// $Header: /cvsroot/nco/nco/data/psd_wrf.nco,v 1.13 2007/05/16 05:02:48 zender Exp $ -*-C++-*-

// Purpose: ncap script for WRF particle size distributions
// Based on psd.nco

/* Usage:
   ncap2 -v -O -D 1 -S ${HOME}/nco/data/psd_wrf.nco ${HOME}/nco/data/in.nc ~/foo_psd.nc
   ncks -C -H -F -u -v ovr_mss_frc,ovr_mss_frc_ttl,ovr_mss_frc_nrm,ovr_mss_frc_nrm_ttl ~/foo_psd.nc
   ncks -C -H -F -u -v ovr_nbr_frc,ovr_nbr_frc_ttl,ovr_nbr_frc_nrm,ovr_nbr_frc_nrm_ttl ~/foo_psd.nc
   ncks -C -H -F -u -v mss_rsl,nbr_rsl,nbr_spc_rsl ~/foo_psd.nc
   ncks -C -H -F -u -v dmt_nwa,dmt_saa,dmt_vaa ~/foo_psd.nc */

/* Ancillary simulations:
# 20061117: Compute mass fractions for eight size bins in WRF-Chem model:
dead --dbg=1 --time_nbr=451189 ${DATA}/esh/paws_Ptr_19910101_20031231.nc ${DATA}/esh/dead_psd_wrf_paws_Ptr.nc > ~/foo 2>&1 &
dead --dbg=1 --time_nbr=451189 ${DATA}/esh/paws_Ptr_19910101_20031231.nc ${DATA}/esh/dead_psd_cam_paws_Ptr.nc > ~/foo 2>&1 &
ln -s -f ${DATA}/esh/dead_psd_wrf_paws_Ptr.nc ~/foo.nc

# Normalize mass fractions after imposing CAM mass fractions for largest two bins (which are identical between CAM and WRF)
ncap2 -v -D 1 -O \
-s 'flx_mss_vrt_dst_avg=flx_mss_vrt_dst.avg($time,$lon)' \
-s 'flx_mss_vrt_dst_ttl=flx_mss_vrt_dst_avg.total()' \
-s 'flx_mss_vrt_dst_nrm=flx_mss_vrt_dst_avg/flx_mss_vrt_dst_ttl' \
-s 'flx_mss_vrt_dst_nrm_ttl=flx_mss_vrt_dst_nrm.total()' \
-s 'defdim("x",6);flx_mss_vrt_dst_nrm_trc[$x]=flx_mss_vrt_dst_nrm(0:5)' \
-s 'flx_mss_vrt_dst_nrm_trc_nrm=flx_mss_vrt_dst_nrm_trc*(1.0-(0.17+0.67))/flx_mss_vrt_dst_nrm_trc.total()' \
-s 'flx_mss_vrt_dst_nrm_crc=flx_mss_vrt_dst_nrm' \
-s 'flx_mss_vrt_dst_nrm_crc(0:5)=flx_mss_vrt_dst_nrm_trc_nrm' \
-s 'flx_mss_vrt_dst_nrm_crc(6)=0.17' \
-s 'flx_mss_vrt_dst_nrm_crc(7)=0.67' \
-s 'flx_mss_vrt_dst_nrm_crc_ttl=flx_mss_vrt_dst_nrm_crc.total()' \
~/foo.nc ~/foo_wrf.nc # Normalize mass fractions
ncks -C -F -v flx_mss_vrt_dst_nrm,flx_mss_vrt_dst_nrm_ttl,flx_mss_vrt_dst_nrm_crc,flx_mss_vrt_dst_nrm_crc_ttl ~/foo_wrf.nc # Answers
ncks -C -F -s "%8.3e, " -v flx_mss_vrt_dst_nrm,flx_mss_vrt_dst_nrm_crc ~/foo_wrf.nc # Answers formatted
 */

pi=3.1415926535897932384626433832795029L; // (3.1415926535897932384626433832795029L) [frc] 3
pi@long_name="Pi";
pi@units="fraction";

/* NB: "Scalar" quantities are those which _could_ be size-dependent, though
   are size-indenpendent (hence "scalar") in the default DEAD implementation */
psd_cam=0s; // [flg] CAM size grid
psd_wrf=1s; // [flg] WRF size grid

