#include <misc.h>
#include <preproc.h>
module Biogeophysics2Mod 1,1
!-----------------------------------------------------------------------
!BOP
!
! !MODULE: Biogeophysics2Mod
!
! !DESCRIPTION:
! Performs the calculation of soil/snow and ground temperatures
! and updates surface fluxes based on the new ground temperature.
!
! !USES:
use shr_kind_mod, only: r8 => shr_kind_r8
!
! !PUBLIC TYPES:
implicit none
save
!
! !PUBLIC MEMBER FUNCTIONS:
public :: Biogeophysics2 ! Calculate soil/snow and ground temperatures
!
! !REVISION HISTORY:
! Created by Mariana Vertenstein
!
!EOP
!-----------------------------------------------------------------------
contains
!-----------------------------------------------------------------------
!BOP
!
! !IROUTINE: Biogeophysics2
!
! !INTERFACE:
subroutine Biogeophysics2 (lbl, ubl, lbc, ubc, lbp, ubp, & 1,10
num_urbanl, filter_urbanl, num_nolakec, filter_nolakec, &
num_nolakep, filter_nolakep)
!
! !DESCRIPTION:
! This is the main subroutine to execute the calculation of soil/snow and
! ground temperatures and update surface fluxes based on the new ground
! temperature
!
! Calling sequence is:
! Biogeophysics2: surface biogeophysics driver
! -> SoilTemperature: soil/snow and ground temperatures
! -> SoilTermProp thermal conductivities and heat capacities
! -> Tridiagonal tridiagonal matrix solution
! -> PhaseChange phase change of liquid/ice contents
!
! (1) Snow and soil temperatures
! o The volumetric heat capacity is calculated as a linear combination
! in terms of the volumetric fraction of the constituent phases.
! o The thermal conductivity of soil is computed from
! the algorithm of Johansen (as reported by Farouki 1981), and the
! conductivity of snow is from the formulation used in
! SNTHERM (Jordan 1991).
! o Boundary conditions:
! F = Rnet - Hg - LEg (top), F= 0 (base of the soil column).
! o Soil / snow temperature is predicted from heat conduction
! in 10 soil layers and up to 5 snow layers.
! The thermal conductivities at the interfaces between two
! neighboring layers (j, j+1) are derived from an assumption that
! the flux across the interface is equal to that from the node j
! to the interface and the flux from the interface to the node j+1.
! The equation is solved using the Crank-Nicholson method and
! results in a tridiagonal system equation.
!
! (2) Phase change (see PhaseChange.F90)
!
! !USES:
use clmtype
use clm_atmlnd , only : clm_a2l
use clm_time_manager , only : get_step_size
use clm_varcon , only : hvap, cpair, grav, vkc, tfrz, sb, &
isturb, icol_roof, icol_sunwall, icol_shadewall, istsoil
use clm_varpar , only : nlevsno, nlevgrnd, max_pft_per_col
use SoilTemperatureMod, only : SoilTemperature
use subgridAveMod , only : p2c
!
! !ARGUMENTS:
implicit none
integer, intent(in) :: lbp, ubp ! pft bounds
integer, intent(in) :: lbc, ubc ! column bounds
integer, intent(in) :: lbl, ubl ! landunit bounds
integer, intent(in) :: num_nolakec ! number of column non-lake points in column filter
integer, intent(in) :: filter_nolakec(ubc-lbc+1) ! column filter for non-lake points
integer, intent(in) :: num_urbanl ! number of urban landunits in clump
integer, intent(in) :: filter_urbanl(ubl-lbl+1) ! urban landunit filter
integer, intent(in) :: num_nolakep ! number of column non-lake points in pft filter
integer, intent(in) :: filter_nolakep(ubp-lbp+1) ! pft filter for non-lake points
!
! !CALLED FROM:
! subroutine clm_driver1
!
