| 1 | MODULE disvert_dcmip200_mod |
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| 2 | USE icosa |
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| 3 | |
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| 4 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: ap(:) |
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| 5 | !$OMP THREADPRIVATE(ap) |
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| 6 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: bp(:) |
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| 7 | !$OMP THREADPRIVATE(bp) |
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| 8 | REAL(rstd), SAVE, ALLOCATABLE,TARGET :: presnivs(:) |
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| 9 | !$OMP THREADPRIVATE(presnivs) |
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| 10 | |
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| 11 | CONTAINS |
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| 12 | !========================================================================= |
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| 13 | |
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| 14 | SUBROUTINE init_disvert |
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| 15 | USE icosa |
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| 16 | USE mpipara |
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| 17 | IMPLICIT NONE |
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| 18 | |
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| 19 | ALLOCATE(ap(llm+1)) |
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| 20 | ALLOCATE(bp(llm+1)) |
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| 21 | ALLOCATE(presnivs(llm)) |
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| 22 | |
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| 23 | CALL disvert(ap,bp,presnivs) |
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| 24 | |
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| 25 | END SUBROUTINE init_disvert |
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| 26 | |
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| 27 | SUBROUTINE disvert(ap,bp,presnivs) |
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| 28 | USE icosa |
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| 29 | USE mpipara |
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| 30 | IMPLICIT NONE |
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| 31 | REAL(rstd),INTENT(OUT) :: ap(:) |
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| 32 | REAL(rstd),INTENT(OUT) :: bp(:) |
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| 33 | REAL(rstd),INTENT(OUT) :: presnivs(:) |
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| 34 | ! reads from run.def : ncar_dz, ncar_T0, ncar_p0, ncar_disvert_c |
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| 35 | INTEGER :: l,cindx |
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| 36 | REAL(rstd) :: eta_top, eta |
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| 37 | REAL(rstd),PARAMETER :: N=0.01 ! Brunt-Vaisala frequency (s-1) |
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| 38 | REAL(rstd),PARAMETER :: T0=300. ! Surface temperature at the equator (K) |
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| 39 | REAL(rstd) :: Rd |
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| 40 | REAL(rstd), PARAMETER :: Gamma=0.0065 |
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| 41 | |
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| 42 | Rd=cpp*kappa |
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| 43 | ncar_dz=400 ; CALL getin('ncar_dz',ncar_dz); |
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| 44 | cindx=1 ; CALL getin('ncar_disvert_c',cindx) |
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| 45 | |
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| 46 | |
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| 47 | |
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| 48 | eta_top = (1-Gamma/T0*llm*ncar_dz)**(g/(Rd*Gamma)) |
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| 49 | do l = 1,llm+1 |
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| 50 | eta = (1-Gamma/T0*(l-1)*ncar_dz)**(g/(Rd*Gamma)) |
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| 51 | PRINT *,'eta ->', eta |
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| 52 | bp(l) = ((eta - eta_top)/(1 - eta_top))**cindx |
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| 53 | ap(l) = preff * ( eta - bp(l) ) |
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| 54 | ENDDO |
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| 55 | bp(1)=1. |
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| 56 | ap(1)=0. |
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| 57 | bp(llm+1) = 0 |
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| 58 | |
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| 59 | DO l = 1, llm |
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| 60 | presnivs(l) = 0.5 *( ap(l)+bp(l)*preff + ap(l+1)+bp(l+1)*preff ) |
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| 61 | ENDDO |
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| 62 | |
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| 63 | !$OMP MASTER |
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| 64 | IF (is_mpi_root) PRINT *, 'Vertical placement of model levels according to DCMIP Appendix E.3' |
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| 65 | IF (is_mpi_root) PRINT *, 'Parameters : ncar_dz=', ncar_dz, ' ncar_p0=',ncar_p0, ' ncar_disvert_c=',cindx |
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| 66 | IF (is_mpi_root) PRINT *, 'Isothermal amtosphere with ncar_T0=',ncar_T0 |
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| 67 | !$OMP END MASTER |
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| 68 | |
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| 69 | END SUBROUTINE disvert |
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| 70 | |
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| 71 | END MODULE disvert_dcmip200_mod |
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