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convec.F
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#if defined(ROW_LAND)
#define SEA_P .true.
#define SEA_U .true.
#define SEA_V .true.
#elif defined(ROW_ALLSEA)
#define SEA_P allip(j).or.ip(i,j).ne.0
#define SEA_U alliu(j).or.iu(i,j).ne.0
#define SEA_V alliv(j).or.iv(i,j).ne.0
#else
#define SEA_P ip(i,j).ne.0
#define SEA_U iu(i,j).ne.0
#define SEA_V iv(i,j).ne.0
#endif
subroutine convch(m,n)
use mod_xc ! HYCOM communication interface
use mod_cb_arrays ! HYCOM saved arrays
c
c --- hycom version 1.0
implicit none
c
integer m,n
c
cdiag real sigup,uup,vup,siglo,ulo,vlo,coluin(idm),colout(idm)
real q,tem,sal,thet,trc(mxtrcr)
real dthet,plev,alfadt,betads
integer i,iter,j,k,k1,ks,kp,ktr,margin
logical llayer
c
integer, parameter :: itmax=5
c
include 'stmt_fns.h'
c
c --- ---------------------
c --- convective adjustment
c --- ---------------------
c
103 format (i9,2i5,a/(33x,i3,2f8.3,f8.3,f8.2,f8.1))
cdiag if (itest.gt.0 .and. jtest.gt.0) then
cdiag write (lp,103) nstep,itest+i0,jtest+i0,
cdiag& ' entering convec: temp saln dens thkns dpth',
cdiag& (k,temp(itest,jtest,k,n),saln(itest,jtest,k,n),
cdiag& th3d(itest,jtest,k,n)+thbase,dp(itest,jtest,k,n)*qonem,
cdiag& p(itest,jtest,k+1)*qonem,k=1,kk)
cdiag endif
c
call xctilr(th3d(1-nbdy,1-nbdy,1,n),1,kk, 1,1, halo_ps)
c
c --- set thstar, note there is no thermobaric correction
c
margin = 1
c
!$OMP PARALLEL DO PRIVATE(j,k,i,q)
!$OMP& SCHEDULE(STATIC,jblk)
do j=1-margin,jj+margin
do k=2,kk
k1=k-1
do i=1-margin,ii+margin
if (SEA_P) then
p(i,j,k)=p(i,j,k-1)+dp(i,j,k,n)
if (.not.mxlkta .and. p(i,j,k).lt.dpmixl(i,j,n)) then
nmlb(i,j,n)=k
endif
if (locsig) then
p(i,j,k)=p(i,j,k-1)+dp(i,j,k,n)
if (k.eq.2) then
thstar(i,j,k,1)=th3d(i,j,k1,n)
else
if (k1.gt.nmlb(i,j,n)) then
alfadt=dsiglocdt(ahalf*(temp(i,j,k1,n)+
& temp(i,j,k ,n) ),
& ahalf*(saln(i,j,k1,n)+
& saln(i,j,k ,n) ),p(i,j,k))*
& (temp(i,j,k1,n)-
& temp(i,j,k, n) )
betads=dsiglocds(ahalf*(temp(i,j,k1,n)+
& temp(i,j,k ,n) ),
& ahalf*(saln(i,j,k1,n)+
& saln(i,j,k ,n) ),p(i,j,k))*
& (saln(i,j,k1,n)-
& saln(i,j,k, n) )
thstar(i,j,k,1)=thstar(i,j,k1,1)-alfadt-betads
else
thstar(i,j,k,1)=thstar(i,j,k1,1)
endif
endif
else
thstar(i,j,k,1)=th3d(i,j,k,n)
endif
endif !ip
enddo !i
enddo !k
enddo !j
!$OMP END PARALLEL DO
c
c --- convective adjustment
c
!$OMP PARALLEL DO PRIVATE(j,k,i,q)
!$OMP& SCHEDULE(STATIC,jblk)
do j=1,jj
c
c --- convection of u
c
do k=2,kk
do i=1,ii
if (SEA_U) then
pu(i,j,k+1)=pu(i,j,k)+dpu(i,j,k,n)
if (pu(i,j,k+1).lt.depthu(i,j)-onemm .and.
& thstar(i,j,k ,1)+thstar(i-1,j,k ,1).lt.
