[11201] | 1 | MODULE domutil |
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| 2 | !! |
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| 3 | !!====================================================================== |
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| 4 | !! *** MODULE closea *** |
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| 5 | !! modutl : specific module to do |
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| 6 | !! - 2d flood filling (closea) |
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| 7 | !! - 3d flood filling (zgr_isf) |
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| 8 | !! |
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| 9 | !!====================================================================== |
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| 10 | !! History : 4.0 ! 03-18 (P. Mathiot) Original code |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! fillpool : replace all point connected to the seed by a fillvalue |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | !! |
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| 17 | USE dom_oce ! ocean space and time domain |
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| 18 | USE domngb |
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| 19 | USE in_out_manager ! I/O manager |
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| 20 | USE lib_mpp |
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| 21 | USE lbclnk |
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| 22 | |
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| 23 | IMPLICIT NONE |
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| 24 | PRIVATE |
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| 25 | |
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| 26 | PUBLIC fill_pool ! routine called by domain module |
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| 27 | |
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| 28 | INTERFACE fill_pool |
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| 29 | MODULE PROCEDURE FillPool2D, FillPool3D |
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| 30 | END INTERFACE |
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| 31 | |
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| 32 | TYPE idx |
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| 33 | INTEGER :: i,j,k |
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| 34 | TYPE(idx), POINTER :: next |
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| 35 | END TYPE idx |
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| 36 | |
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| 37 | CONTAINS |
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| 38 | SUBROUTINE FillPool3D(kiseed, kjseed, kkseed, rdta, rfill) |
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| 39 | !!--------------------------------------------------------------------- |
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| 40 | !! *** ROUTINE FillPool3D *** |
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| 41 | !! |
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| 42 | !! ** Purpose : Replace all area surrounding by mask value by kifill value |
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| 43 | !! |
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| 44 | !! ** Method : flood fill algorithm |
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| 45 | !! |
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| 46 | !!---------------------------------------------------------------------- |
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| 47 | INTEGER, INTENT(in) :: kiseed, kjseed, kkseed |
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| 48 | REAL(wp), INTENT(in) :: rfill ! filling value |
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| 49 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: rdta ! input data |
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| 50 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: rseedmap, rseedmap_b ! |
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| 51 | |
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| 52 | INTEGER :: ip=0 ! size of the pile |
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| 53 | INTEGER :: ii , ij , ik , kii, kjj, jj, kk ! working integer |
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| 54 | INTEGER :: iip1, ijp1, ikp1 |
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| 55 | INTEGER :: iim1, ijm1, ikm1 |
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| 56 | INTEGER :: nseed |
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| 57 | TYPE (idx), POINTER :: seed |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | ! |
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| 60 | ! initialisation seed |
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| 61 | NULLIFY(seed) |
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| 62 | ! |
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| 63 | ! create the first seed and update nseed for all processors |
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| 64 | nseed = 0 |
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| 65 | rseedmap = 0. |
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| 66 | ii=kiseed; ij=kjseed ; ik=kkseed |
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| 67 | IF ((mi0(ii) == mi1(ii)) .AND. (mj0(ij) == mj1(ij))) THEN ! T if seed on the local domain |
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| 68 | ii = mi0(ii) ; ij = mj0(ij); ! conversion to local index |
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| 69 | IF (rdta(ii,ij,ik) > 0 ) THEN ! create seed if not on land |
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| 70 | CALL add_head_idx(seed,ii,ij,ik) |
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| 71 | rdta (ii,ij,ik) = rfill |
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| 72 | rseedmap(ii,ij,ik) = 1. |
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| 73 | END IF |
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| 74 | END IF |
