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11/1/2022 - J. Willison: added inputs for MEGAN 3.2

This folder contains MEGAN 3.2 inputs for the CONUS domain. Users should configure the following environmental variables in their run script when using MEGAN with CMAQ: 

     setenv CTM_BIOGEMIS_MG Y     #> turns on MEGAN biogenic emission [ default: N ]
     setenv BDSNP_MEGAN N         #> turns on optional BDSNP soil NO emissions [ default: N ]

  if ( $CTM_BIOGEMIS_MG == 'Y' ) then
     setenv MEGAN_SOILINP    $OUTDIR/CCTM_MSOILOUT_${RUNID}_${YESTERDAY}.nc
                             #> Biogenic NO soil input file; ignore if INITIAL_RUN = Y
                             #>                            ; ignore if IGNORE_SOILINP = Y

         setenv MEGAN_CTS CT3_CONUS.ncf
         setenv MEGAN_EFS EFMAPS_CONUS.ncf
         setenv MEGAN_LDF LDF_CONUS.ncf

         if ($BDSNP_MEGAN == 'Y') then
            setenv BDSNPINP    $OUTDIR/CCTM_BDSNPOUT_${RUNID}_${YESTERDAY}.nc # BDSNP restart file

            setenv BDSNP_FFILE FERT_CONUS.ncf
            setenv BDSNP_NFILE NDEP_CONUS.ncf
            setenv BDSNP_LFILE LANDTYPE_CONUS.ncf
            setenv BDSNP_AFILE ARID_CONUS.ncf
            setenv BDSNP_NAFILE NONARID_CONUS.ncf
         endif
  endif


By default the LAI values in MCIP files will be used for MEGAN. Alternative LAI input can be used by setting:

     setenv USE_MEGAN_LAI Y

and

     setenv MEGAN_LAI LAI_CONUS.ncf

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