| 1 | subroutine gridcheck_nests |
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| 2 | !******************************************************************************* |
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| 3 | ! * |
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| 4 | ! This routine checks the grid specification for the nested model domains. * |
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| 5 | ! It is similar to subroutine gridcheck, which checks the mother domain. * |
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| 6 | ! * |
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| 7 | ! Note: This is the FLEXPART_WRF version of subroutine gridcheck. * |
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| 8 | ! The computational grid is the WRF x-y grid rather than lat-lon. * |
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| 9 | ! There are many differences from the FLEXPART version. * |
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| 10 | ! * |
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| 11 | ! Authors: A. Stohl, G. Wotawa * |
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| 12 | ! 8 February 1999 * |
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| 13 | ! * |
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| 14 | ! Nov 2005 - R. Easter - MAJOR revisions for FLEXPART_WRF * |
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| 15 | ! Dec 2005, R. Easter - changed names of "*lon0*" & "*lat0*" variables * |
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| 16 | ! * |
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| 17 | !******************************************************************************* |
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| 18 | |
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| 19 | ! use grib_api |
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| 20 | use par_mod |
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| 21 | use com_mod |
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| 22 | |
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| 23 | |
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| 24 | integer,parameter :: ndims_max=4 |
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| 25 | integer :: i, ierr, ifn, itime, ix |
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| 26 | integer :: idiagaa, idiagaa_1, idiagaa_2, idiagbb |
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| 27 | integer :: iduma, idumb |
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| 28 | integer :: jy |
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| 29 | integer :: k |
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| 30 | integer :: l, lp |
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| 31 | integer :: lendim(ndims_max), lendim_exp(ndims_max), & |
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| 32 | lendim_max(ndims_max) |
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| 33 | integer :: m |
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| 34 | integer :: map_proj_id_dum |
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| 35 | integer :: ndims, ndims_exp, & |
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| 36 | ext_scalar,pbl_physics,mp_physics_dum |
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| 37 | integer :: n_west_east, n_south_north, n_bottom_top |
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| 38 | integer :: nuvzn, nwzn |
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| 39 | |
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| 40 | real :: dx_met, dy_met |
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| 41 | real :: duma, dumb, dumc, dumx, dumy |
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| 42 | real :: dump1, dump2, dumdz |
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| 43 | real :: eta_w_wrf_nest(nwzmax), eta_u_wrf_nest(nwzmax) |
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| 44 | real :: map_stdlon_dum, map_truelat1_dum, map_truelat2_dum |
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| 45 | real :: pint, p_top_wrf_nest |
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| 46 | real :: xaux1, xaux2, yaux1, yaux2 |
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| 47 | |
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| 48 | character(len=160) :: fnamenc, varname |
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| 49 | |
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| 50 | real(kind=4) :: m_un(0:nxmaxn-1,0:nymaxn-1,1,maxnests) |
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| 51 | real(kind=4) :: m_vn(0:nxmaxn-1,0:nymaxn-1,1,maxnests) |
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| 52 | |
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| 53 | ! Loop about all nesting levels |
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| 54 | !****************************** |
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| 55 | ! idiagaa_1 = 1 |
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| 56 | idiagaa_1 = 0 |
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| 57 | idiagaa_2 = 0 |
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| 58 | ! idiagbb = 10 |
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| 59 | idiagbb = 0 |
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| 60 | |
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| 61 | do l=1,numbnests |
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| 62 | |
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| 63 | write(*,'(//a,i3)') 'gridcheck_nests output for grid #', l |
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| 64 | |
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| 65 | ! |
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| 66 | ! get grid info from the wrf netcdf file |
