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Add 'rca' variable to noahmpdrv_run interface for CCPP/physics PR#205 #10

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May 17, 2024
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Add 'rca' variable to noahmpdrv_run interface for CCPP/physics PR#205 #10

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12aef87
add canopy resistance to noahmp%model DDT and pass as argument to noa…
grantfirl May 9, 2024
0cc58c0
update NOAHMP files from CCPP to coincide with ccpp-physics PR#205
grantfirl May 9, 2024
1dbf99a
update noahmpdrv.F90 from ccpp/physics PR#205
grantfirl May 15, 2024
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22 changes: 19 additions & 3 deletions drivers/ccpp/noahmpdrv.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,7 @@ subroutine noahmpdrv_run &
sncovr1, qsurf, gflux, drain, evap, hflx, ep, runoff, &
cmm, chh, evbs, evcw, sbsno, pah, ecan, etran, edir, snowc,&
stm, snohf,smcwlt2, smcref2, wet1, t2mmp, q2mp,zvfun, &
ztmax, errmsg, errflg, &
ztmax, rca, errmsg, errflg, &
canopy_heat_storage_ccpp, &
rainfall_ccpp, &
sw_absorbed_total_ccpp, &
Expand Down Expand Up @@ -400,6 +400,8 @@ subroutine noahmpdrv_run &
real(kind=kind_phys), dimension(:) , intent(out) :: q2mp ! combined q2m from tiles
real(kind=kind_phys), dimension(:) , intent(out) :: zvfun !
real(kind=kind_phys), dimension(:) , intent(out) :: ztmax ! thermal roughness length
real(kind=kind_phys), dimension(:) , intent(out) :: rca ! total canopy/stomatal resistance (s/m)

character(len=*) , intent(out) :: errmsg
integer , intent(out) :: errflg

Expand Down Expand Up @@ -623,7 +625,7 @@ subroutine noahmpdrv_run &
real (kind=kind_phys) :: canopy_heat_storage ! out | within-canopy heat [W/m2]
real (kind=kind_phys) :: spec_humid_sfc_veg ! out | surface specific humidty over vegetation [kg/kg]
real (kind=kind_phys) :: spec_humid_sfc_bare ! out | surface specific humidty over bare soil [kg/kg]

real (kind=kind_phys) :: ustarx ! inout |surface friction velocity
real (kind=kind_phys) :: prslkix ! in exner function
real (kind=kind_phys) :: prsik1x ! in exner function
Expand Down Expand Up @@ -948,6 +950,10 @@ subroutine noahmpdrv_run &
ch_vegetated = 0.0
ch_bare_ground = ch_noahmp
canopy_heat_storage = 0.0
lai_sunlit = 0.0
lai_shaded = 0.0
rs_sunlit = 0.0
rs_shaded = 0.0

else ! not glacier

Expand Down Expand Up @@ -1056,7 +1062,17 @@ subroutine noahmpdrv_run &
chxy (i) = ch_noahmp
zorl (i) = z0_total * 100.0 ! convert to cm
ztmax (i) = z0h_total


!LAI-scale canopy resistance based on weighted sunlit shaded fraction
if(rs_sunlit .le. 0.0 .or. rs_shaded .le. 0.0 .or. &
lai_sunlit .eq. 0.0 .or. lai_shaded .eq. 0.0) then
rca(i) = parameters%rsmax
else !calculate LAI-scale canopy conductance (1/Rs)
rca(i) = ((1.0/(rs_sunlit+leaf_air_resistance)*lai_sunlit) + &
((1.0/(rs_shaded+leaf_air_resistance))*lai_shaded))
rca(i) = max((1.0/rca(i)),parameters%rsmin) !resistance
end if

smc (i,:) = soil_moisture_vol
slc (i,:) = soil_liquid_vol
snowxy (i) = float(snow_levels)
Expand Down
8 changes: 8 additions & 0 deletions drivers/ccpp/noahmpdrv.meta
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Expand Up @@ -1360,6 +1360,14 @@
type = real
kind = kind_phys
intent = out
[rca]
standard_name = aerodynamic_resistance_in_canopy
long_name = canopy resistance
units = s m-1
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
54 changes: 39 additions & 15 deletions drivers/ccpp/sfc_diff.f
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Expand Up @@ -62,6 +62,7 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
& flag_iter,redrag, & !intent(in)
& flag_lakefreeze, & !intent(in)
& u10m,v10m,sfc_z0_type, & !hafs,z0 type !intent(in)
& u1,v1,usfco,vsfco,icplocn2atm, &
& wet,dry,icy, & !intent(in)
& thsfc_loc, & !intent(in)
& tskin_wat, tskin_lnd, tskin_ice, & !intent(in)
Expand All @@ -86,6 +87,7 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
integer, parameter :: kp = kind_phys
integer, intent(in) :: im, ivegsrc
integer, intent(in) :: sfc_z0_type ! option for calculating surface roughness length over ocean
integer, intent(in) :: icplocn2atm ! option for including ocean current in the computation of flux

