MODULE drag3
USE param
USE inputdata
implicit none
type, public:: data_in
real, public:: ws, dt, st, dq, cflh, z0in
end type
type, public:: data_outdef
real, public:: zl, ri, re, lnzuzt, zu, ztout, rith, cm, ch, ct, ckt
end type
type, public:: data_par
integer, public :: it=10
end type
type, public:: data_lutyp
integer, public :: lu_indx=1
end type
contains
! SUBROUTINE surf_fluxMAS(mas1_w, mas1_dt, mas1_st, mas1_dq, out, par1, lu1)
SUBROUTINE surf_fluxMAS(mas1_w, mas1_dt, mas1_st, mas1_dq, mas1_cflh, mas1_z0in, &
masout_zl, masout_ri, masout_re, masout_lnzuzt, masout_zu, masout_ztout,&
masout_rith, masout_cm, masout_ch, masout_ct, masout_ckt,&
par1, lu1,numst)
real, dimension (numst) :: mas1_w
real, dimension (numst) :: mas1_dt
real, dimension (numst) :: mas1_st
real, dimension (numst) :: mas1_dq
real, dimension (numst) :: mas1_cflh
real, dimension (numst) :: mas1_z0in
real, dimension (numst) :: masout_zl
real, dimension (numst) :: masout_ri
real, dimension (numst) :: masout_re
real, dimension (numst) :: masout_lnzuzt
real, dimension (numst) :: masout_zu
real, dimension (numst) :: masout_ztout
real, dimension (numst) :: masout_rith
real, dimension (numst) :: masout_cm
real, dimension (numst) :: masout_ch
real, dimension (numst) :: masout_ct
real, dimension (numst) :: masout_ckt
type (data_in) in
type (data_outdef) out
type (data_par) par1
type (data_lutyp) lu1
integer i,numst
do i=1,numst
in%ws=mas1_w(i)
in%dt=mas1_dt(i)
in%st=mas1_st(i)
in%dq=mas1_dq(i)
in%cflh=mas1_cflh(i)
in%z0in=mas1_z0in(i)
CALL surf_flux(in, out, par1, lu1)
masout_zl(i)=out%zl
masout_ri(i)=out%ri
masout_re(i)=out%re
masout_lnzuzt(i)=out%lnzuzt
masout_zu(i)=out%zu
masout_ztout(i)=out%ztout
masout_rith(i)=out%rith
masout_cm(i)=out%cm
masout_ch(i)=out%ch
masout_ct(i)=out%ct
masout_ckt(i)=out%ckt
enddo
END SUBROUTINE surf_fluxMAS
SUBROUTINE surf_flux(in, out, par, lu)
type (data_in) , intent(in) :: in
type (data_outdef) out
type (data_par) par
type (data_lutyp) lu
real ws, dt, st, dq, cflh, z0in
integer it
integer lu_indx
real zl, ri, re, lnzuzt, zu, ztin, ri_th, cm, ch, ct, ckt
real z0, d3, d0max, u1, a1, y1, cimin, f, c1, u2, h0, u3, x7, d0, d00, zt, h00, ft0, an4, an5
real al, t1, r6, q4, t4, u, r1, f0, f4, am, o, dd, x1, y0, x0, z3, y10, a2ch, x10, p1, p0, h, d1, f1
real d, c4, c1min, c0, c, b1, an0
integer i, j, m
ws=in%ws
dt=in%dt
st=in%st
dq=in%dq
cflh=in%cflh
z0in=in%z0in
it=par%it
u=ws
t4=dt
t1=st
q4=dq
h=cflh
z0=z0in
AN5=(A6/A0)**4
D1=(2.0E0*G10-AN5*G4-SQRT((AN5*G4)**2+4.0E0*AN5*G10*(G10-G4)))/(2.0E0*G10**2)
Y10=(1.0E0-G4*D1)**.25E0
X10=(1.0E0-G10*D1)**.5E0
P1=2.0E0*ATAN(Y10)+ALOG((Y10-1.0E0)/(Y10+1.0E0))
P0=ALOG((X10-1.0E0)/(X10+1.0E0))
d3=0.0e0
d0max=2.0e0
if(z0.lt.0.0e0) d0max=8.0e0
if(z0.lt.0.0e0) then
!> @brief Test - definition z0 of sea surface
!> @details if lu_indx=2.or.lu_indx=3 call z0sea module (Ramil_Dasha)
u1=u
a1=0.0e0
y1=25.0e0
c1min=alog(h1/1.0e0)/ap0
do 630 i=1,it
f=a2-2.0e0*alog(u1)
do 570 j=1,it
c1=(f+2.0e0*alog(y1))/ap0
if(u.le.8.0e0) a1=alog(1.0e0+a3*((y1/u1)**3))/ap0
c1=c1-a1
c1=amax1(c1,c1min)
y1=c1
570 continue
z0=h1*exp(-c1*ap0)
z0=amax1(z0,0.000015e0)
u2=u*alog(h1/z0)/(alog(h/z0))
u1=u2
630 continue
j=1
h0=h/z0
u3=u1/c1
else
! ......parameters from viscosity sublayer......
