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wrfchembc_CT_pkg.tar
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wrfchembc_CT_pkg/ 0002755 0055126 0072770 00000000000 13227734107 012632 5 ustar mpb186 abl wrfchembc_CT_pkg/main_bc_wrfchem_CT.f90 0000644 0055126 0072770 00000031504 13227731622 016643 0 ustar mpb186 abl program main_bc_wrfchem_CT
!<DESCRIPTION>
!
! Program wrfchembc.
!
! Original source of unknown date:
! Authors: Rainer Schmitz (University of Chile - Santiago, Chile)
! Steven Peckham (NOAA/ESRL/GSD - Boulder, CO)
!
! This code has been liberally adapted at Penn State to support the 'nesting' of
! a WRF domain within a global model, for the purpose of populating the boundaries
! (in wrfbdy) with a tracer from the global model.
! wrfchembc has versions specific to the global model being used for the problem.
! wrfchembc is executed once for each tracer to be populated.
! Code can also be used to initialize tracers with a constant value
! (options now are 300 ppm or 0 ppm, assuming the tracer is CO2)
! Use the 300 ppm option when the tracer will be used for surface fluxes
! with both source and sink values to avoid 'losing' tracer.
!
! Assumes existence of a wrfinput file and matching wrfbdy file populated with
! meteorological values from real.exe with both of these files having the
! tracers already defined. (It is possible to add the tracers to the
! wrfbdy file if they do not already exist, but this is not recommended.)
!
! This is the main program of WRF/Chem global boundary condition generation code, and is
! specific to the global model being used. The tracer for each execution is provided in
! the 'control' namelist. This code calls procedures in the module for the global model
! and in the separate module dealing with wrf procedures.
! Only the wrfbdy file tracers are updated in this code.
!
! The global file consists of a two-month concatenation of source data.
! Sourcing begins at the time-step within the 2-month file that corresponds
! to the beginning date of the wrfinput/wrfbdy files.
! It is up to the user to specify the correct 2-month global source file
! in the namelist control.
! For the TM5 and GEOS-Chem based files, the global file time increment (dt_g) is 3 hours.
! The wrfbdy time increment (dt_w) is 6 hours.
! Appropriate global file time incrments will be averaged to the wrfbdy time step.
! This code can accommodate either 00 UTC or 12 UTC start times.
!
! The options for global models at this time are:
! CarbonTracker (other TM5 based global models, such as those from Sourish Basu,
! will use this as a model, with some modifications)
! GEOS-Chem (a CMS-Flux system version, which will also be used as a model for
! files from Andrew Schuh, with some modifications)
! PCTM (a PCTM system version, which requires re-orienting PCTM files
! to surface-top before use)
! The wrfchembc package consists of this 'main' code plus:
! module_CT_lib.f90: but, use the module specific to global model
! currently either module_GEOS_lib.f90 or module_CT_lib.f90
! Most procedures in the global model module will be referred to as 'global'
! module_wrfchem_lib.f90: This contains wrf specific procedures and should not need to be modified.
! wrfchembc_namelist.input
! Makefile
!
! The namelist input data file for the program is structured as follows with examples:
! &control
!
! dir_wrf = '/data/wrfchem_data/' ! Directory containing the wrfinput and wrfbdy files
! fnb_wrf = 'wrfbdy_d01' ! WRF boundary condition data file
! fni_wrf = 'wrfinput_d01' ! WRF initial condition data file
!
! chem_bc_opt = 1 (or 2 or 3) ! 1=global model, 2=fixed constant, 3=zero
!
! specname = 'tracer_8' ! identification of the tracer to be updated in wrfbdy
! ! specname = 'tracer_n' where n is the tracer number
! ! tracer name must match the variable name in wrfbdy file
!
! ! The following are used only for chem_bc_opt = 1
! ! and may be omitted for options 2 and 3
! dir_global = '/data/global_data/' ! Global model data directory example
! fn_global = 'CT2016_2010-0607.nc' ! Global model data file name example
!
!
! /
!
! To compile, type "make". The make file is set-up to compile the code for a
! single processor using the Intel compiler (We assume you are using a
! linux cluster). The Makefile will need to be modified to work with other
! computer systems.
! Makefile in this directory is specific to PSU Meteorology Linux cluster use
!
! To execute the program, type
!
! wrfchembc_CT < wrfchembc_namelist.input
!