! !REVISION HISTORY:
! 15 September 1999: Yongjiu Dai; Initial code
! 15 December 1999: Paul Houser and Jon Radakovich; F90 Revision
! Migrated to clm2.0 by Keith Oleson and Mariana Vertenstein
! Migrated to clm2.1 new data structures by Peter Thornton and M. Vertenstein
!
! !LOCAL VARIABLES:
!
! local pointers to implicit in arguments
!
integer , pointer :: ctype(:) ! column type
integer , pointer :: ltype(:) ! landunit type
integer , pointer :: pcolumn(:) ! pft's column index
integer , pointer :: plandunit(:) ! pft's landunit index
integer , pointer :: pgridcell(:) ! pft's gridcell index
real(r8), pointer :: pwtgcell(:) ! pft's weight relative to corresponding column
integer , pointer :: npfts(:) ! column's number of pfts
integer , pointer :: pfti(:) ! column's beginning pft index
integer , pointer :: snl(:) ! number of snow layers
logical , pointer :: do_capsnow(:) ! true => do snow capping
real(r8), pointer :: forc_lwrad(:) ! downward infrared (longwave) radiation (W/m**2)
real(r8), pointer :: emg(:) ! ground emissivity
real(r8), pointer :: htvp(:) ! latent heat of vapor of water (or sublimation) [j/kg]
real(r8), pointer :: t_grnd(:) ! ground temperature (Kelvin)
integer , pointer :: frac_veg_nosno(:) ! fraction of vegetation not covered by snow (0 OR 1 now) [-]
real(r8), pointer :: cgrnds(:) ! deriv, of soil sensible heat flux wrt soil temp [w/m2/k]
real(r8), pointer :: cgrndl(:) ! deriv of soil latent heat flux wrt soil temp [w/m**2/k]
real(r8), pointer :: sabg(:) ! solar radiation absorbed by ground (W/m**2)
real(r8), pointer :: dlrad(:) ! downward longwave radiation below the canopy [W/m2]
real(r8), pointer :: ulrad(:) ! upward longwave radiation above the canopy [W/m2]
real(r8), pointer :: eflx_sh_veg(:) ! sensible heat flux from leaves (W/m**2) [+ to atm]
real(r8), pointer :: qflx_evap_veg(:) ! vegetation evaporation (mm H2O/s) (+ = to atm)
real(r8), pointer :: qflx_tran_veg(:) ! vegetation transpiration (mm H2O/s) (+ = to atm)
real(r8), pointer :: qflx_evap_can(:) ! evaporation from leaves and stems (mm H2O/s) (+ = to atm)
real(r8), pointer :: wtcol(:) ! pft weight relative to column
real(r8), pointer :: tssbef(:,:) ! soil/snow temperature before update
real(r8), pointer :: t_soisno(:,:) ! soil temperature (Kelvin)
real(r8), pointer :: h2osoi_ice(:,:) ! ice lens (kg/m2) (new)
real(r8), pointer :: h2osoi_liq(:,:) ! liquid water (kg/m2) (new)
real(r8), pointer :: eflx_building_heat(:) ! heat flux from urban building interior to walls, roof
real(r8), pointer :: eflx_traffic_pft(:) ! traffic sensible heat flux (W/m**2)
real(r8), pointer :: eflx_wasteheat_pft(:) ! sensible heat flux from urban heating/cooling sources of waste heat (W/m**2)
real(r8), pointer :: eflx_heat_from_ac_pft(:) ! sensible heat flux put back into canyon due to removal by AC (W/m**2)
real(r8), pointer :: canyon_hwr(:) ! ratio of building height to street width (-)
! local pointers to implicit inout arguments
!
real(r8), pointer :: eflx_sh_grnd(:) ! sensible heat flux from ground (W/m**2) [+ to atm]
real(r8), pointer :: qflx_evap_soi(:) ! soil evaporation (mm H2O/s) (+ = to atm)
real(r8), pointer :: qflx_snwcp_liq(:) ! excess rainfall due to snow capping (mm H2O /s)
real(r8), pointer :: qflx_snwcp_ice(:) ! excess snowfall due to snow capping (mm H2O /s)
!