j=0
h0=h/z0
u3=u*ap0/alog(h0)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
end if
x7=u3*z0/an
if(x7.le.x8) then
d0=an1*alog(al1*x7)+an2
else
d0=al2*(x7**0.45e0)
end if
! ......humidity stratification and ri-number......
st=in%st
al=g/t1
d0=amin1(d0,d0max)
r6=al*h*(t4+0.61e0*t1*q4)/u**2
d00=d0
zt=z0/exp(d00)
h00=h/zt
ft0=alog(h00)
! ......definition of r-prim......
an4=d1/h0
an5=d1/h00
!c if(d0.eq.0.0e0) an5=an4
if (abs(d0).lt.1.0e-10) an5=an4
an5=sqrt(1.0e0-g0*an5)
an4=(1.0e0-g4*an4)**0.25e0
f0=alog((x10-1.0e0)*(an5+1.0e0)/((x10+1.0e0)*(an5-1.0e0)))/a0
f4=2.0e0*(atan(y10)-atan(an4))+alog((y10-1.0e0)*(an4+1.0e0)/((y10+1.0e0)*(an4-1.0e0)))
r1=d1*f0/(f4*f4)
! ......definition of dz,ta,fu,fo,fiu,fio......
if(r6.gt.0.0e0) go to 1460
if(r6.lt.r1) go to 1305
if(r6.gt.-0.001e0) then
! ......nearly neutral......
write (*,*) 'neutral'
f4=alog(h0)
f0=ft0/a0
! if(d0.eq.0.0e0) f0=f4/a0
if (abs(d0).lt.1.0e-10) f0=f4/a0
am=1.0e0
o=1.0e0/a0
go to 1570
else
! ......week and semistrong instability......
write (*,*) 'semistrong'
f1=alog(h0)
! if(d0.eq.0.0e0)ft0=f1
if (abs(d0).lt.1.0e-10) ft0=f1
d3=r6*a0*f1**2/ft0
m=1
1245 do 1300 i=1,it
d=d3/h0
dd=d3/h00
! if(d0.eq.0.0e0)dd=d
if (abs(d0).lt.1.0e-10) dd=d
y1=(1.0e0-g4*d3)**0.25e0
x1=sqrt(1.0e0-g0*d3)
y0=(1.0e0-g4*d)**0.25e0
x0=sqrt(1.0e0-g0*dd)
y0=amax1(y0,1.000001e0)
x0=amax1(x0,1.000001e0)
f4=alog((y1-1.0e0)*(y0+1.0e0)/((y1+1.0e0)*(y0-1.0e0)))+2.0e0*(atan(y1)-atan(y0))
f0=alog((x1-1.0e0)*(x0+1.0e0)/((x1+1.0e0)*(x0-1.0e0)))/a0
if(m.ne.1) go to 1350
z3=r6*f4**2/f0
d3=z3
1300 continue
m=2
go to 1245
1350 am=(1.0e0-g4*d3)**(-0.25e0)
o=1.0e0/(a0*sqrt(1.0e0-g0*d3))
go to 1570
end if
! ......strong instability.....
1305 continue
write (*,*) 'instability'
d3=d1
m=1
1355 do 1410 i=1,it
d=d3/h0
dd=d3/h00
! if(d0.eq.0.0e0)dd=d
if (abs(d0).lt.1.0e-10) dd=d
a1=(d1/d3)**(1.0e0/3.0e0)
x0=sqrt(1.0e0-g0*dd)
y0=(1.0e0-g4*d)**0.25e0
c=alog((x0+1.0e0)/(x0-1.0e0))
b1=-2.0e0*atan(y0)+alog((y0+1.0e0)/(y0-1.0e0))
f=3.0e0*(1.0e0-a1)
f4=f/y10+p1+b1
f0=(f/x10+p0+c)/a0
if(m.ne.1) go to 1430
z3=r6*f4**2/f0
d3=z3
1410 continue
m=2
go to 1355
1430 am=a1/y10
o=a1/(a0*x10)
go to 1570
! ......stable stratification......
1460 continue
write (*,*) 'stable'
r6=amin1(r6,r0)
f=alog(h0)
f1=d0/f
a1=b4*r6
a2ch=(f1+1.0e0)/a0-2.0e0*a1
d3=f*(sqrt(a2ch**2+4.0e0*a1*(1.0e0-a1))-a2ch)/(2.0e0*b4*(1.0e0-a1))
f1=b4*d3
f4=f+f1
f0=(f+d0)/a0+f1
o=1.0e0/a0+f1
am=1.0e0+f1
1570 continue
! ......computation of cu,co,k(h),alft
c4=ap0/f4
c0=ap0/f0
an4=ap0*c4*u*h/am
an0=am/o
! ......exit......
140 continue
out%zl=d3
out%ri=r6
out%re=x7
out%lnzuzt=d00
out%zu=z0
out%ztout=zt
out%rith=r1
out%cm=c4
out%ch=c0
out%ct=an4
out%ckt=an0
return
END SUBROUTINE surf_flux
END MODULE drag3