// Choose PSD
psd_typ=psd_wrf; // [enm] Size grid type

if(psd_typ==psd_cam){
  sz_nbr=4; // [nbr] Number of particle size bins
  defdim("dmt",sz_nbr); // [nbr] Diameter dimension
  dmt_min_mcr[dmt]={0.1, 1.0, 2.5,  5.0}; // [um] Minimum diameter
  dmt_max_mcr[dmt]={1.0, 2.5, 5.0, 10.0}; // [um] Maximum diameter
}else if(psd_typ==psd_wrf){
  sz_nbr=8; // [nbr] Number of particle size bins
  defdim("dmt",sz_nbr); // [nbr] Diameter dimension
  dmt_min_mcr[dmt]={0.0390625, 0.078125, 0.15625, 0.3125, 0.625, 1.25, 2.5,  5.0}; // [um] Minimum diameter
  dmt_max_mcr[dmt]={0.078125 , 0.15625 , 0.3125 , 0.625,  1.25 , 2.5 , 5.0, 10.0}; // [um] Maximum diameter
} // !psd_typ

dmt_min=1.0e-6*dmt_min_mcr; // [m] Minimum diameter
dmt_min@long_name="Minimum diameter";
dmt_min@units="meter";

dmt_max=1.0e-6*dmt_max_mcr; // [m] Maximum diameter
dmt_max@long_name="Maximum diameter";
dmt_max@units="meter";

dmt_vma_mcr_scl=3.5; // [um] Volume median diameter analytic, scalar
dmt_vma_scl=1.0e-6*dmt_vma_mcr_scl; // [m] Volume median diameter analytic, scalar
dmt_vma[dmt]=dmt_vma_scl; // [m] Volume median diameter analytic

dns_prt_scl=2500.0; // [kg m-3] Density of particle, scalar
dns_prt[dmt]=dns_prt_scl; // [kg m-3] Density of particle
dns_prt@long_name="Density of particle";
dns_prt@units="kilogram meter-3";

cnc_nbr_ttl=1.0; // [# m-3] Number concentration analytic
cnc_nbr_ttl@long_name="Number concentration analytic";
cnc_nbr_ttl@units="number meter-3";

// Set coordinate equal to number median diamter for now
dmt_ctr=0.5*(dmt_min+dmt_max); // [m] Diameter at bin center
dmt=dmt_ctr; // [m] Diameter coordinate
dmt@long_name="Diameter coordinate";
dmt@units="meter";

// Compute fraction of lognormal distribution that lies between two endpoints
gsd_scl=2.0; // [frc] Geometric standard deviation, scalar
gsd=gsd_scl; // [frc] Geometric standard deviation
gsd@long_name="Geometric standard deviation";
gsd@units="fraction";

dmt_nma=dmt_vma*exp(-3.0*(ln(gsd))^2.0); // [m] Number median diameter analytic
dmt_naa=dmt_nma*exp(0.5*(ln(gsd))^2.0); // [m] Number mean diameter analytic
dmt_nwa=dmt_nma*exp(0.5*(ln(gsd))^2.0); // [m] Number weighted mean diameter analytic
dmt_saa=dmt_nma*exp(1.0*(ln(gsd))^2.0); // [m] Surface area mean diameter analytic
dmt_vaa=dmt_nma*exp(1.5*(ln(gsd))^2.0); // [m] Volume mean diameter analytic
dmt_sma=dmt_nma*exp(2.0*(ln(gsd))^2.0); // [m] Surface area median diameter analytic
dmt_swa=dmt_nma*exp(2.5*(ln(gsd))^2.0); // [m] Surface area weighted mean diameter analytic
//dmt_vma=dmt_nma*exp(3.0*(ln(gsd))^2.0); // [m] Volume median diameter analytic
dmt_vwa=dmt_nma*exp(3.5*(ln(gsd))^2.0); // [m] Volume weighted mean diameter analytic

dmt_naa@long_name="Number mean diameter analytic";
dmt_naa@units="meter";
dmt_nma@long_name="Number median diameter analytic";
dmt_nma@units="meter";
dmt_nwa@long_name="Number weighted mean diameter analytic";
dmt_nwa@units="meter";
dmt_saa@long_name="Surface area mean diameter analytic";
dmt_saa@units="meter";
dmt_sma@long_name="Surface area median diameter analytic";
dmt_sma@units="meter";
dmt_swa@long_name="Surface area weighted mean diameter analytic";
dmt_swa@units="meter";
dmt_vaa@long_name="Volume mean diameter analytic";
dmt_vaa@units="meter";
dmt_vma@long_name="Volume median diameter analytic";
dmt_vma@units="meter";
dmt_vwa@long_name="Volume weighted mean diameter analytic";
dmt_vwa@units="meter";

