| 1 | !********************************************************************** |
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| 2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
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| 3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
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| 4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
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| 5 | ! * |
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| 6 | ! This file is part of FLEXPART. * |
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| 7 | ! * |
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| 8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
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| 9 | ! it under the terms of the GNU General Public License as published by* |
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| 10 | ! the Free Software Foundation, either version 3 of the License, or * |
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| 11 | ! (at your option) any later version. * |
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| 12 | ! * |
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| 13 | ! FLEXPART is distributed in the hope that it will be useful, * |
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| 14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 16 | ! GNU General Public License for more details. * |
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| 17 | ! * |
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| 18 | ! You should have received a copy of the GNU General Public License * |
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| 19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
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| 20 | !********************************************************************** |
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| 21 | |
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| 22 | subroutine gridcheck |
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| 23 | |
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| 24 | !********************************************************************** |
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| 25 | ! * |
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| 26 | ! FLEXPART MODEL SUBROUTINE GRIDCHECK * |
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| 27 | ! * |
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| 28 | !********************************************************************** |
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| 29 | ! * |
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| 30 | ! AUTHOR: G. WOTAWA * |
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| 31 | ! DATE: 1997-08-06 * |
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| 32 | ! LAST UPDATE: 1997-10-10 * |
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| 33 | ! * |
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| 34 | ! Update: 1999-02-08, global fields allowed, A. Stohl* |
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| 35 | ! CHANGE: 11/01/2008, Harald Sodemann, GRIB1/2 input with * |
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| 36 | ! ECMWF grib_api * |
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| 37 | ! CHANGE: 03/12/2008, Harald Sodemann, update to f90 with * |
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| 38 | ! ECMWF grib_api * |
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| 39 | ! * |
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| 40 | !********************************************************************** |
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| 41 | ! * |
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| 42 | ! DESCRIPTION: * |
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| 43 | ! * |
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| 44 | ! THIS SUBROUTINE DETERMINES THE GRID SPECIFICATIONS (LOWER LEFT * |
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| 45 | ! LONGITUDE, LOWER LEFT LATITUDE, NUMBER OF GRID POINTS, GRID DIST- * |
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| 46 | ! ANCE AND VERTICAL DISCRETIZATION OF THE ECMWF MODEL) FROM THE * |
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| 47 | ! GRIB HEADER OF THE FIRST INPUT FILE. THE CONSISTANCY (NO CHANGES * |
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| 48 | ! WITHIN ONE FLEXPART RUN) IS CHECKED IN THE ROUTINE "READWIND" AT * |
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| 49 | ! ANY CALL. * |
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| 50 | ! * |
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| 51 | ! XLON0 geographical longitude of lower left gridpoint * |
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| 52 | ! YLAT0 geographical latitude of lower left gridpoint * |
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| 53 | ! NX number of grid points x-direction * |
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| 54 | ! NY number of grid points y-direction * |
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| 55 | ! DX grid distance x-direction * |
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| 56 | ! DY grid distance y-direction * |
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| 57 | ! NUVZ number of grid points for horizontal wind * |
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| 58 | ! components in z direction * |
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| 59 | ! NWZ number of grid points for vertical wind * |
