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use sfc_diag to diagnose 2m t/q inside NoahMP #43

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use sfc_diag to diagnose 2m t/q inside NoahMP #43

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76 changes: 69 additions & 7 deletions physics/module_sf_noahmplsm.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -414,7 +414,7 @@ subroutine noahmp_sflx (parameters, &
pblhx , iz0tlnd , itime ,psi_opt ,&
prcpconv, prcpnonc, prcpshcv, prcpsnow, prcpgrpl, prcphail, & ! in : forcing
tbot , co2air , o2air , foln , ficeold , zlvl , & ! in : forcing
ep_1 , ep_2 , cp , & ! in : constants
ep_1 , ep_2 , epsm1 , cp , & ! in : constants
albold , sneqvo , & ! in/out :
stc , sh2o , smc , tah , eah , fwet , & ! in/out :
canliq , canice , tv , tg , qsfc, qsnow, qrain, & ! in/out :
Expand Down Expand Up @@ -462,6 +462,7 @@ subroutine noahmp_sflx (parameters, &
integer , intent(in) :: jloc !< grid index
real (kind=kind_phys) , intent(in) :: ep_1
real (kind=kind_phys) , intent(in) :: ep_2
real (kind=kind_phys) , intent(in) :: epsm1
real (kind=kind_phys) , intent(in) :: cp
real (kind=kind_phys) , intent(in) :: dt !< time step [sec]
real (kind=kind_phys), dimension( 1:nsoil), intent(in) :: zsoil !< layer-bottom depth from soil surf (m)
Expand Down Expand Up @@ -816,7 +817,7 @@ subroutine noahmp_sflx (parameters, &
fveg ,shdfac, pahv ,pahg ,pahb , & !in
qsnow ,dzsnso ,lat ,canliq ,canice ,iloc, jloc , & !in
thsfc_loc, prslkix,prsik1x,prslk1x,garea1, & !in
pblhx ,iz0tlnd, itime ,psi_opt, ep_1, ep_2, cp, &
pblhx ,iz0tlnd, itime ,psi_opt, ep_1, ep_2, epsm1, cp, &
z0wrf ,z0hwrf , & !out
imelt ,snicev ,snliqv ,epore ,t2m ,fsno , & !out
sav ,sag ,qmelt ,fsa ,fsr ,taux , & !out
Expand Down Expand Up @@ -1655,7 +1656,7 @@ subroutine energy (parameters,ice ,vegtyp ,ist ,nsnow ,nsoil , & !in
fveg ,shdfac, pahv ,pahg ,pahb , & !in
qsnow ,dzsnso ,lat ,canliq ,canice ,iloc , jloc, & !in
thsfc_loc, prslkix,prsik1x,prslk1x,garea1, & !in
pblhx , iz0tlnd, itime,psi_opt,ep_1, ep_2, cp, &
pblhx , iz0tlnd, itime,psi_opt,ep_1, ep_2, epsm1, cp, &
z0wrf ,z0hwrf , & !out
imelt ,snicev ,snliqv ,epore ,t2m ,fsno , & !out
sav ,sag ,qmelt ,fsa ,fsr ,taux , & !out
Expand Down Expand Up @@ -1739,6 +1740,7 @@ subroutine energy (parameters,ice ,vegtyp ,ist ,nsnow ,nsoil , & !in
real (kind=kind_phys) , intent(in) :: pblhx ! pbl height
real (kind=kind_phys) , intent(in) :: ep_1
real (kind=kind_phys) , intent(in) :: ep_2
real (kind=kind_phys) , intent(in) :: epsm1
real (kind=kind_phys) , intent(in) :: cp
integer , intent(in) :: iz0tlnd
integer , intent(in) :: itime
Expand Down Expand Up @@ -2202,7 +2204,7 @@ subroutine energy (parameters,ice ,vegtyp ,ist ,nsnow ,nsoil , & !in
foln ,co2air ,o2air ,btran ,sfcprs , & !in
rhsur ,iloc ,jloc ,q2 ,pahv ,pahg , & !in
thsfc_loc, prslkix,prsik1x,prslk1x, garea1, & !in
pblhx ,iz0tlnd ,itime ,psi_opt ,ep_1, ep_2, cp, &
pblhx ,iz0tlnd ,itime ,psi_opt ,ep_1, ep_2, epsm1,cp, &
eah ,tah ,tv ,tgv ,cmv, ustarx , & !inout
#ifdef CCPP
chv ,dx ,dz8w ,errmsg ,errflg , & !inout
Expand Down Expand Up @@ -2239,7 +2241,7 @@ subroutine energy (parameters,ice ,vegtyp ,ist ,nsnow ,nsoil , & !in
emg ,stc ,df ,rsurf ,latheag , & !in
gammag ,rhsur ,iloc ,jloc ,q2 ,pahb , & !in
thsfc_loc, prslkix,prsik1x,prslk1x,vegtyp,fveg,shdfac,garea1, & !in
pblhx ,iz0tlnd ,itime ,psi_opt ,ep_1, ep_2, cp, &
pblhx ,iz0tlnd ,itime ,psi_opt ,ep_1, ep_2, epsm1, cp, &
#ifdef CCPP
tgb ,cmb ,chb, ustarx,errmsg ,errflg , & !inout
#else
Expand Down Expand Up @@ -3644,7 +3646,7 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
foln ,co2air ,o2air ,btran ,sfcprs , & !in
rhsur ,iloc ,jloc ,q2 ,pahv ,pahg , & !in
thsfc_loc, prslkix,prsik1x,prslk1x, garea1, & !in
pblhx ,iz0tlnd ,itime ,psi_opt ,ep_1, ep_2, cp, &
pblhx ,iz0tlnd ,itime ,psi_opt ,ep_1, ep_2, epsm1, cp, &
eah ,tah ,tv ,tg ,cm,ustarx,& !inout
#ifdef CCPP
ch ,dx ,dz8w ,errmsg ,errflg , & !inout
Expand All @@ -3666,6 +3668,7 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
! -sav + irc[tv] + shc[tv] + evc[tv] + tr[tv] + canhs[tv] = 0
! -sag + irg[tg] + shg[tg] + evg[tg] + gh[tg] = 0
! --------------------------------------------------------------------------------------------------
use funcphys, only : fpvs
implicit none
! --------------------------------------------------------------------------------------------------
! input
Expand Down Expand Up @@ -3695,6 +3698,7 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
real (kind=kind_phys) , intent(in) :: pblhx ! pbl height
real (kind=kind_phys) , intent(in) :: ep_1
real (kind=kind_phys) , intent(in) :: ep_2
real (kind=kind_phys) , intent(in) :: epsm1
real (kind=kind_phys) , intent(in) :: cp
integer , intent(in) :: iz0tlnd
integer , intent(in) :: itime
Expand Down Expand Up @@ -3906,8 +3910,12 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &