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| 67 | ! |
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| 68 | if(ideltas.gt.0) then |
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| 69 | ifn=1 |
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| 70 | else |
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| 71 | ifn=numbwf |
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| 72 | endif |
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| 73 | m = numpath+2*(l-1)+1 |
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| 74 | fnamenc = path(m)(1:length(m)) // wfnamen(l,ifn) |
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| 75 | |
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| 76 | idiagaa = idiagaa_1 |
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| 77 | |
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| 78 | call read_ncwrfout_gridinfo( ierr, idiagaa, fnamenc, & |
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| 79 | n_west_east, n_south_north, n_bottom_top, & |
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| 80 | dx_met, dy_met, & |
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| 81 | m_grid_id(l), m_parent_grid_id(l), m_parent_grid_ratio(l), & |
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| 82 | i_parent_start(l), j_parent_start(l), & |
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| 83 | map_proj_id_dum, map_stdlon_dum, & |
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| 84 | map_truelat1_dum, map_truelat2_dum, & |
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| 85 | ext_scalar,pbl_physics,mp_physics_dum ) |
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| 86 | if (ierr .ne. 0) goto 999 |
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| 87 | |
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| 88 | |
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| 89 | mp_physicsn(l)=mp_physics_dum |
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| 90 | |
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| 91 | ! subtract 1 because i & j indexing in flexpart always starts at 0 |
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| 92 | i_parent_start(l) = i_parent_start(l)-1 |
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| 93 | j_parent_start(l) = j_parent_start(l)-1 |
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| 94 | |
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| 95 | ! |
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| 96 | ! set grid dimension and size variables |
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| 97 | ! |
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| 98 | nxn(l) = n_west_east |
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| 99 | nyn(l) = n_south_north |
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| 100 | |
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| 101 | nuvzn = n_bottom_top |
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| 102 | nwzn = n_bottom_top + 1 |
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| 103 | |
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| 104 | ! for FLEXPART_WRF, x & y coords are in meters |
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| 105 | dxn(l) = dx_met |
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| 106 | dyn(l) = dy_met |
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| 107 | |
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| 108 | |
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| 109 | ! |
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| 110 | ! check that grid dimensions are not too big |
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| 111 | ! |
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| 112 | ! flexpart_wrf 07-nov-2005 - require (nxn+1 .le. nxmaxn) and (nyn+1 .le. nymaxn) |
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| 113 | ! because u,v in met. files are on staggered grid |
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| 114 | if (nxn(l)+1 .gt. nxmaxn) then |
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| 115 | write(*,*) 'FLEXPART gridcheck_nests error: ' // & |
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| 116 | 'Too many grid points in x direction.' |
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| 117 | write(*,*) 'Change parameter settings in file par_mod.' |
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| 118 | write(*,*) 'l, nxn(l)+1, nxmaxn =', l, nxn(l), nxmaxn |
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| 119 | stop |
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| 120 | endif |
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| 121 | |
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| 122 | if (nyn(l)+1 .gt. nymaxn) then |
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| 123 | write(*,*) 'FLEXPART gridcheck_nests error: ' // & |
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| 124 | 'Too many grid points in y direction.' |
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| 125 | write(*,*) 'Change parameter settings in file par_mod.' |
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| 126 | write(*,*) 'l, nyn(l)+1, nymaxn =', l, nyn(l), nymaxn |
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| 127 | stop |
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| 128 | endif |
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| 129 | |
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| 130 | nuvzn = nuvzn+add_sfc_level |
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| 131 | if (nuvzn .ne. nuvz) then |
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| 132 | write(*,*) 'FLEXPART gridcheck_nests error: ' // & |
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| 133 | 'nuvzn and nuvz differ' |
