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!> |
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!! |
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!! @brief Module MO_SIMPLE_PLUMES: provides anthropogenic aerosol optical properties as a function of lat, lon |
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!! height, time, and wavelength |
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!! |
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!! @remarks |
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!! |
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!! @author Bjorn Stevens, Stephanie Fiedler and Karsten Peters MPI-Met, Hamburg (v1 release 2016-11-10) |
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!! |
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!! @change-log: |
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!! - 2016-12-05: beta release (BS, SF and KP, MPI-Met) |
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!! - 2016-09-28: revised representation of Twomey effect (SF, MPI-Met) |
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!! - 2015-09-28: bug fixes (SF, MPI-Met) |
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!! - 2016-10-12: revised maximum longitudinal extent of European plume (KP, SF, MPI-Met) |
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!! $ID: n/a$ |
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!! |
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!! @par Origin |
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!! Based on code originally developed at the MPI-Met by Karsten Peters, Bjorn Stevens, Stephanie Fiedler |
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!! and Stefan Kinne with input from Thorsten Mauritsen and Robert Pincus |
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!! |
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!! @par Copyright |
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!! |
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! |
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MODULE MO_SIMPLE_PLUMES |
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USE netcdf |
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IMPLICIT NONE |
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INTEGER, PARAMETER :: & |
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nplumes = 9 ,& !< Number of plumes |
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nfeatures = 2 ,& !< Number of features per plume |
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ntimes = 52 ,& !< Number of times resolved per year (52 => weekly resolution) |
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nyears = 251 !< Number of years of available forcing |
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LOGICAL, SAVE :: & |
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sp_initialized = .FALSE. !< parameter determining whether input needs to be read |
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!$OMP THREADPRIVATE(sp_initialized) |
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REAL :: & |
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plume_lat (nplumes) ,& !< latitude of plume center (AOD maximum) |
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plume_lon (nplumes) ,& !< longitude of plume center (AOD maximum) |
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beta_a (nplumes) ,& !< parameter a for beta function vertical profile |
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beta_b (nplumes) ,& !< parameter b for beta function vertical profile |
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aod_spmx (nplumes) ,& !< anthropogenic AOD maximum at 550 for plumes |
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aod_fmbg (nplumes) ,& !< anthropogenic AOD at 550 for fine-mode natural background (idealized to mimic Twomey effect) |
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asy550 (nplumes) ,& !< asymmetry parameter at 550nm for plume |
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ssa550 (nplumes) ,& !< single scattering albedo at 550nm for plume |
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angstrom (nplumes) ,& !< Angstrom parameter for plume |
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sig_lon_E (nfeatures,nplumes) ,& !< Eastward extent of plume feature |
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sig_lon_W (nfeatures,nplumes) ,& !< Westward extent of plume feature |
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sig_lat_E (nfeatures,nplumes) ,& !< Southward extent of plume feature |
