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ice_dynamics.F
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ice_dynamics.F
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*§§1 advect
*§§2 diffus
*§§3 dythxsum
*§§4 fcuv
*§§5 felld
*§§6 felld1
*§§7 first
*§§8 form
*§§9 full
*§§10 icemod
*§§11 icevel
*§§12 initial
*§§13 plast
*§§14 relax
*§§15 setice
*§§16 stressw
*§§17 strese !removed not in use
*§§18 stressa
*§§19 ustern !remove because not in use
*§§20 xmaxm
*§§21 xsum
*§§1 advect
subroutine advect(uice1,vice1,hisi,diff1,lad)
c-----------------------------------------------------------------------
c advect : solving continuity equation
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension hisi(m,n,3),uice1(nx,ny,3),vice1(nx,ny,3),
* uice(nx,ny),vice(nx,ny)
common/step/delice,error,deltt
common /gitter/ dt,r,g,dl,dlr,dlrh,dln(m),rdln(m),rad,dth,
* dlvo(m),dlvu(m),gh,rdt,dt2,r4,coru(m),corv(m),dtrdln(m),dtdlr
common/array/mhc(m,n),muv(nx,ny),maphc(m,n)
common/fast/muuv(nx,ny)
#ifdef MPI
include 'C_mpi.f'
common /cord/ I1,I2,J1,J2,IA1,IA2,JA1,JA2,IB1,IB2,JB1,JB2
1,ID1,ID2,JD1,JD2
common /icecor/ ICEI1,ICEI2,ICEJ1,ICEJ2,ICEIA1,ICEIA2,ICEJA1,
* ICEJA2,ICEX1,ICEX2,ICEY1,ICEY2,ICEP1,ICEP2,ICEQ1,ICEQ2,ICEX3,
* ICEX4,ICEY3,ICEY4,ICEX5,ICEX6,ICEY5,ICEY6
integer icheck
#endif
c now decide if backward euler or leapfrog
ll = lad
goto (101,102,102) ll
c leapfrog
101 deltt = delice*2.0
k3 = 3
goto 103
c backward euler
102 deltt = delice
k3 = 2
103 continue
k2 = 2
c rearrange hs
#ifdef MPI
do j=icey5,icey6
do i=icex5,icex6
#else
do j=1,ny-1
do i=2,nx
#endif
c uice(i,j) = uice1(i,j,1) *muuv(nx,ny)
c vice(i,j) = vice1(i,j,1) *muuv(nx,ny)
uice(i,j) = uice1(i,j,1) *muuv(i,j)
vice(i,j) = vice1(i,j,1) *muuv(i,j)
enddo
enddo
#ifdef MPI
icheck=0
do j=JB1,JB2
do i=IB1,IB2
#else
do j=1,n
do i=1,m
#endif
hisi(i,j,3) = hisi(i,j,2)
hisi(i,j,2) = hisi(i,j,1)
enddo
enddo
115 continue
c go through standard conservative advection
c central difference
delty = deltt/(8.0*dl)
#ifndef MPI
do j=1,ny-2
do i=3,nx
deltx = deltt/(8.0*dln(i))
do im=1,muv(i,j)
hisi(i-1,j+1,1) = hisi(i-1,j+1,k3)
* -deltx*(hisi(i-1,j+2,2)-hisi(i-1,j,2))
* *(uice(i-1,j+1)+uice(i,j+1)+uice(i-1,j)+uice(i,j))
* -delty*(hisi(i-2,j+1,2)-hisi(i,j+1,2))
* *(vice(i-1,j+1)+vice(i,j+1)+vice(i-1,j)+vice(i,j))
enddo
enddo
enddo
#else
if(icheck .EQ. 1)then
J_1=ICEJ1
J_2=ICEJ2
I_1=ICEI1
I_2=ICEI2
else
J_1=ICEJA1
J_2=ICEJA2
I_1=ICEIA1
I_2=ICEIA2
endif
do j=J_1,J_2
do i=I_1,I_2
deltx = deltt/(8.0*dln(i+1))
do im=1,muv(i+1,j-1)
hisi(i,j,1) = hisi(i,j,k3)
* -deltx*(hisi(i,j+1,2)-hisi(i,j-1,2))