! local pointers to implicit out arguments
!
real(r8), pointer :: dt_grnd(:) ! change in t_grnd, last iteration (Kelvin)
real(r8), pointer :: eflx_soil_grnd(:) ! soil heat flux (W/m**2) [+ = into soil]
real(r8), pointer :: eflx_soil_grnd_u(:)! urban soil heat flux (W/m**2) [+ = into soil]
real(r8), pointer :: eflx_soil_grnd_r(:)! rural soil heat flux (W/m**2) [+ = into soil]
real(r8), pointer :: eflx_sh_tot(:) ! total sensible heat flux (W/m**2) [+ to atm]
real(r8), pointer :: eflx_sh_tot_u(:) ! urban total sensible heat flux (W/m**2) [+ to atm]
real(r8), pointer :: eflx_sh_tot_r(:) ! rural total sensible heat flux (W/m**2) [+ to atm]
real(r8), pointer :: qflx_evap_tot(:) ! qflx_evap_soi + qflx_evap_veg + qflx_tran_veg
real(r8), pointer :: eflx_lh_tot(:) ! total latent heat flux (W/m**2) [+ to atm]
real(r8), pointer :: eflx_lh_tot_u(:) ! urban total latent heat flux (W/m**2) [+ to atm]
real(r8), pointer :: eflx_lh_tot_r(:) ! rural total latent heat flux (W/m**2) [+ to atm]
real(r8), pointer :: qflx_evap_grnd(:) ! ground surface evaporation rate (mm H2O/s) [+]
real(r8), pointer :: qflx_sub_snow(:) ! sublimation rate from snow pack (mm H2O /s) [+]
real(r8), pointer :: qflx_dew_snow(:) ! surface dew added to snow pack (mm H2O /s) [+]
real(r8), pointer :: qflx_dew_grnd(:) ! ground surface dew formation (mm H2O /s) [+]
real(r8), pointer :: eflx_lwrad_out(:) ! emitted infrared (longwave) radiation (W/m**2)
real(r8), pointer :: eflx_lwrad_net(:) ! net infrared (longwave) rad (W/m**2) [+ = to atm]
real(r8), pointer :: eflx_lwrad_net_u(:) ! urban net infrared (longwave) rad (W/m**2) [+ = to atm]
real(r8), pointer :: eflx_lwrad_net_r(:) ! rural net infrared (longwave) rad (W/m**2) [+ = to atm]
real(r8), pointer :: eflx_lh_vege(:) ! veg evaporation heat flux (W/m**2) [+ to atm]
real(r8), pointer :: eflx_lh_vegt(:) ! veg transpiration heat flux (W/m**2) [+ to atm]
real(r8), pointer :: eflx_lh_grnd(:) ! ground evaporation heat flux (W/m**2) [+ to atm]
real(r8), pointer :: errsoi_pft(:) ! pft-level soil/lake energy conservation error (W/m**2)
real(r8), pointer :: errsoi_col(:) ! column-level soil/lake energy conservation error (W/m**2)
!
!
! !OTHER LOCAL VARIABLES:
!EOP
!