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sig_lat_W (nfeatures,nplumes) ,& !< Northward extent of plume feature |
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theta (nfeatures,nplumes) ,& !< Rotation angle of plume feature |
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ftr_weight (nfeatures,nplumes) ,& !< Feature weights |
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time_weight (nfeatures,nplumes) ,& !< Time weights |
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time_weight_bg (nfeatures,nplumes) ,& !< as time_weight but for natural background in Twomey effect |
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year_weight (nyears,nplumes) ,& !< Yearly weight for plume |
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ann_cycle (nfeatures,ntimes,nplumes) !< annual cycle for plume feature |
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!$OMP THREADPRIVATE(plume_lat,plume_lon,beta_a,beta_b,aod_spmx,aod_fmbg,asy550,ssa550,angstrom) |
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!$OMP THREADPRIVATE(sig_lon_E,sig_lon_W,sig_lat_E,sig_lat_W,theta,ftr_weight,year_weight,ann_cycle) |
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PUBLIC sp_aop_profile |
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CONTAINS |
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! |
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! ------------------------------------------------------------------------------------------------------------------------ |
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! SP_SETUP: This subroutine should be called at initialization to read the netcdf data that describes the simple plume |
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! climatology. The information needs to be either read by each processor or distributed to processors. |
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! |
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SUBROUTINE sp_setup |
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! |
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USE mod_phys_lmdz_mpi_data, ONLY: is_mpi_root |
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USE mod_phys_lmdz_omp_data, ONLY: is_omp_root |
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USE mod_phys_lmdz_transfert_para, ONLY: bcast |
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! |
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! ---------- |
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! |
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INTEGER :: iret, ncid, DimID, VarID, xdmy |
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CHARACTER (len = 50) :: modname = 'mo_simple_plumes.sp_setup' |
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CHARACTER (len = 80) :: abort_message |
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! |
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! ---------- |
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!--only one processor reads the input data |
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IF (is_mpi_root.AND.is_omp_root) THEN |
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! |
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iret = nf90_open("MACv2.0-SP_v1.nc", NF90_NOWRITE, ncid) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF File not opened' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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! |
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! read dimensions and make sure file conforms to expected size |
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! |
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iret = nf90_inq_dimid(ncid, "plume_number" , DimId) |
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iret = nf90_inquire_dimension(ncid, DimId, len = xdmy) |
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IF (xdmy /= nplumes) THEN |
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abort_message='NetCDF improperly dimensioned -- plume_number' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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! |
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iret = nf90_inq_dimid(ncid, "plume_feature", DimId) |
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iret = nf90_inquire_dimension(ncid, DimId, len = xdmy) |
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IF (xdmy /= nfeatures) THEN |