* *(uice(i,j)+uice(i+1,j)+uice(i,j-1)+uice(i+1,j-1))
* -delty*(hisi(i-1,j,2)-hisi(i+1,j,2))
* *(vice(i,j)+vice(i+1,j)+vice(i,j-1)+vice(i+1,j-1))
enddo
enddo
enddo
#endif
c now decide if done
goto (131,133,136) ll
131 goto 139
133 continue
c do backward euler correction
#ifdef MPI
icheck=1
do j=JB1,JB2
do i=IB1,IB2
#else
do j=1,n
do i=1,m
#endif
do im=1,mhc(i,j)
hisi(i,j,3) = hisi(i,j,2)
hisi(i,j,2) = 0.5*(hisi(i,j,1)+hisi(i,j,2))
enddo
enddo
enddo
ll = 3
k3 = 3
goto 115
136 continue
c fix up h(i,j,2)
#ifdef MPI
icheck=1
do j=JB1,JB2
do i=IB1,IB2
#else
do j=1,n
do i=1,m
#endif
hisi(i,j,2) = hisi(i,j,3)
enddo
enddo
139 continue
c now do diffusion on h(i,j,k3)
do kd=1,2
goto (141,142),kd
141 continue
call diffus(uice,vice,hisi,diff1,kd)
goto 143
142 continue
imitt = m/2
diff2 = -(dln(imitt)**2)/deltt
call diffus(uice,vice,hisi,diff2,kd)
143 continue
#ifdef MPI
do j=j1,j2
do i=i1,i2
#else
do j=1,n
do i=1,m
#endif
hisi(i,j,1) = (hisi(i,j,1)+hisi(i,j,3))*mhc(i,j)
enddo
enddo
enddo
return
end
*§§2 diffus
c-----------------------------------------------------------------------
subroutine diffus(uice,vice,hisi,diff1,kd)
c-----------------------------------------------------------------------
c diffus hisi,multiplies by delt,and puts results in hisi(3)
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension hisi(m,n,3),uice(nx,ny),vice(nx,ny),hisi1(m,n)
common /step/ delice,error,deltt
common /gitter/ dt,r,g,dl,dlr,dlrh,dln(m),rdln(m),rad,dth,
* dlvo(m),dlvu(m),gh,rdt,dt2,r4,coru(m),corv(m),dtrdln(m),dtdlr
common /array/ mhc(m,n),muv(nx,ny),maphc(m,n)
#ifdef MPI
common /cord/ I1,I2,J1,J2,IA1,IA2,JA1,JA2,IB1,IB2,JB1,JB2
1,ID1,ID2,JD1,JD2
common /icecor/ ICEI1,ICEI2,ICEJ1,ICEJ2,ICEIA1,ICEIA2,ICEJA1,
* ICEJA2,ICEX1,ICEX2,ICEY1,ICEY2,ICEP1,ICEP2,ICEQ1,ICEQ2,ICEX3,
* ICEX4,ICEY3,ICEY4,ICEX5,ICEX6,ICEY5,ICEY6
#endif
c presetting
#ifdef MPI
do j=JB1,JB2
do i=IB1,IB2
#else
do j=1,n
do i=1,m
#endif
hisi1(i,j)=0.0
enddo
enddo
c do diffusion
deltyy=deltt*diff1/(dl**2)
#ifdef MPI
if(kd .EQ. 2)then
J_1=ICEJ1
J_2=ICEJ2
I_1=ICEI1
I_2=ICEI2
else
J_1=ICEJA1
J_2=ICEJA2
I_1=ICEIA1
I_2=ICEIA2
endif
do j=J_1,J_2
do i=I_1,I_2
#else
do j=2,ny-1
do i=2,nx-1
#endif
deltxx = deltt*diff1/(dln(i)**2)
do im=1,mhc(i,j)
hisi1(i,j) = deltxx*
* ((hisi(i,j+1,3)-hisi(i,j,3))*mhc(i,j+1)
* -(hisi(i,j,3)-hisi(i,j-1,3))*mhc(i,j-1))
* +deltyy*
* ((hisi(i-1,j,3)-hisi(i,j,3))*mhc(i-1,j)
* -(hisi(i,j,3)-hisi(i+1,j,3))*mhc(i+1,j))
enddo
enddo
enddo
c result
#ifdef MPI
if(kd .EQ. 2)then
J_1=J1
J_2=J2
I_1=I1
I_2=I2
else
J_1=JA1
J_2=JA2
I_1=IA1
I_2=IA2
endif
