gauss_control.txt | load control file |
gauss_setup.txt | load setup file |
numpar = 1 | namelist particle release number |
initd = 3 | namelist Gaussian-horizontal particle-vertical |
Puffs ...
- Improves the representativeness of modelled flow over a single puff
- Results in an ever-increasing number of puffs
- When NPUFF>0.5*MAXPAR, puff splitting is turned off
- When NPUFF>MAXPAR, emissions (new puffs) are turned off
- If this occurs, air concentrations may be under-predicted
- Address by increasing the value of MAXPAR
Particles ...
- 3D particles provide better representation of a complex atmosphere
- The HYSPLIT default is the 3D particle mode
- The relation between particle number and grid size must be considered
- Requires user to define the particle number and not rely upon puff-splitting to smooth the distribution
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