine melt_ice_shelves |
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| 321 | |
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| 322 | implicit none |
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| 323 | integer :: nbvoisins,nbdeglac,iv,jv |
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| 324 | real :: hmoy,hmin,hmax |
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| 325 | |
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| 326 | if (itracebug.eq.1) call tracebug(' Entree dans routine melt_ice_shelves') |
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| 327 | |
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| 328 | do j = 2,ny-1 |
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| 329 | do i=2, nx-1 |
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| 330 | if (flot(i,j)) then ! floating |
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| 331 | i_hp(i,j) = 1 ! thickness prescribed |
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| 332 | hmoy=0. |
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| 333 | hmin=0. |
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| 334 | hmax=0. |
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| 335 | nbvoisins=0 |
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| 336 | nbdeglac=0 |
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| 337 | do jv=-1,1 |
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| 338 | do iv=1,1 |
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| 339 | if (flot(i+iv,j+jv)) then |
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| 340 | nbvoisins=nbvoisins+1 |
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| 341 | hmoy=hmoy+h(i+iv,j+jv) |
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| 342 | hmin=min(hmin,h(i+iv,j+jv)) |
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| 343 | hmax=max(hmax,h(i+iv,j+jv)) |
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| 344 | if (h(i+jv,j+jv).lt.10.) nbdeglac=nbdeglac+1 |
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| 345 | end if |
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| 346 | end do |
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| 347 | end do |
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| 348 | hmoy=hmoy/(max(nbvoisins,1)) |
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| 349 | |
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| 350 | if(H(i,j).gt.hmoy) then ! melt only if smooth |
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| 351 | hp(i,j)=H(i,j)-1.*dt |
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| 352 | else if (hmax-hmin.lt.10.) then |
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| 353 | hp(i,j)=H(i,j)-1.*dt |
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| 354 | else if ((H(i,j).lt.50.).and.(Hmin.lt.30.)) then |
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| 355 | hp(i,j)=1. |
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| 356 | else if ((H(i,j).lt.50.).and.(nbdeglac.ge.4)) then |
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| 357 | hp(i,j)=1. |
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| 358 | endif |
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| 359 | hp(i,j) = max(hp(i,j),1.) |
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| 360 | end if |
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| 361 | end do |
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| 362 | end do |
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| 363 | |
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| 364 | end subroutine melt_ice_shelves |
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| 365 | |
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| 366 | |
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| 367 | |
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| 368 | ! |
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| 369 | !______________________________________________________________________________________ |
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| 370 | !> prescribe grounding line retreat |
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| 371 | !! |
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| 372 | !! time_gl(iretreat_max) : times of the retreat steps (in) |
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| 373 | !! tag_gl(nx,ny) : tag that gives at which time a node is prescribed |
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| 374 | !! as a grounding line node |
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| 375 | !! @return Hp |
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| 376 | !! @return i_hp |
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| 377 | |
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| 378 | subroutine prescribe_retreat |
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| 379 | |
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| 380 | implicit none |
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| 381 | integer, dimension(nx,ny) :: new_tag ! working array |
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| 382 | |
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| 383 | if (itracebug.eq.1) call tracebug(' Entree dans routine prescribe_retreat') |
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| 384 | if (itracebug.eq.1) write(num_tracebug,*) 'time_gl(1)=', time_gl(1) |
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| 385 | |
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| 386 | new_tag(:,:) = tag_gl(:,:) ! initialize new_tag |
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| 387 | |
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| 388 | start_time: if (time.lt.time_gl(1)) then ! before the perturbation |
