Construct · 1 fields · 1 citations

crown fire: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a single construct in wildland fire science Nearest construct by meaning·not indexed
crown fire1 CONSTRUCTCrown fireVAN WAGNER · 1977

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Wildland fire science

Fire spreading through the forest canopy

In wildland fire science, a crown fire is one that advances through the canopy of trees rather than only along the surface, driven upward from the ground by ladder fuels and sustained by the heat of the surface fire beneath it. Van Wagner's 1977 Conditions for the start and spread of crown fire set out the thresholds that decide whether a surface fire climbs into the crowns and whether a crown fire, once started, can keep spreading: a critical surface intensity to initiate crowning and a minimum spread rate and canopy bulk density to sustain it. The referent is the canopy-borne regime of a forest fire, the most intense and fastest-spreading, classified as passive, active, or independent by how strongly it couples to the surface fire below.[1]

Unit
Whether and how fast fire propagates through the tree canopy
Recovery means
Not applicable
Measured by
Assessed by critical surface fireline intensity for initiation, canopy base height, canopy bulk density, and the resulting crown spread rate

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Nearby constructs

flame spread1 fields · 1 citationsanchor · a single construct in fire sciencefire whirl1 fields · 1 citationsanchor · a single construct in fire dynamicsbulk2 fields · 2 citationsjingle · one word, two constructs

References

  1. Van Wagner, C. E. (1977). Conditions for the start and spread of crown fire. Canadian Journal of Forest Research, 7(1), 23–34. https://doi.org/10.1139/x77-004

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