[496c607] | 1 | |
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| 2 | subroutine getfpfields(itime,nstop,metdata_format) |
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[e200b7a] | 3 | ! i o |
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| 4 | !***************************************************************************** |
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| 5 | ! * |
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| 6 | ! This subroutine manages the 3 data fields to be kept in memory. * |
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| 7 | ! During the first time step of petterssen it has to be fulfilled that the * |
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| 8 | ! first data field must have |wftime|<itime, i.e. the absolute value of * |
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| 9 | ! wftime must be smaller than the absolute value of the current time in [s].* |
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| 10 | ! The other 2 fields are the next in time after the first one. * |
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| 11 | ! Pointers (memind) are used, because otherwise one would have to resort the* |
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| 12 | ! wind fields, which costs a lot of computing time. Here only the pointers * |
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| 13 | ! are resorted. * |
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| 14 | ! * |
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| 15 | ! Author: A. Stohl * |
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| 16 | ! * |
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| 17 | ! 29 April 1994 * |
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| 18 | ! * |
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| 19 | !***************************************************************************** |
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| 20 | ! Changes, Bernd C. Krueger, Feb. 2001: |
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| 21 | ! Variables tth,qvh,tthn,qvhn (on eta coordinates) in common block. |
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| 22 | ! Function of nstop extended. |
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| 23 | !***************************************************************************** |
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| 24 | ! * |
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| 25 | ! Variables: * |
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| 26 | ! lwindinterval [s] time difference between the two wind fields read in * |
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| 27 | ! indj indicates the number of the wind field to be read in * |
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| 28 | ! indmin remembers the number of wind fields already treated * |
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| 29 | ! memind(2) pointer, on which place the wind fields are stored * |
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| 30 | ! memtime(2) [s] times of the wind fields, which are kept in memory * |
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| 31 | ! itime [s] current time since start date of trajectory calcu- * |
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| 32 | ! lation * |
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| 33 | ! nstop > 0, if trajectory has to be terminated * |
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| 34 | ! nx,ny,nuvz,nwz field dimensions in x,y and z direction * |
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| 35 | ! uu(0:nxmax,0:nymax,nuvzmax,2) wind components in x-direction [m/s] * |
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| 36 | ! vv(0:nxmax,0:nymax,nuvzmax,2) wind components in y-direction [m/s] * |
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| 37 | ! ww(0:nxmax,0:nymax,nwzmax,2) wind components in z-direction [deltaeta/s]* |
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| 38 | ! tt(0:nxmax,0:nymax,nuvzmax,2) temperature [K] * |
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| 39 | ! ps(0:nxmax,0:nymax,2) surface pressure [Pa] * |
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| 40 | ! * |
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| 41 | ! Constants: * |
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| 42 | ! idiffmax maximum allowable time difference between 2 wind * |
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| 43 | ! fields * |
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| 44 | ! * |
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| 45 | !***************************************************************************** |
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| 46 | |
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| 47 | use par_mod |
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| 48 | use com_mod |
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| 49 | |
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[496c607] | 50 | use fpmetbinary_mod |
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| 51 | |
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[e200b7a] | 52 | implicit none |
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| 53 | |
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[496c607] | 54 | integer :: indj,itime,nstop,memaux,metdata_format |
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[e200b7a] | 55 | |
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| 56 | real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 57 | real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 58 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 59 | real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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| 60 | real :: uuhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 61 | real :: vvhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 62 | real :: pvhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 63 | real :: wwhn(0:nxmaxn-1,0:nymaxn-1,nwzmax,maxnests) |
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| 64 | |
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| 65 | integer :: indmin = 1 |
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| 66 | |
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[496c607] | 67 | !character(len=120) :: fpdir ! Directory the .fp files are in |
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| 68 | character(len=512) fpfname ! .fp filename |
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| 69 | |
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| 70 | #ifdef PERFTIMER |
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| 71 | INTEGER millisecs_start, millisecs_stop, count_rate, count_max |
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| 72 | #endif |
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| 73 | |
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[e200b7a] | 74 | |
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| 75 | ! Check, if wind fields are available for the current time step |
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| 76 | !************************************************************** |
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| 77 | |
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| 78 | nstop=0 |
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| 79 | |
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| 80 | if ((ldirect*wftime(1).gt.ldirect*itime).or. & |
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| 81 | (ldirect*wftime(numbwf).lt.ldirect*itime)) then |
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| 82 | write(*,*) 'FLEXPART WARNING: NO WIND FIELDS ARE AVAILABLE.' |
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| 83 | write(*,*) 'A TRAJECTORY HAS TO BE TERMINATED.' |
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| 84 | nstop=4 |
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| 85 | return |
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| 86 | endif |
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| 87 | |
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| 88 | |
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| 89 | if ((ldirect*memtime(1).le.ldirect*itime).and. & |
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| 90 | (ldirect*memtime(2).gt.ldirect*itime)) then |
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| 91 | |
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| 92 | ! The right wind fields are already in memory -> don't do anything |
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| 93 | !***************************************************************** |
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| 94 | |
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| 95 | continue |
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| 96 | |
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| 97 | else if ((ldirect*memtime(2).le.ldirect*itime).and. & |
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| 98 | (memtime(2).ne.999999999)) then |
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| 99 | |
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| 100 | |
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| 101 | ! Current time is after 2nd wind field |
