New Thompson cloud fraction (updated subroutine cal_cldfra3) (NCAR#432)

Add a new method to calculate cloud fraction for Thompson MP. A few diagnostic variables are added for use by the cloud fraction schemes in CCPP, and the icloud==3 switch is repurposed from currently being unused to switch between the original progcld6 and the new progcld_thompson scheme in CCPP.
hannahcbarnes · Dec 10, 2021 · 283bd50 · 283bd50
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commit 283bd50
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Showing 4 changed files with 174 additions and 4 deletions.
diff --git a/ccpp/data/GFS_typedefs.F90 b/ccpp/data/GFS_typedefs.F90
@@ -1671,6 +1671,12 @@ module GFS_typedefs
     real (kind=kind_phys), pointer :: cldfra (:,:)   => null()  !< instantaneous 3D cloud fraction
     !--- MP quantities for 3D diagnositics
     real (kind=kind_phys), pointer :: refl_10cm(:,:) => null()  !< instantaneous refl_10cm
+    real (kind=kind_phys), pointer :: cldfra2d (:)   => null()  !< instantaneous 2D cloud fraction
+    real (kind=kind_phys), pointer :: total_albedo (:)   => null()  !< total sky (with cloud) albedo at toa
+    real (kind=kind_phys), pointer :: lwp_ex (:)     => null()  !< liquid water path from microphysics
+    real (kind=kind_phys), pointer :: iwp_ex (:)     => null()  !< ice water path from microphysics
+    real (kind=kind_phys), pointer :: lwp_fc (:)     => null()  !< liquid water path from cloud fraction scheme
+    real (kind=kind_phys), pointer :: iwp_fc (:)     => null()  !< ice water path from cloud fraction scheme
 
     !--- Extra PBL diagnostics
     real (kind=kind_phys), pointer :: dkt(:,:)       => null()  !< Eddy diffusitivity for heat
@@ -6518,7 +6524,13 @@ subroutine diag_create (Diag, IM, Model)
     if (Model%imp_physics == Model%imp_physics_fer_hires) then
      allocate (Diag%train     (IM,Model%levs))
     end if
-    allocate (Diag%cldfra     (IM,Model%levs))
+    allocate (Diag%cldfra     (IM,Model%levr+LTP))
+    allocate (Diag%cldfra2d   (IM))
+    allocate (Diag%total_albedo (IM))
+    allocate (Diag%lwp_ex (IM))
+    allocate (Diag%iwp_ex (IM))
+    allocate (Diag%lwp_fc (IM))
+    allocate (Diag%iwp_fc (IM))
 
     !--- 3D diagnostics
     if (Model%ldiag3d) then
@@ -6784,6 +6796,12 @@ subroutine diag_phys_zero (Diag, Model, linit, iauwindow_center)
        Diag%train      = zero
     end if
     Diag%cldfra      = zero
+    Diag%cldfra2d    = zero
+    Diag%total_albedo = zero
+    Diag%lwp_ex     = zero
+    Diag%iwp_ex     = zero
+    Diag%lwp_fc     = zero
+    Diag%iwp_fc     = zero
 
     Diag%totprcpb   = zero
     Diag%cnvprcpb   = zero
@@ -6894,7 +6912,7 @@ subroutine diag_phys_zero (Diag, Model, linit, iauwindow_center)
     Diag%dku = zero
 
 ! max hourly diagnostics
-    Diag%refl_10cm   = zero
+    Diag%refl_10cm   = -35.
     Diag%refdmax     = -35.
     Diag%refdmax263k = -35.
     Diag%t02max      = -999.

diff --git a/ccpp/data/GFS_typedefs.meta b/ccpp/data/GFS_typedefs.meta
@@ -7087,6 +7087,48 @@
   dimensions = (horizontal_loop_extent,adjusted_vertical_layer_dimension_for_radiation)
   type = real
   kind = kind_phys
+[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
+[lwp_ex]
+  standard_name = liq_water_path_from_microphysics
+  long_name = total liquid water path from explicit microphysics
+  units = kg m-2
+  dimensions = (horizontal_loop_extent)
+  type = real
+  kind = kind_phys
+[iwp_ex]
+  standard_name = ice_water_path_from_microphysics
+  long_name = total ice water path from explicit microphysics
+  units = kg m-2
+  dimensions = (horizontal_loop_extent)
+  type = real
+  kind = kind_phys
+[lwp_fc]
+  standard_name = liq_water_path_from_cloud_fraction
+  long_name = total liquid water path from cloud fraction scheme
+  units = kg m-2
+  dimensions = (horizontal_loop_extent)
+  type = real
+  kind = kind_phys
+[iwp_fc]
+  standard_name = ice_water_path_from_cloud_fraction
+  long_name = total ice water path from cloud fraction scheme
+  units = kg m-2
+  dimensions = (horizontal_loop_extent)
+  type = real
+  kind = kind_phys
+[total_albedo]
+  standard_name = total_sky_albedo
+  long_name = total sky albedo at toa
+  units = frac
+  dimensions = (horizontal_loop_extent)
+  type = real
+  kind = kind_phys
 [edmf_a]
   standard_name = emdf_updraft_area
   long_name = updraft area from mass flux scheme