& thstar(i,j,k-1,1)+thstar(i-1,j,k-1,1) ) then
cdiag if (i.eq.itest .and. j.eq.jtest) then
cdiag uup=u(i,j,k-1,n)
cdiag ulo=u(i,j,k, n)
cdiag endif
q=1.0-max(dpu(i,j,k,n),0.)/
& (max(dpu(i,j,k,n),0.)+max(dpu(i,j,k-1,n),onemm))
u(i,j,k, n)=u(i,j,k,n)+q*(u(i,j,k-1,n)-u(i,j,k,n))
u(i,j,k-1,n)=u(i,j,k,n)
cdiag if (i.eq.itest .and. j.eq.jtest) then
cdiag write (lp,100) nstep,i+i0,j+j0,k,
cdiag& 1,' upr,lwr,final u:',uup,ulo,u(i,j,k,n),q
cdiag endif
end if
endif !ip
enddo !i
enddo !k
c
c --- convection of v
c
do k=2,kk
do i=1,ii
if (SEA_V) then
pv(i,j,k+1)=pv(i,j,k)+dpv(i,j,k,n)
if (pv(i,j,k+1).lt.depthv(i,j)-onemm .and.
& thstar(i,j,k ,1)+thstar(i,j-1,k ,1).lt.
& thstar(i,j,k-1,1)+thstar(i,j-1,k-1,1) ) then
cdiag vup=v(i,j,k-1,n)
cdiag vlo=v(i,j,k, n)
q=1.0-max(dpv(i,j,k,n),0.)/
& (max(dpv(i,j,k,n),0.)+max(dpv(i,j,k-1,n),onemm))
v(i,j,k, n)=v(i,j,k,n)+q*(v(i,j,k-1,n)-v(i,j,k,n))
v(i,j,k-1,n)=v(i,j,k,n)
cdiag if (i.eq.itest .and. j.eq.jtest) then
cdiag write (lp,100) nstep,i+i0,j+i0,k,
cdiag& 1,' upr,lwr,final v:',vup,vlo,v(i,j,k,n),q
cdiag endif
end if
endif !ip
enddo !i
enddo !k
enddo !j
!$OMP END PARALLEL DO
c
c --- convection of thermodynamical variables and tracer
c
!$OMP PARALLEL DO PRIVATE(j,i,k,ktr,iter,ks,kp,
!$OMP& q,tem,sal,thet,trc)
!$OMP& SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_P) then
c
ccc coluin(i)=0.
ccc colout(i)=0.
c
do 12 k=1,kk
ccc coluin(i)=coluin(i)+temp(i,j,k,n)*dp(i,j,k,n)
p(i,j,k+1)=p(i,j,k)+dp(i,j,k,n)
12 continue
c
do 6 iter=1,itmax
c
klist(i,j)=1
util1(i,j)=dp(i,j,1,n)
c
do 6 k=2,kk
k1=k-1
c
ks=klist(i,j)
if (locsig) then
plev=0.5*(p(i,j,ks+1)+p(i,j,k))
alfadt=0.5*
& (dsiglocdt(temp(i,j,ks,n),saln(i,j,ks,n),plev)+
& dsiglocdt(temp(i,j,k ,n),saln(i,j,k ,n),plev))*
& (temp(i,j,ks,n)-temp(i,j,k,n))
betads=0.5*
& (dsiglocds(temp(i,j,ks,n),saln(i,j,ks,n),plev)+
& dsiglocds(temp(i,j,k ,n),saln(i,j,k ,n),plev))*
& (saln(i,j,ks,n)-saln(i,j,k,n))
dthet=alfadt+betads
else
dthet=th3d(i,j,ks,n)-th3d(i,j,k,n)
endif
if (dthet.gt.0.0) then
if (dp(i,j,k,n).lt.onemm) then
if (locsig) then
alfadt=dsiglocdt(ahalf*(temp(i,j,k1,n)+
& temp(i,j,k ,n) ),
& ahalf*(saln(i,j,k1,n)+
& saln(i,j,k ,n) ),p(i,j,k))*
& (temp(i,j,k1,n)-
& temp(i,j,k, n) )
betads=dsiglocds(ahalf*(temp(i,j,k1,n)+
& temp(i,j,k ,n) ),
& ahalf*(saln(i,j,k1,n)+
& saln(i,j,k ,n) ),p(i,j,k))*
& (saln(i,j,k1,n)-
& saln(i,j,k, n) )
dthet=alfadt+betads
else