real (kind=kind_phys) :: t, tdc !kelvin to degree celsius with limit -50 to +50

real(kind=kind_phys) :: fhi, qss, wrk
real(kind=kind_phys), parameter :: qmin=1.0e-8

character(len=80) :: message


tdc(t) = min( 50., max(-50.,(t-tfrz)) )
! ---------------------------------------------------------------------------------------------

Expand Down Expand Up @@ -4306,6 +4314,30 @@ subroutine vege_flux(parameters,nsnow ,nsoil ,isnow ,vegtyp ,veg , &
q2v = qsfc - ((evc+tr)/fveg+evg)/(latheav*rhoair) * 1./cq2v
endif

! use sfc_diag to calculate t2mv and q2v for opt_sfc=1&3
if(opt_stc == 1 .or. opt_stc == 3) then

fhi = fh2/fh
wrk = 1.0 - fhi
if(thsfc_loc) then ! Use local potential temperature
t2mv = tv*wrk + sfctmp*prslkix*fhi - (grav+grav)/cp
else ! Use potential temperature referenced to 1000 hPa
t2mv = tv*wrk + sfctmp*fhi - (grav+grav)/cp
endif

if(evg >= 0.) then ! for evaporation>0, use inferred qsurf to deduce q2v
q2v = qsfc*wrk + max(qmin,qair)*fhi
else ! for dew formation, use saturated q at tskin
qss = fpvs(tv)
qss = ep_2 * qss / (psfc + epsm1 * qss)
q2v= qss*wrk + max(qmin,qair)*fhi
endif
qss = fpvs(t2mv)
qss = ep_2 * qss / (psfc + epsm1 * qss)
q2v = min(q2v,qss)

