[12] | 1 | MODULE geopotential_mod |
---|
[354] | 2 | IMPLICIT NONE |
---|
| 3 | PRIVATE |
---|
[428] | 4 | |
---|
[354] | 5 | PUBLIC :: compute_geopotential |
---|
[12] | 6 | CONTAINS |
---|
| 7 | |
---|
[428] | 8 | SUBROUTINE thetarhodz2geopot(f_ps,f_phis,f_theta_rhodz, f_p,f_theta,f_phi) ! FIXME : never called, dry only |
---|
| 9 | USE icosa |
---|
| 10 | USE omp_para |
---|
| 11 | USE pression_mod |
---|
| 12 | USE theta2theta_rhodz_mod |
---|
| 13 | TYPE(t_field), POINTER :: f_ps(:), f_phis(:), f_theta_rhodz(:), & ! IN |
---|
| 14 | f_p(:), f_theta(:), f_phi(:) ! OUT |
---|
| 15 | REAL(rstd),POINTER :: pk(:,:), p(:,:), theta(:,:,:), theta_rhodz(:,:,:), & |
---|
| 16 | phi(:,:), phis(:), ps(:) |
---|
[12] | 17 | INTEGER :: ind |
---|
[428] | 18 | |
---|
| 19 | DO ind=1,ndomain |
---|
| 20 | IF (.NOT. assigned_domain(ind)) CYCLE |
---|
| 21 | CALL swap_dimensions(ind) |
---|
| 22 | CALL swap_geometry(ind) |
---|
| 23 | ps = f_ps(ind) |
---|
| 24 | p = f_p(ind) |
---|
| 25 | !$OMP BARRIER |
---|
| 26 | CALL compute_pression(ps,p,0) |
---|
| 27 | !$OMP BARRIER |
---|
| 28 | theta_rhodz = f_theta_rhodz(ind) |
---|
| 29 | theta = f_theta(ind) |
---|
| 30 | CALL compute_theta_rhodz2theta(ps, theta_rhodz,theta,0) |
---|
| 31 | phis = f_phis(ind) |
---|
| 32 | phi = f_phi(ind) |
---|
| 33 | CALL compute_geopotential(phis,p,theta,phi,0) |
---|
| 34 | END DO |
---|
[12] | 35 | |
---|
[428] | 36 | END SUBROUTINE thetarhodz2geopot |
---|
| 37 | |
---|
| 38 | |
---|
| 39 | SUBROUTINE compute_geopotential(phis,p,theta,phi,offset) |
---|
| 40 | USE icosa |
---|
| 41 | USE omp_para |
---|
| 42 | REAL(rstd),INTENT(IN) :: p(iim*jjm,llm+1) |
---|
[12] | 43 | REAL(rstd),INTENT(IN) :: phis(iim*jjm) |
---|
[428] | 44 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm,nqdyn) |
---|
[12] | 45 | REAL(rstd),INTENT(OUT) :: phi(iim*jjm,llm) |
---|
| 46 | INTEGER,INTENT(IN) :: offset |
---|
| 47 | INTEGER :: i,j,ij,l |
---|
[428] | 48 | REAL(rstd) :: mg_ij, p_ij, exner_ij |
---|
[12] | 49 | |
---|
| 50 | !!! Compute geopotential |
---|
[121] | 51 | ! LMD-Z : dh=pi.dtheta-vdp => (1/rho) dp = pi.dtheta - d(h=pi.theta) = -dtheta.gradpi |
---|
| 52 | ! g.dz = -(1/rho)dp = theta.gradpi |
---|
| 53 | ! direct (variational) |
---|
| 54 | ! dz = -(1/rho.g)dp, rho = RT/p = (R/C_p).theta.pi/p |
---|
| 55 | |
---|
[12] | 56 | ! for first layer |
---|
[295] | 57 | |
---|
| 58 | ! flush pks, pk thetha, phis |
---|
| 59 | !$OMP BARRIER |
---|
[428] | 60 | IF(is_omp_level_master) THEN |
---|
| 61 | DO j=jj_begin-offset,jj_end+offset |
---|
| 62 | DO i=ii_begin-offset,ii_end+offset |
---|
| 63 | ij=(j-1)*iim+i |
---|
| 64 | phi( ij,1 ) = phis( ij ) |
---|
| 65 | END DO |
---|
| 66 | END DO |
---|
[295] | 67 | |
---|
| 68 | ! for other layers |
---|
[428] | 69 | DO l = 1, llm-1 |
---|
[295] | 70 | DO j=jj_begin-offset,jj_end+offset |
---|
| 71 | DO i=ii_begin-offset,ii_end+offset |
---|
| 72 | ij=(j-1)*iim+i |
---|
[428] | 73 | mg_ij = p(ij,l+1)-p(ij,l) |
---|
| 74 | ! v=RT/p=(kappa.cpp).Theta.(p/preff)**kappa /p |
---|
| 75 | p_ij=.5*(p(ij,l+1)+p(ij,l)) |
---|
| 76 | exner_ij = (p_ij/preff)**kappa ! NB : no cpp factor |
---|
| 77 | phi(ij,l+1) = phi(ij,l) + (kappa*cpp)*mg_ij*theta(ij,l,1)*exner_ij/p_ij |
---|
[295] | 78 | ENDDO |
---|
| 79 | ENDDO |
---|
| 80 | ENDDO |
---|
| 81 | ENDIF |
---|
| 82 | ! flush phi |
---|
| 83 | !$OMP BARRIER |
---|
[12] | 84 | |
---|
| 85 | END SUBROUTINE compute_geopotential |
---|
| 86 | |
---|
| 87 | END MODULE geopotential_mod |
---|