!</DESCRIPTION>
use netcdf
use module_wrfchem_lib
use module_CT_lib
implicit none
! parameters - modify to suit
integer, parameter :: maxsize = 100 ! for directories and filenames (and total length of dir + filename)
integer, parameter :: litsize = 20 ! for tracer names
integer, parameter :: dt_w = 6 ! the wrfbdy time increment in hours
integer, parameter :: dt_g = 3 ! the global model source time increment in hours
integer, parameter :: gincr = 8 ! number of global model time increments per day
! control variables (provided in namelist)
character(len=maxsize) :: dir_global, dir_wrf
character(len=maxsize) :: fnb_wrf, fni_wrf, fn_global
integer :: chem_bc_opt
character(len=litsize) :: specname
namelist /control/ dir_wrf, fnb_wrf, fni_wrf, &
chem_bc_opt, specname, dir_global, fn_global
! boundary conditions
real, allocatable :: bcxs(:,:,:)
real, allocatable :: bcxe(:,:,:)
real, allocatable :: bcys(:,:,:)
real, allocatable :: bcye(:,:,:)
! boundary condition tendencies
real, allocatable :: btxs(:,:,:)
real, allocatable :: btxe(:,:,:)
real, allocatable :: btys(:,:,:)
real, allocatable :: btye(:,:,:)
! saved boundary conditions (for computing tendencies)
real, allocatable :: bcxso(:,:,:)
real, allocatable :: bcxeo(:,:,:)
real, allocatable :: bcyso(:,:,:)
real, allocatable :: bcyeo(:,:,:)
! other public working variables
! it_bdy is the 'time step' in the wrfbdy output file
! it_glob is the 'time step' in the source global file (from file beginning)
integer :: it_bdy, it_glob
character(len=maxsize) :: fnb, fni, fng ! full names of files
print *,"******************************************************"
print *,"* PROGRAM: WRF/CHEM GLOBAL BOUNDARIES *"
print *,"* FOR WRF/CHEM VERSION 3.6.1 *"
print *,"* *"
print *,"* PLEASE REPORT ANY BUGS TO us at PSU *"
print *,"* *"
print *,"* [email protected] *"
print *,"* *"
print *,"******************************************************"
! read control variables
read( 5, nml=control )
! intialize module_wrfchem_lib
fnb = trim(dir_wrf)//adjustl(fnb_wrf) !wrfbdy
fni = trim(dir_wrf)//adjustl(fni_wrf) !wrfinput
write(*,*) 'call to init_wrfchem_lib'
! open the wrf files, retrieving dimension data
! (will create boundary variables for this tracer in wrfbdy for this tracer if necessary)
! ntime (returned) is the total number of time increments in the wrfbdy file
! Other returned variables will be used in the interpolation routines
call init_wrfchem_lib( fnb, fni, specname, ntime, ptop_wrf, znu, xlon, xlat )
! initialize global data module (if populating this tracer with global values)
! and compute horizontal and vertical interpolation coefficients
if(chem_bc_opt == 1) then
fng = trim(dir_global)//adjustl(fn_global)
call init_CT_lib( fng, ptop_wrf, xlon, xlat, znu, nx, ny, nz, day_start, hour_start, gincr )
print*,'call to initialize global model'
endif
! given the proper dimensions, allocate the boundary and tendency variables
allocate( bcxs(ny,nz,nw) )
allocate( bcxe(ny,nz,nw) )
allocate( bcys(nx,nz,nw) )
allocate( bcye(nx,nz,nw) )
allocate( btxs(ny,nz,nw) )
allocate( btxe(ny,nz,nw) )
allocate( btys(nx,nz,nw) )
allocate( btye(nx,nz,nw) )
! initialize tendencies as part of solution to problem
! encountered if only one time step in wrfbdy
btxs = 0.
btxe = 0.
btys = 0.
btye = 0.
! these only needed for chem_bc_opt 1
if(chem_bc_opt == 1) then
allocate( bcxso(ny,nz,nw) )
allocate( bcxeo(ny,nz,nw) )
allocate( bcyso(nx,nz,nw) )
allocate( bcyeo(nx,nz,nw) )
endif
!---------------------------------------------------------------------------------------------------
! do the time stepping
!---------------------------------------------------------------------------------------------------
! Variable 'it_bdy' represents the time increment in wrfbdy; 'it_glob' represents a time increment in
! the global model 2-month consolidated files
! Note that time stepping logic is dependent on the time resolution of the global model source
! relative to the wrfbdy time step.
do it_bdy = 1, ntime
write(*,*) 'Time step number of wrfbdy : ',it_bdy
if(chem_bc_opt == 1) then
if (it_bdy .eq. 1) then
it_glob = (day_start - 1)*gincr+1
else
it_glob = (day_start - 1)*gincr+(it_bdy-1)*2
endif
if (hour_start == 12) then
it_glob = it_glob + gincr/2
endif
write(*,*) 'Time increment of global model : ',it_glob
call global_interpolate4d( specname, bcxs, bcxe, bcys, &
bcye, nx, ny, nz, nw, it_bdy, it_glob, dt_w, dt_g )
endif
! use option 2 to avoid losing sink flux signals (subtract this value in postprocessing)
if(chem_bc_opt == 2) then
bcxs(:,:,:)=300.
bcxe(:,:,:)=300.
bcys(:,:,:)=300.
bcye(:,:,:)=300.
endif
! use option 3 only for tracers with positive definite flux
if(chem_bc_opt == 3) then
bcxs(:,:,:)=0.
bcxe(:,:,:)=0.
bcys(:,:,:)=0.
bcye(:,:,:)=0.
endif
! [PSU] tendencies for options 2 and 3 updated December 2015
! These were set at 1e-5 which is not nearly small enough,
! and introduced 0.036 ppm 'leaks' per tracer in waves on inflows on the walls,
! for an annual run, this amounts to approximately 0.1 ppm per tracer (option 2 and 3) in the interior.
