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fix units of evaporation for imp_scheme==2 in slucm #2227

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Merged
weiwangncar merged 1 commit into from
May 30, 2025
Merged

fix units of evaporation for imp_scheme==2 in slucm #2227

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8 changes: 5 additions & 3 deletions phys/module_sf_urban.F
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Original file line number Diff line number Diff line change
Expand Up @@ -1032,7 +1032,8 @@ SUBROUTINE urban(LSOLAR, & ! L
IF (IMP_SCHEME==2) then
IF (FLXHUMRP <= 0.) FLXHUMRP = 0.
! Compute water retention depth from previous time step
DrelR = DrelRP+(RAIN1-FLXHUMRP)*DELT/porimp(IMPR)
! Convert kinematic water flux to evaporation in m/s: multiply flux by rho_air/who_water in SI units
DrelR = DrelRP+(RAIN1-FLXHUMRP*RHOO/1000.)*DELT/porimp(IMPR)
IF (RAIN > 0. .AND. DrelR < DrelRP) DrelR = DrelRP

IF (DrelR <= 0.) then
Expand Down Expand Up @@ -1284,9 +1285,10 @@ SUBROUTINE urban(LSOLAR, & ! L
IF (FLXHUMBP <= 0.) FLXHUMBP = 0.
IF (FLXHUMGP <= 0.) FLXHUMGP = 0.
! Compute water retention from previous time step for wall and ground
DrelB = DrelBP+(RAIN1-FLXHUMBP)*DELT/porimp(IMPB)
! Convert kinematic water flux to evaporation in m/s: multiply flux by rho_air/who_water in SI units
DrelB = DrelBP+(RAIN1-FLXHUMBP*RHOO/1000.)*DELT/porimp(IMPB)
IF (RAIN > 0. .AND. DrelB < DrelBP) DrelB = DrelBP
DrelG = DrelGP+(RAIN1-FLXHUMGP)*DELT/porimp(IMPG)
DrelG = DrelGP+(RAIN1-FLXHUMGP*RHOO/1000.)*DELT/porimp(IMPG)
IF (RAIN > 0. .AND. DrelG < DrelGP) DrelG = DrelGP

IF (DrelB <= 0.) then
Expand Down