integer :: p,c,g,j,pi,l ! indices
integer :: fc,fp ! lake filtered column and pft indices
real(r8) :: dtime ! land model time step (sec)
real(r8) :: egsmax(lbc:ubc) ! max. evaporation which soil can provide at one time step
real(r8) :: egirat(lbc:ubc) ! ratio of topsoil_evap_tot : egsmax
real(r8) :: tinc(lbc:ubc) ! temperature difference of two time step
real(r8) :: xmf(lbc:ubc) ! total latent heat of phase change of ground water
real(r8) :: sumwt(lbc:ubc) ! temporary
real(r8) :: evaprat(lbp:ubp) ! ratio of qflx_evap_soi/topsoil_evap_tot
real(r8) :: save_qflx_evap_soi ! temporary storage for qflx_evap_soi
real(r8) :: topsoil_evap_tot(lbc:ubc) ! column-level total evaporation from top soil layer
real(r8) :: fact(lbc:ubc, -nlevsno+1:nlevgrnd) ! used in computing tridiagonal matrix
real(r8) :: eflx_lwrad_del(lbp:ubp) ! update due to eflx_lwrad
!-----------------------------------------------------------------------
! Assign local pointers to derived subtypes components (gridcell-level)
forc_lwrad => clm_a2l%forc_lwrad
! Assign local pointers to derived subtypes components (landunit-level)
ltype => clm3%g%l%itype
canyon_hwr => clm3%g%l%canyon_hwr
! Assign local pointers to derived subtypes components (column-level)
ctype => clm3%g%l%c%itype
npfts => clm3%g%l%c%npfts
pfti => clm3%g%l%c%pfti
snl => clm3%g%l%c%cps%snl
do_capsnow => clm3%g%l%c%cps%do_capsnow
htvp => clm3%g%l%c%cps%htvp
emg => clm3%g%l%c%cps%emg
t_grnd => clm3%g%l%c%ces%t_grnd
dt_grnd => clm3%g%l%c%ces%dt_grnd
t_soisno => clm3%g%l%c%ces%t_soisno
tssbef => clm3%g%l%c%ces%tssbef
h2osoi_ice => clm3%g%l%c%cws%h2osoi_ice
h2osoi_liq => clm3%g%l%c%cws%h2osoi_liq
errsoi_col => clm3%g%l%c%cebal%errsoi
eflx_building_heat => clm3%g%l%c%cef%eflx_building_heat
! Assign local pointers to derived subtypes components (pft-level)
pcolumn => clm3%g%l%c%p%column
plandunit => clm3%g%l%c%p%landunit
pgridcell => clm3%g%l%c%p%gridcell
pwtgcell => clm3%g%l%c%p%wtgcell
frac_veg_nosno => clm3%g%l%c%p%pps%frac_veg_nosno
sabg => clm3%g%l%c%p%pef%sabg
dlrad => clm3%g%l%c%p%pef%dlrad
ulrad => clm3%g%l%c%p%pef%ulrad
eflx_sh_grnd => clm3%g%l%c%p%pef%eflx_sh_grnd
eflx_sh_veg => clm3%g%l%c%p%pef%eflx_sh_veg
qflx_evap_soi => clm3%g%l%c%p%pwf%qflx_evap_soi
qflx_evap_veg => clm3%g%l%c%p%pwf%qflx_evap_veg
qflx_tran_veg => clm3%g%l%c%p%pwf%qflx_tran_veg
qflx_evap_can => clm3%g%l%c%p%pwf%qflx_evap_can
qflx_snwcp_liq => clm3%g%l%c%p%pwf%qflx_snwcp_liq