endif

! update ch for output
ch = cah
chleaf = cvh
Expand All @@ -4325,7 +4357,7 @@ subroutine bare_flux (parameters,nsnow ,nsoil ,isnow ,dt ,sag , &
emg ,stc ,df ,rsurf ,lathea , & !in
gamma ,rhsur ,iloc ,jloc ,q2 ,pahb , & !in
thsfc_loc, prslkix,prsik1x,prslk1x,vegtyp,fveg,shdfac,garea1, & !in
pblhx , iz0tlnd , itime ,psi_opt,ep_1,ep_2,cp ,&
pblhx , iz0tlnd , itime ,psi_opt,ep_1,ep_2,epsm1, cp ,&
#ifdef CCPP
tgb ,cm ,ch,ustarx,errmsg ,errflg , & !inout
#else
Expand All @@ -4344,6 +4376,7 @@ subroutine bare_flux (parameters,nsnow ,nsoil ,isnow ,dt ,sag , &
! bare soil:
! -sab + irb[tg] + shb[tg] + evb[tg] + ghb[tg] = 0
! ----------------------------------------------------------------------
use funcphys, only : fpvs
implicit none
! ----------------------------------------------------------------------
! input
Expand Down Expand Up @@ -4381,6 +4414,7 @@ subroutine bare_flux (parameters,nsnow ,nsoil ,isnow ,dt ,sag , &
real (kind=kind_phys), intent(in) :: pblhx !pbl height (m)
real (kind=kind_phys), intent(in) :: ep_1
real (kind=kind_phys), intent(in) :: ep_2
real (kind=kind_phys), intent(in) :: epsm1
real (kind=kind_phys), intent(in) :: cp
integer, intent(in) :: iz0tlnd
integer, intent(in) :: itime
Expand Down Expand Up @@ -4529,6 +4563,10 @@ subroutine bare_flux (parameters,nsnow ,nsoil ,isnow ,dt ,sag , &
real (kind=kind_phys) :: temptrs

real (kind=kind_phys) :: t, tdc !kelvin to degree celsius with limit -50 to +50

real(kind=kind_phys) :: fhi, qss, wrk
real(kind=kind_phys), parameter :: qmin=1.0e-8

tdc(t) = min( 50., max(-50.,(t-tfrz)) )

! -----------------------------------------------------------------
Expand Down Expand Up @@ -4765,8 +4803,32 @@ subroutine bare_flux (parameters,nsnow ,nsoil ,isnow ,dt ,sag , &
end if
endif ! 4

! use sfc_diag to calculate t2mv and q2v for opt_sfc=1&3
if(opt_stc == 1 .or. opt_stc == 3) then

fhi = fh2/fh
wrk = 1.0 - fhi
if(thsfc_loc) then ! Use local potential temperature
t2mb = tgb*wrk + sfctmp*prslkix*fhi - (grav+grav)/cp
else ! Use potential temperature referenced to 1000 hPa
t2mb = tgb*wrk + sfctmp*fhi - (grav+grav)/cp
endif

if(evb >= 0.) then ! for evaporation>0, use inferred qsurf to deduce q2v
q2b = qsfc*wrk + max(qmin,qair)*fhi
else ! for dew formation, use saturated q at tskin
qss = fpvs(tgb)
qss = ep_2 * qss / (psfc + epsm1 * qss)
q2b= qss*wrk + max(qmin,qair)*fhi
endif
qss = fpvs(t2mb)
qss = ep_2 * qss / (psfc + epsm1 * qss)
q2b = min(q2b,qss)

endif
if (parameters%urban_flag) q2b = qsfc


! update ch
ch = ehb

Expand Down
2 changes: 1 addition & 1 deletion physics/noahmpdrv.F90
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Expand Up @@ -879,7 +879,7 @@ subroutine noahmpdrv_run &
precip_graupel ,precip_hail ,temperature_soil_bot , &
co2_air ,o2_air ,foliage_nitrogen , &
snow_ice_frac_old ,forcing_height , &
con_fvirt ,con_eps ,con_cp , &
con_fvirt ,con_eps,con_epsm1 ,con_cp , &
snow_albedo_old ,snow_water_equiv_old , &
temperature_snow_soil ,soil_liquid_vol ,soil_moisture_vol , &
temperature_canopy_air,vapor_pres_canopy_air ,canopy_wet_fraction , &
Expand Down