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| 134 | write(*,*) 'l, nuvzn, nuvz =', l, nuvzn, nuvz |
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| 135 | stop |
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| 136 | endif |
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| 137 | |
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| 138 | if (nwzn .ne. nwz) then |
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| 139 | write(*,*) 'FLEXPART gridcheck_nests error: ' // & |
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| 140 | 'nwzn and nwz differ' |
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| 141 | write(*,*) 'l, nwzn, nwz =', l, nwzn, nwz |
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| 142 | stop |
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| 143 | endif |
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| 144 | |
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| 145 | ! check that map projection info matches parent |
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| 146 | duma = 3.0e-7*max( abs(map_stdlon), 1.0e-30 ) |
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| 147 | dumb = 3.0e-7*max( abs(map_truelat1), 1.0e-30 ) |
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| 148 | dumc = 3.0e-7*max( abs(map_truelat2), 1.0e-30 ) |
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| 149 | iduma = 0 |
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| 150 | if (map_proj_id .ne. map_proj_id_dum) iduma = 1 |
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| 151 | if (abs(map_stdlon-map_stdlon_dum) .gt. duma) iduma = 2 |
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| 152 | if (abs(map_truelat1-map_truelat1_dum) .gt. dumb) iduma = 3 |
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| 153 | if (abs(map_truelat2-map_truelat2_dum) .gt. dumc) iduma = 4 |
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| 154 | if (iduma .ne. 0) then |
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| 155 | write(*,*) 'FLEXPART gridcheck_nests error: ' // & |
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| 156 | 'map projection parameters differ' |
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| 157 | write(*,*) 'l, map param #=', l, iduma |
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| 158 | stop |
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| 159 | end if |
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| 160 | |
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| 161 | varname = 'MAPFAC_MX' |
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| 162 | lendim_exp(1) = nxn(l) |
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| 163 | lendim_max(1) = nxmaxn |
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| 164 | lendim_exp(2) = nyn(l) |
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| 165 | lendim_max(2) = nymaxn |
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| 166 | ndims_exp = 3 |
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| 167 | itime=1 |
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| 168 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 169 | varname, m_xn(0,0,1,l), & |
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| 170 | itime, & |
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| 171 | ndims, ndims_exp, ndims_max, & |
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| 172 | lendim, lendim_exp, lendim_max ) |
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| 173 | if (ierr .ne. 0) then |
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| 174 | varname = 'MAPFAC_M' |
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| 175 | lendim_exp(1) = nxn(l) |
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| 176 | lendim_max(1) = nxmaxn |
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| 177 | lendim_exp(2) = nyn(l) |
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| 178 | lendim_max(2) = nymaxn |
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| 179 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 180 | varname, m_xn(0,0,1,l), & |
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| 181 | itime, & |
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| 182 | ndims, ndims_exp, ndims_max, & |
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| 183 | lendim, lendim_exp, lendim_max ) |
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| 184 | endif |
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| 185 | if (ierr .ne. 0) then |
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| 186 | print*,'error doing MAP X' |
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| 187 | varname = 'MAPFAC_UX' |
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| 188 | lendim_exp(1) = nxn(l)+1 |
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| 189 | lendim_max(1) = nxmaxn |
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| 190 | lendim_exp(2) = nyn(l) |
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| 191 | lendim_max(2) = nymaxn |
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| 192 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 193 | varname, m_un(0,0,1,l), & |
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| 194 | itime, & |
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| 195 | ndims, ndims_exp, ndims_max, & |
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| 196 | lendim, lendim_exp, lendim_max ) |
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| 197 | do j = 0, nyn(l)-1 |
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| 198 | do i = 0, nxn(l)-1 |
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| 199 | m_xn(i,j,1,l)=(m_un(i,j,1,l)+m_un(i+1,j,1,l))*0.5 |
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| 200 | enddo |
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| 201 | enddo |