qflx_snwcp_ice => clm3%g%l%c%p%pwf%qflx_snwcp_ice
qflx_evap_tot => clm3%g%l%c%p%pwf%qflx_evap_tot
qflx_evap_grnd => clm3%g%l%c%p%pwf%qflx_evap_grnd
qflx_sub_snow => clm3%g%l%c%p%pwf%qflx_sub_snow
qflx_dew_snow => clm3%g%l%c%p%pwf%qflx_dew_snow
qflx_dew_grnd => clm3%g%l%c%p%pwf%qflx_dew_grnd
eflx_soil_grnd => clm3%g%l%c%p%pef%eflx_soil_grnd
eflx_soil_grnd_u => clm3%g%l%c%p%pef%eflx_soil_grnd_u
eflx_soil_grnd_r => clm3%g%l%c%p%pef%eflx_soil_grnd_r
eflx_sh_tot => clm3%g%l%c%p%pef%eflx_sh_tot
eflx_sh_tot_u => clm3%g%l%c%p%pef%eflx_sh_tot_u
eflx_sh_tot_r => clm3%g%l%c%p%pef%eflx_sh_tot_r
eflx_lh_tot => clm3%g%l%c%p%pef%eflx_lh_tot
eflx_lh_tot_u => clm3%g%l%c%p%pef%eflx_lh_tot_u
eflx_lh_tot_r => clm3%g%l%c%p%pef%eflx_lh_tot_r
eflx_lwrad_out => clm3%g%l%c%p%pef%eflx_lwrad_out
eflx_lwrad_net => clm3%g%l%c%p%pef%eflx_lwrad_net
eflx_lwrad_net_u => clm3%g%l%c%p%pef%eflx_lwrad_net_u
eflx_lwrad_net_r => clm3%g%l%c%p%pef%eflx_lwrad_net_r
eflx_lh_vege => clm3%g%l%c%p%pef%eflx_lh_vege
eflx_lh_vegt => clm3%g%l%c%p%pef%eflx_lh_vegt
eflx_lh_grnd => clm3%g%l%c%p%pef%eflx_lh_grnd
cgrnds => clm3%g%l%c%p%pef%cgrnds
cgrndl => clm3%g%l%c%p%pef%cgrndl
eflx_sh_grnd => clm3%g%l%c%p%pef%eflx_sh_grnd
qflx_evap_soi => clm3%g%l%c%p%pwf%qflx_evap_soi
errsoi_pft => clm3%g%l%c%p%pebal%errsoi
wtcol => clm3%g%l%c%p%wtcol
eflx_wasteheat_pft => clm3%g%l%c%p%pef%eflx_wasteheat_pft
eflx_heat_from_ac_pft => clm3%g%l%c%p%pef%eflx_heat_from_ac_pft
eflx_traffic_pft => clm3%g%l%c%p%pef%eflx_traffic_pft
! Get step size
dtime = get_step_size()
! Determine soil temperatures including surface soil temperature
call SoilTemperature(lbl, ubl, lbc, ubc, num_urbanl, filter_urbanl, &
num_nolakec, filter_nolakec, xmf , fact)
do fc = 1,num_nolakec
c = filter_nolakec(fc)
j = snl(c)+1
! Calculate difference in soil temperature from last time step, for
! flux corrections
tinc(c) = t_soisno(c,j) - tssbef(c,j)
! Determine ratio of topsoil_evap_tot
egsmax(c) = (h2osoi_ice(c,j)+h2osoi_liq(c,j)) / dtime
! added to trap very small negative soil water,ice
if (egsmax(c) < 0._r8) then
egsmax(c) = 0._r8
end if
end do
! A preliminary pft loop to determine if corrections are required for
! excess evaporation from the top soil layer... Includes new logic
! to distribute the corrections between pfts on the basis of their
! evaporative demands.
! egirat holds the ratio of demand to availability if demand is
! greater than availability, or 1.0 otherwise.
