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Merge pull request #9 from dustinswales/add_cnvcldcnd_mp2rad_cplng
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Couple convective cloud to radiation
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@grantfirl
grantfirl committed Nov 22, 2022
2 parents 82062de + 5180460 commit 84d89f9
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49 changes: 35 additions & 14 deletions physics/GFS_rrtmgp_cloud_mp.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -50,11 +50,12 @@ subroutine GFS_rrtmgp_cloud_mp_run(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldic
relhum, lsmask, xlon, xlat, dx, tv_lay, effrin_cldliq, effrin_cldice, &
effrin_cldrain, effrin_cldsnow, tracer, cnv_mixratio, cld_cnv_frac, qci_conv, &
deltaZ, deltaZc, deltaP, qc_mynn, qi_mynn, cld_pbl_frac, con_g, con_rd, con_eps, &
con_ttp, doGP_cldoptics_PADE, doGP_cldoptics_LUT, cld_frac, cld_lwp, cld_reliq, &
con_ttp, doGP_cldoptics_PADE, doGP_cldoptics_LUT, doGP_smearclds, &
cld_frac, cld_lwp, cld_reliq, &
cld_iwp, cld_reice, cld_swp, cld_resnow, cld_rwp, cld_rerain, precip_frac, &
cld_cnv_lwp, cld_cnv_reliq, cld_cnv_iwp, cld_cnv_reice, cld_pbl_lwp, &
cld_pbl_reliq, cld_pbl_iwp, cld_pbl_reice, lwp_ex, iwp_ex, lwp_fc, iwp_fc, &
errmsg, errflg)
cldfra2d, errmsg, errflg)
implicit none

! Inputs
Expand Down Expand Up @@ -92,7 +93,8 @@ subroutine GFS_rrtmgp_cloud_mp_run(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldic
uni_cld, & ! Flag for unified cloud scheme
lmfdeep2, & ! Flag for mass flux deep convection
doGP_cldoptics_LUT, & ! Flag to do GP cloud-optics (LUTs)
doGP_cldoptics_PADE ! (PADE approximation)
doGP_cldoptics_PADE, & ! (PADE approximation)
doGP_smearclds ! If true, add sgs clouds to gridmean clouds
real(kind_phys), intent(in) :: &
con_g, & ! Physical constant: gravitational constant
con_rd, & ! Physical constant: gas-constant for dry air
Expand Down Expand Up @@ -135,6 +137,8 @@ subroutine GFS_rrtmgp_cloud_mp_run(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldic
iwp_ex, & ! Total ice water path from explicit microphysics
lwp_fc, & ! Total liquid water path from cloud fraction scheme
iwp_fc ! Total ice water path from cloud fraction scheme
real(kind_phys), dimension(:), intent(out) :: &
cldfra2d ! Instantaneous 2D (max-in-column) cloud fraction
real(kind_phys), dimension(:,:),intent(inout) :: &
cld_frac, & ! Cloud-fraction for stratiform clouds
cld_lwp, & ! Water path for stratiform liquid cloud-particles
Expand Down Expand Up @@ -267,8 +271,9 @@ subroutine GFS_rrtmgp_cloud_mp_run(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldic
endif
call cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_cldrain,&
i_cldsnow, i_cldgrpl, p_lev, p_lay, tv_lay, t_lay, tracer, qs_lay, q_lay, &
relhum, con_g, con_rd, con_eps, alpha0, lwp_ex, iwp_ex, lwp_fc, iwp_fc, &
cld_frac, cld_lwp, cld_iwp, cld_swp, cld_rwp, cond_cfrac_onRH = .true.)
relhum, con_ttp, con_g, con_rd, con_eps, alpha0, cnv_mixratio, lwp_ex, &
iwp_ex, lwp_fc, iwp_fc, cld_frac, cld_lwp, cld_iwp, cld_swp, cld_rwp, &
cond_cfrac_onRH = .true., doGP_smearclds = doGP_smearclds)
endif

! Bound effective radii for RRTMGP, LUT's for cloud-optics go from
Expand All @@ -293,6 +298,14 @@ subroutine GFS_rrtmgp_cloud_mp_run(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldic
endif
endif

