| Scenario parameter |
Comment |
| Start date/time | user selectable, subject to the availability of input data in the meteo scenario |
| Duration of simulation | fixed at 1 hour for nowcasting, 48 hours for forecasting and scenario runs |
| Master Domain | Fixed to the applicvation domain, e.g., Cyprus |
| Main Grid resolution | scalar [m]; fixed to maintain consistency with all matrix pre-processors |
| Subdomains | user selectable from a list of (possibly user defined) domains |
| Subdomain Grid resolution | fixed for performance reasons, scalar [m], e.g., 500 |
| Vertical grid structure | number of layers, layer interface heights [m]; pre-defined at the application level, read only |
| Chemistry mechanisms | user selectable:
- conservative gas (NOx or SO2)
- conservative particulate matter (PM < 2.5 micrometer
- conservative particulate matter (PM > 2.5 micrometer
- simple chemistry SO2/H2SO4
- simple chemistry NO/NO2
- CB4 (gas phase chemistry, 96 reactions and 37 species)
- CB4/CF (CB4 including Aerosol chemistry, 117 reactions and up to 67 species)
|
| Output layers | only bottom layer or 3 dimensional output, default: bottom layer only |
| Output time step | scalar [min], default is 60 minutes |
| Output pollutants | defined through the chemistry mechanism, fixed for conservative and simple chemistry;
variable only for chemistry mechanisms CB4 and CB4/CF; there a list of chemical species is given; default setting |
| Meteo scenario | user selectable, constrained by domain, model specific |
| Emission scenario | dynamically generated for the domain and period, model resolution (for gridded data)
and chemistry mechanism that defines the set of pollutant emissions required)
|
| Initial conditions | 3D matrix for at least one chemical species, selected from the set of
matrix objects |
| Lateral boundary conditions | Four 2D matrices for at least one chemical species |
| Top concentrations | Upper boundary condition: scalar for at least one chemical species |
| Restart | true or false, if 'true' CAMx uses instanteous concentration files
of preceding run instead of initial concentration file; default in true for nowcasting and forecasting) |
| Error Check | true/false 'true'=will stop after 1st timestep; default set of false |
| Maximum timestep | scalar [min], default set to 15 minutes |
| Dry deposition | true/false, default set to true |
| Wet deposition | true/false, default set to true |
| PiG Submodel | possible values: None, GREASD, IRON, default set to None |
| Map projection | Possible values: LAMBERT, POLAR, UTM, LATLON, default set to UTM |
| UTM Zone | defined by the main domain |
| Advection Solver | Possible values: PPM, BOTT, default set to PPM |
| Chemistry Solver | Possible values: CMC, IEH, LSODE, default set to CMC |
| Probing Tool | possible values: None, OSAT, PSAT, GOAt, APCA, DDM, PA, RTRAC, default set to None |
| Staggered winds | true/false, default set to false |
| Gridded Emissions | true/false, default is set to true |
| Point Emissions | true/false, default set to true |
| Ignore Emission Dates | true/false, default set to true |