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| 60 | ! component in z direction * |
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| 61 | ! sizesouth, sizenorth give the map scale (i.e. number of virtual grid* |
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| 62 | ! points of the polar stereographic grid): * |
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| 63 | ! used to check the CFL criterion * |
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| 64 | ! UVHEIGHT(1)- heights of gridpoints where u and v are * |
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| 65 | ! UVHEIGHT(NUVZ) given * |
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| 66 | ! WHEIGHT(1)- heights of gridpoints where w is given * |
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| 67 | ! WHEIGHT(NWZ) * |
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| 68 | ! * |
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| 69 | !********************************************************************** |
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| 70 | |
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| 71 | use grib_api |
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| 72 | use par_mod |
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| 73 | use com_mod |
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| 74 | use conv_mod |
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| 75 | use cmapf_mod, only: stlmbr,stcm2p |
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| 76 | |
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| 77 | implicit none |
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| 78 | |
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| 79 | !HSO parameters for grib_api |
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| 80 | integer :: ifile |
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| 81 | integer :: iret |
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| 82 | integer :: igrib |
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| 83 | integer :: gotGrid |
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| 84 | real(kind=4) :: xaux1,xaux2,yaux1,yaux2 |
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| 85 | real(kind=8) :: xaux1in,xaux2in,yaux1in,yaux2in |
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| 86 | integer :: gribVer,parCat,parNum,typSurf,valSurf,discipl,parId |
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| 87 | !HSO end |
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| 88 | integer :: ix,jy,i,ifn,ifield,j,k,iumax,iwmax,numskip |
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| 89 | real :: sizesouth,sizenorth,xauxa,pint,conversion_factor |
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| 90 | |
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| 91 | ! VARIABLES AND ARRAYS NEEDED FOR GRIB DECODING |
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| 92 | |
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| 93 | ! dimension of isec2 at least (22+n), where n is the number of parallels or |
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| 94 | ! meridians in a quasi-regular (reduced) Gaussian or lat/long grid |
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| 95 | |
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| 96 | ! dimension of zsec2 at least (10+nn), where nn is the number of vertical |
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| 97 | ! coordinate parameters |
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| 98 | |
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| 99 | integer :: isec1(56),isec2(22+nxmax+nymax) |
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| 100 | real(kind=4) :: zsec2(60+2*nuvzmax),zsec4(jpunp) |
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| 101 | character(len=1) :: opt |
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| 102 | |
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| 103 | !HSO grib api error messages |
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| 104 | character(len=24) :: gribErrorMsg = 'Error reading grib file' |
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| 105 | character(len=20) :: gribFunction = 'gridcheck' |
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| 106 | |
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| 107 | |
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| 108 | iumax=0 |
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| 109 | iwmax=0 |
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| 110 | |
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| 111 | if(ideltas.gt.0) then |
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| 112 | ifn=1 |
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| 113 | else |
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| 114 | ifn=numbwf |
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| 115 | endif |
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| 116 | ! |
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| 117 | ! OPENING OF DATA FILE (GRIB CODE) |
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| 118 | ! |
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| 119 | 5 call grib_open_file(ifile,path(3)(1:length(3)) & |
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| 120 | //trim(wfname(ifn)),'r',iret) |
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| 121 | if (iret.ne.GRIB_SUCCESS) then |
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| 122 | goto 999 ! ERROR DETECTED |
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| 123 | endif |