! Correct fluxes to present soil temperature
do fp = 1,num_nolakep
p = filter_nolakep(fp)
c = pcolumn(p)
eflx_sh_grnd(p) = eflx_sh_grnd(p) + tinc(c)*cgrnds(p)
qflx_evap_soi(p) = qflx_evap_soi(p) + tinc(c)*cgrndl(p)
end do
! Set the column-average qflx_evap_soi as the weighted average over all pfts
! but only count the pfts that are evaporating
do fc = 1,num_nolakec
c = filter_nolakec(fc)
topsoil_evap_tot(c) = 0._r8
sumwt(c) = 0._r8
end do
do pi = 1,max_pft_per_col
do fc = 1,num_nolakec
c = filter_nolakec(fc)
if ( pi <= npfts(c) ) then
p = pfti(c) + pi - 1
if (pwtgcell(p)>0._r8) then
topsoil_evap_tot(c) = topsoil_evap_tot(c) + qflx_evap_soi(p) * wtcol(p)
end if
end if
end do
end do
! Calculate ratio for rescaling pft-level fluxes to meet availability
do fc = 1,num_nolakec
c = filter_nolakec(fc)
if (topsoil_evap_tot(c) > egsmax(c)) then
egirat(c) = (egsmax(c)/topsoil_evap_tot(c))
else
egirat(c) = 1.0_r8
end if
end do
do fp = 1,num_nolakep
p = filter_nolakep(fp)
c = pcolumn(p)
l = plandunit(p)
g = pgridcell(p)
j = snl(c)+1
! Correct soil fluxes for possible evaporation in excess of top layer water
! excess energy is added to the sensible heat flux from soil
if (egirat(c) < 1.0_r8) then
save_qflx_evap_soi = qflx_evap_soi(p)
qflx_evap_soi(p) = qflx_evap_soi(p) * egirat(c)
eflx_sh_grnd(p) = eflx_sh_grnd(p) + (save_qflx_evap_soi - qflx_evap_soi(p))*htvp(c)
end if
! Ground heat flux
if (ltype(l) /= isturb) then
eflx_soil_grnd(p) = sabg(p) + dlrad(p) &
+ (1-frac_veg_nosno(p))*emg(c)*forc_lwrad(g) &
- emg(c)*sb*tssbef(c,j)**3*(tssbef(c,j) + 4._r8*tinc(c)) &
- (eflx_sh_grnd(p) + qflx_evap_soi(p)*htvp(c))
if (ltype(l) == istsoil) then
eflx_soil_grnd_r(p) = eflx_soil_grnd(p)
end if
else
! For all urban columns we use the net longwave radiation (eflx_lwrad_net) since
! the term (emg*sb*tssbef(snl+1)**4) is not the upward longwave flux because of
! interactions between urban columns.
eflx_lwrad_del(p) = 4._r8*emg(c)*sb*tssbef(c,j)**3*tinc(c)
! Include transpiration term because needed for pervious road
! and wasteheat and traffic flux
eflx_soil_grnd(p) = sabg(p) + dlrad(p) &
- eflx_lwrad_net(p) - eflx_lwrad_del(p) &
- (eflx_sh_grnd(p) + qflx_evap_soi(p)*htvp(c) + qflx_tran_veg(p)*hvap) &
+ eflx_wasteheat_pft(p) + eflx_heat_from_ac_pft(p) + eflx_traffic_pft(p)
eflx_soil_grnd_u(p) = eflx_soil_grnd(p)
end if
! Total fluxes (vegetation + ground)
eflx_sh_tot(p) = eflx_sh_veg(p) + eflx_sh_grnd(p)
qflx_evap_tot(p) = qflx_evap_veg(p) + qflx_evap_soi(p)
eflx_lh_tot(p)= hvap*qflx_evap_veg(p) + htvp(c)*qflx_evap_soi(p)
if (ltype(l) == istsoil) then
eflx_lh_tot_r(p)= eflx_lh_tot(p)
eflx_sh_tot_r(p)= eflx_sh_tot(p)
else if (ltype(l) == isturb) then
eflx_lh_tot_u(p)= eflx_lh_tot(p)
eflx_sh_tot_u(p)= eflx_sh_tot(p)
end if
! Assign ground evaporation to sublimation from soil ice or to dew
! on snow or ground
qflx_evap_grnd(p) = 0._r8
qflx_sub_snow(p) = 0._r8
qflx_dew_snow(p) = 0._r8
qflx_dew_grnd(p) = 0._r8
if (qflx_evap_soi(p) >= 0._r8) then
! for evaporation partitioning between liquid evap and ice sublimation,
! use the ratio of liquid to (liquid+ice) in the top layer to determine split
if ((h2osoi_liq(c,j)+h2osoi_ice(c,j)) > 0.) then
qflx_evap_grnd(p) = max(qflx_evap_soi(p)*(h2osoi_liq(c,j)/(h2osoi_liq(c,j)+h2osoi_ice(c,j))), 0._r8)
else
qflx_evap_grnd(p) = 0.
