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Add Mironov soil dielectric mixing model and rough reflectivity parameter options #644

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merged 8 commits into from
May 11, 2023
Merged

Add Mironov soil dielectric mixing model and rough reflectivity parameter options #644

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77fda88
Merge remote-tracking branch 'origin/feature/wjiang/bcast_pert_select…
gmao-qliu Apr 13, 2023
2861a22
Merge branch 'develop' of github.com:GEOS-ESM/GEOSldas into develop
gmao-qliu Apr 21, 2023
8c116cb
update mwRTM_get_Tb
gmao-qliu May 5, 2023
24ae9a9
update mwRTM_get_Tb
gmao-qliu May 5, 2023
bbe4e02
use RTM_ID alone to identify mwRTM config; cleanup of Mironov subroutine
gmao-rreichle May 8, 2023
e6db3ac
fixed typo in variable declaration (mwRTM_routines.F90)
gmao-rreichle May 9, 2023
3f3bb99
adding module use statement for LDAS_exceptionsMod (GEOS_LandAssimGri…
gmao-rreichle May 9, 2023
1333041
additional comments and clean-up for new mwRTM (GEOS_LandAssimGridCom…
gmao-rreichle May 11, 2023
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7 changes: 4 additions & 3 deletions src/Applications/LDAS_App/LDASsa_DEFAULT_inputs_ensupd.nml
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Expand Up @@ -103,9 +103,10 @@ fcsterr_inflation_fac = -9999.
! %RTM_ID = ID of radiative transfer model to use for Tb forward modeling
! (subroutine get_obs_pred())
! 0 = none
! 1 = tau-omega model as in De Lannoy et al. 2013 (doi:10.1175/JHM-D-12-092.1)
! 2 = same as 1 but without Pellarin atmospheric corrections
! 3 = ...
! 1 = L-band tau-omega model as in De Lannoy et al. 2013 (doi:10.1175/JHM-D-12-092.1) (SMOS)
! 2 = same as 1 but without Pellarin atm corr (SMAP)
! 3 = same as 1 but with Mironov and SMAP L2_SM pol mixing (SMOS)
! 4 = same as 3 but without Pellarin atm corr (targeted for SMAP L4_SM Version 8)
! %bias_Npar = number of obs bias states tracked per day (integer)
! %bias_trel = e-folding time scale of obs bias memory [s]
! %bias_tcut = cutoff time for confident obs bias estimate [s]
Expand Down
35 changes: 26 additions & 9 deletions src/Components/GEOSldas_GridComp/GEOSlandassim_GridComp/GEOS_LandAssimGridComp.F90
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Expand Up @@ -17,6 +17,8 @@ module GEOS_LandAssimGridCompMod
use ESMF_CFIOMOD, only: ESMF_CFIOstrTemplate
use GEOS_ExportCatchIncrGridCompMod, only: ExportCatchIncrSetServices=>SetServices
use MAPL_ConstantsMod, only: MAPL_TICE

use LDAS_exceptionsMod, only: ldas_abort, LDAS_GENERIC_ERROR

use LDAS_TileCoordType, only: tile_coord_type
use LDAS_TileCoordType, only: grid_def_type
Expand Down Expand Up @@ -68,7 +70,6 @@ module GEOS_LandAssimGridCompMod

use, intrinsic :: ieee_arithmetic


implicit none

include 'mpif.h'
Expand Down Expand Up @@ -115,6 +116,8 @@ module GEOS_LandAssimGridCompMod
logical :: mwRTM

logical, allocatable :: tb_nodata(:)

character(len=400) :: err_msg

contains

Expand Down Expand Up @@ -2234,7 +2237,9 @@ end subroutine UPDATE_ASSIM
! ******************************************************************************

! subroutine to calculate Tb for HISTORY output

!
! IMPORTANT: hardwired mwRTM configuration for SMAP L-band Tb w/o Pellarin atm correction (RTM_ID=4)

subroutine CALC_LAND_TB(gc, import, export, clock, rc)

type(ESMF_GridComp), intent(inout) :: gc ! Gridded component
Expand All @@ -2248,7 +2253,7 @@ subroutine CALC_LAND_TB(gc, import, export, clock, rc)
! hard-coded SMAP Tb parameters
real, parameter :: freq = 1.41e9 ! microwave frequency [Hz]
real, parameter :: inc_angle = 40. ! incidence angle [deg]
logical, parameter :: incl_atm_terms = .false. ! no atmospheric correction, ie, get Tb at top-of-vegetation
integer, parameter :: RTM_ID = 4 ! config of RTM - see obs_param (LDAS_DEFAULT_inputs_ensupd.nml)

