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setperturb.f90
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setperturb.f90
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subroutine setperturb
! Random noise
use vars
use params
use microphysics, only: micro_field, index_water_vapor
use sgs, only: setperturb_sgs
implicit none
integer i,j,k,ptype,it,jt,n,ii,jj
real rrr,ranf_
real xxx,yyy,zzz,sss
call ranset_(3+nensemble)
ptype = perturb_type
call setperturb_sgs(ptype) ! set sgs fields
call task_rank_to_index(rank,it,jt)
select case (ptype)
case(-1) ! no perturbation is set
case(0)
sss = 0.
do k=1,nzm
do jj=1,ny_gl
j=jj-jt
do ii=1,nx_gl
i=ii-it
rrr=1.-2.*ranf_()
sss = sss + rrr
if(i.ge.1.and.i.le.nx.and.j.ge.1.and.j.le.ny) then
if(k.le.5) then
t(i,j,k)=t(i,j,k)+0.02*rrr*(6-k)
endif
end if
end do
end do
end do
if(masterproc) print*,'>>>>>> sss=',sss
case(1)
do k=1,nzm
do jj=1,ny_gl
j=jj-jt
do ii=1,nx_gl
i=ii-it
rrr=1.-2.*ranf_()
if(i.ge.1.and.i.le.nx.and.j.ge.1.and.j.le.ny) then
if(q0(k).gt.6.e-3) then
t(i,j,k)=t(i,j,k)+0.1*rrr
endif
end if
end do
end do
end do
case(2) ! warm bubble
if(masterproc) then
print*, 'initialize with warm bubble:'
print*, 'bubble_x0=',bubble_x0
print*, 'bubble_y0=',bubble_y0
print*, 'bubble_z0=',bubble_z0
print*, 'bubble_radius_hor=',bubble_radius_hor
print*, 'bubble_radius_ver=',bubble_radius_ver
print*, 'bubble_dtemp=',bubble_dtemp
print*, 'bubble_dq=',bubble_dq
end if
do k=1,nzm
zzz = z(k)
do j=1,ny
yyy = dy*(j+jt)
do i=1,nx
xxx = dx*(i+it)
if((xxx-bubble_x0)**2+YES3D*(yyy-bubble_y0)**2.lt.bubble_radius_hor**2 &
.and.(zzz-bubble_z0)**2.lt.bubble_radius_ver**2) then
rrr = cos(pi/2.*(xxx-bubble_x0)/bubble_radius_hor)**2 &
*cos(pi/2.*(yyy-bubble_y0)/bubble_radius_hor)**2 &
*cos(pi/2.*(zzz-bubble_z0)/bubble_radius_ver)**2
t(i,j,k) = t(i,j,k) + bubble_dtemp*rrr
micro_field(i,j,k,index_water_vapor) = &
micro_field(i,j,k,index_water_vapor) + bubble_dq*rrr
end if
end do
end do
end do
case(3) ! gcss wg1 smoke-cloud case
do k=1,nzm
do jj=1,ny_gl
j=jj-jt
do ii=1,nx_gl
i=ii-it
rrr=1.-2.*ranf_()
if(i.ge.1.and.i.le.nx.and.j.ge.1.and.j.le.ny) then
if(q0(k).gt.0.5e-3) then
t(i,j,k)=t(i,j,k)+0.1*rrr
endif
end if
end do
end do
end do
case(4) ! gcss wg1 arm case
do k=1,nzm
do jj=1,ny_gl
j=jj-jt
do ii=1,nx_gl
i=ii-it
rrr=1.-2.*ranf_()
if(i.ge.1.and.i.le.nx.and.j.ge.1.and.j.le.ny) then
if(z(k).le.200.) then
t(i,j,k)=t(i,j,k)+0.1*rrr*(1.-z(k)/200.)
endif
end if
end do
end do
end do
case(5) ! gcss wg1 BOMEX case
do k=1,nzm
do jj=1,ny_gl
j=jj-jt
do ii=1,nx_gl
i=ii-it
rrr=1.-2.*ranf_()
if(i.ge.1.and.i.le.nx.and.j.ge.1.and.j.le.ny) then
if(z(k).le.1600.) then
t(i,j,k)=t(i,j,k)+0.1*rrr
micro_field(i,j,k,index_water_vapor)= &
micro_field(i,j,k,index_water_vapor)+0.025e-3*rrr
endif
end if
end do
end do
end do
case(6) ! GCSS Lagragngian ASTEX
do k=1,nzm
do jj=1,ny_gl
j=jj-jt
do ii=1,nx_gl
i=ii-it
rrr=1.-2.*ranf_()
if(i.ge.1.and.i.le.nx.and.j.ge.1.and.j.le.ny) then
if(q0(k).gt.6.e-3) then
t(i,j,k)=t(i,j,k)+0.1*rrr
micro_field(i,j,k,index_water_vapor)= &
micro_field(i,j,k,index_water_vapor)+2.5e-5*rrr
endif
end if
end do
end do
end do
case default
if(masterproc) print*,'perturb_type is not defined in setperturb(). Exitting...'
call task_abort()
end select
end