icheck1=1
do j=J_1,J_2
do i=I_1,I_2
#else
do j=1,n
do i=1,m
#endif
hisi(i,j,3) = hisi1(i,j)
enddo
enddo
return
end
*§§3 dyth
c-----------------------------------------------------------------------
subroutine dyth(uice,vice,hisi,hisir,fricei)
c-----------------------------------------------------------------------
c satisfy dynamic restraint
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension uice(nx,ny,3),vice(nx,ny,3),hisi(m,n,3)
* ,hisir(m,n,3),fricei(m,n,3)
common /step/ delice,error,deltt
common /gitter/ dt,r,g,dl,dlr,dlrh,dln(m),rdln(m),rad,dth,
* dlvo(m),dlvu(m),gh,rdt,dt2,r4,coru(m),corv(m),dtrdln(m),dtdlr
common /array/ mhc(m,n),muv(nx,ny),maphc(m,n)
#ifdef MPI
common /cord/ I1,I2,J1,J2,IA1,IA2,JA1,JA2,IB1,IB2,JB1
1,ID1,ID2,JD1,JD2
common /icecor/ ICEI1,ICEI2,ICEJ1,ICEJ2,ICEIA1,ICEIA2,ICEJA1,
* ICEJA2,ICEX1,ICEX2,ICEY1,ICEY2,ICEP1,ICEP2,ICEQ1,ICEQ2,ICEX3,
* ICEX4,ICEY3,ICEY4,ICEX5,ICEX6,ICEY5,ICEY6
#endif
hcr=0.1
#ifdef MPI
do 2 j=ICEJ1,ICEJ2
do 2 i=ICEI1,ICEI2
#else
do 2 j=2,ny-1
do 2 i=2,nx-1
#endif
do 2 im=1,mhc(i,j)
h = hisi(i,j,1)+hisir(i,j,1)
div = (uice(i,j,1)+uice(i+1,j,1)-uice(i,j-1,1)-uice(i+1,j-1,1))/
* (2.0*dln(i+1))
* +(vice(i,j,1)+vice(i,j-1,1)-vice(i+1,j,1)-vice(i+1,j-1,1))/
* (2.0*dl)
if(div.lt.0.0.and.fricei(i,j,1).ge.0.999) goto 902
fricei(i,j,1) = fricei(i,j,1)*(1.-div*delice)
goto 905
902 continue
if(h.lt.hcr) goto 903
hisir(i,j,1) = hisir(i,j,1)-h*div*delice
goto 905
903 continue
hisi(i,j,1) = hisi(i,j,1)-h*div*delice
905 continue
2 continue
#ifdef MPI
do j=J1,J2
do i=I1,I2
#else
do j=1,n
do i=1,m
#endif
hisi(i,j,1) = max(0.0,hisi(i,j,1))
hisir(i,j,1) = max(0.0,hisir(i,j,1))
fricei(i,j,1) = min(1.0,fricei(i,j,1))
fricei(i,j,1) = max(0.0,fricei(i,j,1))
enddo
enddo
return
end
*§§4 fcuv
c-----------------------------------------------------------------------
subroutine fcuv(fricei1)
c-----------------------------------------------------------------------
c determine the u, v and h information field
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension fricei1(m,n)
common/array/mhc(m,n),muv(nx,ny),maphc(m,n)
#ifdef MPI
include 'C_mpi.f'
include 'C_parallel.f'
include 'C_index.f'
parameter(khor1=khor+1)
common /ind/ iwet(khor1),ldep(khor),lazc(khor),indend(n),
* isornr(n),isorsr(n),islab(n)
#endif
#ifdef MPI
do J=JA1,JA2
do I=IA1,IA2
#else
do j=1,n
do i=1,m
#endif
mhc(i,j)=maphc(i,j)
if(maphc(i,j).le.0) mhc(i,j)=9
enddo
enddo
#ifdef MPI
do j=ICEJA1,ICEJA2
do i=ICEIA1,ICEIA2
#else
do j=2,n-1
do i=2,m-1
#endif
a0=fricei1(i-1,j)+fricei1(i+1,j)
* +fricei1(i,j-1)+fricei1(i,j+1)
if(mhc(i,j).gt.8) goto 101
