| 1 | MODULE disvert_apbp_mod |
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| 2 | USE icosa |
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| 3 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: ap(:) |
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| 4 | !$OMP THREADPRIVATE(ap) |
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| 5 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: bp(:) |
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| 6 | !$OMP THREADPRIVATE(bp) |
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| 7 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: presnivs(:) |
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| 8 | !$OMP THREADPRIVATE(presnivs) |
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| 9 | |
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| 10 | CONTAINS |
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| 11 | |
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| 12 | SUBROUTINE init_disvert |
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| 13 | ! USE icosa |
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| 14 | IMPLICIT NONE |
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| 15 | |
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| 16 | ALLOCATE(ap(llm+1)) |
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| 17 | ALLOCATE(bp(llm+1)) |
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| 18 | ALLOCATE(presnivs(llm)) |
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| 19 | |
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| 20 | CALL disvert(ap,bp,presnivs) |
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| 21 | |
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| 22 | END SUBROUTINE init_disvert |
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| 23 | |
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| 24 | |
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| 25 | SUBROUTINE disvert(ap,bp,presnivs) |
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| 26 | ! USE icosa |
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| 27 | USE mpipara, ONLY: is_mpi_root |
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| 28 | USE omp_para, ONLY: omp_in_parallel |
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| 29 | USE transfert_omp_mod, ONLY: bcast_omp |
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| 30 | USE free_unit_mod, ONLY : free_unit |
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| 31 | IMPLICIT NONE |
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| 32 | REAL(rstd),INTENT(OUT) :: ap(:) |
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| 33 | REAL(rstd),INTENT(OUT) :: bp(:) |
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| 34 | REAL(rstd),INTENT(OUT) :: presnivs(:) |
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| 35 | INTEGER :: unit |
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| 36 | CHARACTER(len=255) :: filename |
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| 37 | INTEGER :: l,ok |
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| 38 | |
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| 39 | filename="apbp.txt" !file to read |
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| 40 | ! but users may want to use some other file name |
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| 41 | CALL getin('read_apbp_file',filename) |
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| 42 | |
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| 43 | !$OMP MASTER |
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| 44 | unit=free_unit() |
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| 45 | OPEN(unit,file=filename,status="old",action="read",iostat=ok) |
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| 46 | IF (ok/=0) THEN |
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| 47 | WRITE(*,*) "disvert_ap_bp error: input file ",trim(filename)," not found!" |
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| 48 | CALL ABORT |
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| 49 | ENDIF |
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| 50 | ! read in ap() and b() line by line, starting from surface up |
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| 51 | ! to model top |
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| 52 | DO l=1,llm+1 |
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| 53 | READ(unit,fmt=*,iostat=ok) ap(l),bp(l) |
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| 54 | IF (ok/=0) THEN |
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| 55 | WRITE(*,*) "disvert_ap_bp error: failed reading ap(l) and bp(l) for l=",l |
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| 56 | CALL ABORT |
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| 57 | ENDIF |
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| 58 | ENDDO |
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| 59 | |
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| 60 | CLOSE(unit) |
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| 61 | !$OMP END MASTER |
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| 62 | IF (omp_in_parallel()) THEN |
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| 63 | CALL bcast_omp(ap) |
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| 64 | CALL bcast_omp(bp) |
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| 65 | ENDIF |
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| 66 | |
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| 67 | ! build presnivs(), approximative mid-layer pressures |
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| 68 | DO l=1,llm |
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| 69 | presnivs(l)=0.5*(ap(l)+bp(l)*preff+ap(l+1)+bp(l+1)*preff) |
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| 70 | ENDDO |
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| 71 | |
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| 72 | ! tell the world about it |
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| 73 | IF (is_mpi_root) THEN |
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| 74 | !$OMP MASTER |
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| 75 | WRITE(*,*) "ap()=",ap |
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| 76 | WRITE(*,*) "bp()=",bp |
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| 77 | WRITE(*,*) "Approximative mid-layer pressure, assuming a surface pressure preff=",preff," Pa" |
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| 78 | WRITE(*,*) "and approximative mid-layer height, assuming an atmospheric scale height of ",scale_height/1000," (km)" |
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| 79 | DO l=1,llm |
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| 80 | WRITE(*,*) 'PRESNIVS(',l,')=',presnivs(l),' Z ~ ',log(preff/presnivs(l))*scale_height/1000, & |
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| 81 | ' DZ ~ ',scale_height/1000*log((ap(l)+bp(l)*preff)/ max(ap(l+1)+bp(l+1)*preff,1.e-10)) |
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| 82 | ENDDO |
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| 83 | !$OMP END MASTER |
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| 84 | ENDIF |
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| 85 | |
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| 86 | END SUBROUTINE disvert |
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| 87 | |
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| 88 | END MODULE disvert_apbp_mod |
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