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| 202 | if (ierr .ne. 0) then |
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| 203 | print*,'error doing MAP U' |
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| 204 | print*,'NO MAP FACTOR IS GOING TO BE USED.' |
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| 205 | print*,'LARGE UNCERTAINTIES TO BE EXPECTED' |
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| 206 | do j = 0, nyn(l)-1 |
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| 207 | do i = 0, nxn(l)-1 |
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| 208 | m_xn(i,j,1,l)=1. |
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| 209 | enddo |
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| 210 | enddo |
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| 211 | end if |
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| 212 | end if |
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| 213 | |
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| 214 | varname = 'MAPFAC_MY' |
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| 215 | lendim_exp(1) = nxn(l) |
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| 216 | lendim_max(1) = nxmaxn |
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| 217 | lendim_exp(2) = nyn(l) |
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| 218 | lendim_max(2) = nymaxn |
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| 219 | |
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| 220 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 221 | varname, m_yn(0,0,1,l), & |
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| 222 | itime, & |
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| 223 | ndims, ndims_exp, ndims_max, & |
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| 224 | lendim, lendim_exp, lendim_max ) |
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| 225 | if (ierr .ne. 0) then |
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| 226 | varname = 'MAPFAC_M' |
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| 227 | lendim_exp(1) = nxn(l) |
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| 228 | lendim_max(1) = nxmaxn |
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| 229 | lendim_exp(2) = nyn(l) |
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| 230 | lendim_max(2) = nymaxn |
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| 231 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 232 | varname, m_yn(0,0,1,l), & |
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| 233 | itime, & |
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| 234 | ndims, ndims_exp, ndims_max, & |
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| 235 | lendim, lendim_exp, lendim_max ) |
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| 236 | endif |
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| 237 | if (ierr .ne. 0) then |
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| 238 | print*,'error doing MAP Y' |
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| 239 | varname = 'MAPFAC_VY' |
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| 240 | lendim_exp(1) = nxn(l) |
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| 241 | lendim_max(1) = nxmaxn |
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| 242 | lendim_exp(2) = nyn(l)+1 |
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| 243 | lendim_max(2) = nymaxn |
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| 244 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 245 | varname, m_vn(0,0,1,l), & |
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| 246 | itime, & |
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| 247 | ndims, ndims_exp, ndims_max, & |
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| 248 | lendim, lendim_exp, lendim_max ) |
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| 249 | do j = 0, nyn(l)-1 |
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| 250 | do i = 0, nxn(l)-1 |
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| 251 | m_yn(i,j,1,l)=(m_vn(i,j,1,l)+m_vn(i,j+1,1,l))*0.5 |
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| 252 | enddo |
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| 253 | enddo |
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| 254 | if (ierr .ne. 0) then |
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| 255 | print*,'ERROR doing MAP V' |
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| 256 | print*,'NO MAP FACTOR IS GOING TO BE USED.' |
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| 257 | print*,'LARGE UNCERTAINTIES TO BE EXPECTED' |
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| 258 | do j = 0, nyn(l)-1 |
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| 259 | do i = 0, nxn(l)-1 |
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| 260 | m_yn(i,j,1,l)=1. |
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| 261 | enddo |
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| 262 | enddo |
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| 263 | end if |
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| 264 | end if |
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| 265 | lendim_exp(1) = nxn(l) |
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| 266 | lendim_max(1) = nxmaxn |
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| 267 | lendim_exp(2) = nyn(l) |
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| 268 | lendim_max(2) = nymaxn |
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| 269 | |
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| 270 | ! |
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| 271 | ! read latitude and longitude |
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| 272 | ! read oro, lsm, and excessoro |