integer :: status
character(len=ESMF_MAXSTR) :: Iam='CALC_LAND_TB'
Expand Down Expand Up @@ -2375,22 +2380,34 @@ subroutine CALC_LAND_TB(gc, import, export, clock, rc)

allocate(TB_h_tmp(N_catl), TB_v_tmp(N_catl))

if (.not. incl_atm_terms) then
select case (RTM_ID)

case(2,4)

allocate(dummy_real(N_catl)) ! allocate needed for GNU compiler

call mwRTM_get_Tb( &
N_catl, freq, inc_angle, mwRTM_param, &
dummy_real, & ! intent(in), "elev", not used as long as "incl_atm_terms=.false."
dummy_real, & ! intent(in), "elev", not used as long as RTM_ID=4 (formerly "incl_atm_terms=.false.")
LAI, &
sfmc_mwRTM, &
tsoil_mwRTM, &
SWE, &
dummy_real, & ! intent(in), "Tair", not used as long as "incl_atm_terms=.false."
incl_atm_terms, &
RTM_ID, &
Tb_h_tmp, Tb_v_tmp ) ! intent(out) 'TB_LAND_1410MHZ_40DEG_HPOL', 'TB_LAND_1410MHZ_40DEG_VPOL'
deallocate(dummy_real)
else
_ASSERT(.false., "top-of-atmosphere Tb calculation not yet implemented (incl_atm_terms=.true.)")
end if

case(1,3)

_ASSERT(.false., "top-of-atmosphere Tb calculation (requested per RTM_ID) not yet implemented")

case default

err_msg = 'unknown RTM_ID (during CALC_LAND_TB)'
call ldas_abort(LDAS_GENERIC_ERROR, Iam, err_msg)
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end select

if (collect_tb_counter == 0) then
TB_H_enavg = 0.
Expand Down
49 changes: 13 additions & 36 deletions src/Components/GEOSldas_GridComp/GEOSlandassim_GridComp/clsm_ensupd_upd_routines.F90
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Expand Up @@ -1350,49 +1350,26 @@ subroutine get_obs_pred( &

do j=1,N_TbuniqFreqAngRTMid

freq = Tb_freq_ang_RTMid(j,1)
inc_angle = Tb_freq_ang_RTMid(j,2)
RTM_id = Tb_freq_ang_RTMid(j,3)
freq = Tb_freq_ang_RTMid(j,1)
inc_angle = Tb_freq_ang_RTMid(j,2)
RTM_id = nint(Tb_freq_ang_RTMid(j,3))

! Select a specific configuration of the RTM via the field
! "RTM_ID" in the "obs_param" type.
!
! %RTM_ID = ID of radiative transfer model to use for Tb forward modeling
! (subroutine get_obs_pred())
! 0 = none
! 1 = tau-omega model as in De Lannoy et al. 2013 (doi:10.1175/JHM-D-12-092.1)
! 2 = same as 1 but without Pellarin atmospheric corrections
! 3 = ...
! 0 = none
! 1 = L-band tau-omega model as in De Lannoy et al. 2013 (doi:10.1175/JHM-D-12-092.1) (SMOS)
! 2 = same as 1 but without Pellarin atm corr (SMAP)
! 3 = same as 1 but with Mironov and SMAP L2_SM pol mixing (SMOS)
! 4 = same as 3 but without Pellarin atm corr (targeted for SMAP L4_SM Version 8)

call mwRTM_get_Tb( &
N_catl, freq, inc_angle, mwRTM_param, tile_coord_l%elev, &
lai, smoist, stemp_l(:,n_e), SWE, met_force%Tair, RTM_ID, &
Tb_h_vec, Tb_v_vec )

select case (RTM_id)

case (1)

! bug fix: previously, mwRTM_get_Tb() was called without specifying the
! sub-array of "stemp_l" that corresponds to ensemble member n_e
! - reichle, 11 Dec 2013

call mwRTM_get_Tb( &
N_catl, freq, inc_angle, mwRTM_param, tile_coord_l%elev, &
lai, smoist, stemp_l(:,n_e), SWE, met_force%Tair, .true., &
Tb_h_vec, Tb_v_vec )

case (2)

call mwRTM_get_Tb( &
N_catl, freq, inc_angle, mwRTM_param, tile_coord_l%elev, &
lai, smoist, stemp_l(:,n_e), SWE, met_force%Tair, .false., &
Tb_h_vec, Tb_v_vec )

case default

write (tmpstring10,*) RTM_ID

err_msg = 'unknown or inconsistent RTM_ID=' // tmpstring10
call ldas_abort(LDAS_GENERIC_ERROR, Iam, err_msg)

end select

Tb_h_l(:,j,n_e) = Tb_h_vec
Tb_v_l(:,j,n_e) = Tb_v_vec

Expand Down
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