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| 102 | ! -> Resort wind field pointers, so that current time is between 1st and 2nd |
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| 103 | !*************************************************************************** |
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| 104 | |
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| 105 | memaux=memind(1) |
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| 106 | memind(1)=memind(2) |
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| 107 | memind(2)=memaux |
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| 108 | memtime(1)=memtime(2) |
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| 109 | |
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| 110 | |
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| 111 | ! Read a new wind field and store it on place memind(2) |
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| 112 | !****************************************************** |
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| 113 | |
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| 114 | do indj=indmin,numbwf-1 |
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| 115 | if (ldirect*wftime(indj+1).gt.ldirect*itime) then |
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[496c607] | 116 | |
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| 117 | #ifdef PERFTIMER |
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| 118 | CALL SYSTEM_CLOCK(millisecs_start, count_rate, count_max) |
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| 119 | #endif |
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| 120 | ! Read in a single .fp file, placing contents at index 2 |
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| 121 | if ( ldirect.eq.1 ) then |
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[48a5c5c] | 122 | fpfname = TRIM(path(3)) // TRIM(wfname(indj+1)) |
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[496c607] | 123 | else |
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[48a5c5c] | 124 | fpfname = TRIM(path(3)) // TRIM(wfname(indj+1)) |
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[496c607] | 125 | endif |
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| 126 | print *, 'loading... ', TRIM(fpfname) |
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| 127 | CALL fpmetbinary_load(TRIM(fpfname), memind(2)) |
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| 128 | memtime(2)=wftime(indj+1) |
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| 129 | nstop = 1 |
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| 130 | |
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| 131 | #ifdef PERFTIMER |
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| 132 | CALL SYSTEM_CLOCK(millisecs_stop, count_rate, count_max) |
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| 133 | PRINT *, 'Wall time to process: ', TRIM(fpfname), & |
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| 134 | ': ', (millisecs_stop-millisecs_start)/1000.0, ' seconds' |
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| 135 | #endif |
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| 136 | |
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| 137 | |
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| 138 | goto 40 |
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| 139 | |
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[e200b7a] | 140 | endif |
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| 141 | end do |
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| 142 | 40 indmin=indj |
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| 143 | |
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| 144 | else |
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| 145 | |
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| 146 | ! No wind fields, which can be used, are currently in memory |
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| 147 | ! -> read both wind fields |
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| 148 | !*********************************************************** |
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| 149 | |
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| 150 | do indj=indmin,numbwf-1 |
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| 151 | if ((ldirect*wftime(indj).le.ldirect*itime).and. & |
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| 152 | (ldirect*wftime(indj+1).gt.ldirect*itime)) then |
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| 153 | memind(1)=1 |
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[496c607] | 154 | |
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| 155 | #ifdef PERFTIMER |
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| 156 | CALL SYSTEM_CLOCK(millisecs_start, count_rate, count_max) |
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| 157 | #endif |
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| 158 | ! Read in first .fp file |
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| 159 | if ( ldirect.eq.1 ) then |
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[48a5c5c] | 160 | fpfname = TRIM(path(3)) // TRIM(wfname(indj)) |
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[496c607] | 161 | else |
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[48a5c5c] | 162 | fpfname = TRIM(path(3)) // TRIM(wfname(indj)) |
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[496c607] | 163 | endif |
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| 164 | print *, 'loading... ', TRIM(fpfname) |
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| 165 | CALL fpmetbinary_load(TRIM(fpfname), memind(1)) |
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| 166 | memtime(1)=wftime(indj) |
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| 167 | memind(2)=2 |
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| 168 | #ifdef PERFTIMER |
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| 169 | CALL SYSTEM_CLOCK(millisecs_stop, count_rate, count_max) |
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| 170 | PRINT *, 'Wall time to process: ', TRIM(fpfname), & |
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| 171 | ': ', (millisecs_stop-millisecs_start)/1000.0, ' seconds' |
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| 172 | #endif |
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| 173 | |
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| 174 | #ifdef PERFTIMER |
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| 175 | CALL SYSTEM_CLOCK(millisecs_start, count_rate, count_max) |
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| 176 | #endif |
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| 177 | ! Read in second .fp file |
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| 178 | if ( ldirect.eq.1 ) then |
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[48a5c5c] | 179 | fpfname = TRIM(path(3)) // TRIM(wfname(indj+1)) |
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[496c607] | 180 | else |
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[48a5c5c] | 181 | fpfname = TRIM(path(3)) // TRIM(wfname(indj+1)) |
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[496c607] | 182 | endif |
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| 183 | print *, 'loading... ', TRIM(fpfname) |
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| 184 | CALL fpmetbinary_load(TRIM(fpfname), memind(2)) |
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| 185 | memtime(2)=wftime(indj+1) |
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| 186 | nstop = 1 |
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| 187 | #ifdef PERFTIMER |
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| 188 | CALL SYSTEM_CLOCK(millisecs_stop, count_rate, count_max) |
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| 189 | PRINT *, 'Wall time to process: ', TRIM(fpfname), & |
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| 190 | ': ', (millisecs_stop-millisecs_start)/1000.0, ' seconds' |
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| 191 | #endif |
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| 192 | |
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| 193 | |
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| 194 | goto 60 |
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[e200b7a] | 195 | endif |
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| 196 | end do |
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| 197 | 60 indmin=indj |
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| 198 | |
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| 199 | endif |
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| 200 | |
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| 201 | lwindinterv=abs(memtime(2)-memtime(1)) |
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| 202 | |
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| 203 | if (lwindinterv.gt.idiffmax) nstop=3 |
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| 204 | |
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[496c607] | 205 | end subroutine getfpfields |
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| 206 | |
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| 207 | |
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