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| 389 | |
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| 390 | if (itracebug.eq.1) call tracebug(' Avant appel prescribe_present_H_gl') |
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| 391 | |
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| 392 | else |
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| 393 | if (itracebug.eq.1) call tracebug('avant entree step_gl') |
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| 394 | |
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| 395 | iretreat_loop: do iretreat = 1,iretreat_max-1 |
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| 396 | |
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| 397 | if (itracebug.eq.1) write(num_tracebug,*) 'iretreat',iretreat |
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| 398 | |
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| 399 | find_step: if (abs(time-time_gl(iretreat)).lt.dtmin/2.) then |
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| 400 | ! exactly on a retreat step |
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| 401 | ! write(6,*) time, 'sur un step',iretreat |
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| 402 | |
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| 403 | where (tag_gl(:,:).eq.iretreat) |
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| 404 | H_gl(:,:) = -Bsoc(:,:)*row/ro ! flotation thickness |
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| 405 | Hp(:,:) = H_gl(:,:)+5. ! +5 to be sure to be grounded |
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| 406 | ! even with small isostatic changes |
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| 407 | i_Hp(:,:) = 1 |
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| 408 | |
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| 409 | elsewhere (tag_gl(:,:).eq.iretreat+1) ! points that will be gl at next step |
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| 410 | |
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| 411 | H_gl(:,:) = -Bsoc(:,:)*row/ro ! flotation thickness |
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| 412 | dH_gl_dt(:,:) = (H(:,:)-H_gl(:,:))-5. ! thickness to be reduced to reach gl |
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| 413 | dH_gl_dt(:,:) = dH_gl_dt(:,:) / (time_gl(iretreat+1)-time_gl(iretreat)) |
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| 414 | ! rate of decrease |
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| 415 | |
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| 416 | elsewhere ((tag_gl(:,:).eq.iretreat-1).and. & ! points that become floating |
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| 417 | (upwind_gl(:,:).eq.1)) |
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| 418 | |
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| 419 | H_gl(:,:) = -Bsoc(:,:)*row/ro ! flotation thickness |
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| 420 | Hp(:,:) = H_gl(:,:)-10. ! to be sure to be floating |
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| 421 | i_Hp(:,:) = 1 |
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| 422 | new_tag(:,:) = floating_tag |
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| 423 | |
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| 424 | end where |
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| 425 | |
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| 426 | ! pour une raison mysterieuse la boucle suivante marche et celle en where ne marche pas |
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| 427 | ! (memory falut) |
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| 428 | do j=1,ny |
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| 429 | do i=1,nx |
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| 430 | if ((tag_gl(i,j).eq.iretreat-1).and. & ! points that stay gl |
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| 431 | (upwind_gl(i,j).eq.0)) then |
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| 432 | H_gl(i,j) = -Bsoc(i,j)*row/ro ! flotation thickness |
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| 433 | Hp(i,j) = H_gl(i,j)+5. ! to be sure to be grounded |
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| 434 | i_Hp(i,j) = 1 |
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| 435 | new_tag(i,j) = iretreat ! tagged with the new step number |
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| 436 | ! write(6,*) i,j,tag_gl(i,j), upwind_gl(i,j) |
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| 437 | endif |
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| 438 | end do |
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| 439 | end do |
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| 440 | |
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| 441 | !!$ where ((tag_gl(:,:).eq.iretreat-1).and. & ! points that stay gl |
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| 442 | !!$ (upwind_gl(:,:).eq.0)) |
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| 443 | !!$ |
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| 444 | !!$ H_gl(:,:) = -Bsoc(:,:)*row/ro ! flotation thickness |
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| 445 | !!$ Hp(:,:) = H_gl(:,:)+5. ! to be sure to be grounded |
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| 446 | !!$ i_Hp(:,:) = 1 |
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| 447 | !!$ new_tag(:,:) = iretreat ! tagged with the new step number |
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| 448 | !!$ end where |
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| 449 | |
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| 450 | else if ((time.gt.time_gl(iretreat)+dtmin/2.).and.(time.lt.time_gl(iretreat+1))) then |
