Wildfire Knowledge Graph · Smoke & Indoor Air
The airborne mixture of gases and particles transported away from a fire by buoyancy and atmospheric flow.
In plain language
The airborne mixture of gases and particles transported away from a fire by buoyancy and atmospheric flow.
Why it matters
Smoke Plume is useful because it separates one specific part of wildfire behaviour, exposure, operations or evidence from nearby concepts that can otherwise be mixed together.
What is a smoke plume?
In current NWCG terminology, a smoke plume is the gases, smoke and debris from a fire that rise while being carried along because ambient wind forcing exceeds the plume’s buoyant forcing.
Smoke plume vs convection column
NWCG distinguishes a smoke plume from a convection column, where the rising column has a strong vertical component and buoyant forces dominate ambient surface wind.
What controls plume form?
- Fire heat release and buoyancy.
- Ambient wind speed and vertical wind shear.
- Atmospheric stability.
- Plume rise and injection height.
- Mixing height.
- Terrain and local circulations.
A visible plume is not a direct exposure measurement
Plume shape and direction can indicate transport, but surface PM2.5 depends on vertical mixing, plume height, terrain, time and receptor location.
Knowledge Graph chain
Fire Heat Release → Buoyancy → Plume Rise → Smoke Plume → Atmospheric Transport → Smoke Dispersion → PM2.5
Technical references
NWCG — Smoke Plume · NWCG — Convection Column
Tecnobosque Reference Concept · reviewed September 2026. Preserve the distinction between plume geometry, atmospheric transport and surface smoke concentration.