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abort_message='NetCDF improperly dimensioned -- plume_feature' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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! |
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iret = nf90_inq_dimid(ncid, "year_fr" , DimId) |
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iret = nf90_inquire_dimension(ncid, DimID, len = xdmy) |
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IF (xdmy /= ntimes) THEN |
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abort_message='NetCDF improperly dimensioned -- year_fr' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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! |
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iret = nf90_inq_dimid(ncid, "years" , DimId) |
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iret = nf90_inquire_dimension(ncid, DimID, len = xdmy) |
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IF (xdmy /= nyears) THEN |
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abort_message='NetCDF improperly dimensioned -- years' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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! |
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! read variables that define the simple plume climatology |
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! |
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iret = nf90_inq_varid(ncid, "plume_lat", VarId) |
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iret = nf90_get_var(ncid, VarID, plume_lat(:), start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading plume_lat' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "plume_lon", VarId) |
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iret = nf90_get_var(ncid, VarID, plume_lon(:), start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading plume_lon' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "beta_a" , VarId) |
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iret = nf90_get_var(ncid, VarID, beta_a(:) , start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading beta_a' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "beta_b" , VarId) |
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iret = nf90_get_var(ncid, VarID, beta_b(:) , start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading beta_b' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "aod_spmx" , VarId) |
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iret = nf90_get_var(ncid, VarID, aod_spmx(:) , start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading aod_spmx' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "aod_fmbg" , VarId) |
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iret = nf90_get_var(ncid, VarID, aod_fmbg(:) , start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading aod_fmbg' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "ssa550" , VarId) |
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iret = nf90_get_var(ncid, VarID, ssa550(:) , start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading ssa550' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "asy550" , VarId) |
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iret = nf90_get_var(ncid, VarID, asy550(:) , start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading asy550' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "angstrom" , VarId) |
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iret = nf90_get_var(ncid, VarID, angstrom(:), start=(/1/),count=(/nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading angstrom' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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! |
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iret = nf90_inq_varid(ncid, "sig_lat_W" , VarId) |
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iret = nf90_get_var(ncid, VarID, sig_lat_W(:,:) , start=(/1,1/),count=(/nfeatures,nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading sig_lat_W' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "sig_lat_E" , VarId) |
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iret = nf90_get_var(ncid, VarID, sig_lat_E(:,:) , start=(/1,1/),count=(/nfeatures,nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
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abort_message='NetCDF Error reading sig_lat_E' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
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iret = nf90_inq_varid(ncid, "sig_lon_E" , VarId) |
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iret = nf90_get_var(ncid, VarID, sig_lon_E(:,:) , start=(/1,1/),count=(/nfeatures,nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