! Tendencies changed to 0, which seems to be interpreted as approximately 1.e-15.
if (it_bdy >=2) then
! Compute Tendencies
if(chem_bc_opt == 1) then
btxs = ( bcxs - bcxso )/(float(dt_w)*3600.)
btxe = ( bcxe - bcxeo )/(float(dt_w)*3600.)
btys = ( bcys - bcyso )/(float(dt_w)*3600.)
btye = ( bcye - bcyeo )/(float(dt_w)*3600.)
endif
if(chem_bc_opt == 2) then
btxs = 0.
btxe = 0.
btys = 0.
btye = 0.
endif
if(chem_bc_opt == 3) then
btxs = 0.
btxe = 0.
btys = 0.
btye = 0.
endif
endif
! save current bc's for next tendency computationn
if (chem_bc_opt == 1) then
bcxso = bcxs
bcxeo = bcxe
bcyso = bcys
bcyeo = bcye
end if
write(*,*) 'Write the boundary conditions variables in wrfbdy file for time increment ', it_bdy
call wrfchem_write4d( specname, bcxs, bcxe, bcys, bcye, btxs, btxe, btys, btye, it_bdy )
end do
! exit from libs
call exit_wrfchem_lib( )
if(chem_bc_opt == 1) then
call exit_global_lib( )
endif
! deallocate memory space
if( allocated( znu ) ) deallocate( znu )
if( allocated( xlon ) ) deallocate( xlon )
if( allocated( xlat ) ) deallocate( xlat )
if( allocated( bcxs ) ) deallocate( bcxs )
if( allocated( bcxe ) ) deallocate( bcxe )
if( allocated( bcys ) ) deallocate( bcys )
if( allocated( bcye ) ) deallocate( bcye )
if( allocated( btxs ) ) deallocate( btxs )
if( allocated( btxe ) ) deallocate( btxe )
if( allocated( btys ) ) deallocate( btys )
if( allocated( btye ) ) deallocate( btye )
if( allocated( bcxso ) ) deallocate( bcxso )
if( allocated( bcxeo ) ) deallocate( bcxeo )
if( allocated( bcyso ) ) deallocate( bcyso )
if( allocated( bcyeo ) ) deallocate( bcyeo )
write(*,*) 'bc_wrfchem completed successfully'
end program main_bc_wrfchem_CT
wrfchembc_CT_pkg/module_CT_lib.f90 0000644 0055126 0072770 00000056405 13227731645 015667 0 ustar mpb186 abl
module module_CT_lib
use netcdf
implicit none
! include files
include 'netcdf.inc'
! public procedures
public :: init_CT_lib, global_interpolate4d, exit_global_lib
! private procedures
private :: hybrid_profile_TM5, handle_error_global
!private :: hybrid_profile_TM5
! public variables check this: these may be used only in this module, so private?
integer, public :: nlon, nlat, nlev ! 3-D data dimensions of global model grid
! variables for global model netCDF data
integer, private :: ncidg ! netCDF file ID
integer, private :: nstt(4), ncnt(4) ! start index and counter array
integer, private :: start_index ! index to surface pressure to be interpolated
integer, private :: ndate ! number of records in global consolidated file
integer, private :: ncalcomp ! used to interpret/report the time span of the global file
! variables used by interpolation, created in init subroutine and used in interpolate subroutine
! [PSU]: note that the only variables currently used are ix, jy, kz, ax, by,
! and the cz.. series (czxs, czxe, czys, czye) is used only if warranted (test it!)
