[37] | 1 | MODULE etat0_dcmip3_mod |
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| 2 | |
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| 3 | ! test cases DCMIP 2012, category 3 : Non-hydrostatic gravity waves |
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| 4 | |
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| 5 | ! Questions |
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| 6 | ! Replace ps0 by preff ?? |
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| 7 | |
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| 8 | USE genmod |
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[48] | 9 | USE dcmip_initial_conditions_test_1_2_3 |
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| 10 | |
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[37] | 11 | PRIVATE |
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| 12 | ! some of the following should be obtained via getin |
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| 13 | ! REAL(rstd),PARAMETER :: ztop=10000. ! Height position of the model top (m) |
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| 14 | ! REAL(rstd),PARAMETER :: ptop=27391.9 ! Pressure at the model top (Pa) |
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| 15 | ! REAL(rstd),PARAMETER :: Xscale=1. ! Small-planet scaling factor (1=Earth) |
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| 16 | ! REAL(rstd),PARAMETER :: Omega =0 ! Planetary rotation rate (s-1) |
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| 17 | REAL(rstd),PARAMETER :: u0=20. ! Maximum amplitude of the zonal wind (m.s-1) |
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| 18 | REAL(rstd),PARAMETER :: zs=0. ! Surface elevation (m) |
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[48] | 19 | REAL(rstd),PARAMETER :: N=0.01 ! Brunt-Vaisala frequency (s-1) |
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[37] | 20 | REAL(rstd),PARAMETER :: Teq=300. ! Surface temperature at the equator (K) |
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| 21 | REAL(rstd),PARAMETER :: Peq=1e5 ! Reference surface pressure at the equator (hPa) |
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| 22 | REAL(rstd),PARAMETER :: d=5000. ! Witdth parameter for theta |
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| 23 | REAL(rstd),PARAMETER :: lonc=2*pi/3 ! Longitudinal centerpoint of theta |
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| 24 | REAL(rstd),PARAMETER :: latc=0 ! Longitudinal centerpoint of theta |
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| 25 | REAL(rstd),PARAMETER :: dtheta=1. ! Maximum amplitude of theta (K) |
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| 26 | REAL(rstd),PARAMETER :: Lz=20000. ! Vertical wave lenght of the theta perturbation |
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| 27 | |
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| 28 | PUBLIC etat0 |
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| 29 | CONTAINS |
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| 30 | |
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| 31 | |
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| 32 | SUBROUTINE etat0(f_ps,f_phis,f_theta_rhodz,f_u, f_q) |
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| 33 | USE icosa |
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| 34 | IMPLICIT NONE |
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| 35 | TYPE(t_field),POINTER :: f_ps(:) |
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| 36 | TYPE(t_field),POINTER :: f_phis(:) |
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| 37 | TYPE(t_field),POINTER :: f_theta_rhodz(:) |
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| 38 | TYPE(t_field),POINTER :: f_u(:) |
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| 39 | TYPE(t_field),POINTER :: f_q(:) |
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| 40 | |
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| 41 | REAL(rstd),POINTER :: ps(:) |
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| 42 | REAL(rstd),POINTER :: phis(:) |
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| 43 | REAL(rstd),POINTER :: u(:,:) |
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| 44 | REAL(rstd),POINTER :: theta_rhodz(:,:) |
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| 45 | REAL(rstd),POINTER :: q(:,:,:) |
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| 46 | |
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| 47 | INTEGER :: ind |
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| 48 | |
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| 49 | DO ind=1,ndomain |
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| 50 | CALL swap_dimensions(ind) |
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| 51 | CALL swap_geometry(ind) |
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| 52 | |
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| 53 | ps=f_ps(ind) |
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| 54 | phis=f_phis(ind) |
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| 55 | u=f_u(ind) |
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| 56 | theta_rhodz=f_theta_rhodz(ind) |
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| 57 | q=f_q(ind) |
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| 58 | CALL compute_etat0_DCMIP3(ps,phis,u,theta_rhodz,q) |
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| 59 | ENDDO |
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| 60 | |
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| 61 | END SUBROUTINE etat0 |
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| 62 | |
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| 63 | |
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| 64 | SUBROUTINE compute_etat0_DCMIP3(ps, phis, u, theta_rhodz,q) |
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| 65 | USE icosa |
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| 66 | USE pression_mod |