196 |
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abort_message='NetCDF Error reading sig_lon_E' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
199 |
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iret = nf90_inq_varid(ncid, "sig_lon_W" , VarId) |
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iret = nf90_get_var(ncid, VarID, sig_lon_W(:,:) , start=(/1,1/),count=(/nfeatures,nplumes/)) |
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IF (iret /= NF90_NOERR) THEN |
202 |
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abort_message='NetCDF Error reading sig_lon_W' |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
205 |
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iret = nf90_inq_varid(ncid, "theta" , VarId) |
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iret = nf90_get_var(ncid, VarID, theta(:,:) , start=(/1,1/),count=(/nfeatures,nplumes/)) |
207 |
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IF (iret /= NF90_NOERR) THEN |
208 |
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abort_message='NetCDF Error reading theta' |
209 |
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CALL abort_physic(modname,abort_message,1) |
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ENDIF |
211 |
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iret = nf90_inq_varid(ncid, "ftr_weight" , VarId) |
212 |
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iret = nf90_get_var(ncid, VarID, ftr_weight(:,:) , start=(/1,1/),count=(/nfeatures,nplumes/)) |
213 |
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IF (iret /= NF90_NOERR) THEN |
214 |
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abort_message='NetCDF Error reading plume_lat' |
215 |
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CALL abort_physic(modname,abort_message,1) |
216 |
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ENDIF |
217 |
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iret = nf90_inq_varid(ncid, "year_weight" , VarId) |
218 |
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iret = nf90_get_var(ncid, VarID, year_weight(:,:) , start=(/1,1/),count=(/nyears,nplumes /)) |
219 |
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IF (iret /= NF90_NOERR) THEN |
220 |
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abort_message='NetCDF Error reading year_weight' |
221 |
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CALL abort_physic(modname,abort_message,1) |
222 |
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ENDIF |
223 |
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iret = nf90_inq_varid(ncid, "ann_cycle" , VarId) |
224 |
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iret = nf90_get_var(ncid, VarID, ann_cycle(:,:,:) , start=(/1,1,1/),count=(/nfeatures,ntimes,nplumes/)) |
225 |
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IF (iret /= NF90_NOERR) THEN |
226 |
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abort_message='NetCDF Error reading ann_cycle' |
227 |
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CALL abort_physic(modname,abort_message,1) |
228 |
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ENDIF |
229 |
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! |
230 |
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iret = nf90_close(ncid) |
231 |
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! |
232 |
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ENDIF !--root processor |
233 |
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! |
234 |
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CALL bcast(plume_lat) |
235 |
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CALL bcast(plume_lon) |
236 |
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CALL bcast(beta_a) |
237 |
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CALL bcast(beta_b) |
238 |
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CALL bcast(aod_spmx) |
239 |
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CALL bcast(aod_fmbg) |
240 |
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CALL bcast(asy550) |
241 |
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CALL bcast(ssa550) |
242 |
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CALL bcast(angstrom) |
243 |
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CALL bcast(sig_lon_E) |
244 |
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CALL bcast(sig_lon_W) |
245 |
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CALL bcast(sig_lat_E) |
246 |