! Instantaneous 2D (max-in-column) cloud fraction
do iCol = 1, nCol
cldfra2d(iCol) = 0._kind_phys
do iLay = 1, nLev-1
cldfra2d(iCol) = max(cldfra2d(iCol), cld_frac(iCol,iLay))
enddo
enddo

precip_frac(1:nCol,1:nLev) = cld_frac(1:nCol,1:nLev)

end subroutine GFS_rrtmgp_cloud_mp_run
Expand Down Expand Up @@ -659,13 +672,14 @@ end subroutine cloud_mp_uni
!! \section cloud_mp_thompson_gen General Algorithm
subroutine cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_cldrain,&
i_cldsnow, i_cldgrpl, p_lev, p_lay, tv_lay, t_lay, tracer, qs_lay, q_lay, relhum, &
con_g, con_rd, con_eps, alpha0, lwp_ex, iwp_ex, lwp_fc, iwp_fc, cld_frac, cld_lwp,&
cld_iwp, cld_swp, cld_rwp, cond_cfrac_onRH)
con_ttp, con_g, con_rd, con_eps, alpha0, cnv_mixratio, lwp_ex, iwp_ex, lwp_fc, &
iwp_fc, cld_frac, cld_lwp, cld_iwp, cld_swp, cld_rwp, cond_cfrac_onRH, doGP_smearclds)
implicit none

! Inputs
logical, intent(in), optional :: &
cond_cfrac_onRH
cond_cfrac_onRH, & ! If true, cloud-fracion set to unity when rh>99%
doGP_smearclds ! If true, add sgs clouds to gridmean clouds
integer, intent(in) :: &
nCol, & ! Number of horizontal grid points
nLev, & ! Number of vertical layers
Expand All @@ -677,6 +691,7 @@ subroutine cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_c
i_cldsnow, & ! cloud snow amount.
i_cldgrpl ! cloud groupel amount.
real(kind_phys), intent(in) :: &
con_ttp, & ! Triple point temperature of water (K)
con_g, & ! Physical constant: gravitational constant
con_rd, & ! Physical constant: gas-constant for dry air
con_eps, & ! Physical constant: gas constant air / gas constant H2O
Expand All @@ -687,7 +702,8 @@ subroutine cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_c
qs_lay, & ! Saturation vapor pressure (Pa)
q_lay, & ! water-vapor mixing ratio (kg/kg)
relhum, & ! Relative humidity
p_lay ! Pressure at model-layers (Pa)
p_lay, & ! Pressure at model-layers (Pa)
cnv_mixratio ! Convective cloud mixing-ratio (kg/kg)
real(kind_phys), dimension(:,:), intent(in) :: &
p_lev ! Pressure at model-level interfaces (Pa)
real(kind_phys), dimension(:,:,:),intent(in) :: &
Expand All @@ -707,16 +723,15 @@ subroutine cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_c
cld_rwp ! Cloud rain water path

! Local variables
real(kind_phys) :: tem1, pfac, cld_mr, deltaP
real(kind_phys) :: tem1, pfac, cld_mr, deltaP, tem2
real(kind_phys), dimension(nCol, nLev, min(4,ncnd)) :: cld_condensate
integer :: iCol,iLay,l

! Cloud condensate
cld_condensate(1:nCol,1:nLev,1) = tracer(1:nCol,1:nLev,i_cldliq) ! -liquid water
cld_condensate(1:nCol,1:nLev,2) = tracer(1:nCol,1:nLev,i_cldice) ! -ice water
cld_condensate(1:nCol,1:nLev,3) = tracer(1:nCol,1:nLev,i_cldrain) ! -rain water
cld_condensate(1:nCol,1:nLev,4) = tracer(1:nCol,1:nLev,i_cldsnow) + &! -snow + grapuel
tracer(1:nCol,1:nLev,i_cldgrpl)
cld_condensate(1:nCol,1:nLev,3) = tracer(1:nCol,1:nLev,i_cldrain) ! -rain hydrometeors
cld_condensate(1:nCol,1:nLev,4) = tracer(1:nCol,1:nLev,i_cldsnow) ! -snow hydrometeors