if(a0.lt.1.0e-5) mhc(i,j) = 0
101 continue
enddo
enddo
#ifdef MPI
do j=icey1,icey2
do i=icex1,icex2
#else
do j=1,ny-1
do i=2,nx
#endif
mr1 = mhc(i,j)+mhc(i,j+1)+mhc(i-1,j)+mhc(i-1,j+1)
if(mr1.ge.9.or.mr1.eq.0)then
muv(i,j) = 0
else
muv(i,j) = 1
endif
enddo
enddo
#ifdef MPI
do J=JA1,JA2
do I=IA1,IA2
#else
do j=1,n
do i=1,m
#endif
if(mhc(i,j).eq.9) mhc(i,j) = 0
enddo
enddo
#ifdef MPI
call INTI_COMM_VAR
call com_ivertical(0,mhc,2,2,0,0,lazc)
call com_ivertical(0,muv,2,2,0,1,lazc)
call com_ihorizontal(0,mhc,2,2,0,0,icdepb2,idepb2,icdept2
*,idept2,ncsendb2,nsendb2,ncsendt2,nsendt2,nbhlayer2,nthlayer2)
call com_ihorizontal(0,muv,2,2,0,1,icdepb2,idepb2,icdept2
*,idept2,ncsendb2,nsendb2,ncsendt2,nsendt2,nbhlayer2,nthlayer2)
call MPI_Waitall(nreq1, ir_r_b, status, ierr)
INUM1=0
INUM2=0
call VER_IUNPACK(0,mhc,2,2,0,lazc)
call VER_IUNPACK(0,muv,2,2,0,lazc)
INUM3=0
INUM4=0
call HOR_IUNPACK(0,mhc,2,2,nbhlayer2,nthlayer2,
&idepb2,idept2,icdepb2,icdept2,0,iwet)
call HOR_IUNPACK(0,muv,2,2,nbhlayer2,nthlayer2,
&idepb2,idept2,icdepb2,icdept2,0,iwet)
#endif
return
end
*§§5 felld
c-----------------------------------------------------------------------
subroutine felld(uice,vice,eta,f,i,j,k,feta)
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension uice(nx,ny,3),vice(nx,ny,3),eta(m,n),f(4),feta(4,nx,ny)
common /dinv/ s1(m),s2,s3(m)
f(1) = feta(1,i,j)+s1(i)*(+uice(i,j-1,k)*(eta(i-1,j)+eta(i,j)))
f(2) = feta(2,i,j)+s2 *(+uice(i+1,j,k)*(eta(i,j) +eta(i,j+1)))
f(3) = feta(3,i,j)+0.5*s3(i)*(vice(i+1,j-1,k)*eta(i,j)+
* vice(i+1,j,k)*(-eta(i,j)
* +eta(i,j+1))-vice(i+1,j+1,k)*eta(i,j+1)+vice(i,j-1,k)*(-eta(i-1,j
* )+eta(i,j))
* -vice(i-1,j-1,k)*eta(i-1,j))
f(4) = feta(4,i,j)+s3(i)*0.5*
* (vice(i+1,j-1,k)*eta(i,j)+vice(i+1,j,k)*(-eta(i,j+1)
* +eta(i,j))-vice(i+1,j+1,k)*eta(i,j+1)+vice(i,j-1,k)*(eta(i-1,j)
* -eta(i,j))
* -vice(i-1,j-1,k)*eta(i-1,j))
return
end
*§§6 felld1
subroutine felld1(uice,vice,eta,f,k)
c-----------------------------------------------------------------------
c felld1,felld : calculating ice stress i
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension uice(nx,ny,3),vice(nx,ny,3),eta(m,n),f(4,nx,ny)
common/dinv/s1(m),s2,s3(m)
#ifdef MPI
include 'C_mpi.f'
common /icecor/ ICEI1,ICEI2,ICEJ1,ICEJ2,ICEIA1,ICEIA2,ICEJA1,
* ICEJA2,ICEX1,ICEX2,ICEY1,ICEY2,ICEP1,ICEP2,ICEQ1,ICEQ2,ICEX3,
* ICEX4,ICEY3,ICEY4,ICEX5,ICEX6,ICEY5,ICEY6
#endif
#ifdef MPI
do j=ICEQ1,ICEQ2
do i=ICEP1,ICEP2
#else
do j=2,ny-2
do i=3,nx-1
#endif
f(1,i,j) = s1(i)*(uice(i,j+1,k)*(eta(i-1,j+1)+eta(i,j+1)))
f(2,i,j) = s2 *(uice(i-1,j,k)*(eta(i-1,j+1)+eta(i-1,j)))
