1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
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2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
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3 | |
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4 | subroutine readoutgrid_nest |
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5 | |
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6 | !***************************************************************************** |
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7 | ! * |
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8 | ! This routine reads the user specifications for the output nest. * |
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9 | ! * |
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10 | ! Author: A. Stohl * |
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11 | ! * |
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12 | ! 4 June 1996 * |
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13 | ! * |
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14 | !***************************************************************************** |
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15 | ! * |
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16 | ! Variables: * |
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17 | ! dxoutn,dyoutn grid distances of output nest * |
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18 | ! numxgridn,numygridn,numzgrid nest dimensions * |
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19 | ! outlon0n,outlat0n lower left corner of nest * |
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20 | ! outheight(maxzgrid) height levels of output grid [m] * |
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21 | ! * |
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22 | ! Constants: * |
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23 | ! unitoutgrid unit connected to file OUTGRID * |
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24 | ! * |
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25 | !***************************************************************************** |
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26 | |
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27 | use outg_mod |
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28 | use par_mod |
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29 | use com_mod |
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30 | |
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31 | implicit none |
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32 | |
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33 | integer :: stat |
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34 | real :: xr,xr1,yr,yr1 |
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35 | real,parameter :: eps=1.e-4 |
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36 | |
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37 | integer :: readerror |
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38 | |
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39 | ! declare namelist |
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40 | namelist /outgridn/ & |
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41 | outlon0n,outlat0n, & |
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42 | numxgridn,numygridn, & |
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43 | dxoutn,dyoutn |
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44 | |
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45 | ! helps identifying failed namelist input |
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46 | dxoutn=-1.0 |
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47 | |
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48 | ! Open the OUTGRID file and read output grid specifications |
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49 | !********************************************************** |
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50 | |
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51 | open(unitoutgrid,file=path(1)(1:length(1))//'OUTGRID_NEST',form='formatted',status='old',err=999) |
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52 | |
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53 | ! try namelist input |
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54 | read(unitoutgrid,outgridn,iostat=readerror) |
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55 | close(unitoutgrid) |
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56 | |
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57 | if ((dxoutn.le.0).or.(readerror.ne.0)) then |
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58 | |
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59 | open(unitoutgrid,file=path(1)(1:length(1))//'OUTGRID_NEST',status='old',err=999) |
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60 | call skplin(5,unitoutgrid) |
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61 | |
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62 | ! 1. Read horizontal grid specifications |
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63 | !**************************************** |
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64 | |
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65 | call skplin(3,unitoutgrid) |
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66 | read(unitoutgrid,'(4x,f11.4)') outlon0n |
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67 | call skplin(3,unitoutgrid) |
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68 | read(unitoutgrid,'(4x,f11.4)') outlat0n |
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69 | call skplin(3,unitoutgrid) |
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70 | read(unitoutgrid,'(4x,i5)') numxgridn |
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71 | call skplin(3,unitoutgrid) |
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72 | read(unitoutgrid,'(4x,i5)') numygridn |
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73 | call skplin(3,unitoutgrid) |
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74 | read(unitoutgrid,'(4x,f12.5)') dxoutn |
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75 | call skplin(3,unitoutgrid) |
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76 | read(unitoutgrid,'(4x,f12.5)') dyoutn |
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77 | |
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78 | close(unitoutgrid) |
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79 | endif |
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80 | |
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81 | ! write outgrid_nest file in namelist format to output directory if requested |
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82 | if (nmlout.and.lroot) then |
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83 | open(unitoutgrid,file=path(2)(1:length(2))//'OUTGRID_NEST.namelist',err=1000) |
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84 | write(unitoutgrid,nml=outgridn) |
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85 | close(unitoutgrid) |
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86 | endif |
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87 | |
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88 | allocate(orooutn(0:numxgridn-1,0:numygridn-1),stat=stat) |
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89 | if (stat.ne.0) write(*,*)'ERROR: could not allocate orooutn' |
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90 | allocate(arean(0:numxgridn-1,0:numygridn-1),stat=stat) |
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91 | if (stat.ne.0) write(*,*)'ERROR: could not allocate arean' |
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92 | allocate(volumen(0:numxgridn-1,0:numygridn-1,numzgrid),stat=stat) |
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93 | if (stat.ne.0) write(*,*)'ERROR: could not allocate volumen' |
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94 | |
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95 | ! Check validity of output grid (shall be within model domain) |
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96 | !************************************************************* |
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97 | |
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98 | xr=outlon0n+real(numxgridn)*dxoutn |
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99 | yr=outlat0n+real(numygridn)*dyoutn |
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100 | xr1=xlon0+real(nxmin1)*dx |
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101 | yr1=ylat0+real(nymin1)*dy |
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102 | if ((outlon0n+eps.lt.xlon0).or.(outlat0n+eps.lt.ylat0) & |
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103 | .or.(xr.gt.xr1+eps).or.(yr.gt.yr1+eps)) then |
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104 | write(*,*) ' #### FLEXPART MODEL ERROR! PART OF OUTPUT ####' |
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105 | write(*,*) ' #### NEST IS OUTSIDE MODEL DOMAIN. CHANGE ####' |
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106 | write(*,*) ' #### FILE OUTGRID IN DIRECTORY ####' |
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107 | write(*,'(a)') path(1)(1:length(1)) |
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108 | stop |
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109 | endif |
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110 | |
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111 | xoutshiftn=xlon0-outlon0n |
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112 | youtshiftn=ylat0-outlat0n |
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113 | return |
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114 | |
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115 | 999 write(*,*) ' #### FLEXPART MODEL ERROR! FILE "OUTGRID" #### ' |
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116 | write(*,*) ' #### CANNOT BE OPENED IN THE DIRECTORY #### ' |
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117 | write(*,'(a)') path(1)(1:length(1)) |
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118 | stop |
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119 | |
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120 | 1000 write(*,*) ' #### FLEXPART MODEL ERROR! FILE "OUTGRID" #### ' |
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121 | write(*,*) ' #### CANNOT BE OPENED IN THE DIRECTORY #### ' |
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122 | write(*,'(a)') path(2)(1:length(2)) |
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123 | stop |
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124 | |
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125 | end subroutine readoutgrid_nest |
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