integer, private, allocatable :: ix(:,:,:), jy(:,:,:), kz(:,:,:,:) ! indices used in interpolation
real, private, allocatable :: ax(:,:,:), by(:,:,:) ! horizontal weight coefficients
! use of the following is highly model dependent (not generally used with CarbonTracker)
real, private, allocatable :: czxs(:,:,:,:) ! vertical weight coef. west
real, private, allocatable :: czxe(:,:,:,:) ! vertical weight coef. east
real, private, allocatable :: czys(:,:,:,:) ! vertical weight coef. south
real, private, allocatable :: czye(:,:,:,:) ! vertical weight coef. north
! used only in interpolate routine, but allocated during initialization
real, private, allocatable :: globval(:,:,:), tmpval(:,:,:)
contains
!---------------------------------------------------------------------------------------------------
! initialize netcdf file
!---------------------------------------------------------------------------------------------------
subroutine init_CT_lib( global_fn, ptop_wrf, x2d, y2d, znu, nx, ny, nz, day_start, hour_start, gincr )
implicit none
! input arguments
integer, intent(in) :: nx, ny, nz !dimensions of wrf grid
character(len=*), intent(in) :: global_fn
real, intent(in) :: ptop_wrf !model top from wrf
real, intent(in) :: x2d(nx,ny), y2d(nx,ny) !xlong and xlat from wrf
real, intent(in) :: znu(nz) !vertical discretization from wrf
integer, intent(in) :: day_start
integer, intent(in) :: hour_start
integer, intent(in) :: gincr
! local arguments
integer :: status
integer :: dimid, varid, co2_varid
integer :: i, j, k, n
real, allocatable :: x1d(:), y1d(:) ! longitude and latitude vectors from global model
real, allocatable :: p_glob(:), p_wrf(:) ! temporary use vertical interpolation vectors
real, allocatable :: ps_glob(:,:), ps_wrf(:,:) ! global model surface pressure and interpolated to wrf grid
real, allocatable :: dateCT(:,:)
real, allocatable :: press_edges(:) ! used with hybrid_profile subroutine
write(*,*) 'open the input netCDF file ',global_fn
status = nf90_open( global_fn, nf90_nowrite, ncidg )
if( status /= nf90_noerr ) call handle_error_global( status )
write(*,*) 'get the longitude dimension length of Carbon Tracker'
status = nf90_inq_dimid( ncidg, 'lon', dimid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_inquire_dimension( ncidg, dimid, len=nlon )
if( status /= nf90_noerr ) call handle_error_global( status )
write(*,*) 'get the latitude dimension length of the Carbon Tracker'
status = nf90_inq_dimid( ncidg, 'lat', dimid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_inquire_dimension( ncidg, dimid, len=nlat )
if( status /= nf90_noerr ) call handle_error_global( status )
! get the vertical dimension length of the Carbon Tracker data
status = nf90_inq_dimid( ncidg, 'level', dimid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_inquire_dimension( ncidg, dimid, len=nlev )
if( status /= nf90_noerr ) call handle_error_global( status )
write(*,*) 'read longitudes'
allocate( x1d(nlon), y1d(nlat) )
status = nf90_inq_varid( ncidg, 'lon', varid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_get_var( ncidg, varid, x1d )
if( status /= nf90_noerr ) call handle_error_global( status )
! if the global model longitude vector is not -180 to +180,
! then fix it here to match the wrf protocol
status = nf90_inq_varid( ncidg, 'lat', varid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_get_var( ncidg, varid, y1d )
if( status /= nf90_noerr ) call handle_error_global( status )
write(*,*) 'read number of dates in the file'
status = nf90_inq_dimid( ncidg, 'date', varid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_inquire_dimension( ncidg, varid, len=ndate )
if( status /= nf90_noerr ) call handle_error_global( status )
write(*,*) 'read date format'
status = nf90_inq_dimid( ncidg, 'calendar_components', varid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_inquire_dimension( ncidg, varid, len=ncalcomp )
if( status /= nf90_noerr ) call handle_error_global( status )
allocate ( dateCT(ncalcomp,ndate) )
write(*,*) 'check time dimensions : ',ncalcomp, ndate
status = nf90_inq_varid( ncidg, 'date_components', varid )
if( status /= nf90_noerr ) call handle_error_global( status )
status = nf90_get_var( ncidg, varid, dateCT )
if( status /= nf90_noerr ) call handle_error_global( status )
! dates are used strictly for reporting content of consolidated file
write(*,*) 'Dates in CT file - Start : ',dateCT(:,1)
write(*,*) 'Dates in CT file - End : ',dateCT(:,ndate)
! issue warning (and fail) here if WRF domain is not entirely
! contained within global model domain
if ( ( minval(x2d) < x1d(1) ) .or. &
( maxval(x2d) > x1d(nlon) ) .or. &
( minval(y2d) < y1d(1) ) .or. &
( maxval(y2d) > y1d(nlat) ) ) then
write(*,*) ' ***DOMAIN MISMATCH*** '
call exit_global_lib( flag=2 )
endif
! allocate memory space to store interpolation coefficients
! ax, by, ix, jy, kz, and (sometimes) cz..