f(3,i,j) = s3(i)*
* (vice(i,j,k)* (-eta(i,j)-eta(i-1,j+1)+eta(i,j+1)+eta(i-1,j))
* +vice(i,j+1,k)*(-eta(i,j+1)+eta(i-1,j+1))
* +vice(i-1,j,k)*(-eta(i-1,j+1)+eta(i-1,j))
* +vice(i-1,j+1,k)*eta(i-1,j+1))
f(4,i,j) = s3(i)*
* (vice(i,j,k)* (eta(i-1,j)+eta(i,j+1)-eta(i,j)-eta(i-1,j+1))
* +vice(i,j+1,k)*(eta(i,j+1)-eta(i-1,j+1))
* +vice(i-1,j,k)*(eta(i-1,j+1)-eta(i-1,j))
* +vice(i-1,j+1,k)*eta(i-1,j+1))
f(3,i,j) = 0.5*f(3,i,j)
f(4,i,j) = 0.5*f(4,i,j)
enddo
enddo
return
end
*§§7 first
subroutine first(iizet,mm,nn,iffir,isice)
c-----------------------------------------------------------------------
include 'C_model.f'
#ifdef MPI
include 'C_mpi.f'
include 'C_parallel.f'
include 'C_index.f'
#endif
parameter (nx=m,ny=n,n4=nx*ny,n3=n*m)
dimension iizet(mm,nn)
character*6 date,hour*10,aaaa
common /step/ delice,error,deltt
common /dinv/ s1(m),s2,s3(m)
common /gitter/ dt,r,g,dl,dlr,dlrh,dln(m),rdln(m),rad,dth,
* dlvo(m),dlvu(m),gh,rdt,dt2,r4,coru(m),corv(m),dtrdln(m),dtdlr
common /array/ mhc(m,n),muv(nx,ny),maphc(m,n)
common /stresi/ stresi(m,n,3)
common /more/ diff1,lad,icount,nst6
common /ice/ cwa,ccw,tci,sice,rois,cp,tf,epsis,roil,dtroil,
* his(m,n),frice(m,n),tis(m,n),tair(m,n),qoc(m,n),icloud,
* solcon,frsw,frsi,time,xlat(m),ui(m,n),vi(m,n),us(m,n),vs(m,n)
common /icevelo/ uice(nx,ny,3),vice(nx,ny,3)
* ,uicec(nx,ny),vicec(nx,ny)
* ,uerr(nx,ny),verr(nx,ny)
* ,gairx(nx,ny),gairy(nx,ny),gwatx(nx,ny),gwaty(nx,ny)
* ,drags(nx,ny),draga(nx,ny),amass(nx,ny)
* ,eta(m,n),zeta(m,n),hisir(m,n,3)
* ,hisi(m,n,3),fricei(m,n,3)
* ,forcex(nx,ny),forcey(nx,ny)
common /hh/ hisr(m,n)
dimension u1(nx,ny,3),v1(nx,ny,3)
c dimension gairxx(nx,ny),gairyy(nx,ny)
c u1,v1 : used for output
c equivalence(uice,u1)
c equivalence(vice,v1)
dimension fricei1(m,n),hisi1(m,n)
c fricei1,hisi1 : used for output
equivalence(fricei,fricei1)
c time steps
deltt = 4.*60.*60.
delice = deltt
error = 0.001
c diff1 : diffuse coefficient
diff1 = 0.004*dl
lad = 2
icount = 0
c read initial fields and find ice-covered extent
if(iffir.eq.0) then
call initial(fricei,hisi,hisir,iizet,m,n)
end if
call fcuvs(fricei1)
do j=1,n
do i=1,m
hisi1(i,j)=hisi(i,j,1)+hisir(i,j,1)
enddo
enddo
call xsum(hisi1,fricei1,summass,sumfricei,sumhisi)
c write(6,1111) icount,summass,sumfricei,sumhisi
1111 format(1x,'time step=',i3,' mass sum=',e10.4,' fricei sum=',
* e12.4,' thick sum=',e12.4)
c get first value of u and v
cc------------------------------------
cc ute 01082017 test intiatlize zeta & eta eq 0
cc------------------------------------
do j=1,ny-1
do i=2,nx
zeta(i,j)= 0.
eta(i,j)= 0.