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| 273 | ! |
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| 274 | |
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| 275 | idiagaa = idiagaa_2 |
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| 276 | |
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| 277 | varname = 'XLAT' |
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| 278 | do i = 1, ndims_max |
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| 279 | lendim_exp(i) = 0 |
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| 280 | lendim_max(i) = 1 |
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| 281 | end do |
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| 282 | itime = 1 |
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| 283 | lendim_exp(1) = nxn(l) |
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| 284 | lendim_max(1) = nxmaxn |
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| 285 | lendim_exp(2) = nyn(l) |
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| 286 | lendim_max(2) = nymaxn |
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| 287 | ndims_exp = 3 |
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| 288 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 289 | varname, ylat2dn(0,0,l), & |
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| 290 | itime, & |
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| 291 | ndims, ndims_exp, ndims_max, & |
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| 292 | lendim, lendim_exp, lendim_max ) |
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| 293 | if (ierr .ne. 0) then |
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| 294 | write(*,*) |
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| 295 | write(*,*) '*** checkgrid -- error doing ncread of XLAT' |
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| 296 | stop |
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| 297 | end if |
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| 298 | |
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| 299 | varname = 'XLONG' |
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| 300 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 301 | varname, xlon2dn(0,0,l), & |
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| 302 | itime, & |
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| 303 | ndims, ndims_exp, ndims_max, & |
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| 304 | lendim, lendim_exp, lendim_max ) |
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| 305 | if (ierr .ne. 0) then |
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| 306 | write(*,*) |
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| 307 | write(*,*) '*** checkgrid -- error doing ncread of XLONG' |
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| 308 | stop |
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| 309 | end if |
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| 310 | |
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| 311 | varname = 'HGT' |
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| 312 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
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| 313 | varname, oron(0,0,l), & |
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| 314 | itime, & |
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| 315 | ndims, ndims_exp, ndims_max, & |
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| 316 | lendim, lendim_exp, lendim_max ) |
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| 317 | if (ierr .ne. 0) then |
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| 318 | write(*,*) |
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| 319 | write(*,*) '*** checkgrid -- error doing ncread of HGT' |
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| 320 | stop |
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| 321 | end if |
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| 322 | |
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| 323 | ! lsm = landsea mask == land fraction (or non-ocean fraction) |
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| 324 | ! for now, set lsm=1.0 which means land |
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| 325 | do jy=0,nyn(l)-1 |
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| 326 | do ix=0,nxn(l)-1 |
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| 327 | lsmn(ix,jy,l)=1.0 |
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| 328 | end do |
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| 329 | end do |
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| 330 | |
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| 331 | ! for now, set excessoro=0.0 |
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| 332 | do jy=0,nyn(l)-1 |
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| 333 | do ix=0,nxn(l)-1 |
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| 334 | excessoron(ix,jy,l)=0.0 |
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| 335 | end do |
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| 336 | end do |
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| 337 | do jy=1,nyn(l)-2 |
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| 338 | do ix=1,nxn(l)-2 |
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| 339 | m=oron(ix,jy,l)+oron(ix-1,jy,l)+oron(ix+1,jy,l)+ & |
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| 340 | oron(ix,jy-1,l)+oron(ix,jy+1,l) |
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| 341 | m=m/5. |
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| 342 | excessoron(ix,jy,l)=(oron(ix,jy,l)-m)**2.+(oron(ix-1,jy,l)-m)**2. & |
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| 343 | +(oron(ix+1,jy,l)-m)**2.+(oron(ix,jy-1,l)-m)**2.+(oron(ix,jy+1,l)-m)**2. |