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| 124 | !turn on support for multi fields messages |
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| 125 | !call grib_multi_support_on |
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| 126 | |
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| 127 | gotGrid=0 |
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| 128 | ifield=0 |
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| 129 | 10 ifield=ifield+1 |
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| 130 | |
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| 131 | ! |
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| 132 | ! GET NEXT FIELDS |
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| 133 | ! |
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| 134 | call grib_new_from_file(ifile,igrib,iret) |
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| 135 | if (iret.eq.GRIB_END_OF_FILE ) then |
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| 136 | goto 30 ! EOF DETECTED |
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| 137 | elseif (iret.ne.GRIB_SUCCESS) then |
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| 138 | goto 999 ! ERROR DETECTED |
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| 139 | endif |
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| 140 | |
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| 141 | !first see if we read GRIB1 or GRIB2 |
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| 142 | call grib_get_int(igrib,'editionNumber',gribVer,iret) |
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| 143 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 144 | |
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| 145 | if (gribVer.eq.1) then ! GRIB Edition 1 |
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| 146 | |
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| 147 | !print*,'GRiB Edition 1' |
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| 148 | !read the grib2 identifiers |
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| 149 | call grib_get_int(igrib,'indicatorOfParameter',isec1(6),iret) |
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| 150 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 151 | call grib_get_int(igrib,'level',isec1(8),iret) |
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| 152 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 153 | |
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| 154 | !change code for etadot to code for omega |
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| 155 | if (isec1(6).eq.77) then |
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| 156 | isec1(6)=135 |
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| 157 | endif |
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| 158 | |
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| 159 | !print*,isec1(6),isec1(8) |
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| 160 | |
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| 161 | else |
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| 162 | |
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| 163 | !print*,'GRiB Edition 2' |
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| 164 | !read the grib2 identifiers |
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| 165 | call grib_get_int(igrib,'discipline',discipl,iret) |
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| 166 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 167 | call grib_get_int(igrib,'parameterCategory',parCat,iret) |
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| 168 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 169 | call grib_get_int(igrib,'parameterNumber',parNum,iret) |
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| 170 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 171 | call grib_get_int(igrib,'typeOfFirstFixedSurface',typSurf,iret) |
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| 172 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 173 | call grib_get_int(igrib,'level',valSurf,iret) |
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| 174 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 175 | call grib_get_int(igrib,'paramId',parId,iret) |
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| 176 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 177 | |
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| 178 | !print*,discipl,parCat,parNum,typSurf,valSurf |
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| 179 | |
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| 180 | !convert to grib1 identifiers |
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| 181 | isec1(6)=-1 |
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| 182 | isec1(7)=-1 |
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| 183 | isec1(8)=-1 |
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| 184 | isec1(8)=valSurf ! level |
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| 185 | if ((parCat.eq.0).and.(parNum.eq.0).and.(typSurf.eq.105)) then ! T |
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| 186 | isec1(6)=130 ! indicatorOfParameter |
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| 187 | elseif ((parCat.eq.2).and.(parNum.eq.2).and.(typSurf.eq.105)) then ! U |
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| 188 | isec1(6)=131 ! indicatorOfParameter |
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| 189 | elseif ((parCat.eq.2).and.(parNum.eq.3).and.(typSurf.eq.105)) then ! V |
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| 190 | isec1(6)=132 ! indicatorOfParameter |