allocate( ax(0:1,nx,ny), by(0:1,nx,ny) )
allocate( ix(0:1,nx,ny), jy(0:1,nx,ny) )
allocate( kz(0:1,nx,ny,nz) )
allocate( czxs(0:1,nx,ny,nz), czxe(0:1,nx,ny,nz), czys(0:1,nx,ny,nz), czye(0:1,nx,ny,nz) )
! determine horizontal interpolation coefficients
write(*,*) 'x2d : ',x2d(1:10,23) !debugging
! all domain
do i = 1, nx
do j = 1, ny
do n = 1, nlon
if( x2d(i,j) < x1d(n) ) exit
end do
ix(0,i,j) = min( nlon-1, max(n-1,1) )
ix(1,i,j) = ix(0,i,j) + 1
ax(0,i,j) = ( x2d(i,j) - x1d(ix(0,i,j)) )/( x1d(ix(1,i,j)) - x1d(ix(0,i,j)) )
ax(1,i,j) = 1.0 - ax(0,i,j)
do n = 1, nlat
if( y2d(i,j) < y1d(n) ) exit
end do
jy(0,i,j) = min( nlat-1, max(n-1,1) )
jy(1,i,j) = jy(0,i,j) + 1
by(0,i,j) = ( y2d(i,j) - y1d(jy(0,i,j)) )/( y1d(jy(1,i,j)) - y1d(jy(0,i,j)) )
by(1,i,j) = 1.0 - by(0,i,j)
end do
end do
! either set start_index to 1 here (old protocol)
! or find the time in global model file corresponding to day and hour start in wrf:
! start_index = 1
! OR
start_index = (day_start -1) * gincr + 1
if (hour_start == 12) then
start_index = start_index + gincr/2
end if
write(*,*) 'using global surface pressure from time step ', start_index
write(*,*) 'read surface pressure and interpolate ...'
allocate( ps_glob(nlon,nlat), ps_wrf(nx,ny) )
status = nf90_inq_varid( ncidg, 'pressure', varid )
if( status /= nf90_noerr ) call handle_error_global( status )
nstt(1:4) = (/ 1, 1, 1, start_index /)
ncnt(1:4) = (/ nlon, nlat, 1 , 1/)
status = nf90_get_var( ncidg, varid, ps_glob, nstt(1:4), ncnt(1:4) )
if( status /= nf90_noerr ) call handle_error_global( status )
!for clarification, ps_glob is CT surface pressure and
! ps_wrf is CT surface pressure interpolated to the WRF grid
! vertical level mapping is done with pressure columns in units of Pa
! both WRF and CT pressure units are in Pa
write(*,*) 'Test horizontal interpolation coefficients : ',ix(0,23,23),ax(0,23,23),by(0,23,23),jy(0,23,23)
do j = 1, ny
do i = 1, nx
ps_wrf(i,j) = (ps_glob(ix(0,i,j),jy(0,i,j))*ax(1,i,j)*by(1,i,j) + &
ps_glob(ix(0,i,j),jy(1,i,j))*ax(1,i,j)*by(0,i,j) + &
ps_glob(ix(1,i,j),jy(0,i,j))*ax(0,i,j)*by(1,i,j) + &
ps_glob(ix(1,i,j),jy(1,i,j))*ax(0,i,j)*by(0,i,j))
enddo
enddo
write(*,*) 'Examples of interpolated surface pressure : ',ps_wrf(1:5,2)
write(*,*) 'vertical interpolation coefs'
allocate( p_glob(nlev), p_wrf(nz) )
p_glob(:)=0.
p_wrf(:)=0.
allocate( press_edges(nlev) ) !minus the topmost level
press_edges(:) = 0.
! At a minimum, only kz[0,i,j,k] is used in the interpolate subroutine
! NO horizontal interpolation of co2 field
! Computation of kz[0:1,i,j,k] and the corresponding czxs,czxe,czys,czye vertical
! interpolation coefficients done here so that they may be used in interpolate subroutine
! (if needed)
!west
i = 1
do j = 1, ny
! The call to hybrid_profile_TM5 returns a column of pressures on the edges of
! global model levels based on the interpolated surface pressure ps_wrf(i,j).
! The assignment of source global model levels to receiving wrf model levels
! is determined by the pressure edges between which the wrf level mid-point
! pressure falls. This determination is done in log space with the respective
! pressure columns in units of Pa.