diff --git a/ccpp/driver/GFS_diagnostics.F90 b/ccpp/driver/GFS_diagnostics.F90
@@ -160,6 +160,78 @@ subroutine GFS_externaldiag_populate (ExtDiag, Model, Statein, Stateout, Sfcprop
 
     idx = 0 
 
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'cldfra2d'
+    ExtDiag(idx)%desc = 'instantaneous 2D (max-in-column) cloud fraction'
+    ExtDiag(idx)%unit = 'frac'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%cldfra2d(:)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'total_albedo'
+    ExtDiag(idx)%desc = 'total sky albedo at toa'
+    ExtDiag(idx)%unit = 'frac'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%total_albedo(:)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'lwp_ex'
+    ExtDiag(idx)%desc = 'total liquid water path from explicit microphysics'
+    ExtDiag(idx)%unit = 'kg m-2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%lwp_ex(:)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'iwp_ex'
+    ExtDiag(idx)%desc = 'total ice water path from explicit microphysics'
+    ExtDiag(idx)%unit = 'kg m-2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%iwp_ex(:)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'lwp_fc'
+    ExtDiag(idx)%desc = 'total liquid water path from cloud fraction scheme'
+    ExtDiag(idx)%unit = 'kg m-2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%lwp_fc(:)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'iwp_fc'
+    ExtDiag(idx)%desc = 'total ice water path from cloud fraction scheme'
+    ExtDiag(idx)%unit = 'kg m-2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%iwp_fc(:)
+    enddo
+
     idx = idx + 1
     ExtDiag(idx)%axes = 2
     ExtDiag(idx)%name = 'ALBDO_ave'
@@ -200,7 +272,6 @@ subroutine GFS_externaldiag_populate (ExtDiag, Model, Statein, Stateout, Sfcprop
       ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%dlwsfci(:)
     enddo
 
-
     idx = idx + 1
     ExtDiag(idx)%axes = 2
     ExtDiag(idx)%name = 'ULWRF'
@@ -215,6 +286,45 @@ subroutine GFS_externaldiag_populate (ExtDiag, Model, Statein, Stateout, Sfcprop
       ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%ulwsfc(:)
     enddo
 
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'DSWRFItoa'
+    ExtDiag(idx)%desc = 'instantaneous top of atmos downward shortwave flux'
+    ExtDiag(idx)%unit = 'W/m**2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%cnvfac = cn_one
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%fluxr(:,23)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'USWRFItoa'
+    ExtDiag(idx)%desc = 'instantaneous top of atmos upward shortwave flux'
+    ExtDiag(idx)%unit = 'W/m**2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%cnvfac = cn_one
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%fluxr(:,2)
+    enddo
+
+    idx = idx + 1
+    ExtDiag(idx)%axes = 2
+    ExtDiag(idx)%name = 'ULWRFItoa'
+    ExtDiag(idx)%desc = 'instantaneous top of atmos upward longwave flux'
+    ExtDiag(idx)%unit = 'W/m**2'
+    ExtDiag(idx)%mod_name = 'gfs_phys'
+    ExtDiag(idx)%cnvfac = cn_one
+    ExtDiag(idx)%intpl_method = 'bilinear'
+    allocate (ExtDiag(idx)%data(nblks))
+    do nb = 1,nblks
+      ExtDiag(idx)%data(nb)%var2 => IntDiag(nb)%fluxr(:,1)
+    enddo
+
     idx = idx + 1
     ExtDiag(idx)%axes = 2
     ExtDiag(idx)%name = 'ULWRFI'

diff --git a/ccpp/physics b/ccpp/physics