The directories where the biogenic-specific input files should be stored are listed in Table 8.8, “Biogenic-Specific Input File Locations”. The table also lists the programs that use each input file.
This file contains LAI, dry leaf biomass, winter biomass factor, indicator of specific leaf weight, and normalized emission
fluxes for four different species/compounds (ISOP, OVOC, MONO, and NO). The format of this file is shown in Table 8.79, “Format for B3FAC”.
Table 8.79. Format for B3FAC
| Line | Position | Description |
|---|---|---|
| 1+ | 9-24 | Abbreviated name for land use type (Character) |
| A | Leaf area index (m2/m2) (Integer) | |
| B | Dry leaf biomass (g/m2) (Integer) | |
| C | Winter biomass factor (Real) | |
| D | Indicator of specific leaf weight (Integer) | |
| E | Normalized emissions flux for ISOP (Real) | |
| F | Normalized emissions flux for MONO (Real) | |
| G | Normalized emissions flux for OVOC (Real) | |
| H | Normalized emissions flux for NO (Real) |
The B3XRF file contains cross-reference information needed to convert the 230 BELD3 land use types into the 127 BELD2 land use types.
This cross-reference file is used in the program Beld3to2. The B3XRF file contains 230 lines of data in the format shown in Table 8.80, “Format for B3XRF”.
The BFAC file contains BEIS2 emissions factor file. There are two different emission factor files available for use: winter and summer.
Both files use the format shown in Table 8.81, “Format for BFAC”.
The BIOSEASON switch file is an I/O API netCDF file used to indicate how each day in a given year should be treated, either as summer or
winter. This file can be created using the Metscan utility program. The BIOSEASON file is time-dependent and usually contains data for an entire year (365 or 366 days). It uses one variable, SEASON, which
is either 0 (grid cell should use winter factors for current day) or 1 (grid cell should use summer factors for current day).