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guez |
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SUBROUTINE cv_undilute2(nloc,ncum,nd,icb,nk & |
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,tnk,qnk,gznk,t,q,qs,gz & |
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,p,dph,h,tv,lv & |
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,inb,inb1,tp,tvp,clw,hp,ep,sigp,frac) |
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use cvthermo |
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use cvparam |
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implicit none |
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!--------------------------------------------------------------------- |
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! Purpose: |
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! FIND THE REST OF THE LIFTED PARCEL TEMPERATURES |
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! & |
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! COMPUTE THE PRECIPITATION EFFICIENCIES AND THE |
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! FRACTION OF PRECIPITATION FALLING OUTSIDE OF CLOUD |
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! & |
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! FIND THE LEVEL OF NEUTRAL BUOYANCY |
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!--------------------------------------------------------------------- |
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! inputs: |
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integer ncum, nd, nloc |
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integer icb(nloc), nk(nloc) |
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real t(nloc,nd), q(nloc,nd), qs(nloc,nd), gz(nloc,nd) |
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real p(nloc,nd), dph(nloc,nd) |
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real tnk(nloc), qnk(nloc), gznk(nloc) |
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real lv(nloc,nd), tv(nloc,nd), h(nloc,nd) |
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! outputs: |
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integer inb(nloc), inb1(nloc) |
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real tp(nloc,nd), tvp(nloc,nd), clw(nloc,nd) |
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real ep(nloc,nd), sigp(nloc,nd), hp(nloc,nd) |
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real frac(nloc) |
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! local variables: |
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integer i, k |
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real tg,qg,ahg,alv,s,tc,es,denom,rg,tca,elacrit |
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real by, defrac |
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real ah0(nloc), cape(nloc), capem(nloc), byp(nloc) |
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logical lcape(nloc) |
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!===================================================================== |
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! --- SOME INITIALIZATIONS |
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!===================================================================== |
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do 170 k=1,nl |
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do 160 i=1,ncum |
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ep(i,k)=0.0 |
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sigp(i,k)=sigs |
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160 continue |
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170 continue |
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!===================================================================== |
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! --- FIND THE REST OF THE LIFTED PARCEL TEMPERATURES |
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!===================================================================== |
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! |
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! --- The procedure is to solve the equation. |
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! cp*tp+L*qp+phi=cp*tnk+L*qnk+gznk. |
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! |
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! *** Calculate certain parcel quantities, including static energy *** |
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! |
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! |
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do 240 i=1,ncum |
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ah0(i)=(cpd*(1.-qnk(i))+cl*qnk(i))*tnk(i) & |
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+qnk(i)*(lv0-clmcpv*(tnk(i)-t0))+gznk(i) |
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240 continue |
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! |
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! |
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! *** Find lifted parcel quantities above cloud base *** |
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! |
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! |
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do 300 k=minorig+1,nl |
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do 290 i=1,ncum |
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if(k.ge.(icb(i)+1))then |
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tg=t(i,k) |
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qg=qs(i,k) |
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alv=lv0-clmcpv*(t(i,k)-t0) |
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! |
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! First iteration. |
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! |
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s=cpd+alv*alv*qg/(rrv*t(i,k)*t(i,k)) |
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s=1./s |
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ahg=cpd*tg+(cl-cpd)*qnk(i)*t(i,k)+alv*qg+gz(i,k) |
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tg=tg+s*(ah0(i)-ahg) |
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tg=max(tg,35.0) |
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tc=tg-t0 |
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denom=243.5+tc |
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if(tc.ge.0.0)then |
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es=6.112*exp(17.67*tc/denom) |
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else |
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es=exp(23.33086-6111.72784/tg+0.15215*log(tg)) |
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endif |
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qg=eps*es/(p(i,k)-es*(1.-eps)) |
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! |
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! Second iteration. |
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! |
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s=cpd+alv*alv*qg/(rrv*t(i,k)*t(i,k)) |
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s=1./s |