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| 67 | USE theta2theta_rhodz_mod |
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| 68 | USE wind_mod |
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| 69 | IMPLICIT NONE |
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| 70 | REAL(rstd), INTENT(OUT) :: ps(iim*jjm) |
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| 71 | REAL(rstd), INTENT(OUT) :: phis(iim*jjm) |
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| 72 | REAL(rstd), INTENT(OUT) :: u(3*iim*jjm,llm) |
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| 73 | REAL(rstd), INTENT(OUT) :: theta_rhodz(iim*jjm,llm) |
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| 74 | REAL(rstd), INTENT(OUT) :: q(iim*jjm,llm,nqtot) |
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| 75 | |
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| 76 | REAL(rstd) :: Ts(iim*jjm) |
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| 77 | REAL(rstd) :: s(iim*jjm) |
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| 78 | REAL(rstd) :: T(iim*jjm,llm) |
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| 79 | REAL(rstd) :: p(iim*jjm,llm+1) |
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[48] | 80 | REAL(rstd) :: theta(iim*jjm,llm) |
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[37] | 81 | REAL(rstd) :: ulon(3*iim*jjm,llm) |
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| 82 | REAL(rstd) :: ulat(3*iim*jjm,llm) |
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| 83 | |
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| 84 | |
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| 85 | INTEGER :: i,j,l,ij |
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| 86 | REAL(rstd) :: Rd ! gas constant of dry air, P=rho.Rd.T |
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| 87 | REAL(rstd) :: alpha, rm, zs |
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[48] | 88 | REAL(rstd) :: lon,lat, C0, C1, GG |
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| 89 | REAL(rstd) :: p0psk, pspsk,r,zz, thetab, thetap |
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| 90 | REAL(rstd) :: dummy, pp |
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| 91 | LOGICAL :: use_dcmip_routine |
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[37] | 92 | |
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[48] | 93 | Rd=cpp*kappa |
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| 94 | |
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| 95 | GG=(g/N)**2/cpp |
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| 96 | C0=0.25*u0*(u0+2.*Omega*radius) |
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| 97 | |
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| 98 | q(:,:,:)=0 |
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| 99 | |
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| 100 | ! use_dcmip_routine=.TRUE. |
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| 101 | use_dcmip_routine=.FALSE. |
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| 102 | dummy=0. |
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[37] | 103 | |
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[48] | 104 | pp=peq |
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| 105 | DO j=jj_begin,jj_end |
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| 106 | DO i=ii_begin,ii_end |
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[37] | 107 | ij=(j-1)*iim+i |
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| 108 | CALL xyz2lonlat(xyz_i(ij,:),lon,lat) |
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| 109 | |
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[48] | 110 | IF(use_dcmip_routine) THEN |
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| 111 | CALL test3_gravity_wave(lon,lat,pp,dummy,0, dummy,dummy,dummy,dummy,phis(ij),ps(ij),dummy,dummy) |
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| 112 | ELSE |
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| 113 | C1=C0*(cos(2*lat)-1) |
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| 114 | |
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| 115 | !--- GROUND GEOPOTENTIAL |
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| 116 | phis(ij)=0. |
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| 117 | |
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| 118 | !--- GROUND TEMPERATURE |
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| 119 | Ts(ij) = GG+(Teq-GG)*EXP(-C1*(N/g)**2) |
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| 120 | |
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| 121 | !--- GROUND PRESSURE |
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| 122 | Ps(ij) = peq*EXP(C1/GG/Rd)*(Ts(ij)/Teq)**(1/kappa) |
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| 123 | |
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| 124 | |
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| 125 | r=radius*acos(sin(latc)*sin(lat)+cos(latc)*cos(lat)*cos(lon-lonc)) |
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| 126 | s(ij)= d**2/(d**2+r**2) |
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| 127 | END IF |
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| 128 | END DO |
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| 129 | END DO |
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| 130 | |
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| 131 | CALL compute_pression(ps,p,0) |
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| 132 | |
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| 133 | DO l=1,llm |
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| 134 | DO j=jj_begin,jj_end |
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[37] | 135 | DO i=ii_begin,ii_end |
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[48] | 136 | ij=(j-1)*iim+i |
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| 137 | pp=0.5*(p(ij,l+1)+p(ij,l)) ! full-layer pressure |