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| 451 | ! write(6,*) time, 'entre',time_gl(iretreat),time_gl(iretreat+1) |
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| 452 | |
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| 453 | where (tag_gl(:,:).eq.iretreat) |
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| 454 | H_gl(:,:) = -Bsoc(:,:)*row/ro ! flotation thickness |
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| 455 | Hp(:,:) = H_gl(:,:)+5. ! +5 to be sure to be grounded |
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| 456 | ! even with small isostatic changes |
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| 457 | i_Hp(:,:) = 1 |
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| 458 | |
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| 459 | elsewhere (tag_gl(:,:).eq.iretreat+1) ! points that will be gl at next step |
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| 460 | Hp(:,:) = H(:,:)-dH_gl_dt(:,:)*(time-time_gl(iretreat)) |
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| 461 | i_Hp(:,:) = 1 |
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| 462 | |
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| 463 | elsewhere (tag_gl(:,:).eq.floating_tag) |
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| 464 | Hp(:,:) = H(:,:) |
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| 465 | i_Hp(:,:) = 1 |
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| 466 | end where |
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| 467 | |
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| 468 | else if (time.gt.time_gl(iretreat_max)) then |
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| 469 | ! write(6,*) time, 'apres iretreat_max',iretreat,time_gl(iretreat_max) |
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| 470 | |
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| 471 | where (tag_gl(:,:).eq.iretreat_max) |
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| 472 | H_gl(:,:) = -Bsoc(:,:)*row/ro ! flotation thickness |
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| 473 | Hp(:,:) = H_gl(:,:)+5. ! +5 to be sure to be grounded |
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| 474 | ! even with small isostatic changes |
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| 475 | i_Hp(:,:) = 1 |
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| 476 | |
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| 477 | elsewhere (tag_gl(:,:).eq.floating_tag) |
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| 478 | Hp(:,:) = H(:,:) |
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| 479 | i_Hp(:,:) = 1 |
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| 480 | end where |
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| 481 | |
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| 482 | !faire une sortie de la boucle step_gl |
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| 483 | |
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| 484 | end if find_step |
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| 485 | end do iretreat_loop |
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| 486 | |
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| 487 | end if start_time |
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| 488 | |
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| 489 | tag_gl(:,:) = new_tag(:,:) |
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| 490 | debug_3D(:,:,84) = tag_gl(:,:) |
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| 491 | debug_3D(:,:,85) = i_Hp(:,:) |
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| 492 | debug_3D(:,:,86) = Hp(:,:) |
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| 493 | |
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| 494 | end subroutine prescribe_retreat |
|---|
| 495 | ! |
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| 496 | !______________________________________________________________________________________ |
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| 497 | !> initialise prescribe retreat |
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| 498 | !! |
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| 499 | !! @return tag_gl |
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| 500 | !! @return upwind_gl |
|---|
| 501 | !! @return time_gl |
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| 502 | |
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| 503 | subroutine init_prescribe_retreat |
|---|
| 504 | |
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| 505 | implicit none |
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| 506 | real, dimension(nx,ny) :: lect_tab |
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| 507 | if (itracebug.eq.1) call tracebug(' Entree dans routine init_prescribe_retreat') |
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| 508 | |
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| 509 | ! read the prescribed gl file |
|---|
| 510 | |
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| 511 | call lect_input(3,'lecttab',1,lect_tab,trim(dirnameinp)//'masque_gl_15km_final.dat',trim(dirnameinp)//trim(runname)//'.nc') |
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| 512 | !call lect_datfile(nx,ny,lect_tab,1,trim(dirnameinp)//'masque_gl_15km_final.dat') |
|---|
| 513 | |
|---|
| 514 | tag_gl(:,:)=nint(lect_tab(:,:)) |
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| 515 | |
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| 516 | ! look if neighbors could become grounding line later |
|---|
| 517 | upwind_gl(:,:) = 0 |
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| 518 | do j=2,ny-1 |
|---|
| 519 | do i=2,nx-1 |
|---|