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| 191 | elseif ((parCat.eq.1).and.(parNum.eq.0).and.(typSurf.eq.105)) then ! Q |
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| 192 | isec1(6)=133 ! indicatorOfParameter |
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| 193 | !ZHG FOR CLOUDS FROM GRIB |
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| 194 | elseif ((parCat.eq.1).and.(parNum.eq.83).and.(typSurf.eq.105)) then ! clwc |
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| 195 | isec1(6)=246 ! indicatorOfParameter |
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| 196 | ! readclouds=.true. |
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| 197 | ! sumclouds=.false. |
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| 198 | elseif ((parCat.eq.1).and.(parNum.eq.84).and.(typSurf.eq.105)) then ! ciwc |
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| 199 | isec1(6)=247 ! indicatorOfParameter |
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| 200 | !ZHG end |
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| 201 | ! ESO qc(=clwc+ciwc) |
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| 202 | elseif ((parCat.eq.201).and.(parNum.eq.31).and.(typSurf.eq.105)) then ! qc |
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| 203 | isec1(6)=201031 ! indicatorOfParameter |
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| 204 | ! readclouds=.true. |
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| 205 | ! sumclouds=.true. |
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| 206 | elseif ((parCat.eq.3).and.(parNum.eq.0).and.(typSurf.eq.1)) then !SP |
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| 207 | isec1(6)=134 ! indicatorOfParameter |
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| 208 | elseif ((parCat.eq.2).and.(parNum.eq.32)) then ! W, actually eta dot |
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| 209 | isec1(6)=135 ! indicatorOfParameter |
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| 210 | elseif ((parCat.eq.128).and.(parNum.eq.77)) then ! W, actually eta dot |
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| 211 | isec1(6)=135 ! indicatorOfParameter |
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| 212 | elseif ((parCat.eq.3).and.(parNum.eq.0).and.(typSurf.eq.101)) then !SLP |
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| 213 | isec1(6)=151 ! indicatorOfParameter |
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| 214 | elseif ((parCat.eq.2).and.(parNum.eq.2).and.(typSurf.eq.103)) then ! 10U |
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| 215 | isec1(6)=165 ! indicatorOfParameter |
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| 216 | elseif ((parCat.eq.2).and.(parNum.eq.3).and.(typSurf.eq.103)) then ! 10V |
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| 217 | isec1(6)=166 ! indicatorOfParameter |
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| 218 | elseif ((parCat.eq.0).and.(parNum.eq.0).and.(typSurf.eq.103)) then ! 2T |
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| 219 | isec1(6)=167 ! indicatorOfParameter |
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| 220 | elseif ((parCat.eq.0).and.(parNum.eq.6).and.(typSurf.eq.103)) then ! 2D |
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| 221 | isec1(6)=168 ! indicatorOfParameter |
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| 222 | elseif ((parCat.eq.1).and.(parNum.eq.11).and.(typSurf.eq.1)) then ! SD |
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| 223 | isec1(6)=141 ! indicatorOfParameter |
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| 224 | elseif ((parCat.eq.6).and.(parNum.eq.1) .or. parId .eq. 164) then ! CC |
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| 225 | isec1(6)=164 ! indicatorOfParameter |
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| 226 | elseif ((parCat.eq.1).and.(parNum.eq.9) .or. parId .eq. 142) then ! LSP |
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| 227 | isec1(6)=142 ! indicatorOfParameter |
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| 228 | elseif ((parCat.eq.1).and.(parNum.eq.10)) then ! CP |
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| 229 | isec1(6)=143 ! indicatorOfParameter |
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| 230 | elseif ((parCat.eq.0).and.(parNum.eq.11).and.(typSurf.eq.1)) then ! SHF |
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| 231 | isec1(6)=146 ! indicatorOfParameter |
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| 232 | elseif ((parCat.eq.4).and.(parNum.eq.9).and.(typSurf.eq.1)) then ! SR |
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| 233 | isec1(6)=176 ! indicatorOfParameter |
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| 234 | elseif ((parCat.eq.2).and.(parNum.eq.17) .or. parId .eq. 180) then ! EWSS |
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| 235 | isec1(6)=180 ! indicatorOfParameter |
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| 236 | elseif ((parCat.eq.2).and.(parNum.eq.18) .or. parId .eq. 181) then ! NSSS |
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| 237 | isec1(6)=181 ! indicatorOfParameter |
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| 238 | elseif ((parCat.eq.3).and.(parNum.eq.4)) then ! ORO |
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| 239 | isec1(6)=129 ! indicatorOfParameter |
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| 240 | elseif ((parCat.eq.3).and.(parNum.eq.7) .or. parId .eq. 160) then ! SDO |
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| 241 | isec1(6)=160 ! indicatorOfParameter |