cld_lwp(:,:) = 0.0
cld_iwp(:,:) = 0.0
Expand All @@ -726,6 +741,12 @@ subroutine cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_c
tem1 = 1.0e5/con_g
do iLay = 1, nLev-1
do iCol = 1, nCol
! Add convective cloud to gridmean cloud?
if (doGP_smearclds) then
tem2 = min(1.0, max(0.0, (con_ttp-t_lay(iCol,iLay))*0.05))
cld_condensate(iCol,iLay,1) = cld_condensate(iCol,iLay,1) + cnv_mixratio(iCol,iLay)*(1._kind_phys - tem2)
cld_condensate(iCol,iLay,2) = cld_condensate(iCol,iLay,2) + cnv_mixratio(iCol,iLay)*tem2
endif
! Compute liquid/ice condensate path from mixing ratios (kg/kg)->(g/m2)
deltaP = abs(p_lev(iCol,iLay+1)-p_lev(iCol,iLay))*0.01
cld_lwp(iCol,iLay) = max(0., cld_condensate(iCol,iLay,1) * tem1 * deltaP)
Expand All @@ -738,7 +759,7 @@ subroutine cloud_mp_thompson(nCol, nLev, nTracers, ncnd, i_cldliq, i_cldice, i_c
cld_frac(iCol,iLay) = 1._kind_phys
else
cld_mr = cld_condensate(iCol,iLay,1) + cld_condensate(iCol,iLay,2) + &
cld_condensate(iCol,iLay,4)
cld_condensate(iCol,iLay,3) + cld_condensate(iCol,iLay,4)
cld_frac(iCol,iLay) = cld_frac_XuRandall(p_lay(iCol,iLay), &
qs_lay(iCol,iLay), relhum(iCol,iLay), cld_mr, alpha0)
endif
Expand Down
15 changes: 15 additions & 0 deletions physics/GFS_rrtmgp_cloud_mp.meta
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Original file line number Diff line number Diff line change
Expand Up @@ -462,6 +462,13 @@
dimensions = ()
type = logical
intent = in
[doGP_smearclds]
standard_name = flag_for_implicit_sgs_cloud_in_RRTMGP
long_name = logical flag to impicit SGS cloud in RRTMGP
units = flag
dimensions = ()
type = logical
intent = in
[cld_frac]
standard_name = total_cloud_fraction
long_name = layer total cloud fraction
Expand Down Expand Up @@ -646,6 +653,14 @@
type = real
kind = kind_phys
intent = inout
[cldfra2d]
standard_name = max_in_column_cloud_fraction
long_name = instantaneous 2D (max-in-column) cloud fraction
units = frac
dimensions = (horizontal_loop_extent)
type = real
kind = kind_phys
intent = out
[errmsg]
standard_name = ccpp_error_message
long_name = error message for error handling in CCPP
Expand Down
16 changes: 9 additions & 7 deletions physics/radiation_clouds.f
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Original file line number Diff line number Diff line change
Expand Up @@ -2160,7 +2160,7 @@ subroutine progcld_thompson_wsm6 &
integer :: i, k, id, nf
! --- constant values
real (kind=kind_phys), parameter :: xrc3 = 200.
real (kind=kind_phys), parameter :: xrc3 = 100.
!
!===> ... begin here
Expand All @@ -2177,7 +2177,7 @@ subroutine progcld_thompson_wsm6 &
rei (i,k) = re_ice(i,k)
rer (i,k) = rrain_def ! default rain radius to 1000 micron
res (i,k) = re_snow(i,K)
! tem2d (i,k) = min( 1.0, max( 0.0, (con_ttp-tlyr(i,k))*0.05 ) )
tem2d (i,k) = min( 1.0, max( 0.0, (con_ttp-tlyr(i,k))*0.05 ) )
clwf(i,k) = 0.0
enddo
enddo
Expand Down Expand Up @@ -2208,12 +2208,14 @@ subroutine progcld_thompson_wsm6 &
enddo
enddo
!> - Compute cloud liquid/ice condensate path in \f$ g/m^2 \f$ .
!> - Compute total-cloud liquid/ice condensate path in \f$ g/m^2 \f$.
!> The total condensate includes convective condensate.
do k = 1, NLAY-1
do i = 1, IX
cwp(i,k) = max(0.0, clw(i,k,ntcw) * gfac * delp(i,k))
cip(i,k) = max(0.0, clw(i,k,ntiw) * gfac * delp(i,k))
cwp(i,k) = max(0.0, (clw(i,k,ntcw)+cnvw(i,k)*
& (1.-tem2d(i,k))) * gfac * delp(i,k))
cip(i,k) = max(0.0, (clw(i,k,ntiw) + cnvw(i,k)*
& tem2d(i,k)) *gfac * delp(i,k))
crp(i,k) = max(0.0, clw(i,k,ntrw) * gfac * delp(i,k))
csp(i,k) = max(0.0, clw(i,k,ntsw) * gfac * delp(i,k))
enddo
Expand Down Expand Up @@ -3902,7 +3904,7 @@ subroutine cloud_fraction_mass_flx_2 &
clwmin = 0.0
do k = 1, NLAY-1
do i = 1, IX
clwt = 1.0e-10 * (plyr(i,k)*0.001)
clwt = 1.0e-6 * (plyr(i,k)*0.001)

if (clwf(i,k) > clwt) then
if(rhly(i,k) > 0.99) then
Expand Down

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