dthet=th3d(i,j,k1,n)-th3d(i,j,k,n)
endif
if(dthet.ge.0.0) then
saln(i,j,k,n)=saln(i,j,k1,n)
temp(i,j,k,n)=temp(i,j,k1,n)
th3d(i,j,k,n)=sig(temp(i,j,k,n),saln(i,j,k,n))-thbase
do ktr= 1,ntracr
tracer(i,j,k,n,ktr)=tracer(i,j,k1,n,ktr)
enddo
end if
else ! dp > onemm
if (iter.eq.itmax) then
if (locsig) then
plev=0.5*(p(i,j,ks+1)+p(i,j,k))
alfadt=0.5*
& (dsiglocdt(temp(i,j,ks,n),saln(i,j,ks,n),plev)+
& dsiglocdt(temp(i,j,k ,n),saln(i,j,k ,n),plev))*
& (temp(i,j,ks,n)-temp(i,j,k,n))
betads=0.5*
& (dsiglocds(temp(i,j,ks,n),saln(i,j,ks,n),plev)+
& dsiglocds(temp(i,j,k ,n),saln(i,j,k ,n),plev))*
& (saln(i,j,ks,n)-saln(i,j,k,n))
dthet=alfadt+betads
else
dthet=th3d(i,j,ks,n)-th3d(i,j,k,n)
endif
if (dthet.gt.sigjmp .and. dp(i,j,k,n).gt.onem) then
! only write out the lowest unstable layer
llayer = k.eq.kk
if (.not.llayer) then
llayer = dp(i,j,k+1,n).lt.onem .or.
& th3d(i,j,k+1,n).ge.th3d(i,j,ks,n)-sigjmp
endif
if (llayer) then
!$OMP CRITICAL
write (lp,'(i9,2i5,i3,a,i3,a,i3,a,2f10.4)')
& nstep,i+i0,j+j0,k,
& ' colmn unstbl (wrt',ks,') after',
& iter-1,' its',
& th3d(i,j,ks,n)+thbase,th3d(i,j,k,n)+thbase
!$OMP END CRITICAL
endif
endif
else ! it < itmax
cdiag sigup=th3d(i,j,ks,n)
cdiag siglo=th3d(i,j,k, n)
util1(i,j)=util1(i,j)+dp(i,j,k,n)
q=1.0-max(dp(i,j,k,n),0.5*onemm)/max(util1(i,j),onemm)
tem=temp(i,j,k,n)+q*(temp(i,j,ks,n)-temp(i,j,k,n))
sal=saln(i,j,k,n)+q*(saln(i,j,ks,n)-saln(i,j,k,n))
do ktr= 1,ntracr
trc(ktr)=tracer(i,j,k,n,ktr)+q*(tracer(i,j,ks,n,ktr)-
& tracer(i,j,k,n,ktr))
enddo
thet=sig(tem,sal)-thbase
do 10 kp=ks,k
temp(i,j,kp,n)=tem
saln(i,j,kp,n)=sal
th3d(i,j,kp,n)=thet
do ktr= 1,ntracr
tracer(i,j,kp,n,ktr)=trc(ktr)
enddo
10 continue
c
cdiag if (i.eq.itest .and. j.eq.jtest) then
cduag write (lp,100) nstep,i+i0,j+j0,k,iter,
cdiag& ' upr,lwr,final dens:',(sigup+thbase),
cdiag& (siglo+thbase),(th3d(i,j,k,n)+thbase),q
cdiag endif
100 format (i9,2i5,i3,' it',i2,a,3f8.3,f5.2)
c
end if
end if
else ! th3d(kn) > th3d(ksn)
klist(i,j)=k
util1(i,j)=dp(i,j,k,n)
end if
6 continue
c
ccc do k=1,kk
ccc colout(i)=colout(i)+temp(i,j,k,n)*dp(i,j,k,n)
ccc enddo !k
ccc if (abs((colout(i)-coluin(i))/coluin(i)).gt.1.e-6)
ccc . write (lp,'(i9,2i5,a/1p,3e14.6)') nstep,i,j,
ccc . ' column integral not conserved in convec:',
ccc . coluin(i),colout(i),(colout(i)-coluin(i))/coluin(i)
endif !ip
enddo !i
enddo !j
!$OMP END PARALLEL DO
c
cdiag if (itest.gt.0 .and. jtest.gt.0) then