call hybrid_profile_TM5( ps_wrf(i,j), nlev, press_edges )
p_glob(:) = log( press_edges(:) )
p_wrf(:) = log( znu(:)*ps_wrf(i,j) + (1.0-znu(:))*ptop_wrf )
do k = 1, nz
do n = 1, nlev
if( p_wrf(k) > p_glob(n) ) exit
enddo
kz(0,i,j,k) = min( nlev-1, max(n-1,1) )
kz(1,i,j,k) = kz(0,i,j,k) + 1
czxs(0,i,j,k) = ( p_wrf(k) - p_glob(kz(0,i,j,k)) )/( p_glob(kz(1,i,j,k)) - p_glob(kz(0,i,j,k)) )
czxs(1,i,j,k) = 1.0 - czxs(0,i,j,k)
enddo
end do
! more debugging displays
write(*,*) 'interpolated surface pressure: ',ps_wrf(1,ny)
write(*,*) 'pressure WRF : ',p_wrf(:)
write(*,*) 'pressure CT : ',p_glob(:)
write(*,*) 'kz levels : ',kz(0,1,ny,:)
! east
i = nx
do j = 1, ny
call hybrid_profile_TM5( ps_wrf(i,j), nlev, press_edges )
p_glob(:) = log( press_edges(:) )
p_wrf(:) = log( znu(:)*ps_wrf(i,j) + (1.0-znu(:))*ptop_wrf )
do k = 1, nz
do n = 1, nlev
if( p_wrf(k) > p_glob(n) ) exit
enddo
kz(0,i,j,k) = min( nlev-1, max(n-1,1) )
kz(1,i,j,k) = kz(0,i,j,k) + 1
czxe(0,i,j,k) = ( p_wrf(k) - p_glob(kz(0,i,j,k)) )/( p_glob(kz(1,i,j,k)) - p_glob(kz(0,i,j,k)) )
czxe(1,i,j,k) = 1.0 - czxe(0,i,j,k)
enddo
enddo
! north
j = ny
do i = 1, nx
call hybrid_profile_TM5( ps_wrf(i,j), nlev, press_edges )
p_glob(:) = log( press_edges(:) )
p_wrf(:) = log( znu(:)*ps_wrf(i,j) + (1.0-znu(:))*ptop_wrf )
do k = 1, nz
do n = 1, nlev
if( p_wrf(k) > p_glob(n) ) exit
enddo
kz(0,i,j,k) = min( nlev-1, max(n-1,1) )
kz(1,i,j,k) = kz(0,i,j,k) + 1
czye(0,i,j,k) = ( p_wrf(k) - p_glob(kz(0,i,j,k)) )/( p_glob(kz(1,i,j,k)) - p_glob(kz(0,i,j,k)) )
czye(1,i,j,k) = 1.0 - czye(0,i,j,k)
enddo
enddo
! south
j = 1
do i = 1, nx
call hybrid_profile_TM5( ps_wrf(i,j), nlev, press_edges )
p_glob(:) = log( press_edges(:) )
p_wrf(:) = log( znu(:)*ps_wrf(i,j) + (1.0-znu(:))*ptop_wrf )
do k = 1, nz
do n = 1, nlev
if( p_wrf(k) > p_glob(n) ) exit
enddo
kz(0,i,j,k) = min( nlev-1, max(n-1,1) )
kz(1,i,j,k) = kz(0,i,j,k) + 1
czys(0,i,j,k) = ( p_wrf(k) - p_glob(kz(0,i,j,k)) )/( p_glob(kz(1,i,j,k)) - p_glob(kz(0,i,j,k)) )
czys(1,i,j,k) = 1.0 - czys(0,i,j,k)
enddo
enddo
write(*,*) 'release memory space not used'
deallocate( dateCT, x1d, y1d, ps_glob, ps_wrf, p_glob, p_wrf, press_edges )
write(*,*) 'allocate memory space for reading'
allocate( globval(nlon,nlat,nlev), tmpval(nlon,nlat,nlev) )
write(*,*) 'End of subroutine init_CT_lib'
end subroutine init_CT_lib
!---------------------------------------------------------------------------------------------------
! interpolate four-dimensional field ...
!---------------------------------------------------------------------------------------------------
subroutine global_interpolate4d( wrfspn, wrfxs, wrfxe, wrfys, wrfye, nx, ny, nz, nw, itb, itg, dtw, dtg )
use netcdf
implicit none
! input arguments
integer, intent(in) :: nx, ny, nz, nw ! dimensions
integer, intent(in) :: itb, itg ! aka it_bdy and it_glob in main
integer, intent(in) :: dtw, dtg ! aka dt_w and dt_g in main
character(len=*), intent(in) :: wrfspn ! wrfchem species' name
! output arguments
real, intent(inout) :: wrfxs(ny,nz,nw) ! wrfchem vmr(ppm)
real, intent(inout) :: wrfxe(ny,nz,nw) ! wrfchem vmr(ppm)
real, intent(inout) :: wrfys(nx,nz,nw) ! wrfchem vmr(ppm)
real, intent(inout) :: wrfye(nx,nz,nw) ! wrfchem vmr(ppm)
! local arguments
integer :: status, co2_varid, new_itg, incrtoavg
character(20) :: globspn ! variable name for co2 in the global file
integer :: i, j, k, m
! not exactly sure why this is done (initialize to something/anything?)
wrfxs(:,:,:) = 385.
wrfxe(:,:,:) = 385.
wrfys(:,:,:) = 385.
wrfye(:,:,:) = 385.