enddo
enddo
cc--------------------------------------------
c print*,' icemodell 2: ',maxval(eta),maxval(zeta)
c print*,' icemodell 3: ',maxval(gwatx),maxval(gwaty)
if(isice.eq.0)then
do j=1,ny-1
do i=2,nx
uice(i,j,1)= 0.02*gairx(i,j)*muv(i,j)
uice(i,j,2)=uice(i,j,1)
uice(i,j,3)=uice(i,j,1)
vice(i,j,1)=0.02*gairy(i,j)*muv(i,j)
vice(i,j,2)=vice(i,j,1)
vice(i,j,3)=vice(i,j,1)
uicec(i,j)=uice(i,j,1)
vicec(i,j)=vice(i,j,1)
enddo
enddo
theta=1.0
call form(uice,vice,eta,zeta,drags,draga,gairx,gairy,gwatx
* ,gwaty,forcex,forcey,hisi1,amass,fricei1)
c set amass=0 and define initial viscosity
do j=1,ny-1
do i=2,nx
amass(i,j)=0.0
zeta(i,j)=hisi1(i,j)*(1.0e+11)
eta(i,j)=zeta(i,j)/4.0
enddo
enddo
call relax(uice,vice,eta,zeta,drags,draga,amass,forcex,forcey
* ,theta,uicec,vicec)
elseif(isice.eq.1)then
do j=1,ny-1
do i=2,nx
uice(i,j,1)=ui(i,j)
uice(i,j,2)=uice(i,j,1)
uice(i,j,3)=uice(i,j,1)
vice(i,j,1)=vi(i,j)
vice(i,j,2)=vice(i,j,1)
vice(i,j,3)=vice(i,j,1)
uicec(i,j)=uice(i,j,1)
vicec(i,j)=vice(i,j,1)
enddo
enddo
do j=1,ny-1
do i=2,nx
amass(i,j)=0.0
zeta(i,j)=hisi1(i,j)*(1.0e+11)
eta(i,j)=zeta(i,j)/4.0
enddo
enddo
endif
return
end
*§§8 form
subroutine form(uice,vice,eta,zeta,drags,draga,gairx,gairy,
* gwatx,gwaty,forcex,forcey,hisi1,amass,fricei1)
c-----------------------------------------------------------------------
c form : calculate parameters for relaxation
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n)
dimension uice(nx,ny,3),vice(nx,ny,3)
&,eta(m,n),zeta(m,n)
&,drags(nx,ny),draga(nx,ny),dairn(nx,ny),dwatn(nx,ny)
&,gairx(nx,ny),gairy(nx,ny),gwatx(nx,ny),gwaty(nx,ny)
&,cor(nx,ny),forcex(nx,ny),forcey(nx,ny),amass(nx,ny)
&,hisi1(m,n),fricei1(m,n),pressi(m,n)
common/step/delice,error,deltt
common /gitter/ dt,r,g,dl,dlr,dlrh,dln(m),rdln(m),rad,dth,
ddlvo(m),dlvu(m),gh,rdt,dt2,r4,coru(m),corv(m),dtrdln(m),dtdlr
common/array/mhc(m,n),muv(nx,ny),maphc(m,n)
common/fast/muuv(nx,ny)
#ifdef MPI
include 'C_mpi.f'
common /cord/ I1,I2,J1,J2,IA1,IA2,JA1,JA2,IB1,IB2,JB1,JB2
1,ID1,ID2,JD1,JD2
common /icecor/ ICEI1,ICEI2,ICEJ1,ICEJ2,ICEIA1,ICEIA2,ICEJA1,
* ICEJA2,ICEX1,ICEX2,ICEY1,ICEY2,ICEP1,ICEP2,ICEQ1,ICEQ2,ICEX3,
* ICEX4,ICEY3,ICEY4,ICEX5,ICEX6,ICEY5,ICEY6
#endif
c----- set up basic constants
pai1=3.14159265/180.0
dwat=0.0055
dair=0.0018
rhowat=1010.0
rhoair=1.29
rhoice=910.0
fcor=1.46e-4*sin(60.0*pai1)
sinwin=0.0000
coswin=1.0000
c Achtung von 16. degree auf 0. wg. Umsetzung auf eine reale nicht
c geostrophische Wassergeschwindigkeit
sinwat=sin(16.*pai1)
sinwat=0.
coswat=cos(16.0*pai1)
coswat=1.
cc g=9.81
*20 deg gives sin equal to .34202
*now set up mass per unit fricei and coriolis term
#ifdef MPI
do 101 j=icey1,icey2
do 101 i=icex1,icex2
#else
do 101 j=1,ny-1
do 101 i=2,nx
#endif
cor(i,j)=0.
do 101 im=1,muv(i,j)
amass(i,j)=rhoice*0.25*
& (hisi1(i,j)+hisi1(i,j+1)+hisi1(i-1,j)+hisi1(i-1,j+1))
cor(i,j)=amass(i,j)*fcor
101 continue
c----- set up non linear,wind and water drag
#ifdef MPI
do 99 j=icey1,icey2
do 99 i=icex1,icex2
#else
do 99 j=1,ny-1
do 99 i=2,nx
#endif
dwatn(i,j)=0.