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| 242 | elseif ((discipl.eq.2).and.(parCat.eq.0).and.(parNum.eq.0).and. & |
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| 243 | (typSurf.eq.1)) then ! LSM |
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| 244 | isec1(6)=172 ! indicatorOfParameter |
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| 245 | else |
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| 246 | print*,'***ERROR: undefined GRiB2 message found!',discipl, & |
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| 247 | parCat,parNum,typSurf |
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| 248 | endif |
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| 249 | if(parId .ne. isec1(6) .and. parId .ne. 77) then |
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| 250 | write(*,*) 'parId',parId, 'isec1(6)',isec1(6) |
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| 251 | ! stop |
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| 252 | endif |
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| 253 | |
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| 254 | endif |
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| 255 | |
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| 256 | !get the size and data of the values array |
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| 257 | if (isec1(6).ne.-1) then |
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| 258 | call grib_get_real4_array(igrib,'values',zsec4,iret) |
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| 259 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 260 | endif |
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| 261 | |
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| 262 | if (ifield.eq.1) then |
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| 263 | |
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| 264 | !HSO get the required fields from section 2 in a gribex compatible manner |
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| 265 | call grib_get_int(igrib,'numberOfPointsAlongAParallel', & |
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| 266 | isec2(2),iret) |
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| 267 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 268 | call grib_get_int(igrib,'numberOfPointsAlongAMeridian', & |
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| 269 | isec2(3),iret) |
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| 270 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 271 | call grib_get_real8(igrib,'longitudeOfFirstGridPointInDegrees', & |
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| 272 | xaux1in,iret) |
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| 273 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 274 | call grib_get_int(igrib,'numberOfVerticalCoordinateValues', & |
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| 275 | isec2(12),iret) |
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| 276 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 277 | |
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| 278 | ! get the size and data of the vertical coordinate array |
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| 279 | call grib_get_real4_array(igrib,'pv',zsec2,iret) |
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| 280 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 281 | |
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| 282 | nxfield=isec2(2) |
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| 283 | ny=isec2(3) |
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| 284 | nlev_ec=isec2(12)/2-1 |
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| 285 | endif |
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| 286 | |
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| 287 | !HSO get the second part of the grid dimensions only from GRiB1 messages |
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| 288 | if (isec1(6) .eq. 167 .and. (gotGrid.eq.0)) then |
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| 289 | call grib_get_real8(igrib,'longitudeOfLastGridPointInDegrees', & |
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| 290 | xaux2in,iret) |
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| 291 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 292 | call grib_get_real8(igrib,'latitudeOfLastGridPointInDegrees', & |
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| 293 | yaux1in,iret) |
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| 294 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 295 | call grib_get_real8(igrib,'latitudeOfFirstGridPointInDegrees', & |
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| 296 | yaux2in,iret) |
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| 297 | call grib_check(iret,gribFunction,gribErrorMsg) |
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| 298 | xaux1=xaux1in |
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| 299 | xaux2=xaux2in |
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| 300 | yaux1=yaux1in |
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| 301 | yaux2=yaux2in |
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| 302 | if (xaux1.gt.180.) xaux1=xaux1-360.0 |
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| 303 | if (xaux2.gt.180.) xaux2=xaux2-360.0 |
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| 304 | if (xaux1.lt.-180.) xaux1=xaux1+360.0 |
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| 305 | if (xaux2.lt.-180.) xaux2=xaux2+360.0 |
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| 306 | if (xaux2.lt.xaux1) xaux2=xaux2+360.0 |
