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3D emission and namelist options; emission switch (l_emission) and ve…
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…rtical upper limit to apply emission (kemis)
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Marco de Bruine committed Jul 3, 2020
1 parent 7818aeb commit 12dd3e3
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Showing 2 changed files with 82 additions and 29 deletions.
18 changes: 13 additions & 5 deletions src/modemisdata.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -34,15 +34,23 @@ module modemisdata
implicit none
save

real, allocatable :: &
svemis_a (:,:,:), &
svemis_b (:,:,:)
! Namelist variables

logical :: l_emission = .false.
integer :: kemis = -1

! Main variables

real, allocatable :: svemis (:,:,:,:,:)

! TODO INTEGRATION WITH MODCHEM, possibly switch?
! For example, nchem, firstchem etc, but also structure for species
! 'location', i.e. switch scalar field represents which species?

character (len = 3), dimension(4) :: svlist = (/'nr', 'qr', 'co2', 'ch4' /)
logical, dimension(4) :: emislist = (/.false., .false., .true., .false./)
character (len = 3), dimension(1) :: svlist = (/'co2' /)
logical, dimension(1) :: emislist = (/.true./)

! character (len = 3), dimension(4) :: svlist = (/'nr', 'qr', 'co2', 'ch4' /)
! logical, dimension(4) :: emislist = (/.false., .false., .true., .false./)

end module modemisdata
93 changes: 69 additions & 24 deletions src/modemission.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -32,30 +32,64 @@ module modemission

subroutine initemission

use modglobal, only : i2, j2, nsv
use modglobal, only : i2, j2,kmax, nsv, ifnamopt, fname_options
use modmpi, only : myid, comm3d, mpi_logical, mpi_integer
use moddatetime, only : datex, prevday, nextday

implicit none

! Auxiliary variables
integer :: ierr

! --- Read & broadcast namelist EMISSION -----------------------------------
namelist/NAMEMISSION/ l_emission, kemis

if (myid == 0) then

open(ifnamopt, file=fname_options, status='old', iostat=ierr)
read(ifnamopt, NAMEMISSION, iostat=ierr)

if (ierr > 0) then
print *, 'iostat error: ', ierr
stop 'ERROR: Problem in namoptions NAMEMISSION'
endif

write(6, NAMEMISSION)
close(ifnamopt)

endif

call mpi_bcast(l_emission, 1, mpi_logical, 0, comm3d, ierr)
call mpi_bcast(kemis, 1, mpi_integer, 0, comm3d, ierr)

allocate(svemis_a(i2,j2,nsv))
allocate(svemis_b(i2,j2,nsv))
! --- Local pre-calculations and settings
if (.not. (l_emission)) return

if (kemis == -1) kemis = kmax

! --- Read emission files for first time step ----------------------------------

! Two hourly emission fields are loaded at all times:
! (1) before model time, t_field < t_model, "in-the-past"
! (2) ahead of model time, t_field > t_model, "in-the-future"
allocate(svemis(i2, j2, kemis, nsv, 2))

if (datex(5) >= 30) then
call reademission( datex(1), datex(2), datex(3), datex(4), svemis_a)
call reademission( datex(1), datex(2), datex(3), datex(4), svemis(:,:,:,:,1))

if (datex(4) == 23) then
call reademission(nextday(1), nextday(2), nextday(3), 0, svemis_b)
call reademission(nextday(1), nextday(2), nextday(3), 0, svemis(:,:,:,:,2))
else
call reademission( datex(1), datex(2), datex(3), datex(4)+1, svemis_b)
call reademission( datex(1), datex(2), datex(3), datex(4)+1, svemis(:,:,:,:,2))
endif

else
call reademission( datex(1), datex(2), datex(3), datex(4), svemis_b)
call reademission( datex(1), datex(2), datex(3), datex(4), svemis(:,:,:,:,2))

if (datex(4) == 0) then
call reademission(prevday(1), prevday(2), prevday(3), 23, svemis_a)
call reademission(prevday(1), prevday(2), prevday(3), 23, svemis(:,:,:,:,1))
else
call reademission( datex(1), datex(2), datex(3), datex(4)-1, svemis_a)
call reademission( datex(1), datex(2), datex(3), datex(4)-1, svemis(:,:,:,:,1))
endif

endif
Expand All @@ -77,7 +111,7 @@ subroutine reademission(iyear, imonth, iday, ihour, emisfield)
implicit none