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| 75 | nseed=SUM(rseedmap); IF( lk_mpp ) CALL mpp_sum('domutil', nseed ) ! nseed =0 means on land => WARNING later on |
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| 76 | ! |
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| 77 | ! loop until the pile size is 0 or if the pool is larger than the critical size |
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| 78 | IF (nseed > 0) THEN |
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| 79 | ! seed on ocean continue |
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| 80 | DO WHILE ( nseed /= 0 ) |
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| 81 | DO WHILE ( ASSOCIATED(seed) ) |
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| 82 | ip=ip+1 |
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| 83 | ii=seed%i; ij=seed%j ; ik=seed%k ; rseedmap(ii,ij,ik)=1. |
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| 84 | ! |
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| 85 | ! update bathy and update pile size |
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| 86 | CALL del_head_idx(seed) |
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| 87 | ! |
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| 88 | ! check neighbour cells |
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| 89 | iip1=ii+1 ; IF (iip1 == jpi+1 ) iip1=ii |
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| 90 | iim1=ii-1 ; IF (iim1 == 0 ) iim1=ii |
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| 91 | ijp1=ij+1 ; IF (ijp1 == jpj+1 ) ijp1=ij |
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| 92 | ijm1=ij-1 ; IF (ijm1 == 0 ) ijm1=ij |
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| 93 | ikp1=ik+1 ; IF (ikp1 == jpk+1 ) ikp1=ik |
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| 94 | ikm1=ik-1 ; IF (ikm1 == 0 ) ikm1=ik |
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| 95 | ! |
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| 96 | ! ji direction |
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| 97 | IF (rdta(ii,ijp1,ik) > 0 .AND. rdta(ii,ijp1,ik) /= rfill ) THEN ; CALL add_head_idx(seed,ii,ijp1,ik) ; rdta(ii,ijp1,ik) = rfill ; rseedmap(ii,ijp1,ik)=1. ; END IF |
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| 98 | IF (rdta(ii,ijm1,ik) > 0 .AND. rdta(ii,ijm1,ik) /= rfill ) THEN ; CALL add_head_idx(seed,ii,ijm1,ik) ; rdta(ii,ijm1,ik) = rfill ; rseedmap(ii,ijm1,ik)=1. ; END IF |
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| 99 | ! |
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| 100 | ! jj direction |
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| 101 | IF (rdta(iip1,ij,ik) > 0 .AND. rdta(iip1,ij,ik) /= rfill ) THEN ; CALL add_head_idx(seed,iip1,ij,ik) ; rdta(iip1,ij,ik) = rfill ; rseedmap(iip1,ij,ik)=1. ; END IF |
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| 102 | IF (rdta(iim1,ij,ik) > 0 .AND. rdta(iim1,ij,ik) /= rfill ) THEN ; CALL add_head_idx(seed,iim1,ij,ik) ; rdta(iim1,ij,ik) = rfill ; rseedmap(iim1,ij,ik)=1. ; END IF |
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| 103 | ! |
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| 104 | ! jk direction |
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| 105 | IF (rdta(ii,ij,ikp1) > 0 .AND. rdta(ii,ij,ikp1) /= rfill ) THEN ; CALL add_head_idx(seed,ii,ij,ikp1) ; rdta(ii,ij,ikp1) = rfill ; rseedmap(ii,ij,ik)=1. ; END IF |
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| 106 | IF (rdta(ii,ij,ikm1) > 0 .AND. rdta(ii,ij,ikm1) /= rfill ) THEN ; CALL add_head_idx(seed,ii,ij,ikm1) ; rdta(ii,ij,ikm1) = rfill ; rseedmap(ii,ij,ik)=1. ; END IF |
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| 107 | END DO |
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| 108 | ! |
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| 109 | ! exchange seed |
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| 110 | nseed=SUM(rseedmap); IF( lk_mpp ) CALL mpp_sum('domutil', nseed ) ! this is the sum of all the point check this iteration |
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| 111 | ! |
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| 112 | rseedmap_b(:,:,:)=rseedmap(:,:,:) |
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| 113 | CALL lbc_lnk('domutil', rseedmap, 'T', 1.) |
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| 114 | ! |
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| 115 | ! build new list of seed |
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| 116 | DO ii=1,jpi |
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| 117 | DO jj=1,jpj |
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| 118 | DO kk=1,jpk |
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| 119 | IF (rseedmap(ii,jj,kk) > 0.0 .AND. rseedmap(ii,jj,kk) /= rseedmap_b(ii,jj,kk) .AND. rdta(ii,jj,kk) > 0 .AND. rdta(ii,jj,kk) /= rfill) THEN |
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| 120 | CALL add_head_idx(seed,ii,jj,kk) |
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| 121 | END IF |
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| 122 | END DO |
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| 123 | END DO |
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| 124 | END DO |
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| 125 | ! |
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| 126 | ! reset map of seed |
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| 127 | rseedmap(:,:,:)=0.0 |
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| 128 | ! |
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| 129 | END DO |
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| 130 | ELSE |
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| 131 | WRITE(numout,*) 'W A R N I N G : SEED (',ii,ij,') is on land, nothing to do' |
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| 132 | END IF |
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| 133 | |
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| 134 | END SUBROUTINE FillPool3D |
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| 135 | |
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| 136 | SUBROUTINE FillPool2D(kiseed, kjseed, rdta, rfill) |