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| 307 | xlon0=xaux1 |
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| 308 | ylat0=yaux1 |
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| 309 | dx=(xaux2-xaux1)/real(nxfield-1) |
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| 310 | dy=(yaux2-yaux1)/real(ny-1) |
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| 311 | dxconst=180./(dx*r_earth*pi) |
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| 312 | dyconst=180./(dy*r_earth*pi) |
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| 313 | gotGrid=1 |
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| 314 | ! Check whether fields are global |
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| 315 | ! If they contain the poles, specify polar stereographic map |
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| 316 | ! projections using the stlmbr- and stcm2p-calls |
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| 317 | !*********************************************************** |
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| 318 | |
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| 319 | xauxa=abs(xaux2+dx-360.-xaux1) |
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| 320 | if (xauxa.lt.0.001) then |
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| 321 | nx=nxfield+1 ! field is cyclic |
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| 322 | xglobal=.true. |
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| 323 | if (abs(nxshift).ge.nx) & |
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| 324 | stop 'nxshift in file par_mod is too large' |
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| 325 | xlon0=xlon0+real(nxshift)*dx |
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| 326 | else |
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| 327 | nx=nxfield |
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| 328 | xglobal=.false. |
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| 329 | if (nxshift.ne.0) & |
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| 330 | stop 'nxshift (par_mod) must be zero for non-global domain' |
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| 331 | endif |
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| 332 | nxmin1=nx-1 |
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| 333 | nymin1=ny-1 |
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| 334 | if (xlon0.gt.180.) xlon0=xlon0-360. |
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| 335 | xauxa=abs(yaux1+90.) |
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| 336 | if (xglobal.and.xauxa.lt.0.001) then |
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| 337 | sglobal=.true. ! field contains south pole |
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| 338 | ! Enhance the map scale by factor 3 (*2=6) compared to north-south |
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| 339 | ! map scale |
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| 340 | sizesouth=6.*(switchsouth+90.)/dy |
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| 341 | call stlmbr(southpolemap,-90.,0.) |
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| 342 | call stcm2p(southpolemap,0.,0.,switchsouth,0.,sizesouth, & |
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| 343 | sizesouth,switchsouth,180.) |
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| 344 | switchsouthg=(switchsouth-ylat0)/dy |
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| 345 | else |
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| 346 | sglobal=.false. |
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| 347 | switchsouthg=999999. |
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| 348 | endif |
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| 349 | xauxa=abs(yaux2-90.) |
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| 350 | if (xglobal.and.xauxa.lt.0.001) then |
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| 351 | nglobal=.true. ! field contains north pole |
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| 352 | ! Enhance the map scale by factor 3 (*2=6) compared to north-south |
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| 353 | ! map scale |
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| 354 | sizenorth=6.*(90.-switchnorth)/dy |
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| 355 | call stlmbr(northpolemap,90.,0.) |
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| 356 | call stcm2p(northpolemap,0.,0.,switchnorth,0.,sizenorth, & |
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| 357 | sizenorth,switchnorth,180.) |
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| 358 | switchnorthg=(switchnorth-ylat0)/dy |
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| 359 | else |
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| 360 | nglobal=.false. |
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| 361 | switchnorthg=999999. |
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| 362 | endif |
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| 363 | if (nxshift.lt.0) & |
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| 364 | stop 'nxshift (par_mod) must not be negative' |
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| 365 | if (nxshift.ge.nxfield) stop 'nxshift (par_mod) too large' |
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| 366 | endif ! gotGrid |
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| 367 | |
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| 368 | k=isec1(8) |