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ahg=cpd*tg+(cl-cpd)*qnk(i)*t(i,k)+alv*qg+gz(i,k) |
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tg=tg+s*(ah0(i)-ahg) |
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tg=max(tg,35.0) |
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tc=tg-t0 |
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denom=243.5+tc |
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if(tc.ge.0.0)then |
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es=6.112*exp(17.67*tc/denom) |
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else |
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es=exp(23.33086-6111.72784/tg+0.15215*log(tg)) |
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endif |
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qg=eps*es/(p(i,k)-es*(1.-eps)) |
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! |
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alv=lv0-clmcpv*(t(i,k)-t0) |
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! print*,'cpd dans convect2 ',cpd |
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! print*,'tp(i,k),ah0(i),cl,cpd,qnk(i),t(i,k),gz(i,k),alv,qg,cpd' |
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! print*,tp(i,k),ah0(i),cl,cpd,qnk(i),t(i,k),gz(i,k),alv,qg,cpd |
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tp(i,k)=(ah0(i)-(cl-cpd)*qnk(i)*t(i,k)-gz(i,k)-alv*qg)/cpd |
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! if (.not.cpd.gt.1000.) then |
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! print*,'CPD=',cpd |
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! stop |
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! endif |
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clw(i,k)=qnk(i)-qg |
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clw(i,k)=max(0.0,clw(i,k)) |
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rg=qg/(1.-qnk(i)) |
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tvp(i,k)=tp(i,k)*(1.+rg*epsi) |
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endif |
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290 continue |
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300 continue |
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! |
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!===================================================================== |
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! --- SET THE PRECIPITATION EFFICIENCIES AND THE FRACTION OF |
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! --- PRECIPITATION FALLING OUTSIDE OF CLOUD |
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! --- THESE MAY BE FUNCTIONS OF TP(I), P(I) AND CLW(I) |
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!===================================================================== |
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! |
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do 320 k=minorig+1,nl |
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do 310 i=1,ncum |
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if(k.ge.(nk(i)+1))then |
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tca=tp(i,k)-t0 |
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if(tca.ge.0.0)then |
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elacrit=elcrit |
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else |
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elacrit=elcrit*(1.0-tca/tlcrit) |
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endif |
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elacrit=max(elacrit,0.0) |
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ep(i,k)=1.0-elacrit/max(clw(i,k),1.0e-8) |
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ep(i,k)=max(ep(i,k),0.0 ) |
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ep(i,k)=min(ep(i,k),1.0 ) |
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sigp(i,k)=sigs |
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endif |
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310 continue |
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320 continue |
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! |
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!===================================================================== |
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! --- CALCULATE VIRTUAL TEMPERATURE AND LIFTED PARCEL |
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! --- VIRTUAL TEMPERATURE |
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!===================================================================== |
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! |
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do 340 k=minorig+1,nl |
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do 330 i=1,ncum |
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if(k.ge.(icb(i)+1))then |
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tvp(i,k)=tvp(i,k)*(1.0-qnk(i)+ep(i,k)*clw(i,k)) |
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! print*,'i,k,tvp(i,k),qnk(i),ep(i,k),clw(i,k)' |
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! print*, i,k,tvp(i,k),qnk(i),ep(i,k),clw(i,k) |
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endif |
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330 continue |
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340 continue |
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do 350 i=1,ncum |
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tvp(i,nlp)=tvp(i,nl)-(gz(i,nlp)-gz(i,nl))/cpd |
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350 continue |
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! |
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!===================================================================== |
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! --- FIND THE FIRST MODEL LEVEL (INB1) ABOVE THE PARCEL'S |
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! --- HIGHEST LEVEL OF NEUTRAL BUOYANCY |
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! --- AND THE HIGHEST LEVEL OF POSITIVE CAPE (INB) |
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!===================================================================== |
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! |
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do 510 i=1,ncum |
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cape(i)=0.0 |
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capem(i)=0.0 |
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inb(i)=icb(i)+1 |
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inb1(i)=inb(i) |
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510 continue |
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! |
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! Originial Code |
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! |
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! do 530 k=minorig+1,nl-1 |
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! do 520 i=1,ncum |
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! if(k.ge.(icb(i)+1))then |
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! by=(tvp(i,k)-tv(i,k))*dph(i,k)/p(i,k) |
