EPA processors

The supported model chain, shown as a scientific sequence.

Each processor remains explicit so users can understand what prepares the data, what it produces and which version is associated with the workflow.

Processor details

Role, inputs and outputs for every supported component.

The diagram above shows the chain once; the rows below explain the responsibility of each processor without repeating another card grid.

EPA PROCESSOR

v26135

Derives surface characteristics used by the meteorological workflow.

INPUTLand-cover and study-area inputs

OUTPUTSurface characteristic parameters

EPA PROCESSOR

v26135

Processes meteorological observations into AERMOD-ready data.

INPUTMeteorological observations + surface data

OUTPUTSurface (.SFC) and profile (.PFL) files

EPA PROCESSOR

v24142

Calculates terrain elevations for model sources and receptors.

INPUTTerrain + source/receptor coordinates

OUTPUTElevations and hill-height scales

EPA PROCESSOR

v04274

Calculates building downwash parameters where structures affect the plume.

INPUTBuilding geometry + source locations

OUTPUTBuilding influence parameters

EPA PROCESSOR

v26135

Executes the dispersion model and produces concentration outputs.

INPUTValidated model inputs

OUTPUTConcentration results + run artifacts