| 1 |
module cv30_undilute1_m |
| 2 |
|
| 3 |
implicit none |
| 4 |
|
| 5 |
contains |
| 6 |
|
| 7 |
SUBROUTINE cv30_undilute1(t, q, qs, gz, plcl, p, nk, icb, tp, tvp, clw, icbs) |
| 8 |
|
| 9 |
! UNDILUTE (ADIABATIC) UPDRAFT / 1st part |
| 10 |
! (up through ICB for convect4, up through ICB + 1 for convect3) |
| 11 |
! Calculates the lifted parcel virtual temperature at nk, the |
| 12 |
! actual temperature, and the adiabatic liquid water content. |
| 13 |
|
| 14 |
! Equivalent de TLIFT entre NK et ICB+1 inclus |
| 15 |
|
| 16 |
! Differences with convect4: |
| 17 |
! - specify plcl in input |
| 18 |
! - icbs is the first level above LCL (may differ from icb) |
| 19 |
! - in the iterations, used x(icbs) instead x(icb) |
| 20 |
! - many minor differences in the iterations |
| 21 |
! - tvp is computed in only one time |
| 22 |
! - icbs: first level above Plcl (IMIN de TLIFT) in output |
| 23 |
! - if icbs=icb, compute also tp(icb+1), tvp(icb+1) & clw(icb+1) |
| 24 |
|
| 25 |
use cv30_param_m, only: minorig, nl |
| 26 |
use cv_thermo_m, only: cl, clmcpv, cpd, cpv, eps, lv0, rrv |
| 27 |
USE dimphy, ONLY: klev, klon |
| 28 |
|
| 29 |
! inputs: |
| 30 |
integer, intent(in):: nk(klon), icb(klon) |
| 31 |
real, intent(in):: t(klon, klev) |
| 32 |
real, intent(in):: q(klon, klev), qs(klon, klev), gz(klon, klev) |
| 33 |
real, intent(in):: p(klon, klev) |
| 34 |
real, intent(in):: plcl(klon) ! convect3 |
| 35 |
|
| 36 |
! outputs: |
| 37 |
real tp(klon, klev), tvp(klon, klev), clw(klon, klev) |
| 38 |
|
| 39 |
! local variables: |
| 40 |
integer i, k |
| 41 |
integer icb1(klon), icbs(klon), icbsmax2 ! convect3 |
| 42 |
real tg, qg, alv, s, ahg, tc, denom, es |
| 43 |
real ah0(klon), cpp(klon) |
| 44 |
real tnk(klon), qnk(klon), gznk(klon), ticb(klon), gzicb(klon) |
| 45 |
real qsicb(klon) ! convect3 |
| 46 |
real cpinv(klon) ! convect3 |
| 47 |
|
| 48 |
!------------------------------------------------------------------- |
| 49 |
|
| 50 |
! Calculates the lifted parcel virtual temperature at nk, |
| 51 |
! the actual temperature, and the adiabatic |
| 52 |
! liquid water content. The procedure is to solve the equation. |
| 53 |
! cp*tp+L*qp+phi=cp*tnk+L*qnk+gznk. |
| 54 |
|
| 55 |
do i=1, klon |
| 56 |
tnk(i)=t(i, nk(i)) |
| 57 |
qnk(i)=q(i, nk(i)) |
| 58 |
gznk(i)=gz(i, nk(i)) |
| 59 |
end do |
| 60 |
|
| 61 |
! *** Calculate certain parcel quantities, including static energy *** |
| 62 |
|
| 63 |
do i=1, klon |
| 64 |
ah0(i)=(cpd*(1.-qnk(i))+cl*qnk(i))*tnk(i) & |
| 65 |
+qnk(i)*(lv0-clmcpv*(tnk(i)-273.15))+gznk(i) |
| 66 |
cpp(i)=cpd*(1.-qnk(i))+qnk(i)*cpv |
| 67 |
cpinv(i)=1./cpp(i) |
| 68 |
end do |
| 69 |
|
| 70 |
! *** Calculate lifted parcel quantities below cloud base *** |