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| 369 | if(isec1(6).eq.131) iumax=max(iumax,nlev_ec-k+1) |
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| 370 | if(isec1(6).eq.135) iwmax=max(iwmax,nlev_ec-k+1) |
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| 371 | |
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| 372 | if(isec1(6).eq.129) then |
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| 373 | do jy=0,ny-1 |
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| 374 | do ix=0,nxfield-1 |
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| 375 | oro(ix,jy)=zsec4(nxfield*(ny-jy-1)+ix+1)/ga |
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| 376 | end do |
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| 377 | end do |
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| 378 | endif |
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| 379 | if(isec1(6).eq.172) then |
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| 380 | do jy=0,ny-1 |
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| 381 | do ix=0,nxfield-1 |
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| 382 | lsm(ix,jy)=zsec4(nxfield*(ny-jy-1)+ix+1) |
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| 383 | end do |
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| 384 | end do |
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| 385 | endif |
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| 386 | if(isec1(6).eq.160) then |
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| 387 | do jy=0,ny-1 |
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| 388 | do ix=0,nxfield-1 |
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| 389 | excessoro(ix,jy)=zsec4(nxfield*(ny-jy-1)+ix+1) |
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| 390 | end do |
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| 391 | end do |
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| 392 | endif |
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| 393 | |
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| 394 | call grib_release(igrib) |
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| 395 | goto 10 !! READ NEXT LEVEL OR PARAMETER |
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| 396 | ! |
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| 397 | ! CLOSING OF INPUT DATA FILE |
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| 398 | ! |
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| 399 | |
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| 400 | 30 call grib_close_file(ifile) |
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| 401 | |
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| 402 | !error message if no fields found with correct first longitude in it |
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| 403 | if (gotGrid.eq.0) then |
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| 404 | print*,'***ERROR: input file needs to contain GRiB1 formatted'// & |
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| 405 | 'messages' |
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| 406 | stop |
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| 407 | endif |
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| 408 | |
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| 409 | nuvz=iumax |
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| 410 | nwz =iwmax |
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| 411 | if(nuvz.eq.nlev_ec) nwz=nlev_ec+1 |
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| 412 | |
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| 413 | if (nx.gt.nxmax) then |
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| 414 | write(*,*) 'FLEXPART error: Too many grid points in x direction.' |
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| 415 | write(*,*) 'Reduce resolution of wind fields.' |
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| 416 | write(*,*) 'Or change parameter settings in file par_mod.' |
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| 417 | write(*,*) nx,nxmax |
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| 418 | stop |
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| 419 | endif |
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| 420 | |
|---|
| 421 | if (ny.gt.nymax) then |
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| 422 | write(*,*) 'FLEXPART error: Too many grid points in y direction.' |
|---|
| 423 | write(*,*) 'Reduce resolution of wind fields.' |
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| 424 | write(*,*) 'Or change parameter settings in file par_mod.' |
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| 425 | write(*,*) ny,nymax |
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| 426 | stop |
|---|
| 427 | endif |
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| 428 | |
|---|
| 429 | if (nuvz+1.gt.nuvzmax) then |
|---|
| 430 | write(*,*) 'FLEXPART error: Too many u,v grid points in z '// & |
|---|
| 431 | 'direction.' |
|---|
| 432 | write(*,*) 'Reduce resolution of wind fields.' |
|---|
| 433 | write(*,*) 'Or change parameter settings in file par_mod.' |
|---|
| 434 | write(*,*) nuvz+1,nuvzmax |
|---|
| 435 | stop |
|---|
| 436 | endif |
|---|
| 437 | |
|---|
| 438 | if (nwz.gt.nwzmax) then |
|---|
| 439 | write(*,*) 'FLEXPART error: Too many w grid points in z '// & |
|---|
| 440 | 'direction.' |
|---|
| 441 | write(*,*) 'Reduce resolution of wind fields.' |
|---|
| 442 | write(*,*) 'Or change parameter settings in file par_mod.' |
|---|
| 443 | write(*,*) nwz,nwzmax |
|---|
| 444 | stop |
|---|
| 445 | endif |
|---|
| 446 | |
|---|