! read CarbonTracker CO2 mole fractions
! 'it_bdy' (wrfbdy time increment) and 'it_glob' (increment in global file) in main_bc_wrfchem
! become known as 'itb' and 'itg' here in the global module
globval(:,:,:) = 0.
globspn = 'co2'
! get the varid of co2 in the global model
status = nf90_inq_varid( ncidg, globspn, co2_varid )
if( status /= nf90_noerr ) call handle_error_global( status )
if (itb .eq. 1) then !first 6-hr wrfbdy from 3 hours (1 increment) of global model, thereafter it is 2 increments
incrtoavg = (dtw/dtg)/2
else
incrtoavg = dtw/dtg
endif
do m = 1, incrtoavg
tmpval(:,:,:)=0.
new_itg = itg + m -1
write(*,*) 'Read and interpolate Carbon Tracker CO2 : ', trim(globspn), new_itg
nstt(1:4) = (/ 1, 1, 1, new_itg /)
ncnt(1:4) = (/ nlon, nlat, nlev, 1 /)
status = nf90_get_var( ncidg, co2_varid, tmpval(:,:,:), nstt(:), ncnt(:) )
if( status /= nf90_noerr ) call handle_error_global( status )
globval(:,:,:) = globval(:,:,:) + tmpval(:,:,:)
!debugging
!write(*,*) 'Some value just after reading the Carbon Tracker CO2 : ', globval(23:26,23,1)
enddo
globval(:,:,:) = globval(:,:,:)/float(incrtoavg) !average three or six hours of global model
write(*,*) 'Examples final :: ', globval(23,23,1),globval(3,4,5)
! assign co2 by level in the wrf boundary grid cells
! Note that only ix(0,i,j), jy(0,i,j), are used here horizontally, and kz(0,i,j,k) vertically
! If considering using the vertical interpolation coefficients cz.., test to see if this is a good choice.
! (found not to be optimal for CarbonTracker)
! If cz coefficients are used, uncomment the first 2 lines, and comment out the following line for
! each of the cardinal directions
! west
i= 1
do k = 1, nz
do j = 1, ny
! if using the cz...vertical interpolation coefficients, use these two lines:
!wrfxs(j,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))*czxs(1,i,j,k) + &
! globval(ix(0,i,j),jy(0,i,j),kz(1,i,j,k))*czxs(0,i,j,k)
! OR if not using the vertical interpolation coefficients (the usual case), use this line:
wrfxs(j,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))
enddo
enddo
! east
i = nx
do k = 1, nz
do j = 1, ny
!wrfxe(j,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))*czxe(1,i,j,k) + &
! globval(ix(0,i,j),jy(0,i,j),kz(1,i,j,k))*czxe(0,i,j,k)
wrfxe(j,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))
enddo
enddo
! north
j = ny
do k = 1, nz
do i = 1, nx
!wrfye(i,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))*czye(1,i,j,k) + &
! globval(ix(0,i,j),jy(0,i,j),kz(1,i,j,k))*czye(0,i,j,k)
wrfye(i,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))
enddo
enddo
! south
j = 1
do k = 1, nz
do i = 1, nx
!wrfys(i,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))*czys(1,i,j,k) + &
! globval(ix(0,i,j),jy(0,i,j),kz(1,i,j,k))*czys(0,i,j,k)
wrfys(i,k,:) = globval(ix(0,i,j),jy(0,i,j),kz(0,i,j,k))
enddo
enddo
end subroutine global_interpolate4d
!---------------------------------------------------------------------------------------------------
! hybrid_profile_TM5 - compute level edges of pressure column given surface pressure
!---------------------------------------------------------------------------------------------------
subroutine hybrid_profile_TM5( psurf, nlevel, pcolumn_edges )
! Given a surface pressure (input) and the at and bt coefficients for the TM5 global model
! generate a pressure column on TM5 levels, from surface to model top.
! Return the pressures at nlevel boundary edges (omitting top edge).
! Use in the calling program stops well below the top edge.