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| 344 | excessoron(ix,jy,l)=(excessoron(ix,jy,l)/5.)**0.5 |
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| 345 | end do |
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| 346 | end do |
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| 347 | |
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| 348 | |
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| 349 | ! |
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| 350 | ! identify the parent grid (which is probably "l-1", so this code |
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| 351 | ! may be more complicated that necessary) |
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| 352 | ! set xmet0n, ymet0n, which are the x,y coords of lower-left corner |
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| 353 | ! of a nested grid (in meters on the mother grid) |
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| 354 | ! |
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| 355 | ! note on dumc: |
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| 356 | ! the lower-left corner of the nested cell (0,0) coincides with the |
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| 357 | ! lower-left corner of the parent cell (i_parent_start,j_parent_start) |
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| 358 | ! this being the case, the center of nested cell (0,0) is shifted |
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| 359 | ! by (-dumc*parent_gridsize) relative to the center of the parent cell |
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| 360 | ! (for m_parent_grid_ratio = 2, 3, 4, 5; dumc = 1/4, 1/3, 3/8, 2/5) |
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| 361 | ! |
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| 362 | l_parent_nest_id(l) = -1 |
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| 363 | if (m_parent_grid_id(l) .gt. 0) then |
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| 364 | do lp = 0, l-1 |
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| 365 | if ( (l_parent_nest_id(l) .eq. -1) .and. & |
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| 366 | (m_parent_grid_id(l) .eq. m_grid_id(lp)) ) then |
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| 367 | |
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| 368 | l_parent_nest_id(l) = lp |
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| 369 | m = m_parent_grid_ratio(l) |
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| 370 | dumc = real(m-1)/real(m*2) |
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| 371 | if (lp .eq. 0) then |
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| 372 | xmet0n(l) = xmet0 + dx*(i_parent_start(l)-dumc) |
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| 373 | ymet0n(l) = ymet0 + dy*(j_parent_start(l)-dumc) |
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| 374 | else |
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| 375 | xmet0n(l) = xmet0n(lp) + dxn(lp)*(i_parent_start(l)-dumc) |
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| 376 | ymet0n(l) = ymet0n(lp) + dyn(lp)*(j_parent_start(l)-dumc) |
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| 377 | end if |
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| 378 | end if |
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| 379 | end do |
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| 380 | end if |
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| 381 | if (idiagbb .gt. 0) write(*,'(/a,3i8)') & |
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| 382 | 'l, m_grid_id(l), m_parent_grid_id(l)', & |
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| 383 | l, m_grid_id(l), m_parent_grid_id(l) |
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| 384 | |
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| 385 | if (l_parent_nest_id(l) .eq. -1) then |
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| 386 | write(*,'(/a,i3/)') & |
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| 387 | 'gridcheck_nests fatal error -- ' // & |
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| 388 | 'parent grid not found for l =', l |
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| 389 | stop |
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| 390 | end if |
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| 391 | |
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| 392 | ! |
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| 393 | ! diagnostics for testing the nesting calculations |
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| 394 | ! (set idiagbb=0 to turn it off) |
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| 395 | ! |
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| 396 | lp = l_parent_nest_id(l) |
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| 397 | if (idiagbb .gt. 0) then |
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| 398 | write(*,'(a,2i8)') 'l_parent, m_grid_id(l_parent) ', & |
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| 399 | lp, m_grid_id(lp) |
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| 400 | write(*,'(a,2i8)') 'm_parent_grid_ratio(l) ', & |
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| 401 | m_parent_grid_ratio(l) |
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| 402 | write(*,'(a,i8,f11.2)') & |
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| 403 | 'i_parent_start(l), xi_... ', & |
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| 404 | i_parent_start(l), i_parent_start(l)-dumc |
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| 405 | write(*,'(a,i8,f11.2)') & |
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| 406 | 'j_parent_start(l), yj_... ', & |
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| 407 | j_parent_start(l), j_parent_start(l)-dumc |