// ncap2 -v -O -s "gsd=2.0;dmt_vma=2.5;dmt_min=5.0;dmt_max=10.0;ovr_mss_frc=0.5*(erf(log(dmt_max/dmt_vma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_vma)/(sqrt(2.0)*log(gsd))))));" ${HOME}/nco/data/in.nc ~/foo.nc;ncks -H -C -u ~/foo.nc
ovr_mss_frc=0.5*(erf(log(dmt_max/dmt_vma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_vma)/(sqrt(2.0)*log(gsd)))); // [frc] Fraction of lognormal mass distribution between endpoints
ovr_mss_frc@long_name="Fraction of lognormal mass distribution between endpoints";
ovr_mss_frc@units="fraction";

ovr_mss_frc_ttl=ovr_mss_frc.total(); // [frc] Sum of mass overlap fractions
ovr_mss_frc_ttl@long_name="Sum of mass overlap fractions";
ovr_mss_frc_ttl@units="fraction";

ovr_mss_frc_nrm=ovr_mss_frc/ovr_mss_frc_ttl; // [frc] Normalized mass overlap fractions
ovr_mss_frc_nrm@long_name="Normalized mass overlap fractions";
ovr_mss_frc_nrm@units="fraction";

ovr_mss_frc_nrm_ttl=ovr_mss_frc_nrm.total(); // [frc] Sum of normalized mass overlap fractions
ovr_mss_frc_nrm_ttl@long_name="Sum of normalized mass overlap fractions";
ovr_mss_frc_nrm_ttl@units="fraction";

// ncap2 -v -O -s "gsd=2.0;dmt_nma=2.5;dmt_min=5.0;dmt_max=10.0;ovr_nbr_frc=0.5*(erf(log(dmt_max/dmt_nma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_nma)/(sqrt(2.0)*log(gsd))))));" ${HOME}/nco/data/in.nc ~/foo.nc;ncks -H -C -u ~/foo.nc
ovr_nbr_frc=0.5*(erf(log(dmt_max/dmt_nma)/(sqrt(2.0)*log(gsd)))-erf(log(dmt_min/dmt_nma)/(sqrt(2.0)*log(gsd)))); // [frc] Fraction of lognormal number distribution between endpoints
ovr_nbr_frc@long_name="Fraction of lognormal number distribution between endpoints";
ovr_nbr_frc@units="fraction";

ovr_nbr_frc_ttl=ovr_nbr_frc.total(); // [frc] Sum of number overlap fractions
ovr_nbr_frc_ttl@long_name="Sum of number overlap fractions";
ovr_nbr_frc_ttl@units="fraction";

ovr_nbr_frc_nrm=ovr_nbr_frc/ovr_nbr_frc_ttl; // [frc] Normalized number overlap fractions
ovr_nbr_frc_nrm@long_name="Normalized number overlap fractions";
ovr_nbr_frc_nrm@units="fraction";

ovr_nbr_frc_nrm_ttl=ovr_nbr_frc_nrm.total(); // [frc] Sum of normalized number overlap fractions
ovr_nbr_frc_nrm_ttl@long_name="Sum of normalized number overlap fractions";
ovr_nbr_frc_nrm_ttl@units="fraction";

// Compute resolved absolute quantities
dmt_nma_scl=dmt_vma_scl*exp(-3.0*(ln(gsd))^2.0); // [um] Number median diameter analytic, scalar
dmt_nma_scl@long_name="Number median diameter analytic, scalar";
dmt_nma_scl@units="meter";

vlm_anl_scl=cnc_nbr_ttl*(pi/6.0)*(dmt_nma_scl^3.0)*exp(4.5*(ln(gsd))^2.0); // [m3 m-3] Volume concentration analytic
vlm_anl_scl@long_name="Volume concentration analytic";
vlm_anl_scl@units="meter3 meter-3";

mss_anl_scl=dns_prt_scl*vlm_anl_scl; // [kg m-3] Mass concentration analytic
mss_anl_scl@long_name="Mass concentration analytic";
mss_anl_scl@units="kilogram meter-3";

nbr_anl_scl=cnc_nbr_ttl; // [# m-3] Number concentration analytic
nbr_anl_scl@long_name="Number concentration analytic";
nbr_anl_scl@units="number meter-3";

// NB: Multiply by absoluted (not normalized) mass fraction
mss_rsl=ovr_mss_frc*mss_anl_scl; // [kg m-3] Mass concentration resolved
mss_rsl@long_name="Mass concentration resolved";
mss_rsl@units="kilogram meter-3";

nbr_rsl=ovr_nbr_frc*nbr_anl_scl; // [# m-3] Number concentration resolved
nbr_rsl@long_name="Number concentration resolved";
nbr_rsl@units="number meter-3";

nbr_spc_rsl=nbr_rsl/mss_rsl; // [# kg-1] Specific concentration resolved
nbr_spc_rsl@long_name="Specific concentration resolved";
nbr_spc_rsl@units="number kilogram-1";