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CALL bcast(sig_lat_W) |
247 |
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CALL bcast(theta) |
248 |
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CALL bcast(ftr_weight) |
249 |
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✗ |
CALL bcast(year_weight) |
250 |
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✗ |
CALL bcast(ann_cycle) |
251 |
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! |
252 |
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✗ |
sp_initialized = .TRUE. |
253 |
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! |
254 |
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✗ |
RETURN |
255 |
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! |
256 |
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END SUBROUTINE sp_setup |
257 |
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! |
258 |
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! ------------------------------------------------------------------------------------------------------------------------ |
259 |
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! SET_TIME_WEIGHT: The simple plume model assumes that meteorology constrains plume shape and that only source strength |
260 |
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! influences the amplitude of a plume associated with a given source region. This routine retrieves the temporal weights |
261 |
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! for the plumes. Each plume feature has its own temporal weights which varies yearly. The annual cycle is indexed by |
262 |
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! week in the year and superimposed on the yearly mean value of the weight. |
263 |
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! |
264 |
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✗ |
SUBROUTINE set_time_weight(year_fr) |
265 |
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! |
266 |
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! ---------- |
267 |
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! |
268 |
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REAL, INTENT(IN) :: & |
269 |
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year_fr !< Fractional Year (1850.0 - 2100.99) |
270 |
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271 |
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INTEGER :: & |
272 |
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iyear ,& !< Integer year values between 1 and 156 (1850-2100) |
273 |
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iweek ,& !< Integer index (between 1 and ntimes); for ntimes=52 this corresponds to weeks (roughly) |
274 |
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iplume ! plume number |
275 |
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! |
276 |
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! ---------- |
277 |
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! |
278 |
|
✗ |
iyear = FLOOR(year_fr) - 1849 |
279 |
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✗ |
iweek = FLOOR((year_fr - FLOOR(year_fr)) * ntimes) + 1 |
280 |
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281 |
|
✗ |
IF ((iweek > ntimes) .OR. (iweek < 1) .OR. (iyear > nyears) .OR. (iyear < 1)) THEN |
282 |
|
✗ |
CALL abort_physic('set_time_weight','Time out of bounds') |
283 |
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ENDIF |
284 |
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285 |
|
✗ |
DO iplume=1,nplumes |
286 |
|
✗ |
time_weight(1,iplume) = year_weight(iyear,iplume) * ann_cycle(1,iweek,iplume) |
287 |
|
✗ |
time_weight(2,iplume) = year_weight(iyear,iplume) * ann_cycle(2,iweek,iplume) |
288 |
|
✗ |
time_weight_bg(1,iplume) = ann_cycle(1,iweek,iplume) |
289 |
|
✗ |
time_weight_bg(2,iplume) = ann_cycle(2,iweek,iplume) |
290 |
|
|
END DO |
291 |
|
|
|
292 |
|
✗ |
RETURN |
293 |
|
|
END SUBROUTINE set_time_weight |
294 |
|
|
! |
295 |
|
|
! ------------------------------------------------------------------------------------------------------------------------ |
296 |
|
|
! SP_AOP_PROFILE: This subroutine calculates the simple plume aerosol and cloud active optical properties based on the |
297 |
|
|
! the simple plume fit to the MPI Aerosol Climatology (Version 2). It sums over nplumes to provide a profile of aerosol |
298 |
|
|
! optical properties on a host models vertical grid. |
299 |
|
|
! |
300 |
|
✗ |
SUBROUTINE sp_aop_profile ( & |
301 |
|
✗ |
nlevels ,ncol ,lambda ,oro ,lon ,lat , & |
302 |
|
✗ |
year_fr ,z ,dz ,dNovrN ,aod_prof ,ssa_prof , & |