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! byp=(tvp(i,k+1)-tv(i,k+1))*dph(i,k+1)/p(i,k+1) |
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! cape(i)=cape(i)+by |
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! if(by.ge.0.0)inb1(i)=k+1 |
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! if(cape(i).gt.0.0)then |
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! inb(i)=k+1 |
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! capem(i)=cape(i) |
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! endif |
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! endif |
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!520 continue |
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!530 continue |
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! do 540 i=1,ncum |
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! byp=(tvp(i,nl)-tv(i,nl))*dph(i,nl)/p(i,nl) |
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! cape(i)=capem(i)+byp |
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! defrac=capem(i)-cape(i) |
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! defrac=max(defrac,0.001) |
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! frac(i)=-cape(i)/defrac |
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! frac(i)=min(frac(i),1.0) |
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! frac(i)=max(frac(i),0.0) |
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!540 continue |
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! |
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! K Emanuel fix |
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! |
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! call zilch(byp,ncum) |
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! do 530 k=minorig+1,nl-1 |
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! do 520 i=1,ncum |
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! if(k.ge.(icb(i)+1))then |
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! by=(tvp(i,k)-tv(i,k))*dph(i,k)/p(i,k) |
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! cape(i)=cape(i)+by |
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! if(by.ge.0.0)inb1(i)=k+1 |
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! if(cape(i).gt.0.0)then |
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! inb(i)=k+1 |
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! capem(i)=cape(i) |
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! byp(i)=(tvp(i,k+1)-tv(i,k+1))*dph(i,k+1)/p(i,k+1) |
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! endif |
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! endif |
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!520 continue |
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!530 continue |
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! do 540 i=1,ncum |
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! inb(i)=max(inb(i),inb1(i)) |
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! cape(i)=capem(i)+byp(i) |
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! defrac=capem(i)-cape(i) |
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! defrac=max(defrac,0.001) |
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! frac(i)=-cape(i)/defrac |
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! frac(i)=min(frac(i),1.0) |
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! frac(i)=max(frac(i),0.0) |
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!540 continue |
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! |
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! J Teixeira fix |
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! |
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call zilch(byp,ncum) |
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do 515 i=1,ncum |
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lcape(i)=.true. |
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515 continue |
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do 530 k=minorig+1,nl-1 |
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do 520 i=1,ncum |
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if(cape(i).lt.0.0)lcape(i)=.false. |
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if((k.ge.(icb(i)+1)).and.lcape(i))then |
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by=(tvp(i,k)-tv(i,k))*dph(i,k)/p(i,k) |
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byp(i)=(tvp(i,k+1)-tv(i,k+1))*dph(i,k+1)/p(i,k+1) |
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cape(i)=cape(i)+by |
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if(by.ge.0.0)inb1(i)=k+1 |
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if(cape(i).gt.0.0)then |
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inb(i)=k+1 |
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capem(i)=cape(i) |
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endif |
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endif |
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520 continue |
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530 continue |
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do 540 i=1,ncum |
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cape(i)=capem(i)+byp(i) |
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defrac=capem(i)-cape(i) |
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defrac=max(defrac,0.001) |
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frac(i)=-cape(i)/defrac |
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frac(i)=min(frac(i),1.0) |
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frac(i)=max(frac(i),0.0) |
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540 continue |
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! |
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!===================================================================== |
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! --- CALCULATE LIQUID WATER STATIC ENERGY OF LIFTED PARCEL |
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!===================================================================== |
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! |
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! initialization: |
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do i=1,ncum*nlp |
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hp(i,1)=h(i,1) |
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enddo |
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do 600 k=minorig+1,nl |
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do 590 i=1,ncum |
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if((k.ge.icb(i)).and.(k.le.inb(i)))then |
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hp(i,k)=h(i,nk(i))+(lv(i,k)+(cpd-cpv)*t(i,k))*ep(i,k)*clw(i,k) |
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endif |
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590 continue |
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600 continue |
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! |
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return |
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end |
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