integer, dimension(:), intent(in) :: vegtype

Expand All @@ -97,6 +99,8 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
logical, intent(in) :: thsfc_loc ! Flag for reference pressure in theta calculation

real(kind=kind_phys), dimension(:), intent(in) :: u10m,v10m
real(kind=kind_phys), dimension(:), intent(in) :: u1,v1
real(kind=kind_phys), dimension(:), intent(in) :: usfco,vsfco
real(kind=kind_phys), intent(in) :: rvrdm1, eps, epsm1, grav
real(kind=kind_phys), dimension(:), intent(in) :: &
& ps,t1,q1,z1,garea,prsl1,prslki,prsik1,prslk1, &
Expand Down Expand Up @@ -127,6 +131,7 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
! locals
!
integer i
real(kind=kind_phys) :: windrel
!
real(kind=kind_phys) :: rat, tv1, thv1, restar, wind10m,
& czilc, tem1, tem2, virtfac
Expand Down Expand Up @@ -351,11 +356,29 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
& * virtfac
endif

z0 = 0.01_kp * z0rl_wat(i)
z0max = max(zmin, min(z0,z1(i)))
! ustar_wat(i) = sqrt(grav * z0 / charnock)
wind10m = sqrt(u10m(i)*u10m(i)+v10m(i)*v10m(i))
if (icplocn2atm == 0) then
wind10m=sqrt(u10m(i)*u10m(i)+v10m(i)*v10m(i))
windrel=wind(i)
else if (icplocn2atm ==1) then
wind10m=sqrt((u10m(i)-usfco(i))**2+(v10m(i)-vsfco(i))**2)
windrel=sqrt((u1(i)-usfco(i))**2+(v1(i)-vsfco(i))**2)
endif

if (sfc_z0_type == -1) then ! using wave model derived momentum roughness
tem1 = 0.11 * vis / ustar_wat(i)
z0 = tem1 + 0.01_kp * z0rl_wav(i)

if (redrag) then
z0max = max(min(z0, z0s_max),1.0e-7_kp)
else
z0max = max(min(z0,0.1_kp), 1.0e-7_kp)
endif
z0rl_wat(i) = 100.0_kp * z0max ! cm
else
z0 = 0.01_kp * z0rl_wat(i)
z0max = max(zmin, min(z0,z1(i)))
endif
!
!** test xubin's new z0

! ztmax = z0max
Expand Down Expand Up @@ -385,7 +408,7 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
!
call stability
! --- inputs:
& (z1(i), zvfun(i), gdx, tv1, thv1, wind(i),
& (z1(i), zvfun(i), gdx, tv1, thv1, windrel,
& z0max, ztmax_wat(i), tvs, grav, thsfc_loc,
! --- outputs:
& rb_wat(i), fm_wat(i), fh_wat(i), fm10_wat(i), fh2_wat(i),
Expand Down Expand Up @@ -425,17 +448,18 @@ subroutine sfc_diff_run (im,rvrdm1,eps,epsm1,grav, & !intent(in)
z0rl_wat(i) = 1.0e-4_kp
endif

elseif (z0rl_wav(i) <= 1.0e-7_kp .or. &
& z0rl_wav(i) > 1.0_kp) then
! z0 = (charnock / grav) * ustar_wat(i) * ustar_wat(i)
tem1 = 0.11 * vis / ustar_wat(i)
z0 = tem1 + (charnock/grav)*ustar_wat(i)*ustar_wat(i)
elseif (z0rl_wav(i) <= 1.0e-7_kp .or.
& z0rl_wav(i) > 1.0_kp) then
! z0 = (charnock / grav) * ustar_wat(i) * ustar_wat(i)
tem1 = 0.11 * vis / ustar_wat(i)
z0 = tem1 + (charnock/grav)*ustar_wat(i)*ustar_wat(i)

if (redrag) then
z0rl_wat(i) = 100.0_kp * max(min(z0, z0s_max),1.0e-7_kp)
else
z0rl_wat(i) = 100.0_kp * max(min(z0,0.1_kp), 1.0e-7_kp)
endif

if (redrag) then
z0rl_wat(i) = 100.0_kp * max(min(z0, z0s_max),1.0e-7_kp)
else
z0rl_wat(i) = 100.0_kp * max(min(z0,0.1_kp), 1.0e-7_kp)
endif
endif

endif ! end of if(open ocean)
Expand Down
2 changes: 1 addition & 1 deletion drivers/nuopc/lnd_comp_driver.F90
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Expand Up @@ -660,7 +660,7 @@ subroutine drv_run(gcomp, noahmp, rc)
noahmp%model%snowc , noahmp%model%stm , &
noahmp%model%snohf , noahmp%model%smcwlt2 , noahmp%model%smcref2 , &
noahmp%model%wet1 , noahmp%model%t2mmp , noahmp%model%q2mp , &
noahmp%model%zvfun , noahmp%model%ztmax , &
noahmp%model%zvfun , noahmp%model%ztmax , noahmp%model%rca , &
noahmp%static%errmsg , noahmp%static%errflg)

