The directories where the meteorology files should be stored are listed in Table 6.7, “Meteorology Input File Locations”. The table also lists the programs that use each input file.
The five meteorology files that SMOKE needs for biogenic emissions adjustments, calculation of on-road mobile source emission,
and plume rise calculations are GRID_CRO_2D, GRID_CRO_3D, MET_CRO_2D, MET_CRO_3D, and MET_DOT_3D. The files are usually based on MM5 data but must be specially formatted by a postprocessor like MCIP or MCPL.
GRID_CRO_2D - 2-D grid parameters file
GRID_CRO_3D - 3-D grid parameters file
MET_CRO_2D - 2-D cross-point data file (surface meteorology data)
MET_CRO_3D - 3-D cross-point data file (layered meteorology data)
MET_DOT_3D - 3-D dot-point data file (layered meteorology data)
Table 6.54. Meteorology variables used by program
| File name | Program | Variable | Description | Notes |
|---|---|---|---|---|
GRID_CRO_2D |
Tmpbeis3, Tmpbeis4 | LAT | grid cell latitude (degrees) | |
| LON | grid cell longitude (degrees) | |||
| LON | grid cell longitude (degrees) | only used if BG_CLOUD_TYPE = 1
|
||
GRID_CRO_3D |
Laypoint | X3HT0F | height of layer face above ground (m) | only used when layer structure is static |
| X3HT0M | height of layer middle above ground (m) | only used when layer structure is static | ||
MET_CRO_2D |
Laypoint | HFX | sensible heat flux (watts/m2) | |
| PBL | PBL height (m) | |||
| PRSFC | surface pressure (Pascals) | |||
| TEMP1P5 | temperature at 1.5 m (Kelvins) | |||
| USTAR | average friction velocity (m/s) | |||
| Met4moves | TEMP2 | temperature at 2m (Kelvins) | variable name is set by TVARNAME, all Met4moves variables must be in same file
|
|
| Tmpbeis3, Tmpbeis4 | RGRND | solar radiation reaching surface (watts/m2) | variable name is set by RAD_VAR, actual file used is determined by BIOMET_SAME |
|
| RGRND | solar radiation reaching surface (watts/m2) | only used if BG_CLOUD_TYPE = 1, variable name is set by RAD_VAR, actual file used is determined by BIOMET_SAME |
||
MET_CRO_3D |
Laypoint | DENS | total air density (kg/m3) | |
| PRES | pressure (Pascals) | |||
| QV | water vapor mixing ratio (kg/kg) | |||
| TA | air temperature (Kelvins) | |||
| ZF | full-layer height above ground (m) | |||
| ZH | mid-layer height above ground (m) | |||
| Met4moves | PRES | pressure (Pascals) | all Met4moves variables must be in same file | |
| Met4moves | QV | water vapor mixing ratio (kg/kg) | all Met4moves variables must be in same file | |
| Tmpbeis3, Tmpbeis4 | PRES | pressure (Pascals) | variable name is set by PRES_VAR |
|
| RC | convective rainfall (cm) | variable name is set by RC_VAR |
||
| RN | nonconvective rainfall (cm) | variable name is set by RN_VAR |
||
| SLTYP | soil texture type by USDA category | only used if PX_VERSION = Y, variable name is set by ISLTYP_VAR |
||
| SOIM1 | volumetric soil moisture in top centimeter (m3/m3) | only used if PX_VERSION = Y, variable name is set by SOILM_VAR |
||
| SOIT1 | soil temperature in top centimeter (Kelvins) | only used if PX_VERSION = Y, variable name is set by SOILT_VAR |
||
| TA | air temperature (Kelvins) | variable name is set by TMPR_VAR, actual file opened depends on MET_FILE1 |
||
| Tmpbeis3, Tmpbeis4 | TA | air temperature (Kelvins) | variable name is set by TMPR_VAR, actual file opened depends on MET_FILE1/METLIST |
|
MET_DOT_3D |
Laypoint | UWIND | U-component of wind (m/s) | |
| VWIND | V-component of wind (m/s) |
The METLIST file is used to provide the file names of available meteorology files to the Met4moves programs. Met4moves runs once for the entire modeling episode, and therefore needs all of the files at one time. The meteorology files provided
to Met4moves must cover the desired episode and contain the requested variables. In the example SMOKE scripts, this file is generated
automatically. The format of this file is shown in Table 6.55, “Format for METLIST”.