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Merge pull request NCAR#91 from hu5970/RRFS_dev
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RRFS_dev: fix problems in reflectivity diagnosis for Thompson scheme.
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@SamuelTrahanNOAA
SamuelTrahanNOAA authored May 21, 2021
2 parents a5ad176 + 7135b5d commit 2252927
Showing 1 changed file with 73 additions and 12 deletions.
85 changes: 73 additions & 12 deletions physics/module_mp_thompson.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -2048,11 +2048,27 @@ subroutine mp_thompson (qv1d, qc1d, qi1d, qr1d, qs1d, qg1d, ni1d, &
!+---+-----------------------------------------------------------------+
!> - Calculate y-intercept, slope values for graupel.
!+---+-----------------------------------------------------------------+
! Ming Hu: go back to old version for Spring experiment 2021
N0_min = gonv_max
k_0 = kts
do k = kte, kts, -1
if (temp(k).ge.270.65) k_0 = MAX(k_0, k)
enddo
do k = kte, kts, -1
ygra1 = alog10(max(1.E-9, rg(k)))
zans1 = 3.0 + 2./7.*(ygra1+8.) + rand1
if (k.gt.k_0 .and. L_qr(k) .and. mvd_r(k).gt.100.E-6) then
xslw1 = 4.01 + alog10(mvd_r(k))
else
xslw1 = 0.01
endif
ygra1 = 4.31 + alog10(max(5.E-5, rg(k)))
zans1 = (3.1 +(100./(300.*xslw1*ygra1/(10./xslw1+1.+0.25*ygra1)+30.+10.*ygra1))) + rand1
if (rand1 .ne. 0.0) then
zans1 = MAX(2., MIN(zans1, 7.))
endif
N0_exp = 10.**(zans1)
N0_exp = MAX(DBLE(gonv_min), MIN(N0_exp, DBLE(gonv_max)))
N0_min = MIN(N0_exp, N0_min)
N0_exp = N0_min
lam_exp = (N0_exp*am_g*cgg(1)/rg(k))**oge1
lamg = lam_exp * (cgg(3)*ogg2*ogg1)**obmg
ilamg(k) = 1./lamg
Expand Down Expand Up @@ -3124,11 +3140,28 @@ subroutine mp_thompson (qv1d, qc1d, qi1d, qr1d, qs1d, qg1d, ni1d, &
!+---+-----------------------------------------------------------------+
!> - Calculate y-intercept, slope values for graupel.
!+---+-----------------------------------------------------------------+
! Ming Hu: go back to old version for Spring experiment 2021

N0_min = gonv_max
k_0 = kts
do k = kte, kts, -1
ygra1 = alog10(max(1.E-9, rg(k)))
zans1 = 3.0 + 2./7.*(ygra1+8.) + rand1
if (temp(k).ge.270.65) k_0 = MAX(k_0, k)
enddo
do k = kte, kts, -1
if (k.gt.k_0 .and. L_qr(k) .and. mvd_r(k).gt.100.E-6) then
xslw1 = 4.01 + alog10(mvd_r(k))
else
xslw1 = 0.01
endif
ygra1 = 4.31 + alog10(max(5.E-5, rg(k)))
zans1 = (3.1 +(100./(300.*xslw1*ygra1/(10./xslw1+1.+0.25*ygra1)+30.+10.*ygra1))) + rand1
if (rand1 .ne. 0.0) then
zans1 = MAX(2., MIN(zans1, 7.))
endif
N0_exp = 10.**(zans1)
N0_exp = MAX(DBLE(gonv_min), MIN(N0_exp, DBLE(gonv_max)))
N0_min = MIN(N0_exp, N0_min)
N0_exp = N0_min
lam_exp = (N0_exp*am_g*cgg(1)/rg(k))**oge1
lamg = lam_exp * (cgg(3)*ogg2*ogg1)**obmg
ilamg(k) = 1./lamg
Expand Down Expand Up @@ -3483,10 +3516,14 @@ subroutine mp_thompson (qv1d, qc1d, qi1d, qr1d, qs1d, qg1d, ni1d, &
t4_vts = Kap1*Mrat**mu_s*csg(7)*ils2**cse(7)
vts = rhof(k)*av_s * (t1_vts+t2_vts)/(t3_vts+t4_vts)
if (temp(k).gt. (T_0+0.1)) then
! vtsk(k) = MAX(vts*vts_boost(k), &
! & vts*((vtrk(k)-vts*vts_boost(k))/(temp(k)-T_0)))
SR = rs(k)/(rs(k)+rr(k))
vtsk(k) = vts*SR + (1.-SR)*vtrk(k)
!Ming Hu: go back to old version for Spring experiment 2021
vtsk(k) = MAX(vts*vts_boost(k), &
& vts*((vtrk(k)-vts*vts_boost(k))/(temp(k)-T_0))) !
! DH* The version below is supposed to be a better formulation,
! but gave worse results in RAPv5/HRRRv4 than the line above.
! this formulation for RAPv5/HRRRv4, reverted 20 Feb 2020
! SR = rs(k)/(rs(k)+rr(k))
! vtsk(k) = vts*SR + (1.-SR)*vtrk(k)
else
vtsk(k) = vts*vts_boost(k)
endif
Expand Down Expand Up @@ -5295,7 +5332,7 @@ end subroutine calc_effectRad
!! of frozen species remaining from what initially existed at the
!! melting level interface.
subroutine calc_refl10cm (qv1d, qc1d, qr1d, nr1d, qs1d, qg1d, &
t1d, p1d, dBZ, rand1, kts, kte, ii, jj, melti, &
t1d, p1d, dBZ, rand1, kts, kte, ii, jj, melti_org, &
vt_dBZ, first_time_step)

