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heterogenous standard deviation for perturbation input from file #628

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merged 6 commits into from
Mar 8, 2023
Merged

heterogenous standard deviation for perturbation input from file #628

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5dbd875
heterogenous standard deviation for perturbation, input from …
saraqzhang Feb 28, 2023
3c62107
remove "comment!" on reading fillvalue from sdv nc file
saraqzhang Mar 2, 2023
7ede13f
Merge branch 'develop' into feature/saraqzhang/stdv4pert
gmao-rreichle Mar 7, 2023
49bfae1
restoring develop version of LDAS_TileCoordRoutines.F90 to avoid unne…
gmao-rreichle Mar 7, 2023
ab6111d
minimal edits of comments in LDAS_PertRoutines.F90
gmao-rreichle Mar 7, 2023
747ffc6
updated comments in LDAS_PertRoutines.F90
gmao-rreichle Mar 8, 2023
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36 changes: 28 additions & 8 deletions src/Components/GEOSldas_GridComp/GEOSlandpert_GridComp/LDAS_PertRoutines.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -651,14 +651,26 @@ subroutine get_pert_grid( tile_grid, pert_grid )
! perturbations in tile space from gridded perturbations fields
! (see calls to "grid2tile" in clsm_ensdrv_pert_routines.F90,
! clsm_ensupd_upd_routines.F90, and clsm_adapt_routines.F90)

if(index(tile_grid%gridtype,"c3") ==0) then

! If *not* cube-sphere tile space, then for perturbations use the grid that
! defines the tile space (a.k.a. "tile_grid"). E.g., if in EASE grid tile space,
! the pert grid is the EASE grid.

pert_grid = tile_grid

else ! cubed-sphere grid
!for cubed-sphere grid, global lat_lon grid

! For cubed-sphere tile space, use a global lat_lon pert grid with a resolution
! similar to that of the grid that defines the tile space.

N_x=tile_grid%n_lon


! NOTE: The pert grid specification is hard-wired here.
! If perturbation stddev is heterogeneous input from a file,
! then the input grid must match this hard-wired grid. (sqz 2/2023)

n_lon=4*N_x
n_lat=3*N_x
write(lattmp,'(I6.6)') n_lat
Expand Down Expand Up @@ -1111,9 +1123,13 @@ subroutine get_force_pert_inputs( pert_grid_l, &
call MPI_BCAST(stdfilename_force_pert,300,MPI_CHARACTER,0,mpicomm,mpierr)

nc4_file = stdfilename_force_pert


! NOTE: the input file is in netcdf format, with a group 'std_force_pert',
! and the grid in the netcdf file must be the *global* pert grid
! (see subroutine get_pert_grid())

! --compute-local-shape-first-
! ASSUMPTION: data in file are on the *global* grid (tile_grid_g)
! ASSUMPTION: data in file are on the *global* pert grid
xstart = pert_grid_l%i_offg + 1
xcount = pert_grid_l%N_lon
ystart = pert_grid_l%j_offg + 1
Expand Down Expand Up @@ -1503,9 +1519,13 @@ subroutine get_progn_pert_inputs( pert_grid_l, &
call MPI_BCAST(stdfilename_progn_pert,300,MPI_CHARACTER,0,mpicomm,mpierr)

nc4_file = stdfilename_progn_pert

! NOTE: the input file is in netcdf format, with a group 'std_force_pert',
! and the grid in the netcdf file must be the *global* pert grid
! (see subroutine get_pert_grid())

! --compute-local-shape-first-
! ASSUMPTION: data in file are on the *global* grid (tile_grid_g)
! ASSUMPTION: data in file are on the *global* pert grid
xstart = pert_grid_l%i_offg + 1
xcount = pert_grid_l%N_lon
ystart = pert_grid_l%j_offg + 1
Expand Down Expand Up @@ -1549,10 +1569,10 @@ subroutine get_progn_pert_inputs( pert_grid_l, &
std_progn_pert(ivar,:,:) = 0.
end if
end do
! close file
nc4_stat = nf90_close(nc4_id)
if (nc4_stat /= nf90_noerr) call handle_nc4_stat(nc4_stat)
end if
! close file
nc4_stat = nf90_close(nc4_id)
if (nc4_stat /= nf90_noerr) call handle_nc4_stat(nc4_stat)
end do
call MPI_Barrier(mpicomm, mpierr)
end if
Expand Down