do 99 im=1,muv(i,j)
dwatn(i,j)=rhowat*dwat*sqrt((uice(i,j,1)-gwatx(i,j))**2
& +(vice(i,j,1)-gwaty(i,j))**2)
c----- set up symmettric drag
drags(i,j)=dwatn(i,j)*coswat
c----- set up anti symmettric drag plus coriolis
draga(i,j)=dwatn(i,j)*sinwat+cor(i,j)
99 continue
c----- set up forcing field
#ifdef MPI
do 104 j=icey1,icey2
do 104 i=icex1,icex2
#else
do 104 j=1,ny-1
do 104 i=2,nx
#endif
do 104 im=1,muv(i,j)
c----- add in current and wind force
forcex(i,j)=gairx(i,j)+dwatn(i,j)*
& (coswat*gwatx(i,j)-sinwat*gwaty(i,j))
forcey(i,j)=gairy(i,j)+dwatn(i,j)*
& (sinwat*gwatx(i,j)+coswat*gwaty(i,j))
104 continue
c----- set up ice pressiure strangth coefficient
pstar=1.0e4
c----- set up values
#ifdef MPI
if(myid.eq.0)print*,'press',maxval(pressi),minval(pressi)
do 105 j=ja1,ja2
do 105 i=ia1,ia2
#else
do 105 j=1,n
do 105 i=1,m
#endif
c15102017 Ute die Belegung von pressi war nicht korrekt
pressi(i,j)=0.
do 105 im=1,mhc(i,j)
pressi(i,j)=pstar*hisi1(i,j)*exp(-20.0*(1.0-fricei1(i,j)))
105 continue
if(myid.eq.0)print*,'press',maxval(pressi),minval(pressi)
c----- calculate stresi, strain, zeta and eta %ca6 not here
call plast(uice,vice,pressi,eta,zeta)
c----- calculate pressiure force and add to external force
#ifdef MPI
do 107 j=icey1,icey2
do 107 i=icex1,icex2
#else
do 107 j=1,ny-1
do 107 i=2,nx
#endif
do 107 im=1,muv(i,j)
forcex(i,j)=forcex(i,j)-(0.25/dln(i))*
& (pressi(i,j+1)+pressi(i-1,j+1)-pressi(i,j)-pressi(i-1,j))
forcey(i,j)=forcey(i,j)-(0.25/dl)*
& (pressi(i-1,j)+pressi(i-1,j+1)-pressi(i,j)-pressi(i,j+1))
107 continue
return
end
*§§9 full
SUBROUTINE full (m,n,S)
c-----------------------------------------------------------------------
c fill 2-D arrays (land points)
c-----------------------------------------------------------------------
dimension S(M,N)
DIMENSION SA(M,N)
do i=1,m
do j=1,n
sa(i,j) = -990.
enddo
enddo
DO IOFT=1,1000
do i=1,m
do j=1,n
sa(i,j) = s(i,j)
enddo
enddo
DO J=2,N-1
DO I=2,M-1
IF(Sa(I,J).gE.-900.) THEN
IF(S(I,J-1).lT.-900.) S(I,J-1) = Sa(I,J)
IF(S(I-1,J).lT.-900.) S(I-1,J) = Sa(I,J)
IF(S(I+1,J).lT.-900.) S(I+1,J) = Sa(I,J)
IF(S(I,J+1).lT.-900.) S(I,J+1) = Sa(I,J)
c IF(S(I-1,J+1).lT.-900.) S(I-1,J+1) = Sa(I,J)
c IF(S(I+1,J+1).lT.-900.) S(I+1,J+1) = Sa(I,J)
c IF(S(I-1,J-1).lT.-900.) S(I-1,J-1) = Sa(I,J)
c IF(S(I+1,J-1).lT.-900.) S(I+1,J-1) = Sa(I,J)
ENDIF
enddo
enddo
JOJO = 0
DO J=2,N-1
DO I=2,M-1
if(s(i,j).lt.-900.) jojo = 1
enddo
enddo
IF(JOJO.EQ.0) GOTO 2
enddo
PRINT*,'after 1000 iterations not fully filled'
2 CONTINUE
do i=1,m
s(i,1) = s(i,2)
s(i,n) = s(i,n-1)
enddo
do j=1,n
s(1,j) = s(2,j)
s(m,j) = s(m-1,j)
enddo
s(1,1) = s(2,2)
s(m,n) = s(m-1,n-1)
s(1,n) = s(2,n-1)
s(m,1) = s(m-1,2)
RETURN
END
*§§10 icemod
subroutine icemod
c-----------------------------------------------------------------------
c baltic sea ice model by zhanhai zhang; after lepparanta
c this is a program for viscous plastic sea ice model
c h : 38*48 u,v : 37*47
c-----------------------------------------------------------------------
c hisi : the level ice thickness
c hisir : the ridged ice thickness
c fricei : the ice compactness
c uice : the ice velocity in x_direction
c vice : the ice velocity in y_direction
c (nx,ny) : the number of grid points of velocity
c (n,m) : the number of grid points of thickness etc.
