6.18.3. Files and Environment Variables

6.18.3.1. Input Files
6.18.3.2. Input Environment Variables
6.18.3.3. Output Files

Figure 6.26. Tmpbio input and output files

Tmpbio input and output files

Figure 6.26, “Tmpbio input and output files” shows the input and output files for the Tmpbio program. The input files include the gridded, normalized biogenic emissions from Rawbio (BGRD and optionally BGRDW) and, if BIOSW_YN = Y, an optional gridded seasonal switch file output from Metscan (BIOSEASON). Rawbio also reads the optional meteorology file GRID_CRO_2D and the speciation profiles file (GSPRO). For inputting surface pressure and radiation/cloud data, Tmpbio can either use individual meteorology files (MET_FILE1 and MET_FILE2) or list files (METLIST and RADLIST).

Tmpbio outputs gridded, speciated, hourly biogenic emissions files in moles/hour (BGTS_L) and tons/hour (BGTS_S) and a log file detailing the program’s execution (LOGFILE).

6.18.3.1. Input Files

File Name Format Description
BGRD I/O API NetCDF Gridded, normalized summer biogenic emissions, output from Rawbio
BGRDW I/O API NetCDF Gridded, normalized winter biogenic emissions, output from Rawbio
BIOSEASON (optional) I/O API NetCDF Gridded seasonal switch file containing daily data, with “0” meaning use winter normalized emissions and “1” meaning use summer normalized emissions, produced by Metscan
GRID_CRO_2D (optional) I/O API NetCDF Meteorology file containing latitude and longitude coordinates for each grid cell
GSPRO ASCII Speciation profiles file
MET_FILE1 I/O API NetCDF Meteorology file containing temperature and surface pressure data and possibly radiation/cloud data as well (see BIOMET_SAME environment variable)
MET_FILE2 (optional) I/O API NetCDF Meteorology file containing radiation/cloud data if not in MET_FILE1
METLIST ASCII List of meteorology files containing temperature and surface pressure data and possibly radiation/cloud data as well (see BIOMET_SAME environment variable)
RADLIST (optional) ASCII List of meteorology files containing radiation/cloud data if not in the files listed by METLIST

6.18.3.2. Input Environment Variables

  • BG_CLOUD_TYPE: [default: 1]

    Specifies which meteorological data to use.

    • 1: Use RGND or RSD (solar radiation reaching the ground) from MM5 to calculate PAR

    • 2: Use MM5 Kuo cloud fractions and surface pressure data to calculate PAR (untested)

    • 3: Use MM5 Kain-Fritsch cloud fractions and surface pressure data to calculate PAR (untested)

    • 4: Use MM5 cloud fractions with no deep convection parameterization and surface pressure data to calculate PAR (untested)

    • 5: Assume clear skies when calculating PAR; need GRID_CRO_2D file (latitude-longitude coordinates) for solar zenith angle calculation

  • BIOG_SPRO: [default: 0000]

    Specifies the speciation profile for biogenic emissions from GSPRO.

  • BIOMET_SAME: [default: N]

    Indicates whether the radiation/cloud data are in the same file as the temperature data (MET_FILE1) or a different file (MET_FILE2).

  • BIOSW_YN: [default: TRUE]

    Indicates whether to input a gridded seasonal switch file.

  • OUTZONE: See description in Section 6.16.3.2, “Input Environment Variables”

  • PRES_VAR: [default: PRSFC]

    Specifies the variable name for surface pressure data to extract from MET_FILE1.

  • RAD_VAR: [default: RGRND]

    Specifies the variable name for radiation/cloud data to extract from either MET_FILE1 or optional MET_FILE2.

  • TMPR_VAR: [default: TA]

    Specifies the variable name for temperature data to extract from MET_FILE1.

6.18.3.3. Output Files

File Name Format Description
BGTS_L I/O API NetCDF Gridded, speciated, hourly biogenic emissions, in moles/hour
BGTS_S I/O API NetCDF Gridded, speciated, hourly biogenic emissions, in tons/hour
LOGFILE ASCII Log generated from executing Tmpbio