| 71 |
|
| 72 |
do i=1, klon !convect3 |
| 73 |
icb1(i)=MAX(icb(i), 2) !convect3 |
| 74 |
icb1(i)=MIN(icb(i), nl) !convect3 |
| 75 |
! if icb is below LCL, start loop at ICB+1: |
| 76 |
! (icbs est le premier niveau au-dessus du LCL) |
| 77 |
icbs(i)=icb1(i) !convect3 |
| 78 |
if (plcl(i) < p(i, icb1(i))) then |
| 79 |
icbs(i)=MIN(icbs(i)+1, nl) !convect3 |
| 80 |
endif |
| 81 |
enddo !convect3 |
| 82 |
|
| 83 |
do i=1, klon !convect3 |
| 84 |
ticb(i)=t(i, icbs(i)) !convect3 |
| 85 |
gzicb(i)=gz(i, icbs(i)) !convect3 |
| 86 |
qsicb(i)=qs(i, icbs(i)) !convect3 |
| 87 |
enddo !convect3 |
| 88 |
|
| 89 |
! Re-compute icbsmax (icbsmax2): !convect3 |
| 90 |
! !convect3 |
| 91 |
icbsmax2=2 !convect3 |
| 92 |
do i=1, klon !convect3 |
| 93 |
icbsmax2=max(icbsmax2, icbs(i)) !convect3 |
| 94 |
end do |
| 95 |
|
| 96 |
! initialization outputs: |
| 97 |
|
| 98 |
do k=1, icbsmax2 ! convect3 |
| 99 |
do i=1, klon ! convect3 |
| 100 |
tp(i, k) = 0.0 ! convect3 |
| 101 |
tvp(i, k) = 0.0 ! convect3 |
| 102 |
clw(i, k) = 0.0 ! convect3 |
| 103 |
enddo ! convect3 |
| 104 |
enddo ! convect3 |
| 105 |
|
| 106 |
! tp and tvp below cloud base: |
| 107 |
|
| 108 |
do k=minorig, icbsmax2-1 |
| 109 |
do i=1, klon |
| 110 |
tp(i, k)=tnk(i)-(gz(i, k)-gznk(i))*cpinv(i) |
| 111 |
tvp(i, k)=tp(i, k)*(1.+qnk(i)/eps-qnk(i)) !whole thing (convect3) |
| 112 |
end do |
| 113 |
end do |
| 114 |
|
| 115 |
! *** Find lifted parcel quantities above cloud base *** |
| 116 |
|
| 117 |
do i=1, klon |
| 118 |
tg=ticb(i) |
| 119 |
qg=qsicb(i) ! convect3 |
| 120 |
!debug alv=lv0-clmcpv*(ticb(i)-t0) |
| 121 |
alv=lv0-clmcpv*(ticb(i)-273.15) |
| 122 |
|
| 123 |
! First iteration. |
| 124 |
|
| 125 |
s=cpd*(1.-qnk(i))+cl*qnk(i) & |
| 126 |
+alv*alv*qg/(rrv*ticb(i)*ticb(i)) ! convect3 |
| 127 |
s=1./s |
| 128 |
|
| 129 |
ahg=cpd*tg+(cl-cpd)*qnk(i)*tg+alv*qg+gzicb(i) ! convect3 |
| 130 |
tg=tg+s*(ah0(i)-ahg) |
| 131 |
|
| 132 |
!debug tc=tg-t0 |
| 133 |
tc=tg-273.15 |
| 134 |
denom=243.5+tc |
| 135 |
denom=MAX(denom, 1.0) ! convect3 |
| 136 |
|
| 137 |
es=6.112*exp(17.67*tc/denom) |
| 138 |
qg=eps*es/(p(i, icbs(i))-es*(1.-eps)) |
| 139 |
|
| 140 |
! Second iteration. |
| 141 |
|
| 142 |
ahg=cpd*tg+(cl-cpd)*qnk(i)*tg+alv*qg+gzicb(i) ! convect3 |
| 143 |
tg=tg+s*(ah0(i)-ahg) |
| 144 |
|
| 145 |
!debug tc=tg-t0 |
| 146 |
tc=tg-273.15 |
| 147 |
denom=243.5+tc |
| 148 |
denom=MAX(denom, 1.0) ! convect3 |
| 149 |
|
| 150 |
es=6.112*exp(17.67*tc/denom) |
| 151 |
|
| 152 |
qg=eps*es/(p(i, icbs(i))-es*(1.-eps)) |
| 153 |
|
| 154 |
alv=lv0-clmcpv*(ticb(i)-273.15) |
| 155 |
|
| 156 |
! convect3: no approximation: |
| 157 |
tp(i, icbs(i))=(ah0(i)-gz(i, icbs(i))-alv*qg) & |
| 158 |
/(cpd+(cl-cpd)*qnk(i)) |