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| 137 | !!--------------------------------------------------------------------- |
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| 138 | !! *** ROUTINE FillPool3D *** |
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| 139 | !! |
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| 140 | !! ** Purpose : Replace all area surrounding by mask value by kifill value |
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| 141 | !! |
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| 142 | !! ** Method : flood fill algorithm |
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| 143 | !! |
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| 144 | !!---------------------------------------------------------------------- |
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| 145 | INTEGER, INTENT(in) :: kiseed, kjseed |
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| 146 | REAL(wp), INTENT(in) :: rfill ! filling value |
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| 147 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: rdta ! input data |
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| 148 | REAL(wp), DIMENSION(jpi,jpj) :: rseedmap, rseedmap_b |
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| 149 | |
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| 150 | INTEGER :: ip=0 ! size of the pile |
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| 151 | INTEGER :: ii , ij , jj, kii, kjj ! working integer |
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| 152 | INTEGER :: iip1, ijp1 ! working integer |
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| 153 | INTEGER :: iim1, ijm1 |
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| 154 | INTEGER :: nseed |
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| 155 | TYPE (idx), POINTER :: seed |
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| 156 | !!---------------------------------------------------------------------- |
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| 157 | ! |
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| 158 | ! initialisation seed |
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| 159 | NULLIFY(seed) |
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| 160 | ! |
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| 161 | ! create the first seed and update nseed for all processors |
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| 162 | nseed = 0 |
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| 163 | rseedmap = 0. |
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| 164 | ii = kiseed ; ij = kjseed ; |
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| 165 | IF ((mi0(ii) == mi1(ii)) .AND. (mj0(ij) == mj1(ij))) THEN ! T if seed on the local domain |
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| 166 | ii = mi0(ii) ; ij = mj0(ij) ! conversion to local index |
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| 167 | IF (rdta(ii,ij) > 0 ) THEN ! create seed if not on land |
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| 168 | CALL add_head_idx(seed,ii,ij,1) |
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| 169 | rdta (ii,ij) = rfill |
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| 170 | rseedmap(ii,ij) = 1. |
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| 171 | END IF |
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| 172 | END IF |
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| 173 | nseed=SUM(rseedmap); IF( lk_mpp ) CALL mpp_sum('domutil', nseed ) ! nseed =0 means on land => WARNING later on |
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| 174 | ! |
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| 175 | ! loop until the pile size is 0 or if the pool is larger than the critical size |
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| 176 | IF (nseed > 0) THEN |
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| 177 | ! seed on ocean continue |
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| 178 | DO WHILE ( nseed .NE. 0 ) |
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| 179 | DO WHILE ( ASSOCIATED(seed) ) |
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| 180 | ip=ip+1 |
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| 181 | ii=seed%i; ij=seed%j ; rseedmap(ii,ij)=1. |
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| 182 | ! update pile size |
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| 183 | CALL del_head_idx(seed) |
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| 184 | ! |
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| 185 | ! check neighbour cells |
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| 186 | iip1=ii+1 ; IF (iip1 == jpi+1 ) iip1=ii |
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| 187 | iim1=ii-1 ; IF (iim1 == 0 ) iim1=ii |
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| 188 | ijp1=ij+1 ; IF (ijp1 == jpj+1 ) ijp1=ij |
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| 189 | ijm1=ij-1 ; IF (ijm1 == 0 ) ijm1=ij |
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| 190 | ! |
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| 191 | ! ji direction |
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| 192 | IF (rdta(ii ,ijp1) > 0 .AND. rdta(ii ,ijp1) /= rfill ) THEN ; CALL add_head_idx(seed,ii ,ijp1,1) ; rdta(ii ,ijp1) = rfill ; rseedmap(ii ,ijp1)=1. ; END IF |
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| 193 | IF (rdta(ii ,ijm1) > 0 .AND. rdta(ii ,ijm1) /= rfill ) THEN ; CALL add_head_idx(seed,ii ,ijm1,1) ; rdta(ii ,ijm1) = rfill ; rseedmap(ii ,ijm1)=1. ; END IF |
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| 194 | ! |
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| 195 | ! jj direction |
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| 196 | IF (rdta(iip1,ij ) > 0 .AND. rdta(iip1,ij ) /= rfill ) THEN ; CALL add_head_idx(seed,iip1,ij ,1) ; rdta(iip1,ij ) = rfill ; rseedmap(iip1,ij )=1. ; END IF |
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| 197 | IF (rdta(iim1,ij ) > 0 .AND. rdta(iim1,ij ) /= rfill ) THEN ; CALL add_head_idx(seed,iim1,ij ,1) ; rdta(iim1,ij ) = rfill ; rseedmap(iim1,ij )=1. ; END IF |
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| 198 | END DO |