303 |
|
|
asy_prof ) |
304 |
|
|
! |
305 |
|
|
! ---------- |
306 |
|
|
! |
307 |
|
|
INTEGER, INTENT(IN) :: & |
308 |
|
|
nlevels, & !< number of levels |
309 |
|
|
ncol !< number of columns |
310 |
|
|
|
311 |
|
|
REAL, INTENT(IN) :: & |
312 |
|
|
lambda, & !< wavelength |
313 |
|
|
year_fr, & !< Fractional Year (1903.0 is the 0Z on the first of January 1903, Gregorian) |
314 |
|
|
oro(ncol), & !< orographic height (m) |
315 |
|
|
lon(ncol), & !< longitude |
316 |
|
|
lat(ncol), & !< latitude |
317 |
|
|
z (ncol,nlevels), & !< height above sea-level (m) |
318 |
|
|
dz(ncol,nlevels) !< level thickness (difference between half levels) (m) |
319 |
|
|
|
320 |
|
|
REAL, INTENT(OUT) :: & |
321 |
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dNovrN(ncol) , & !< anthropogenic increase in cloud drop number concentration (factor) |
322 |
|
|
aod_prof(ncol,nlevels) , & !< profile of aerosol optical depth |
323 |
|
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ssa_prof(ncol,nlevels) , & !< profile of single scattering albedo |
324 |
|
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asy_prof(ncol,nlevels) !< profile of asymmetry parameter |
325 |
|
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|
326 |
|
|
INTEGER :: iplume, icol, k |
327 |
|
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|
328 |
|
|
REAL :: & |
329 |
|
✗ |
eta(ncol,nlevels), & !< normalized height (by 15 km) |
330 |
|
✗ |
z_beta(ncol,nlevels), & !< profile for scaling column optical depth |
331 |
|
✗ |
prof(ncol,nlevels), & !< scaled profile (by beta function) |
332 |
|
✗ |
beta_sum(ncol), & !< vertical sum of beta function |
333 |
|
✗ |
ssa(ncol), & !< single scattering albedo |
334 |
|
✗ |
asy(ncol), & !< asymmetry parameter |
335 |
|
✗ |
cw_an(ncol), & !< column weight for simple plume (anthropogenic) AOD at 550 nm |
336 |
|
✗ |
cw_bg(ncol), & !< column weight for fine-mode natural background AOD at 550 nm |
337 |
|
✗ |
caod_sp(ncol), & !< column simple plume anthropogenic AOD at 550 nm |
338 |
|
✗ |
caod_bg(ncol), & !< column fine-mode natural background AOD at 550 nm |
339 |
|
|
a_plume1, & !< gaussian longitude factor for feature 1 |
340 |
|
|
a_plume2, & !< gaussian longitude factor for feature 2 |
341 |
|
|
b_plume1, & !< gaussian latitude factor for feature 1 |
342 |
|
|
b_plume2, & !< gaussian latitude factor for feature 2 |
343 |
|
|
delta_lat, & !< latitude offset |
344 |
|
|
delta_lon, & !< longitude offset |
345 |
|
|
delta_lon_t, & !< threshold for maximum longitudinal plume extent used in transition from 360 to 0 degrees |
346 |
|
|
lon1, & !< rotated longitude for feature 1 |
347 |
|
|
lat1, & !< rotated latitude for feature 2 |
348 |
|
|
lon2, & !< rotated longitude for feature 1 |
349 |
|
|
lat2, & !< rotated latitude for feature 2 |
350 |
|
|
f1, & !< contribution from feature 1 |
351 |
|
|
f2, & !< contribution from feature 2 |
352 |
|
|
f3, & !< contribution from feature 1 in natural background of Twomey effect |
353 |
|
|
f4, & !< contribution from feature 2 in natural background of Twomey effect |
354 |
|
|
aod_550, & !< aerosol optical depth at 550nm |
355 |
|
|
aod_lmd, & !< aerosol optical depth at input wavelength |
356 |
|
|
lfactor !< factor to compute wavelength dependence of optical properties |
357 |
|
|
! |
358 |
|
|
! ---------- |
359 |
|
|
! |
360 |
|
|
! initialize input data (by calling setup at first instance) |
361 |
|
|
! |
362 |
|
✗ |
IF (.NOT.sp_initialized) CALL sp_setup |
363 |
|
|
! |
364 |
|
|
! get time weights |
365 |
|
|
! |
366 |
|
✗ |
CALL set_time_weight(year_fr) |
367 |
|
|
! |
368 |
|
|
! initialize variables, including output |
369 |
|
|
! |
370 |
|
✗ |
DO k=1,nlevels |
371 |
|
✗ |
DO icol=1,ncol |
372 |
|
✗ |
aod_prof(icol,k) = 0.0 |
373 |
|
✗ |
ssa_prof(icol,k) = 0.0 |
374 |
|
✗ |
asy_prof(icol,k) = 0.0 |
375 |
|
✗ |
z_beta(icol,k) = MERGE(1.0, 0.0, z(icol,k) >= oro(icol)) |
376 |
|
✗ |
eta(icol,k) = MAX(0.0,MIN(1.0,z(icol,k)/15000.)) |
377 |
|
|
END DO |
378 |
|
|
END DO |
379 |
|
✗ |
DO icol=1,ncol |
380 |
|
✗ |
dNovrN(icol) = 1.0 |
381 |
|
✗ |
caod_sp(icol) = 0.0 |
382 |
|
✗ |
caod_bg(icol) = 0.02 |
383 |
|
|
END DO |
384 |
|
|
! |
385 |
|
|
! sum contribution from plumes to construct composite profiles of aerosol optical properties |
386 |
|
|
! |
387 |
|
✗ |
DO iplume=1,nplumes |
388 |
|
|
! |
389 |
|
|
! calculate vertical distribution function from parameters of beta distribution |
390 |
|
|
! |
391 |
|
✗ |
DO icol=1,ncol |
392 |
|
✗ |
beta_sum(icol) = 0. |
393 |
|
|
END DO |
394 |
|
✗ |
DO k=1,nlevels |
395 |
|
✗ |
DO icol=1,ncol |
396 |
|
✗ |