end if
qflx_sub_snow(p) = qflx_evap_soi(p) - qflx_evap_grnd(p)
else
if (t_grnd(c) < tfrz) then
qflx_dew_snow(p) = abs(qflx_evap_soi(p))
else
qflx_dew_grnd(p) = abs(qflx_evap_soi(p))
end if
end if
! Update the pft-level qflx_snwcp
! This was moved in from Hydrology2 to keep all pft-level
! calculations out of Hydrology2
if (snl(c) < 0 .and. do_capsnow(c)) then
qflx_snwcp_liq(p) = qflx_snwcp_liq(p) + qflx_dew_grnd(p)
qflx_snwcp_ice(p) = qflx_snwcp_ice(p) + qflx_dew_snow(p)
end if
! Variables needed by history tape
qflx_evap_can(p) = qflx_evap_veg(p) - qflx_tran_veg(p)
eflx_lh_vege(p) = (qflx_evap_veg(p) - qflx_tran_veg(p)) * hvap
eflx_lh_vegt(p) = qflx_tran_veg(p) * hvap
eflx_lh_grnd(p) = qflx_evap_soi(p) * htvp(c)
end do
! Soil Energy balance check
do fp = 1,num_nolakep
p = filter_nolakep(fp)
c = pcolumn(p)
errsoi_pft(p) = eflx_soil_grnd(p) - xmf(c)
! For urban sunwall, shadewall, and roof columns, the "soil" energy balance check
! must include the heat flux from the interior of the building.
if (ctype(c)==icol_sunwall .or. ctype(c)==icol_shadewall .or. ctype(c)==icol_roof) then
errsoi_pft(p) = errsoi_pft(p) + eflx_building_heat(c)
end if
end do
do j = -nlevsno+1,nlevgrnd
do fp = 1,num_nolakep
p = filter_nolakep(fp)
c = pcolumn(p)
if (j >= snl(c)+1) then
errsoi_pft(p) = errsoi_pft(p) - (t_soisno(c,j)-tssbef(c,j))/fact(c,j)
end if
end do
end do
! Outgoing long-wave radiation from vegetation + ground
! For conservation we put the increase of ground longwave to outgoing
! For urban pfts, ulrad=0 and (1-fracveg_nosno)=1, and eflx_lwrad_out and eflx_lwrad_net
! are calculated in UrbanRadiation. The increase of ground longwave is added directly
! to the outgoing longwave and the net longwave.
do fp = 1,num_nolakep
p = filter_nolakep(fp)
c = pcolumn(p)
l = plandunit(p)
g = pgridcell(p)
j = snl(c)+1
if (ltype(l) /= isturb) then
eflx_lwrad_out(p) = ulrad(p) &
+ (1-frac_veg_nosno(p))*(1.-emg(c))*forc_lwrad(g) &
+ (1-frac_veg_nosno(p))*emg(c)*sb*tssbef(c,j)**4 &
+ 4.*emg(c)*sb*tssbef(c,j)**3*tinc(c)
eflx_lwrad_net(p) = eflx_lwrad_out(p) - forc_lwrad(g)
if (ltype(l) == istsoil) then
eflx_lwrad_net_r(p) = eflx_lwrad_out(p) - forc_lwrad(g)
end if
else
eflx_lwrad_out(p) = eflx_lwrad_out(p) + eflx_lwrad_del(p)
eflx_lwrad_net(p) = eflx_lwrad_net(p) + eflx_lwrad_del(p)
eflx_lwrad_net_u(p) = eflx_lwrad_net_u(p) + eflx_lwrad_del(p)
end if
end do
! lake balance for errsoi is not over pft
! therefore obtain column-level radiative temperature
call p2c(num_nolakec, filter_nolakec, errsoi_pft, errsoi_col)
end subroutine Biogeophysics2
end module Biogeophysics2Mod