| 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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