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| 408 | end if |
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| 409 | !23456789012345678901234567890123456789012345678901234567890123456789012 |
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| 410 | |
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| 411 | if (idiagbb .gt. 0) then |
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| 412 | write(*,*) |
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| 413 | do jy = j_parent_start(l)-1, j_parent_start(l) |
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| 414 | do ix = i_parent_start(l)-1, i_parent_start(l) |
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| 415 | if (lp .eq. 0) then |
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| 416 | write(*,'(a,2i7,2f11.4)') 'parent i,j,lon,lat', & |
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| 417 | ix, jy, xlon2d(ix,jy), ylat2d(ix,jy) |
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| 418 | else |
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| 419 | write(*,'(a,2i7,2f11.4)') 'parent i,j,lon,lat', & |
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| 420 | ix, jy, xlon2dn(ix,jy,lp), ylat2dn(ix,jy,lp) |
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| 421 | end if |
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| 422 | end do |
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| 423 | end do |
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| 424 | |
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| 425 | dumc = real( (m_parent_grid_ratio(l)-1) )/ & |
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| 426 | real( (m_parent_grid_ratio(l)*2) ) |
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| 427 | dumx = i_parent_start(l) - dumc |
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| 428 | dumy = j_parent_start(l) - dumc |
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| 429 | call xyindex_to_ll_wrf( lp, dumx, dumy, xaux1, yaux1 ) |
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| 430 | write(*,'(a,2f7.2,2f11.4)') 'par. xi,yj,lon,lat', & |
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| 431 | dumx, dumy, xaux1, yaux1 |
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| 432 | |
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| 433 | write(*,*) |
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| 434 | write(*,'(a,2i7,2f11.4)') 'nest i,j,lon,lat', & |
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| 435 | 0, 0, xlon2dn(0,0,l), ylat2dn(0,0,l) |
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| 436 | write(*,*) |
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| 437 | |
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| 438 | dumx = (xmet0n(l) - xmet0)/dx |
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| 439 | dumy = (ymet0n(l) - ymet0)/dy |
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| 440 | call xyindex_to_ll_wrf( 0, dumx, dumy, xaux1, yaux1 ) |
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| 441 | write(*,'(a,2f7.2,2f11.4)') 'mot. xi,yj,lon,lat', & |
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| 442 | dumx, dumy, xaux1, yaux1 |
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| 443 | |
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| 444 | iduma = max( 0, ifix(dumx) ) |
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| 445 | idumb = max( 0, ifix(dumy) ) |
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| 446 | do jy = idumb, idumb+1 |
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| 447 | do ix = iduma, iduma+1 |
|---|
| 448 | write(*,'(a,2i7,2f11.4)') 'mother i,j,lon,lat', & |
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| 449 | ix, jy, xlon2d(ix,jy), ylat2d(ix,jy) |
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| 450 | end do |
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| 451 | end do |
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| 452 | end if |
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| 453 | |
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| 454 | |
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| 455 | |
|---|
| 456 | ! Output of grid info |
|---|
| 457 | !******************** |
|---|
| 458 | |
|---|
| 459 | write(*,'(/a,i2)') & |
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| 460 | 'gridcheck_nests -- nested domain #: ',l |
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| 461 | write(*,'(a,f12.1,a1,f12.1,a,f10.1)') & |
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| 462 | ' X coordinate range: ', & |
|---|
| 463 | xmet0n(l),' to ',xmet0n(l)+(nxn(l)-1)*dxn(l), & |
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| 464 | ' Grid distance: ',dxn(l) |
|---|
| 465 | write(*,'(a,f12.1,a1,f12.1,a,f10.1)') & |
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| 466 | ' Y coordinate range: ', & |
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| 467 | ymet0n(l),' to ',ymet0n(l)+(nyn(l)-1)*dyn(l), & |
|---|
| 468 | ' Grid distance: ',dyn(l) |
|---|
| 469 | write(*,*) |
|---|
| 470 | |
|---|
| 471 | |
|---|
| 472 | ! Determine, how much the resolutions in the nests are enhanced as |
|---|
| 473 | ! compared to the mother grid |
|---|
| 474 | !***************************************************************** |
|---|
| 475 | |
|---|
| 476 | xresoln(l)=dx/dxn(l) |
|---|
| 477 | yresoln(l)=dy/dyn(l) |
|---|
| 478 | |
|---|
| 479 | |
|---|
| 480 | ! Determine the mother grid coordinates of the corner points of the |
|---|
| 481 | ! nested grids |
|---|
| 482 | ! Convert first to geographical coordinates, then to grid coordinates |
|---|
| 483 | !******************************************************************** |
|---|
| 484 | |
|---|
| 485 | xaux1=xmet0n(l) |
|---|
| 486 | xaux2=xmet0n(l)+real(nxn(l)-1)*dxn(l) |
|---|
