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Table 2 Fire intensity metrics by ignition pattern within two prairies in the south Puget Sound, Washington, USA, in 2011 and 2012. Where there was sufficient sample size, data are displayed as average ± 1 SD. RoS = rate of spread.

From: Ignition Patterns Influence Fire Severity and Plant Communities in Pacific Northwest, USA, Prairies

  Glacial Heritage Tenalquot
Ignition pattern Flame length (m) RoS (m sec−1) Max. surface temp. (°C) Flame length (m) RoS (m sec−1) Max. surface temp. (°C)
Backing 0.25 ± 0.07 0.03 ± 0.01 349 ± 12 0.20 0.002 260± 109
Head 1.70 ± 0.57 0.68 ± 0.75 254 ± 125 0.50 0.15 227± 101