! algorithm: P = at + bt*psurf
implicit none
!input arguments:
real, intent(in) :: psurf
integer, intent(in) :: nlevel
real, dimension(nlevel),intent(inout) :: pcolumn_edges
!local variables:
integer :: kk
integer, parameter :: boundary = 26
real, parameter, dimension(boundary) :: at = &
(/0.0000000e+00, 7.3677430e+00, 2.1039389e+02, 8.5536176e+02, &
2.0637798e+03, 3.8509133e+03, 6.1443149e+03, 8.8023564e+03, &
1.1632759e+04, 1.4411124e+04, 1.6899469e+04, 1.8864750e+04, &
2.0097402e+04, 2.0429863e+04, 1.9755109e+04, 1.8045184e+04, &
1.5379806e+04, 1.2077446e+04, 8.7650537e+03, 6.0180195e+03, &
3.9602915e+03, 1.6806403e+03, 7.1321808e+02, 2.9849579e+02, &
9.5636963e+01, 0.0000000e+00/)
real, parameter, dimension(boundary) :: bt = &
(/1.0000000e+00, 9.9401945e-01, 9.7966272e-01, 9.5182151e-01, &
9.0788388e-01, 8.4737492e-01, 7.7159661e-01, 6.8326861e-01, &
5.8616841e-01, 4.8477158e-01, 3.8389215e-01, 2.8832296e-01, &
2.0247590e-01, 1.3002251e-01, 7.3533830e-02, 3.4121160e-02, &
1.1142910e-02, 1.8151600e-03, 7.5820000e-05, 0.0000000e+00, &
0.0000000e+00, 0.0000000e+00, 0.0000000e+00, 0.0000000e+00, &
0.0000000e+00, 0.0000000e+00/)
! skipping the upper edge (which is at 0.0):
do kk = 1, nlevel
pcolumn_edges(kk) = at(kk) + bt(kk) * psurf
end do
end subroutine hybrid_profile_TM5
!---------------------------------------------------------------------------------------------------
! handle errors produced by calling netCDF functions
!---------------------------------------------------------------------------------------------------
subroutine handle_error_global( status )
implicit none
! input arguments :
integer, intent(in) :: status
! print the error information from processing NETcdf file
print*, nf90_strerror( status )
! exit from the global lib
call exit_global_lib( flag=1 )
end subroutine handle_error_global
!---------------------------------------------------------------------------------------------------
! exit from module_CT_lib
!---------------------------------------------------------------------------------------------------
subroutine exit_global_lib( flag )
! input arguments
integer, optional, intent(in) :: flag
! local arguments
integer :: status
! release memory space
if( allocated( ix) ) deallocate( ix )
if( allocated( jy) ) deallocate( jy )
if( allocated( kz) ) deallocate( kz )
if( allocated( ax) ) deallocate( ax )
if( allocated( by) ) deallocate( by )
if( allocated(czxs) ) deallocate( czxs )
if( allocated(czxe) ) deallocate( czxe )
if( allocated(czys) ) deallocate( czys )
if( allocated(czye) ) deallocate( czye )
if( allocated( globval) ) deallocate( globval )
if( allocated( tmpval) ) deallocate( tmpval )
! close netCDF file
if( ncidg /= 0 ) status = nf90_close( ncidg )
! output information
if( present(flag) ) then
select case( flag )
case( 1 ); print*, 'fail to process netCDF file...'
case( 2 ); print*, 'fail for domain mismatch...'
case default; print*, 'unknown error(s) occurred ...'
endselect
stop ' in module_CT_lib ...'
else
print*, 'successfully exit from module_CT_lib ...'
endif
end subroutine exit_global_lib
end module module_CT_lib
wrfchembc_CT_pkg/module_wrfchem_lib.f90 0000644 0055126 0072770 00000053715 13227731670 017013 0 ustar mpb186 abl
module module_wrfchem_lib
use netcdf
implicit none
! include files
include 'netcdf.inc'
! public procedures
public :: init_wrfchem_lib, exit_wrfchem_lib
public :: wrfchem_readscalar, wrfchem_read2d, wrfchem_read3d
public :: wrfchem_write4d
! private procedures
private :: handle_error, define_variable
! variables defined here and used elsewhere (day_start and hour_start)
integer, public :: nx, ny, nz, nw, ntime ! data dimension lengths
integer, public :: year_start, month_start, day_start
integer, public :: hour_start, minute_start, second_start
real, public :: ptop_wrf
real, public, allocatable :: znu(:)
real, public, allocatable :: xlon(:,:), xlat(:,:)
! variables for reading netCDF data in this module
integer :: ncid, ncidi ! netCDF IDs for wrfbdy and wrfinput
integer, private :: nstt(4), ncnt(4) ! start index and counter array
integer, private :: nscalar, nstring ! data dimension length
contains
!---------------------------------------------------------------------------------------------------
! initialize netcdf file
!---------------------------------------------------------------------------------------------------
subroutine init_wrfchem_lib( wrfchem_bdy_fn, wrfchem_input_fn, specname, ntime, ptop_wrf, znu, xlon, xlat )
implicit none
! input arguments
integer, intent(out) :: ntime
character(len=*), intent(in) :: wrfchem_bdy_fn, wrfchem_input_fn
character(len=*), intent(in) :: specname
real, intent(out) :: ptop_wrf
real, allocatable, intent(out) :: znu(:)
real, allocatable, intent(out) :: xlon(:,:), xlat(:,:)
! local arguments NOTE: any changes here? ;like character len's?
integer :: status
integer :: xdimid, ydimid, zdimid, wdimid, tdimid, sdimid
integer :: ndims, dimids(4)
integer :: vid
integer :: ip, i, n
character(len=100) :: dtstrings, dtstringe !, dtstringf ! used to parse wrf date(s)
! these are used only if need to define variables in wrfbdy file
character(len=100) :: spec1
character(len=3) :: order
write(*,*) 'init_wrfchem_lib: specname ',specname