| 487 | yaux1=ymet0n(l) |
|---|
| 488 | yaux2=ymet0n(l)+real(nyn(l)-1)*dyn(l) |
|---|
| 489 | |
|---|
| 490 | xln(l)=(xaux1-xmet0)/dx |
|---|
| 491 | xrn(l)=(xaux2-xmet0)/dx |
|---|
| 492 | yln(l)=(yaux1-ymet0)/dy |
|---|
| 493 | yrn(l)=(yaux2-ymet0)/dy |
|---|
| 494 | |
|---|
| 495 | |
|---|
| 496 | if ((xln(l).lt.0.).or.(yln(l).lt.0.).or. & |
|---|
| 497 | (xrn(l).gt.real(nxmin1)).or.(yrn(l).gt.real(nymin1))) then |
|---|
| 498 | write(*,*) 'gridcheck_nests error' |
|---|
| 499 | write(*,*) 'Nested domain does not fit into mother domain' |
|---|
| 500 | write(*,*) 'Execution is terminated.' |
|---|
| 501 | stop |
|---|
| 502 | endif |
|---|
| 503 | |
|---|
| 504 | |
|---|
| 505 | ! check that the map projection routines are working |
|---|
| 506 | call test_xyindex_to_ll_wrf( l ) |
|---|
| 507 | |
|---|
| 508 | |
|---|
| 509 | ! Check, whether the heights of the model levels of the nested |
|---|
| 510 | ! wind fields are consistent with those of the mother domain. |
|---|
| 511 | ! If not, terminate model run. |
|---|
| 512 | !************************************************************* |
|---|
| 513 | |
|---|
| 514 | ! first read eta_w_wrf_nest, eta_u_wrf_nest, and p_top_wrf_nest |
|---|
| 515 | ! from the netcdf wrfout file |
|---|
| 516 | itime = 1 |
|---|
| 517 | |
|---|
| 518 | varname = 'ZNW' |
|---|
| 519 | do i = 1, ndims_max |
|---|
| 520 | lendim_exp(i) = 0 |
|---|
| 521 | lendim_max(i) = 1 |
|---|
| 522 | end do |
|---|
| 523 | lendim_exp(1) = nwz |
|---|
| 524 | lendim_max(1) = nwzmax |
|---|
| 525 | ndims_exp = 2 |
|---|
| 526 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
|---|
| 527 | varname, eta_w_wrf_nest, & |
|---|
| 528 | itime, & |
|---|
| 529 | ndims, ndims_exp, ndims_max, & |
|---|
| 530 | lendim, lendim_exp, lendim_max ) |
|---|
| 531 | if (ierr .ne. 0) then |
|---|
| 532 | write(*,*) |
|---|
| 533 | write(*,*) '*** checkgrid -- error doing ncread of ZNW' |
|---|
| 534 | stop |
|---|
| 535 | end if |
|---|
| 536 | |
|---|
| 537 | varname = 'ZNU' |
|---|
| 538 | do i = 1, ndims_max |
|---|
| 539 | lendim_exp(i) = 0 |
|---|
| 540 | lendim_max(i) = 1 |
|---|
| 541 | end do |
|---|
| 542 | lendim_exp(1) = nwz-1 |
|---|
| 543 | lendim_max(1) = nwzmax |
|---|
| 544 | ndims_exp = 2 |
|---|
| 545 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
|---|
| 546 | varname, eta_u_wrf_nest, & |
|---|
| 547 | itime, & |
|---|
| 548 | ndims, ndims_exp, ndims_max, & |
|---|
| 549 | lendim, lendim_exp, lendim_max ) |
|---|
| 550 | if (ierr .ne. 0) then |
|---|
| 551 | write(*,*) |
|---|
| 552 | write(*,*) '*** checkgrid -- error doing ncread of ZNU' |
|---|
| 553 | stop |
|---|
| 554 | end if |
|---|
| 555 | |
|---|
| 556 | varname = 'P_TOP' |
|---|
| 557 | do i = 1, ndims_max |
|---|
| 558 | lendim_exp(i) = 0 |
|---|
| 559 | lendim_max(i) = 1 |
|---|
| 560 | end do |
|---|
| 561 | lendim_exp(1) = 1 |
|---|
| 562 | lendim_max(1) = 6 |
|---|
| 563 | ndims_exp = 2 |
|---|
| 564 | if (ext_scalar .lt. 0) ndims_exp=1 |
|---|
| 565 | call read_ncwrfout_1realfield( ierr, idiagaa, fnamenc, & |
|---|
| 566 | varname, p_top_wrf_nest, & |
|---|
| 567 | itime, & |
|---|
| 568 | ndims, ndims_exp, ndims_max, & |
|---|
| 569 | lendim, lendim_exp, lendim_max ) |
|---|
| 570 | if (ierr .ne. 0) then |
|---|
| 571 | write(*,*) |
|---|
| 572 | write(*,*) '*** checkgrid -- error doing ncread of P_TOP' |
|---|
| 573 | stop |
|---|
| 574 | end if |
|---|
| 575 | |
|---|
| 576 | |
|---|
| 577 | do k = 1, nwz |
|---|
| 578 | duma = 3.0e-7*max( abs(eta_w_wrf(k)), 1.0e-30 ) |
|---|
| 579 | if (abs(eta_w_wrf(k)-eta_w_wrf_nest(k)) .gt. duma) then |
|---|
| 580 | write(*,*) & |
|---|
| 581 | 'FLEXPART gridcheck_nests error for nesting level',l |
|---|
| 582 | write(*,*) & |
|---|
| 583 | 'eta_w_wrf are not consistent with the mother domain' |
|---|
| 584 | write(*,*) 'k, eta_w_wrf(k), eta_w_wrf_nest(k) =', & |
|---|
| 585 | k, eta_w_wrf(k), eta_w_wrf_nest(k) |
|---|
| 586 | stop |
|---|
| 587 | endif |
|---|
| 588 | end do |
|---|
| 589 | |
|---|
| 590 | do k = 1, nwz-1 |
|---|
| 591 | duma = 3.0e-7*max( abs(eta_u_wrf(k)), 1.0e-30 ) |
|---|
| 592 | if (abs(eta_u_wrf(k)-eta_u_wrf_nest(k)) .gt. duma) then |
|---|
| 593 | write(*,*) & |
|---|
| 594 | 'FLEXPART gridcheck_nests error for nesting level',l |
|---|
| 595 | write(*,*) & |
|---|
| 596 | 'eta_u_wrf are not consistent with the mother domain' |
|---|
| 597 | write(*,*) 'k, eta_u_wrf(k), eta_u_wrf_nest(k) =', & |
|---|
| 598 | k, eta_u_wrf(k), eta_u_wrf_nest(k) |
|---|
| 599 | stop |
|---|
| 600 | endif |
|---|
| 601 | end do |
|---|
| 602 | |
|---|
| 603 | duma = 3.0e-7*max( abs(p_top_wrf), 1.0e-30 ) |
|---|
| 604 | if (abs(p_top_wrf-p_top_wrf_nest) .gt. duma) then |
|---|
| 605 | write(*,*) & |
|---|
| 606 | 'FLEXPART gridcheck_nests error for nesting level',l |
|---|
| 607 | write(*,*) & |
|---|
| 608 | 'p_top_wrf are not consistent with the mother domain' |
|---|
| 609 | write(*,*) 'p_top_wrf, p_top_wrf_nest', & |
|---|
| 610 | p_top_wrf, p_top_wrf_nest |
|---|
| 611 | stop |
|---|
| 612 | endif |
|---|
| 613 | |
|---|
| 614 | |
|---|
| 615 | ! done with nest l |
|---|
| 616 | enddo |
|---|
| 617 | |
|---|
| 618 | return |
|---|
| 619 | |
|---|
| 620 | |
|---|
| 621 | 999 write(*,*) |
|---|
| 622 | write(*,*) ' ###########################################'// & |
|---|
| 623 | '###### ' |
|---|
| 624 | write(*,*) ' FLEXPART_WRF subroutine gridcheck_nests: ' // & |
|---|
| 625 | 'nesting level ', l |
|---|
| 626 | write(*,*) ' can not open input data file ' |
|---|
| 627 | write(*,*) ' '//fnamenc |
|---|
| 628 | write(*,*) ' or, an error occured in subr. read_ncwrfout_gridinfo' |
|---|
| 629 | write(*,*) ' with ierr =', ierr |
|---|
| 630 | write(*,*) ' ###########################################'// & |
|---|
| 631 | '###### ' |
|---|
| 632 | stop |
|---|
| 633 | |
|---|
| 634 | end subroutine gridcheck_nests |
|---|
| 635 | |
|---|
| 636 | |
|---|
