| 1 | subroutine evolch4(ngrid,nlayer,pls,pplev,pdpsrf,zqch4evol) |
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| 2 | use datafile_mod |
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| 3 | use comcstfi_mod, only: pi |
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| 4 | use mod_phys_lmdz_para, only : is_master |
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| 5 | use tracer_h, only: igcm_ch4_gas, igcm_n2, mmol |
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| 6 | |
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| 7 | implicit none |
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| 8 | |
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| 9 | !================================================================== |
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| 10 | ! Purpose |
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| 11 | ! ------- |
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| 12 | ! Get tracer fields according to the solar longitude (for 1D purpose for now) |
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| 13 | ! |
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| 14 | ! Inputs |
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| 15 | ! ------ |
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| 16 | ! pls solar longitude |
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| 17 | ! pplev pressure |
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| 18 | ! pdpsrf tendency on pressure |
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| 19 | ! |
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| 20 | ! Outputs |
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| 21 | ! ------- |
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| 22 | ! zdqch4evol tendency on zqch4 |
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| 23 | |
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| 24 | ! Both |
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| 25 | ! ---- |
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| 26 | ! |
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| 27 | ! Authors |
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| 28 | ! ------- |
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| 29 | ! Tanguy Bertrand |
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| 30 | !================================================================== |
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| 31 | |
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| 32 | !----------------------------------------------------------------------- |
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| 33 | ! Arguments |
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| 34 | |
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| 35 | INTEGER ngrid, nlayer |
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| 36 | REAL,INTENT(IN) :: pls |
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| 37 | REAL,INTENT(IN) :: pplev(ngrid,nlayer+1) ! pressure levels/ |
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| 38 | REAL,INTENT(IN) :: pdpsrf(ngrid) |
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| 39 | REAL,INTENT(OUT) :: zqch4evol(nlayer) ! Final tendancy |
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| 40 | !----------------------------------------------------------------------- |
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| 41 | ! Local variables |
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| 42 | LOGICAL,SAVE :: firstcall=.true. |
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| 43 | !$OMP THREADPRIVATE(firstcall) |
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| 44 | |
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| 45 | integer Nfine |
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| 46 | parameter(Nfine=143) |
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| 47 | integer ifine |
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| 48 | character(len=100) :: file_path |
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| 49 | real,save,allocatable :: lssdat(:) |
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| 50 | real,save,allocatable :: vmrdat(:) |
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| 51 | real :: vmrsrf |
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| 52 | |
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| 53 | |
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| 54 | !---------------- INPUT ------------------------------------------------ |
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| 55 | |
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| 56 | IF (firstcall) then |
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| 57 | firstcall=.false. |
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| 58 | |
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| 59 | !$OMP MASTER |
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| 60 | file_path=trim(datadir)//'/cycle_vmrch4.txt' |
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| 61 | if (is_master) print*,file_path |
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| 62 | |
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| 63 | open(222,file=file_path,form='formatted') |
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| 64 | |
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| 65 | if(.not.allocated(lssdat)) then |
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| 66 | allocate(lssdat(Nfine)) |
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| 67 | endif |
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| 68 | if(.not.allocated(vmrdat)) then |
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| 69 | allocate(vmrdat(Nfine)) |
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| 70 | endif |
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| 71 | |
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| 72 | do ifine=1,Nfine |
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| 73 | read(222,*) lssdat(ifine), vmrdat(ifine) |
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| 74 | enddo |
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| 75 | close(222) |
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| 76 | |
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| 77 | !$OMP END MASTER |
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| 78 | !$OMP BARRIER |
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| 79 | ENDIF |
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| 80 | |
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| 81 | CALL interp_line(lssdat,vmrdat,Nfine,pls*180./pi,vmrsrf,1) |
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| 82 | |
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| 83 | ! Reconstruct CH4 profile in percent |
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| 84 | zqch4evol(:)=min(vmrsrf*(pplev(1,1:nlayer)/pplev(1,1))**((16.-28.)/28.),50.) |
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| 85 | ! Convert in MMR |
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| 86 | zqch4evol(:)=zqch4evol(:)/100.*mmol(igcm_n2)/mmol(igcm_ch4_gas) |
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| 87 | |
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| 88 | end subroutine evolch4 |
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| 89 | |
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