prof(icol,k) = (eta(icol,k)**(beta_a(iplume)-1.) * (1.-eta(icol,k))**(beta_b(iplume)-1.)) * dz(icol,k) |
397 |
|
✗ |
beta_sum(icol) = beta_sum(icol) + prof(icol,k) |
398 |
|
|
END DO |
399 |
|
|
END DO |
400 |
|
✗ |
DO k=1,nlevels |
401 |
|
✗ |
DO icol=1,ncol |
402 |
|
✗ |
prof(icol,k) = ( prof(icol,k) / beta_sum(icol) ) * z_beta(icol,k) |
403 |
|
|
END DO |
404 |
|
|
END DO |
405 |
|
|
! |
406 |
|
|
! calculate plume weights |
407 |
|
|
! |
408 |
|
✗ |
DO icol=1,ncol |
409 |
|
|
! |
410 |
|
|
! get plume-center relative spatial parameters for specifying amplitude of plume at given lat and lon |
411 |
|
|
! |
412 |
|
✗ |
delta_lat = lat(icol) - plume_lat(iplume) |
413 |
|
✗ |
delta_lon = lon(icol) - plume_lon(iplume) |
414 |
|
✗ |
delta_lon_t = MERGE (260., 180., iplume == 1) |
415 |
|
✗ |
delta_lon = MERGE ( delta_lon-SIGN(360.,delta_lon) , delta_lon , ABS(delta_lon) > delta_lon_t) |
416 |
|
|
|
417 |
|
✗ |
a_plume1 = 0.5 / (MERGE(sig_lon_E(1,iplume), sig_lon_W(1,iplume), delta_lon > 0)**2) |
418 |
|
✗ |
b_plume1 = 0.5 / (MERGE(sig_lat_E(1,iplume), sig_lat_W(1,iplume), delta_lon > 0)**2) |
419 |
|
✗ |
a_plume2 = 0.5 / (MERGE(sig_lon_E(2,iplume), sig_lon_W(2,iplume), delta_lon > 0)**2) |
420 |
|
✗ |
b_plume2 = 0.5 / (MERGE(sig_lat_E(2,iplume), sig_lat_W(2,iplume), delta_lon > 0)**2) |
421 |
|
|
! |
422 |
|
|
! adjust for a plume specific rotation which helps match plume state to climatology. |
423 |
|
|
! |
424 |
|
✗ |
lon1 = COS(theta(1,iplume))*(delta_lon) + SIN(theta(1,iplume))*(delta_lat) |
425 |
|
✗ |
lat1 = - SIN(theta(1,iplume))*(delta_lon) + COS(theta(1,iplume))*(delta_lat) |
426 |
|
✗ |
lon2 = COS(theta(2,iplume))*(delta_lon) + SIN(theta(2,iplume))*(delta_lat) |
427 |
|
✗ |
lat2 = - SIN(theta(2,iplume))*(delta_lon) + COS(theta(2,iplume))*(delta_lat) |
428 |
|
|
! |
429 |
|
|
! calculate contribution to plume from its different features, to get a column weight for the anthropogenic |
430 |
|
|
! (cw_an) and the fine-mode natural background aerosol (cw_bg) |
431 |
|
|
! |
432 |
|
✗ |
f1 = time_weight(1,iplume) * ftr_weight(1,iplume) * EXP(-1.* (a_plume1 * ((lon1)**2) + (b_plume1 * ((lat1)**2)))) |
433 |
|
✗ |
f2 = time_weight(2,iplume) * ftr_weight(2,iplume) * EXP(-1.* (a_plume2 * ((lon2)**2) + (b_plume2 * ((lat2)**2)))) |
434 |
|
✗ |
f3 = time_weight_bg(1,iplume) * ftr_weight(1,iplume) * EXP(-1.* (a_plume1 * ((lon1)**2) + (b_plume1 * ((lat1)**2)))) |
435 |
|
✗ |
f4 = time_weight_bg(2,iplume) * ftr_weight(2,iplume) * EXP(-1.* (a_plume2 * ((lon2)**2) + (b_plume2 * ((lat2)**2)))) |
436 |
|
|
|
437 |
|
✗ |
cw_an(icol) = f1 * aod_spmx(iplume) + f2 * aod_spmx(iplume) |
438 |
|
✗ |
cw_bg(icol) = f3 * aod_fmbg(iplume) + f4 * aod_fmbg(iplume) |
439 |
|
|
! |
440 |
|
|
! calculate wavelength-dependent scattering properties |
441 |
|
|
! |
442 |
|
✗ |
lfactor = MIN(1.0,700.0/lambda) |
443 |
|
✗ |
ssa(icol) = (ssa550(iplume) * lfactor**4) / ((ssa550(iplume) * lfactor**4) + ((1-ssa550(iplume)) * lfactor)) |
444 |
|
✗ |
asy(icol) = asy550(iplume) * SQRT(lfactor) |
445 |
|
|
END DO |
446 |
|
|
! |
447 |
|
|
! distribute plume optical properties across its vertical profile weighting by optical depth and scaling for |
448 |
|
|
! wavelength using the angstrom parameter. |
449 |
|
|
! |
450 |
|
✗ |
lfactor = EXP(-angstrom(iplume) * LOG(lambda/550.0)) |
451 |
|
✗ |
DO k=1,nlevels |
452 |
|
✗ |
DO icol = 1,ncol |
453 |
|
✗ |
aod_550 = prof(icol,k) * cw_an(icol) |
454 |
|
✗ |
aod_lmd = aod_550 * lfactor |
455 |
|
✗ |
caod_sp(icol) = caod_sp(icol) + aod_550 |
456 |
|
✗ |
caod_bg(icol) = caod_bg(icol) + prof(icol,k) * cw_bg(icol) |
457 |
|
✗ |
asy_prof(icol,k) = asy_prof(icol,k) + aod_lmd * ssa(icol) * asy(icol) |
458 |
|
✗ |
ssa_prof(icol,k) = ssa_prof(icol,k) + aod_lmd * ssa(icol) |
459 |
|
✗ |
aod_prof(icol,k) = aod_prof(icol,k) + aod_lmd |
460 |
|
|
END DO |
461 |
|
|
END DO |
462 |
|
|
END DO |
463 |
|
|
! |
464 |
|
|
! complete optical depth weighting |
465 |
|
|
! |
466 |
|
✗ |
DO k=1,nlevels |
467 |
|
✗ |
DO icol = 1,ncol |
468 |
|
✗ |
asy_prof(icol,k) = MERGE(asy_prof(icol,k)/ssa_prof(icol,k), 0.0, ssa_prof(icol,k) > TINY(1.)) |
469 |
|
✗ |
ssa_prof(icol,k) = MERGE(ssa_prof(icol,k)/aod_prof(icol,k), 1.0, aod_prof(icol,k) > TINY(1.)) |
470 |
|
|
END DO |
471 |
|
|
END DO |
472 |
|
|
! |
473 |
|
|
! calculate effective radius normalization (divisor) factor |
474 |
|
|
! |
475 |
|
✗ |
DO icol=1,ncol |
476 |
|
✗ |
dNovrN(icol) = LOG((1000.0 * (caod_sp(icol) + caod_bg(icol))) + 1.0)/LOG((1000.0 * caod_bg(icol)) + 1.0) |
477 |
|
|
END DO |
478 |
|
|
|
479 |
|
✗ |
RETURN |
480 |
|
|
END SUBROUTINE sp_aop_profile |
481 |
|
|
|
482 |
|
|
END MODULE MO_SIMPLE_PLUMES |
483 |
|
|
|