c uicec,vicec : ice velocity used for calculating advective term
c eta : shear viscosity coefficient
c zeta : bulk viscosity coefficient
c gairx,gairy : geostraphical wind speed
c gwatx,gwaty : geostraphical current
c amass : the ice mass
c drags,graga : the water & air coefficient
c delice : the time step
c dln,dl : the grid distance in x_ & y_ direction
c mhc,muv : the thickness & velocity information field
c-----------------------------------------------------------------------
include 'C_model.f'
parameter (nx=m,ny=n,n4=nx*ny,n3=n*m)
common/icevelo/ uice(nx,ny,3),vice(nx,ny,3)
&,uicec(nx,ny),vicec(nx,ny)
&,uerr(nx,ny),verr(nx,ny)
&,gairx(nx,ny),gairy(nx,ny),gwatx(nx,ny),gwaty(nx,ny)
&,drags(nx,ny),draga(nx,ny),amass(nx,ny)
&,eta(m,n),zeta(m,n),hisir(m,n,3)
&,hisi(m,n,3),fricei(m,n,3)
&,forcex(nx,ny),forcey(nx,ny)
character*6 date,hour*10,aaaa
common/step/delice,error,deltt
common/dinv/s1(m),s2,s3(m)
common /gitter/ dt,r,g,dl,dlr,dlrh,dln(m),rdln(m),rad,dth,
ddlvo(m),dlvu(m),gh,rdt,dt2,r4,coru(m),corv(m),dtrdln(m),dtdlr
common/more/ diff1,lad,icount,nst6
common/array/mhc(m,n),muv(nx,ny),maphc(m,n)
common/fast/muuv(nx,ny)
common/stresi/stresi(m,n,3)
dimension u1(nx,ny),v1(nx,ny)
c----- u1,v1 : used for output
equivalence(uice,u1)
equivalence(vice,v1)
c----- fricei1,hisi1 : used for output
dimension fricei1(m,n),hisi1(m,n)
equivalence(fricei,fricei1)
c equivalence(hisi,hisi1)
c----- uerr,verr : the velocity different
dimension uerrv(nx,ny),verrv(nx,ny)
equivalence (uerr,uerrv),(verr,verrv)
#ifdef MPI
include 'C_mpi.f'
include 'C_parallel.f'
include 'C_index.f'
parameter(khor1=khor+1)
common /ind/ iwet(khor1),ldep(khor),lazc(khor),indend(n),
* isornr(n),isorsr(n),islab(n)
#endif
#ifdef MPI
do 121 j=icey5,icey6
do 121 i=icex5,icex6
#else
do 121 j=1,ny-1
do 121 i=2,nx
#endif
uice(i,j,3)=uice(i,j,1)
vice(i,j,3)=vice(i,j,1)
uicec(i,j)=uice(i,j,1)
vicec(i,j)=vice(i,j,1)
121 continue
#ifdef MPI
do 122 j=JB1,JB2
do 122 i=IB1,IB2
#else
do 122 j=1,n
do 122 i=1,m
#endif
hisi1(i,j)=hisi(i,j,1)+hisir(i,j,1)
c fricei1(i,j)=fricei(i,j,1)
122 continue
theta=1.0
delice=deltt/2.0
call fcuv(fricei1)
call form(uice,vice,eta,zeta,drags,draga,gairx,gairy,gwatx
&,gwaty,forcex,forcey,hisi1,amass,fricei1)
call relax(uice,vice,eta,zeta,drags,draga,amass,forcex,forcey
&,theta,uicec,vicec)
c----- do regular time step
c----- doing backwards time step
theta=1.0
delice=deltt
!----ca9 hier passiert was ------
call form(uice,vice,eta,zeta,drags,draga,gairx,gairy,gwatx
&,gwaty,forcex,forcey,hisi1,amass,fricei1)
c----- set u(1)=u(2) and same for v
#ifdef MPI
do 111 j=icey5,icey6
do 111 i=icex5,icex6
#else
do 111 j=1,ny-1
do 111 i=2,nx
#endif
uice(i,j,3)=uice(i,j,1)
vice(i,j,3)=vice(i,j,1)
uicec(i,j)=uice(i,j,1)
vicec(i,j)=vice(i,j,1)
uice(i,j,1)=uice(i,j,2)
vice(i,j,1)=vice(i,j,2)
111 continue
call relax(uice,vice,eta,zeta,drags,draga,amass,forcex,forcey