!----------------------
Expand Down
3 changes: 3 additions & 0 deletions drivers/nuopc/lnd_comp_types.F90
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Expand Up @@ -202,6 +202,7 @@ module lnd_comp_types
real(kind=r8), allocatable :: q2mp (:) ! combined q2m from tiles
real(kind=r8), allocatable :: zvfun (:) ! some function of vegetation used for gfs stability
real(kind=r8), allocatable :: ztmax (:) ! bounded surface roughness length for heat over land
real(kind=r8), allocatable :: rca (:) ! total canopy/stomatal resistance (s/m)
real(kind=r8), allocatable :: rho (:) ! air density
real(kind=r8), allocatable :: pores (:) ! max soil moisture for a given soil type for land surface model
real(kind=r8), allocatable :: resid (:) ! min soil moisture for a given soil type for land surface model
Expand Down Expand Up @@ -493,6 +494,7 @@ subroutine InitializeAllocate(this, begl, endl, km, lsnowl)
allocate(this%model%q2mp (begl:endl))
allocate(this%model%zvfun (begl:endl))
allocate(this%model%ztmax (begl:endl))
allocate(this%model%rca (begl:endl))
allocate(this%model%rho (begl:endl))
allocate(this%model%pores (30))
allocate(this%model%resid (30))
Expand Down Expand Up @@ -661,6 +663,7 @@ subroutine InitializeDefault(this)
this%model%q2mp = 0.0_r8
this%model%zvfun = 0.0_r8
this%model%ztmax = 0.0_r8
this%model%rca = 0.0_r8
this%model%rho = 0.0_r8
this%model%pores = 0.0_r8
this%model%resid = 0.0_r8
Expand Down
10 changes: 7 additions & 3 deletions src/module_sf_noahmplsm.F90
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Expand Up @@ -2013,6 +2013,8 @@ subroutine energy (parameters,ice ,vegtyp ,ist ,nsnow ,nsoil , & !in
chuc = 0.
chv2 = 0.
rb = 0.
laisun = 0.
laisha = 0.

cdmnv = 0.0
ezpdv = 0.0
Expand Down Expand Up @@ -2263,7 +2265,8 @@ subroutine energy (parameters,ice ,vegtyp ,ist ,nsnow ,nsoil , & !in
csigmaf1, & !out
!jref:start
qc ,qsfc ,psfc , & !in
q2v ,chv2, chleaf, chuc) !inout
q2v ,chv2 ,chleaf ,chuc , &
rb) !out

! new coupling code

Expand Down Expand Up @@ -3712,7 +3715,8 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
t2mv ,psnsun ,psnsha ,canhs , & !out
csigmaf1, & !out
qc ,qsfc ,psfc , & !in
q2v ,cah2 ,chleaf ,chuc ) !inout
q2v ,cah2 ,chleaf ,chuc , & !inout
rb) !out

! --------------------------------------------------------------------------------------------------
! use newton-raphson iteration to solve for vegetation (tv) and
Expand Down Expand Up @@ -3836,6 +3840,7 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
real (kind=kind_phys), intent(out) :: chuc !< under canopy exchange coefficient
real (kind=kind_phys), intent(out) :: canhs !< canopy heat storage change (w/m2)
real (kind=kind_phys), intent(out) :: q2v !<
real (kind=kind_phys), intent(out) :: rb !< bulk leaf boundary layer resistance (s/m)
real (kind=kind_phys) :: cah !< sensible heat conductance, canopy air to zlvl air (m/s)
real (kind=kind_phys) :: u10v !< 10 m wind speed in eastward dir (m/s)
real (kind=kind_phys) :: v10v !< 10 m wind speed in eastward dir (m/s)
Expand All @@ -3852,7 +3857,6 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
real (kind=kind_phys) :: z0mo !roughness length for intermediate output only (m)
real (kind=kind_phys) :: z0h !roughness length, sensible heat (m)
real (kind=kind_phys) :: z0hg !roughness length, sensible heat (m)
real (kind=kind_phys) :: rb !bulk leaf boundary layer resistance (s/m)
real (kind=kind_phys) :: ramc !aerodynamic resistance for momentum (s/m)
real (kind=kind_phys) :: rahc !aerodynamic resistance for sensible heat (s/m)
real (kind=kind_phys) :: rawc !aerodynamic resistance for water vapor (s/m)
Expand Down
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