cdiag write (lp,103) nstep,itest+i0,jtest+j0,
cdiag& ' exiting convec: temp saln dens thkns dpth',
cdiag& (k,temp(itest,jtest,k,n),saln(itest,jtest,k,n),
cdiag& th3d(itest,jtest,k,n)+thbase,dp(itest,jtest,k,n)*qonem,
cdiag& p(itest,jtest,k+1)*qonem,k=1,kk)
cdiag endif
c
return
end
c
subroutine convcm(m,n)
use mod_xc ! HYCOM communication interface
use mod_cb_arrays ! HYCOM saved arrays
c
c --- hycom version 1.0 (adapted from micom version 2.8)
implicit none
c
integer m,n
c
integer i,j,k,k1
real dthet,delp,alfadt,betads
c
include 'stmt_fns.h'
c
103 format (i9,2i5,a/(33x,i3,2f8.3,3p,f8.3,0p,f8.2,f8.1))
cdiag if (itest.gt.0 .and. jtest.gt.0) then
cdiag write (lp,103) nstep,itest+i0,jtest+j0,
cdiag& ' entering convec: temp saln dens thkns dpth',
cdiag& (k,temp(itest,jtest,k,n),saln(itest,jtest,k,n),
cdiag& th3d(itest,jtest,k,n)+thbase,dp(itest,jtest,k,n)*qonem,
cdiag& p(itest,jtest,k+1)*qonem,k=1,kk)
cdiag endif
c
c --- -------------------------------------------------------------
c --- entrain water lighter than mixed-layer water into mixed layer
c --- -------------------------------------------------------------
c
!$OMP PARALLEL DO PRIVATE(j,k,i,dthet,delp)
!$OMP& SCHEDULE(STATIC,jblk)
do j=1,jj
do i=1,ii
if (SEA_P) then
klist(i,j)=0
p(i,j,2)=dp(i,j,1,n)
dpo(i,j,1,n)=dp(i,j,1,n)
c
do k=2,kk
p(i,j,k+1)=p(i,j,k)+dp(i,j,k,n)
dpo(i,j,k,n)=0.
enddo !k
c
do k=2,kk
k1=k-1
c
p(i,j,k+1)=p(i,j,k)+dp(i,j,k,n)
if (dp(i,j,k,n).le.0. .or.
& (klist(i,j).gt.0 .and. k.gt.klist(i,j)+1)) exit !do k
if (locsig) then
alfadt=dsiglocdt(ahalf*(temp(i,j,k1,n)+
& temp(i,j,k ,n) ),
& ahalf*(saln(i,j,k1,n)+
& saln(i,j,k ,n) ),p(i,j,k))*
& (temp(i,j,k1,n)-
& temp(i,j,k, n) )
betads=dsiglocds(ahalf*(temp(i,j,k1,n)+
& temp(i,j,k ,n) ),
& ahalf*(saln(i,j,k1,n)+
& saln(i,j,k ,n) ),p(i,j,k))*
& (saln(i,j,k1,n)-
& saln(i,j,k, n) )
dthet=-alfadt-betads
else
dthet=th3d(i,j,k,n)-th3d(i,j,1,n)
endif
if (dthet.lt.0. .and. p(i,j,k+1).le.p(i,j,kk+1)) then
c
cdiag if (i.eq.itest .and. j.eq.jtest) then
cdiag write (lp,100) nstep,i+i0,j+j0,' convec',1,th3d(i,j,1,n)
cdiag& +thbase,dp(i,j,1,n)*qonem,temp(i,j,1,n),saln(i,j,1,n),k,
cdiag& th3d(i,j,k,n)+thbase,dp(i,j,k,n)*qonem,temp(i,j,k,n),saln(i,j,k,n)
cdiag endif
100 format (i9,2i5,a,i3,' th3d,dp,t,s =',3pf7.3,0pf7.1,2f8.3
& /26x,i3,15x,3pf7.3,0pf7.1,2f8.3)
c
c --- layer -k- contains mass less dense than mixed layer. entrain it.