| 447 | ! If desired, shift all grids by nxshift grid cells |
|---|
| 448 | !************************************************** |
|---|
| 449 | |
|---|
| 450 | if (xglobal) then |
|---|
| 451 | call shift_field_0(oro,nxfield,ny) |
|---|
| 452 | call shift_field_0(lsm,nxfield,ny) |
|---|
| 453 | call shift_field_0(excessoro,nxfield,ny) |
|---|
| 454 | endif |
|---|
| 455 | |
|---|
| 456 | ! Output of grid info |
|---|
| 457 | !******************** |
|---|
| 458 | |
|---|
| 459 | if (lroot) then |
|---|
| 460 | write(*,'(a,2i7)') ' Vertical levels in ECMWF data: ', & |
|---|
| 461 | nuvz+1,nwz |
|---|
| 462 | write(*,*) |
|---|
| 463 | write(*,'(a)') ' Mother domain:' |
|---|
| 464 | write(*,'(a,f10.5,a,f10.5,a,f10.5)') ' Longitude range: ', & |
|---|
| 465 | xlon0,' to ',xlon0+(nx-1)*dx,' Grid distance: ',dx |
|---|
| 466 | write(*,'(a,f10.5,a,f10.5,a,f10.5)') ' Latitude range : ', & |
|---|
| 467 | ylat0,' to ',ylat0+(ny-1)*dy,' Grid distance: ',dy |
|---|
| 468 | write(*,*) |
|---|
| 469 | end if |
|---|
| 470 | |
|---|
| 471 | ! CALCULATE VERTICAL DISCRETIZATION OF ECMWF MODEL |
|---|
| 472 | ! PARAMETER akm,bkm DESCRIBE THE HYBRID "ETA" COORDINATE SYSTEM |
|---|
| 473 | |
|---|
| 474 | numskip=nlev_ec-nuvz ! number of ecmwf model layers not used |
|---|
| 475 | ! by trajectory model |
|---|
| 476 | !do 8940 i=1,244 |
|---|
| 477 | ! write (*,*) 'zsec2:',i,ifield,zsec2(i),numskip |
|---|
| 478 | !940 continue |
|---|
| 479 | ! stop |
|---|
| 480 | ! SEC SEC SEC |
|---|
| 481 | ! for unknown reason zsec 1 to 10 is filled in this version |
|---|
| 482 | ! compared to the old one |
|---|
| 483 | ! SEC SEC SE |
|---|
| 484 | do i=1,nwz |
|---|
| 485 | j=numskip+i |
|---|
| 486 | k=nlev_ec+1+numskip+i |
|---|
| 487 | akm(nwz-i+1)=zsec2(j) |
|---|
| 488 | ! write (*,*) 'ifield:',ifield,k,j,zsec2(10+j) |
|---|
| 489 | bkm(nwz-i+1)=zsec2(k) |
|---|
| 490 | end do |
|---|
| 491 | |
|---|
| 492 | ! |
|---|
| 493 | ! CALCULATION OF AKZ, BKZ |
|---|
| 494 | ! AKZ,BKZ: model discretization parameters at the center of each model |
|---|
| 495 | ! layer |
|---|
| 496 | ! |
|---|
| 497 | ! Assign the 10 m winds to an artificial model level with akz=0 and bkz=1.0, |
|---|
| 498 | ! i.e. ground level |
|---|
| 499 | !***************************************************************************** |
|---|
| 500 | |
|---|
| 501 | akz(1)=0. |
|---|
| 502 | bkz(1)=1.0 |
|---|
| 503 | do i=1,nuvz |
|---|
| 504 | akz(i+1)=0.5*(akm(i+1)+akm(i)) |
|---|
| 505 | bkz(i+1)=0.5*(bkm(i+1)+bkm(i)) |
|---|
| 506 | end do |
|---|
| 507 | nuvz=nuvz+1 |
|---|
| 508 | |
|---|
| 509 | ! NOTE: In FLEXPART versions up to 4.0, the number of model levels was doubled |
|---|
| 510 | ! upon the transformation to z levels. In order to save computer memory, this is |
|---|
| 511 | ! not done anymore in the standard version. However, this option can still be |
|---|
| 512 | ! switched on by replacing the following lines with those below, that are |
|---|
| 513 | ! currently commented out. For this, similar changes are necessary in |
|---|
| 514 | ! verttransform.f and verttranform_nests.f |
|---|
| 515 | !***************************************************************************** |
|---|
| 516 | |
|---|
| 517 | nz=nuvz |
|---|
| 518 | if (nz.gt.nzmax) stop 'nzmax too small' |
|---|
| 519 | do i=1,nuvz |
|---|
| 520 | aknew(i)=akz(i) |
|---|
| 521 | bknew(i)=bkz(i) |
|---|
| 522 | end do |
|---|
| 523 | |
|---|
| 524 | ! Switch on following lines to use doubled vertical resolution |
|---|
| 525 | !************************************************************* |
|---|
| 526 | !nz=nuvz+nwz-1 |
|---|
| 527 | !if (nz.gt.nzmax) stop 'nzmax too small' |
|---|
| 528 | !do 100 i=1,nwz |
|---|
| 529 | ! aknew(2*(i-1)+1)=akm(i) |
|---|
| 530 | !00 bknew(2*(i-1)+1)=bkm(i) |
|---|
| 531 | !do 110 i=2,nuvz |
|---|
| 532 | ! aknew(2*(i-1))=akz(i) |
|---|
| 533 | !10 bknew(2*(i-1))=bkz(i) |
|---|
| 534 | ! End doubled vertical resolution |
|---|
| 535 | |
|---|
| 536 | |
|---|
| 537 | ! Determine the uppermost level for which the convection scheme shall be applied |
|---|
| 538 | ! by assuming that there is no convection above 50 hPa (for standard SLP) |
|---|
| 539 | !***************************************************************************** |
|---|
| 540 | |
|---|
| 541 | do i=1,nuvz-2 |
|---|
| 542 | pint=akz(i)+bkz(i)*101325. |
|---|
| 543 | if (pint.lt.5000.) goto 96 |
|---|
| 544 | end do |
|---|
| 545 | 96 nconvlev=i |
|---|
| 546 | if (nconvlev.gt.nconvlevmax-1) then |
|---|
| 547 | nconvlev=nconvlevmax-1 |
|---|
| 548 | write(*,*) 'Attention, convection only calculated up to ', & |
|---|
| 549 | akz(nconvlev)+bkz(nconvlev)*1013.25,' hPa' |
|---|
| 550 | endif |
|---|
| 551 | |
|---|
| 552 | return |
|---|
| 553 | |
|---|
| 554 | 999 write(*,*) |
|---|
| 555 | write(*,*) ' ###########################################'// & |
|---|
| 556 | '###### ' |
|---|
| 557 | write(*,*) ' TRAJECTORY MODEL SUBROUTINE GRIDCHECK:' |
|---|
| 558 | write(*,*) ' CAN NOT OPEN INPUT DATA FILE '//wfname(ifn) |
|---|
| 559 | write(*,*) ' ###########################################'// & |
|---|
| 560 | '###### ' |
|---|
| 561 | write(*,*) |
|---|
| 562 | write(*,'(a)') '!!! PLEASE INSERT A NEW CD-ROM AND !!!' |
|---|
| 563 | write(*,'(a)') '!!! PRESS ANY KEY TO CONTINUE... !!!' |
|---|
| 564 | write(*,'(a)') '!!! ...OR TERMINATE FLEXPART PRESSING!!!' |
|---|
| 565 | write(*,'(a)') '!!! THE "X" KEY... !!!' |
|---|
| 566 | write(*,*) |
|---|
| 567 | read(*,'(a)') opt |
|---|
| 568 | if(opt.eq.'X') then |
|---|
| 569 | stop |
|---|
| 570 | else |
|---|
| 571 | goto 5 |
|---|
| 572 | endif |
|---|
| 573 | |
|---|
| 574 | end subroutine gridcheck |
|---|
| 575 | |
|---|