| 520 | if ((tag_gl(i,j).ne.floating_tag).and.(tag_gl(i,j).ne.grounded_tag)) then |
|---|
| 521 | if (any(tag_gl(i-1:i+1,j-1:j+1).eq.tag_gl(i,j)+1)) then |
|---|
| 522 | upwind_gl(i,j) = 1 |
|---|
| 523 | end if |
|---|
| 524 | end if |
|---|
| 525 | end do |
|---|
| 526 | end do |
|---|
| 527 | |
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| 528 | ! time of the retreat steps |
|---|
| 529 | |
|---|
| 530 | do i=1,iretreat_max |
|---|
| 531 | time_gl(i)=(i-1)*30.+100000. |
|---|
| 532 | end do |
|---|
| 533 | time_gl(iretreat)=200000. |
|---|
| 534 | |
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| 535 | write(num_rep_42,*) '! Grounding line retreat prescribed' |
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| 536 | write(num_rep_42,*) '! time_gl begin et suivant : ',time_gl(1),time_gl(2), & |
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| 537 | ' time_glmax=',time_gl(iretreat) |
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| 538 | |
|---|
| 539 | ! beginning of breaking or melting ice shelves |
|---|
| 540 | |
|---|
| 541 | t_break = 1000000.d00 |
|---|
| 542 | |
|---|
| 543 | write(num_rep_42,*) '! t_break=', t_break |
|---|
| 544 | |
|---|
| 545 | end subroutine init_prescribe_retreat |
|---|
| 546 | !______________________________________________________________________________________ |
|---|
| 547 | !______________________________________________________________________________________ |
|---|
| 548 | !> function prescribe_present_H_gl |
|---|
| 549 | !! calculate the initial grounding line position |
|---|
| 550 | !! @return i_hp(:,:) and hp(:,:) |
|---|
| 551 | |
|---|
| 552 | subroutine prescribe_present_H_gl_copy |
|---|
| 553 | |
|---|
| 554 | implicit none |
|---|
| 555 | if (itracebug.eq.1) call tracebug(' Entree dans routine prescribe_present_H_gl-copy') |
|---|
| 556 | |
|---|
| 557 | do j=1,ny |
|---|
| 558 | do i=1,nx |
|---|
| 559 | if ((MK_flot0(i,j).eq. 1).or.(MK_gl0(i,j) .eq. 1)) then |
|---|
| 560 | i_hp(i,j) = 1 ! thickness prescribed to present value |
|---|
| 561 | hp(i,j) = Hp0(i,j) |
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| 562 | end if |
|---|
| 563 | end do |
|---|
| 564 | end do |
|---|
| 565 | |
|---|
| 566 | !!$where ((MK_flot0(:,:).eq. 1).or.(MK_gl0(:,:) .eq. 1)) ! floating or grounding line |
|---|
| 567 | !!$ i_hp(:,:) = 1 ! thickness prescribed to present value |
|---|
| 568 | !!$! hp(:,:) = 1 !Hp0(:,:) |
|---|
| 569 | !!$end where |
|---|
| 570 | |
|---|
| 571 | |
|---|
| 572 | end subroutine prescribe_present_H_gl_copy |
|---|
| 573 | |
|---|
| 574 | !______________________________________________________________________________________ |
|---|
| 575 | !> initialise prescr_ice2sea_retreat |
|---|
| 576 | !! |
|---|
| 577 | !! @return tag_gl |
|---|
| 578 | !! @return upwind_gl |
|---|
| 579 | !! @return time_gl |
|---|
| 580 | |
|---|
| 581 | ! nouvelle routine de recul impose de grounding line pour ice2sea : decembre 2011 |
|---|
| 582 | ! cette routine transforme les informations distance en information temps ou un noeud sera just grounded" |
|---|
| 583 | |
|---|
| 584 | |
|---|
| 585 | subroutine init_prescr_ice2sea_retreat |
|---|
| 586 | |
|---|
| 587 | implicit none |
|---|
| 588 | |
|---|
| 589 | character(len=100) :: dist_file !< fichier contenant les distances |
|---|
| 590 | character(len=100) :: correc_gl_file !< fichier contenant les distances |
|---|
| 591 | |
|---|
| 592 | |
|---|
| 593 | real, dimension(nx,ny) :: dist_gl ! distance à la grounding line ( a lire) |
|---|
| 594 | real, dimension(nx,ny) :: correc_present_line ! nombre de sous-noeuds grounded (a lire) |
|---|
| 595 | |
|---|
| 596 | real :: vretrait ! vitesse de retrait |
|---|
| 597 | real :: time_onset ! moment ou la grounding line commence a reculer |
|---|
| 598 | |
|---|
| 599 | |
|---|
| 600 | namelist/retreat_ice2sea/dist_file,correc_gl_file,vretrait,time_onset |
|---|
| 601 | |
|---|
| 602 | |
|---|
| 603 | if (itracebug.eq.1) call tracebug(' Entree dans routine init_prescr_ice2sea_retreat') |
|---|
| 604 | |
|---|
| 605 | |
|---|
| 606 | ! read the distance file and the |
|---|
| 607 | |
|---|
| 608 | call lect_input(3,'lecttab',1,lect_tab,trim(dirnameinp)//'masque_gl_15km_final.dat',trim(dirnameinp)//trim(runname)//'.nc') |
|---|
| 609 | !call lect_datfile(nx,ny,lect_tab,1,trim(dirnameinp)//'masque_gl_15km_final.dat') |
|---|
| 610 | |
|---|
| 611 | tag_gl(:,:)=nint(lect_tab(:,:)) |
|---|
| 612 | |
|---|
| 613 | ! look if neighbors could become grounding line later |
|---|
| 614 | upwind_gl(:,:) = 0 |
|---|
| 615 | do j=2,ny-1 |
|---|
| 616 | do i=2,nx-1 |
|---|
| 617 | if ((tag_gl(i,j).ne.floating_tag).and.(tag_gl(i,j).ne.grounded_tag)) then |
|---|
| 618 | if (any(tag_gl(i-1:i+1,j-1:j+1).eq.tag_gl(i,j)+1)) then |
|---|
| 619 | upwind_gl(i,j) = 1 |
|---|
| 620 | end if |
|---|
| 621 | end if |
|---|
| 622 | end do |
|---|
| 623 | end do |
|---|
| 624 | |
|---|
| 625 | ! time of the retreat steps |
|---|
| 626 | |
|---|
| 627 | do i=1,iretreat_max |
|---|
| 628 | time_gl(i)=(i-1)*30.+100000. |
|---|
| 629 | end do |
|---|
| 630 | time_gl(iretreat)=200000. |
|---|
| 631 | |
|---|
| 632 | write(num_rep_42,*) '! Grounding line retreat prescribed' |
|---|
| 633 | write(num_rep_42,*) '! time_gl begin et suivant : ',time_gl(1),time_gl(2), & |
|---|
| 634 | ' time_glmax=',time_gl(iretreat) |
|---|
| 635 | |
|---|
| 636 | ! beginning of breaking or melting ice shelves |
|---|
| 637 | |
|---|
| 638 | t_break = 1000000.d00 |
|---|
| 639 | |
|---|
| 640 | write(num_rep_42,*) '! t_break=', t_break |
|---|
| 641 | |
|---|
| 642 | end subroutine init_prescr_ice2sea_retreat |
|---|
| 643 | !______________________________________________________________________________________ |
|---|
| 644 | |
|---|
| 645 | |
|---|
| 646 | end module prescribe_H |
|---|
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