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| 138 | IF(use_dcmip_routine) THEN |
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| 139 | CALL xyz2lonlat(xyz_i(ij,:),lon,lat) |
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| 140 | CALL test3_gravity_wave(lon,lat,pp,dummy,0,dummy,dummy,dummy,T(ij,l),dummy,dummy,dummy,dummy) |
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| 141 | ELSE |
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| 142 | pspsk=(pp/ps(ij))**kappa |
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| 143 | p0psk=(Peq/ps(ij))**kappa |
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| 144 | thetab = Ts(ij)*p0psk / ( Ts(ij) / GG * ( pspsk-1) +1) ! background pot. temp. |
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| 145 | zz = -g/N**2*log( Ts(ij)/GG * (pspsk -1)+1) ! altitude |
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| 146 | thetap = dtheta *sin(2*Pi*zz/Lz) * s(ij) ! perturbation pot. temp. |
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| 147 | theta(ij,l) = thetab + thetap |
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| 148 | T(ij,l) = theta(ij,l)* ((pp/peq)**kappa) |
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| 149 | ! T(ij,l) = Ts(ij)*pspsk / ( Ts(ij) / GG * ( pspsk-1) +1) ! background temp. |
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| 150 | END IF |
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[37] | 151 | ENDDO |
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[48] | 152 | ENDDO |
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| 153 | ENDDO |
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| 154 | |
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| 155 | IF(use_dcmip_routine) THEN |
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| 156 | CALL compute_temperature2theta_rhodz(ps,T,theta_rhodz,0) |
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| 157 | ELSE |
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| 158 | ! CALL compute_theta2theta_rhodz(ps,theta,theta_rhodz,0) |
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| 159 | CALL compute_temperature2theta_rhodz(ps,T,theta_rhodz,0) |
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| 160 | END IF |
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| 161 | |
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| 162 | pp=peq |
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| 163 | DO l=1,llm |
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| 164 | DO j=jj_begin-1,jj_end+1 |
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[37] | 165 | DO i=ii_begin-1,ii_end+1 |
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[48] | 166 | ij=(j-1)*iim+i |
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| 167 | IF(use_dcmip_routine) THEN |
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| 168 | CALL xyz2lonlat(xyz_e(ij+u_right,:),lon,lat) |
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| 169 | CALL test3_gravity_wave(lon,lat,pp,0.,0, & |
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| 170 | ulon(ij+u_right,l),ulat(ij+u_right,l),& |
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| 171 | dummy,dummy,dummy,dummy,dummy,dummy) |
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| 172 | CALL xyz2lonlat(xyz_e(ij+u_lup,:),lon,lat) |
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| 173 | CALL test3_gravity_wave(lon,lat,pp,0.,0,& |
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| 174 | ulon(ij+u_lup,l),ulat(ij+u_lup,l),& |
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| 175 | dummy,dummy,dummy,dummy,dummy,dummy) |
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| 176 | CALL xyz2lonlat(xyz_e(ij+u_ldown,:),lon,lat) |
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| 177 | CALL test3_gravity_wave(lon,lat,pp,0.,0,& |
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| 178 | ulon(ij+u_ldown,l),ulat(ij+u_ldown,l),& |
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| 179 | dummy,dummy,dummy,dummy,dummy,dummy) |
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| 180 | ELSE |
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| 181 | CALL xyz2lonlat(xyz_e(ij+u_right,:),lon,lat) |
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| 182 | ulon(ij+u_right,l)=u0*cos(lat) |
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| 183 | ulat(ij+u_right,l)=0 |
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| 184 | |
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| 185 | CALL xyz2lonlat(xyz_e(ij+u_lup,:),lon,lat) |
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| 186 | ulon(ij+u_lup,l)=u0*cos(lat) |
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| 187 | ulat(ij+u_lup,l)=0 |
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| 188 | |
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| 189 | CALL xyz2lonlat(xyz_e(ij+u_ldown,:),lon,lat) |
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| 190 | ulon(ij+u_ldown,l)=u0*cos(lat) |
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| 191 | ulat(ij+u_ldown,l)=0 |
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| 192 | END IF |
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[37] | 193 | ENDDO |
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[48] | 194 | ENDDO |
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| 195 | ENDDO |
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| 196 | |
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| 197 | CALL compute_wind_perp_from_lonlat_compound(ulon,ulat,u) |
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| 198 | |
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| 199 | END SUBROUTINE compute_etat0_DCMIP3 |
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[37] | 200 | |
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| 201 | |
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[48] | 202 | END MODULE etat0_DCMIP3_mod |
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