| 159 |
|
| 160 |
clw(i, icbs(i))=qnk(i)-qg |
| 161 |
clw(i, icbs(i))=max(0.0, clw(i, icbs(i))) |
| 162 |
|
| 163 |
! convect3: (qg utilise au lieu du vrai mixing ratio rg) |
| 164 |
tvp(i, icbs(i))=tp(i, icbs(i))*(1.+qg/eps-qnk(i)) !whole thing |
| 165 |
|
| 166 |
end do |
| 167 |
|
| 168 |
! The following is only for convect3: |
| 169 |
|
| 170 |
! * icbs is the first level above the LCL: |
| 171 |
! if plcl<p(icb), then icbs=icb+1 |
| 172 |
! if plcl>p(icb), then icbs=icb |
| 173 |
|
| 174 |
! * the routine above computes tvp from minorig to icbs (included). |
| 175 |
|
| 176 |
! * to compute buoybase (in cv30_trigger.F), both tvp(icb) and tvp(icb+1) |
| 177 |
! must be known. This is the case if icbs=icb+1, but not if icbs=icb. |
| 178 |
|
| 179 |
! * therefore, in the case icbs=icb, we compute tvp at level icb+1 |
| 180 |
! (tvp at other levels will be computed in cv30_undilute2.F) |
| 181 |
|
| 182 |
do i=1, klon |
| 183 |
ticb(i)=t(i, icb(i)+1) |
| 184 |
gzicb(i)=gz(i, icb(i)+1) |
| 185 |
qsicb(i)=qs(i, icb(i)+1) |
| 186 |
enddo |
| 187 |
|
| 188 |
do i=1, klon |
| 189 |
tg=ticb(i) |
| 190 |
qg=qsicb(i) ! convect3 |
| 191 |
!debug alv=lv0-clmcpv*(ticb(i)-t0) |
| 192 |
alv=lv0-clmcpv*(ticb(i)-273.15) |
| 193 |
|
| 194 |
! First iteration. |
| 195 |
|
| 196 |
s=cpd*(1.-qnk(i))+cl*qnk(i) & |
| 197 |
+alv*alv*qg/(rrv*ticb(i)*ticb(i)) ! convect3 |
| 198 |
s=1./s |
| 199 |
|
| 200 |
ahg=cpd*tg+(cl-cpd)*qnk(i)*tg+alv*qg+gzicb(i) ! convect3 |
| 201 |
tg=tg+s*(ah0(i)-ahg) |
| 202 |
|
| 203 |
!debug tc=tg-t0 |
| 204 |
tc=tg-273.15 |
| 205 |
denom=243.5+tc |
| 206 |
denom=MAX(denom, 1.0) ! convect3 |
| 207 |
|
| 208 |
es=6.112*exp(17.67*tc/denom) |
| 209 |
|
| 210 |
qg=eps*es/(p(i, icb(i)+1)-es*(1.-eps)) |
| 211 |
|
| 212 |
! Second iteration. |
| 213 |
|
| 214 |
ahg=cpd*tg+(cl-cpd)*qnk(i)*tg+alv*qg+gzicb(i) ! convect3 |
| 215 |
tg=tg+s*(ah0(i)-ahg) |
| 216 |
|
| 217 |
!debug tc=tg-t0 |
| 218 |
tc=tg-273.15 |
| 219 |
denom=243.5+tc |
| 220 |
denom=MAX(denom, 1.0) ! convect3 |
| 221 |
|
| 222 |
es=6.112*exp(17.67*tc/denom) |
| 223 |
|
| 224 |
qg=eps*es/(p(i, icb(i)+1)-es*(1.-eps)) |
| 225 |
|
| 226 |
alv=lv0-clmcpv*(ticb(i)-273.15) |
| 227 |
|
| 228 |
! convect3: no approximation: |
| 229 |
tp(i, icb(i)+1)=(ah0(i)-gz(i, icb(i)+1)-alv*qg) & |
| 230 |
/(cpd+(cl-cpd)*qnk(i)) |
| 231 |
|
| 232 |
clw(i, icb(i)+1)=qnk(i)-qg |
| 233 |
clw(i, icb(i)+1)=max(0.0, clw(i, icb(i)+1)) |
| 234 |
|
| 235 |
! convect3: (qg utilise au lieu du vrai mixing ratio rg) |
| 236 |
tvp(i, icb(i)+1)=tp(i, icb(i)+1)*(1.+qg/eps-qnk(i)) !whole thing |
| 237 |
end do |
| 238 |
|
| 239 |
end SUBROUTINE cv30_undilute1 |
| 240 |
|
| 241 |
end module cv30_undilute1_m |
Parent Directory
| 
Revision Log