[467] | 1 | MODULE disvert_strato_mod |
---|
| 2 | USE icosa |
---|
| 3 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: ap(:) |
---|
| 4 | !$OMP THREADPRIVATE(ap) |
---|
| 5 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: bp(:) |
---|
| 6 | !$OMP THREADPRIVATE(bp) |
---|
| 7 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: presnivs(:) |
---|
| 8 | !$OMP THREADPRIVATE(presnivs) |
---|
| 9 | |
---|
| 10 | CONTAINS |
---|
| 11 | |
---|
| 12 | SUBROUTINE init_disvert |
---|
| 13 | USE icosa |
---|
| 14 | IMPLICIT NONE |
---|
| 15 | |
---|
| 16 | ALLOCATE(ap(llm+1)) |
---|
| 17 | ALLOCATE(bp(llm+1)) |
---|
| 18 | ALLOCATE(presnivs(llm)) |
---|
| 19 | |
---|
| 20 | CALL disvert(ap,bp,presnivs) |
---|
| 21 | |
---|
| 22 | END SUBROUTINE init_disvert |
---|
| 23 | |
---|
| 24 | |
---|
| 25 | SUBROUTINE disvert(ap,bp,presnivs) |
---|
| 26 | USE icosa |
---|
| 27 | USE mpipara |
---|
| 28 | USE earth_const |
---|
| 29 | IMPLICIT NONE |
---|
| 30 | REAL(rstd),INTENT(OUT) :: ap(:) |
---|
| 31 | REAL(rstd),INTENT(OUT) :: bp(:) |
---|
| 32 | REAL(rstd),INTENT(OUT) :: presnivs(:) |
---|
| 33 | |
---|
| 34 | REAL(rstd) :: dsig(llm) |
---|
| 35 | REAL(rstd) :: sig(llm+1) |
---|
| 36 | REAL(rstd) :: snorm |
---|
| 37 | REAL(rstd) :: x |
---|
| 38 | INTEGER :: l |
---|
| 39 | |
---|
| 40 | snorm = 0. |
---|
| 41 | DO l = 1, llm |
---|
| 42 | x = Pi*(l-0.5)/(llm+1) |
---|
| 43 | dsig(l) = (1.0 + 7.0 * SIN(x)**2) * (0.5* (1.-tanh( (x-Pi/2)/(Pi/2) ) ))**2 |
---|
| 44 | snorm = snorm + dsig(l) |
---|
| 45 | ENDDO |
---|
| 46 | |
---|
| 47 | DO l = 1, llm |
---|
| 48 | dsig(l) = dsig(l)/snorm |
---|
| 49 | ENDDO |
---|
| 50 | |
---|
| 51 | sig(llm+1) = 0. |
---|
| 52 | DO l = llm, 1, -1 |
---|
| 53 | sig(l) = sig(l+1) + dsig(l) |
---|
| 54 | ENDDO |
---|
| 55 | |
---|
| 56 | bp(llm+1) = 0. |
---|
| 57 | DO l = 1, llm |
---|
| 58 | bp(l) = EXP( 1. -1./( sig(l)*sig(l)) ) |
---|
| 59 | ap(l) = pa * ( sig(l) - bp(l) ) |
---|
| 60 | ENDDO |
---|
| 61 | bp(1)=1. |
---|
| 62 | ap(1)=0. |
---|
| 63 | ap(llm+1) = pa * ( sig(llm+1) - bp(llm+1) ) |
---|
| 64 | DO l = 1, llm |
---|
| 65 | presnivs(l) = 0.5 *( ap(l)+bp(l)*preff + ap(l+1)+bp(l+1)*preff ) |
---|
| 66 | ENDDO |
---|
| 67 | |
---|
| 68 | ! tell the world about it |
---|
| 69 | IF (is_mpi_root) THEN |
---|
| 70 | !$OMP MASTER |
---|
| 71 | WRITE(*,*) "ap()=",ap |
---|
| 72 | WRITE(*,*) "bp()=",bp |
---|
| 73 | WRITE(*,*) "Approximative mid-layer pressure, assuming a surface pressure preff=",preff," Pa" |
---|
| 74 | WRITE(*,*) "and approximative mid-layer height, assuming an atmospheric scale height of ",scale_height/1000," (km)" |
---|
| 75 | DO l=1,llm |
---|
| 76 | WRITE(*,*) 'PRESNIVS(',l,')=',presnivs(l),' Z ~ ',log(preff/presnivs(l))*scale_height/1000, & |
---|
| 77 | ' DZ ~ ',scale_height/1000*log((ap(l)+bp(l)*preff)/ max(ap(l+1)+bp(l+1)*preff,1.e-10)) |
---|
| 78 | ENDDO |
---|
| 79 | !$OMP END MASTER |
---|
| 80 | ENDIF |
---|
| 81 | |
---|
| 82 | END SUBROUTINE disvert |
---|
| 83 | |
---|
| 84 | END MODULE disvert_strato_mod |
---|