delp=dp(i,j,1,n)+dp(i,j,k,n)
saln(i,j,1,n)=(saln(i,j,1,n)*dp(i,j,1,n)
& +saln(i,j,k, n)*dp(i,j,k, n))/delp
temp(i,j,1,n)=(temp(i,j,1,n)*dp(i,j,1,n)
& +temp(i,j,k, n)*dp(i,j,k, n))/delp
th3d(i,j,1,n)=sig(temp(i,j,1,n),saln(i,j,1,n))-thbase
c
diaflx(i,j,1)=diaflx(i,j,1)+dp(i,j,k,n) ! diapyc.flux
diaflx(i,j,k)=diaflx(i,j,k)-dp(i,j,k,n) ! diapyc.flux
c
c --- mass in layer -k- transferred to mixed layer is stored in -dpo-.
dp(i,j,1,n)=delp
dpo(i,j,k,n)=dp(i,j,k,n)
dp(i,j,k,n)=0.
klist(i,j)=k
end if ! dthet < 0
c
enddo !k
endif !ip
enddo !i
enddo !j
!$OMP END PARALLEL DO
c
do j=1,jj
do i=1,ii
if (ip(i,j).eq.1) then
util1(i,j) = klist(i,j)
else
util1(i,j) = 0.0
endif
enddo !j
enddo !i
call xctilr(util1, 1, 1, 1,1, halo_ps)
call xctilr(dpo(1-nbdy,1-nbdy,1,n),1,kk, 1,1, halo_ps)
do j=0,jj+1
do i=0,ii+1
klist(i,j) = util1(i,j)
enddo !j
enddo !i
c
!$OMP PARALLEL DO PRIVATE(j,k,i)
!$OMP& SCHEDULE(STATIC,jblk)
do j=1,jj
c
do i=1,ii
if (SEA_P) then
dpmixl(i,j,n)=dp(i,j,1,n)
endif !ip
c
c --- entrain -u- momentum
c
if (SEA_U) then
util2(i,j)=min(0.5*(dpo(i,j,1,n)+dpo(i-1,j,1,n)),depthu(i,j))
do k=2,max(klist(i,j),klist(i-1,j))
util1(i,j)=util2(i,j)
util2(i,j)=min(util2(i,j)+0.5*(dpo(i,j,k,n)+dpo(i-1,j,k,n)),
& depthu(i,j))
u(i,j,1,n)=(u(i,j,1,n)*util1(i,j)
& +u(i,j,k,n)*(util2(i,j)-util1(i,j)))/util2(i,j)
enddo !k
endif !iu
c
c --- entrain -v- momentum
c
if (SEA_V) then
util2(i,j)=min(0.5*(dpo(i,j,1,n)+dpo(i,j-1,1,n)),
& depthv(i,j))
do k=2,max(klist(i,j),klist(i,j-1))
util1(i,j)=util2(i,j)
util2(i,j)=min(util2(i,j)+0.5*(dpo(i,j,k,n)+dpo(i,j-1,k,n)),
& depthv(i,j))
util2(i,j)=min(util2(i,j)+0.5*(dpo(i,j,k,n)+dpo(i,j-1,k,n)),
& depthv(i,j))
v(i,j,1,n)=(v(i,j,1,n)*util1(i,j)
& +v(i,j,k,n)*(util2(i,j)-util1(i,j)))/util2(i,j)
enddo !k
endif !ip
enddo !i
c
enddo !j
!$OMP END PARALLEL DO
c
cdiag if (itest.gt.0 .and. jtest.gt.0) then
cdiag write (lp,103) nstep,itest+i0,jtest+j0,
cdiag& ' exiting convec: temp saln dens thkns dpth',
cdiag& (k,temp(itest,jtest,k,n),saln(itest,jtest,k,n),
cdiag& th3d(itest,jtest,k,n)+thbase,dp(itest,jtest,k,n)*qonem,
cdiag& p(itest,jtest,k+1)*qonem,k=1,kk)
cdiag endif
c
return
end
c
c
c> Revision history:
c>
c> July 1997 - deleted final pressure calculation loop (moved to to thermf.f)
c> Apr. 1999 - added calculation of -th3d-
c> Aug. 2000 - convcm: adapted from micom 2.8 to run within hycom 1.0
c> Oct. 1999 - convch: convection of u and v added
c> Oct. 2009 - convcm: MPI bug fix.
c> Oct 2010 - replaced two calls to dsiglocdX with one call at mid-point
c> Aug 2011 - replaced dpold,dpoldm with dpo
c> May 2014 - use land/sea masks (e.g. ip) to skip land