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| 199 | ! |
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| 200 | ! exchange seed |
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| 201 | nseed=SUM(rseedmap); IF( lk_mpp ) CALL mpp_sum('domutil', nseed ) ! this is the sum of all the point check this iteration |
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| 202 | ! |
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| 203 | rseedmap_b(:,:)=rseedmap(:,:) |
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| 204 | CALL lbc_lnk('domutil', rseedmap, 'T', 1.) |
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| 205 | ! |
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| 206 | ! build new list of seed |
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| 207 | DO ii=1,jpi |
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| 208 | DO jj=1,jpj |
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| 209 | IF (rseedmap(ii,jj) > 0.0 .AND. rseedmap(ii,jj) /= rseedmap_b(ii,jj) .AND. rdta(ii,jj) > 0 .AND. rdta(ii,jj) /= rfill) THEN |
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| 210 | CALL add_head_idx(seed, ii, jj, 1) |
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| 211 | END IF |
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| 212 | END DO |
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| 213 | END DO |
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| 214 | ! |
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| 215 | ! reset map of seed |
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| 216 | rseedmap(:,:)=0.0 |
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| 217 | ! |
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| 218 | END DO |
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| 219 | ELSE |
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| 220 | WRITE(numout,*) 'W A R N I N G : SEED (',ii,ij,') is on land, nothing to do', narea |
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| 221 | END IF |
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| 222 | |
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| 223 | END SUBROUTINE FillPool2D |
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| 224 | ! |
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| 225 | ! |
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| 226 | ! subroutine to deals with link list |
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| 227 | ! |
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| 228 | SUBROUTINE create_idx(pt_idx, ki, kj, kk) |
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| 229 | TYPE (idx), POINTER :: pt_idx |
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| 230 | INTEGER, INTENT(in) :: ki, kj, kk |
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| 231 | ! |
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| 232 | ! initialised all field to NULL() |
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| 233 | NULLIFY(pt_idx) |
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| 234 | ! |
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| 235 | ! allocate new element |
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| 236 | ALLOCATE(pt_idx) |
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| 237 | pt_idx%i=ki ; pt_idx%j=kj ; pt_idx%k=kk ; |
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| 238 | pt_idx%next => NULL() |
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| 239 | END SUBROUTINE create_idx |
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| 240 | |
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| 241 | SUBROUTINE add_head_idx(pt_idx, ki, kj, kk) |
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| 242 | TYPE (idx), POINTER :: pt_idx |
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| 243 | TYPE (idx), POINTER :: zpt_new |
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| 244 | INTEGER, INTENT(in) :: ki, kj, kk |
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| 245 | ! |
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| 246 | ! allocate new element |
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| 247 | ALLOCATE(zpt_new) |
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| 248 | zpt_new%i=ki ; zpt_new%j=kj ; zpt_new%k=kk ; |
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| 249 | zpt_new%next => NULL() |
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| 250 | ! |
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| 251 | ! linked new element to main list |
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| 252 | zpt_new%next => pt_idx |
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| 253 | pt_idx => zpt_new |
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| 254 | END SUBROUTINE add_head_idx |
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| 255 | |
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| 256 | SUBROUTINE del_head_idx(pt_idx) |
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| 257 | TYPE (idx), POINTER :: pt_idx |
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| 258 | TYPE (idx), POINTER :: zpt_tmp |
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| 259 | ! |
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| 260 | ! delete first element |
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| 261 | IF (ASSOCIATED(pt_idx%next)) THEN |
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| 262 | zpt_tmp => pt_idx%next |
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| 263 | DEALLOCATE(pt_idx) |
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| 264 | NULLIFY(pt_idx) |
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| 265 | pt_idx => zpt_tmp |
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| 266 | ELSE |
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| 267 | NULLIFY(pt_idx) |
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| 268 | ENDIF |
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| 269 | END SUBROUTINE del_head_idx |
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| 270 | ! |
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| 271 | END MODULE domutil |
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