IMPLICIT NONE
Expand Down Expand Up @@ -5330,7 +5367,8 @@ subroutine calc_refl10cm (qv1d, qc1d, qr1d, nr1d, qs1d, qg1d, &
DOUBLE PRECISION:: fmelt_s, fmelt_g

INTEGER:: i, k, k_0, kbot, n
LOGICAL, INTENT(IN):: melti
LOGICAL, INTENT(IN):: melti_org
LOGICAL :: melti
LOGICAL, DIMENSION(kts:kte):: L_qr, L_qs, L_qg

DOUBLE PRECISION:: cback, x, eta, f_d
Expand All @@ -5352,6 +5390,11 @@ subroutine calc_refl10cm (qv1d, qc1d, qr1d, nr1d, qs1d, qg1d, &
allow_wet_graupel = .true.
endif

!Ming Hu hardwired for Spring Experiment testing
allow_wet_snow = .true.
allow_wet_graupel = .false.
melti=.true.

do k = kts, kte
dBZ(k) = -35.0
enddo
Expand Down Expand Up @@ -5463,16 +5506,34 @@ subroutine calc_refl10cm (qv1d, qc1d, qr1d, nr1d, qs1d, qg1d, &
!+---+-----------------------------------------------------------------+

if (ANY(L_qg .eqv. .true.)) then
! Ming Hu: go back to old version for Spring experiment 2021

N0_min = gonv_max
k_0 = kts
do k = kte, kts, -1
ygra1 = alog10(max(1.E-9, rg(k)))
zans1 = 3.0 + 2./7.*(ygra1+8.) + rand1
if (temp(k).ge.270.65) k_0 = MAX(k_0, k)
enddo
do k = kte, kts, -1
if (k.gt.k_0 .and. L_qr(k) .and. mvd_r(k).gt.100.E-6) then
xslw1 = 4.01 + alog10(mvd_r(k))
else
xslw1 = 0.01
endif
ygra1 = 4.31 + alog10(max(5.E-5, rg(k)))
zans1 = (3.1 +(100./(300.*xslw1*ygra1/(10./xslw1+1.+0.25*ygra1)+30.+10.*ygra1))) + rand1
if (rand1 .ne. 0.0) then
zans1 = MAX(2., MIN(zans1, 7.))
endif
N0_exp = 10.**(zans1)
N0_exp = MAX(DBLE(gonv_min), MIN(N0_exp, DBLE(gonv_max)))
N0_min = MIN(N0_exp, N0_min)
N0_exp = N0_min
lam_exp = (N0_exp*am_g*cgg(1)/rg(k))**oge1
lamg = lam_exp * (cgg(3)*ogg2*ogg1)**obmg
ilamg(k) = 1./lamg
N0_g(k) = N0_exp/(cgg(2)*lam_exp) * lamg**cge(2)
enddo

endif

!+---+-----------------------------------------------------------------+
Expand Down

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