integer, intent(in) :: iyear, imonth, iday, ihour
real, intent(out) :: emisfield(i2,j2,nsv)
real, intent(out) :: emisfield(i2, j2, kemis, nsv)

integer, parameter :: ndim = 3
integer :: start(ndim), count(ndim)
Expand All @@ -94,12 +128,12 @@ subroutine reademission(iyear, imonth, iday, ihour, emisfield)
do isv = 1, nsv

if (emislist(isv)) then
call check( nf90_open( svlist(isv)//'_emis_'//sdatetime//'.nc', IOR(NF90_NOWRITE, NF90_MPIIO), &
call check( nf90_open( svlist(isv)//'_emis_'//sdatetime//'_3d.nc', IOR(NF90_NOWRITE, NF90_MPIIO), &
ncid, comm = comm3d, info = MPI_INFO_NULL) )
call check( nf90_inq_varid( ncid, svlist(isv), varid) )
call check( nf90_get_var ( ncid, varid, emisfield(2:i1,2:j1,isv), &
start = (/1 + myidx * imax, 1 + myidy * jmax, 1/), &
count = (/imax, jmax, 1/) ) )
call check( nf90_get_var ( ncid, varid, emisfield(2:i1,2:j1,1:kemis,isv), &
start = (/1 + myidx * imax, 1 + myidy * jmax, 1, 1/), &
count = (/imax, jmax, kemis, 1/) ) )
call check( nf90_close( ncid ) )
endif

Expand Down Expand Up @@ -128,8 +162,8 @@ subroutine emission
! gridbx size and air density AND apply a factor of 1e6.
!
! TODO
! 1. MDB Align properly with non-chem tracers, i.e. cloud scalars from e.g.
! microphysics.
! 1. MDB Align properly with "non-emitted" tracers, i.e. cloud scalars from e.g.
! microphysics/chemistry
! ----------------------------------------------------------------------

use modfields, only : svp
Expand All @@ -141,17 +175,26 @@ subroutine emission

implicit none

integer :: k

real :: emistime_s, emistime_e ! Emission timers
real, parameter :: div3600 = 1./3600. ! Quick division


if (.not. (l_emission)) return

! --------------------------------------------------------------------------
! Interpolate and apply emission
! --------------------------------------------------------------------------
emistime_s = mod(rtimee + 1800., 3600.)*div3600

svp(2:i1,2:j1,1,1:nsv) = svp(2:i1,2:j1,1,1:nsv) + &
((1. - emistime_s)*svemis_a(2:i1, 2:j1, 1:nsv) + &
emistime_s *svemis_b(2:i1, 2:j1, 1:nsv))/(3600.*rhof(1)*dzf(1)*dx*dy*1e-6)
! MdB NOTE : Better way to do this? Problem is the broadcasting of 1D arrays
! rhof and dzf to svemis. For now, loop over k.

do k = 1,kemis
svp(2:i1, 2:j1, k, 1:nsv) = svp(2:i1, 2:j1, k, 1:nsv) + &
((1. - emistime_s)*svemis(2:i1, 2:j1, k, 1:nsv, 1) + &
emistime_s *svemis(2:i1, 2:j1, k, 1:nsv, 2))/(3600.*rhof(k)*dzf(k)*dx*dy*1e-6)
end do

! --------------------------------------------------------------------------
! Read emission files when neccesary, i.e. simulation reaches half hour mark
Expand All @@ -163,13 +206,13 @@ subroutine emission

if ( emistime_e < emistime_s ) then
! Transfer data from 'ahead-of-modeltime' field to 'past-modeltime' field
svemis_a = svemis_b
svemis(:,:,:,:,1) = svemis(:,:,:,:,2)

! Read new 'ahead-of-modeltime' emission field
if ( datex(4) == 23 ) then
call reademission(nextday(1), nextday(2), nextday(3), 0, svemis_b)
call reademission(nextday(1), nextday(2), nextday(3), 0, svemis(:,:,:,:,2))
else
call reademission( datex(1), datex(2), datex(3), datex(4)+1, svemis_b)
call reademission( datex(1), datex(2), datex(3), datex(4)+1, svemis(:,:,:,:,2))
endif
endif

Expand All @@ -184,7 +227,9 @@ subroutine exitemission

implicit none

deallocate(svemis_a, svemis_b)
if (.not. (l_emission)) return

deallocate(svemis)

end subroutine exitemission

Expand Down

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