Evaluating fireline effectiveness across large wildfire events in north-central Washington State

Lemons, Rebecca E.; Prichard, Susan J.; Kerns, Becky K.

doi:10.1186/s42408-023-00167-6

Fire Ecology

Table 1 Wildfire statistics and metrics included length of fire perimeter (Per), burned over (BO), held (Held), not engaged (NE), total fireline (TL), total engaged (Eng) distances, and percent change of length from the original to corrected firelines (PC). Fireline metrics include total fireline length to fire perimeter ratio (Tr), engaged fireline to total fireline ratio (Er), held-to-engaged fireline ratio (HEr), and held-to-total fireline ratio (HTr), reported for three perimeter sources, including FL, SBS, and MTBS

From: Evaluating fireline effectiveness across large wildfire events in north-central Washington State

		Fire area and perimeter		Fireline distances						Fireline metrics
Fire	Type	Area ha	Per km	BO km	Held km	NE km	TL km	Eng km	PC %	Tr	Er	HEr	HTr
2014 wildfires
Carlton Complex	FL	104,453	403.2	116.6	123.6	145.1	385.2	240.2	−0.1	0.96	0.62	0.51	0.32
	SBS	103,490	437.9	77.3	153.4	154.5	385.2	230.7	−0.1	0.88	0.6	0.66	0.4
	MTBS	111,730	387.6	179.9	74.7	130.7	385.2	254.5	−0.1	0.99	0.66	0.29	0.19
2015 wildfires
9-Mile	FL	1907	26.8	1.1	21.8	4.6	27.4	22.9	2.2	1.02	0.83	0.95	0.79
9-Mile	MTBS	2045	27.6	6.9	17.6	2.9	27.4	24.5	2.2	0.99	0.9	0.72	0.64
Chelan Complex	FL	35,800	336.4	10.3	60.2	62.4	133	70.5	0.7	0.4	0.53	0.85	0.45
	SBS	36,006	330.8	14.5	60.2	58.2	133	74.7	0.7	0.4	0.56	0.81	0.45
	MTBS	33,651	329.1	25.3	44.3	63.4	133	69.6	0.7	0.4	0.52	0.64	0.33
Graves Mountain (Kettle)	SBS	3462	40.1	22	32.6	88.3	143	54.7	130.5	3.57	0.38	0.6	0.23
Graves Mountain (Kettle)	MTBS	3464	40.1	22	32.9	88	143	55	130.5	3.57	0.38	0.6	0.23
Lime Belt	FL	53,625	452.8	76.1	97.9	75.9	249.8	173.9	1.3	0.55	0.7	0.56	0.39
	SBS	54,000	420.6	78.4	98.2	73.3	249.8	176.5	1.3	0.59	0.71	0.56	0.39
	MTBS	55,482	324.9	86.3	95.2	68.3	249.8	181.5	1.3	0.77	0.73	0.52	0.38
North Star	FL	85,741	344.2	35.2	67.2	148	250.4	102.4	1.5	0.73	0.41	0.66	0.27
North Star	MTBS	88,443	270.7	38.2	69.4	142.7	250.4	107.7	1.5	0.92	0.43	0.64	0.28
Renner (Kettle)	SBS	5574	42.6	20.6	28.8	55	104.4	49.4	153.0	2.45	0.47	0.58	0.28
Renner (Kettle)	MTBS	5656	44.8	20.8	29.9	53.7	104.4	50.7	153.0	2.33	0.49	0.59	0.29
Stickpin (Kettle)	SBS	21,739	143.8	43.1	68.5	231.9	343.5	111.6	191.5	2.39	0.32	0.61	0.2
Stickpin (Kettle)	MTBS	21,901	134.5	49.5	59.8	234.2	343.5	109.2	191.5	2.55	0.32	0.55	0.17
Tunk Block	FL	65,765	417.5	35.9	93.7	57.2	186.8	129.6	−24.3	0.45	0.69	0.72	0.5
Tunk Block	MTBS	72,888	244	102.9	39.4	44.5	186.8	142.3	−24.3	0.77	0.76	0.28	0.21
Twisp River	FL	4538	41.8	4.4	3.9	1.9	10.2	8.3	6.6	0.24	0.82	0.47	0.38
	SBS	4541	42	4.4	3.9	1.9	10.2	8.3	6.6	0.24	0.82	0.47	0.38
	MTBS	4558	39.6	4.5	3.8	1.9	10.2	8.3	6.6	0.26	0.82	0.46	0.38
Wolverine Complex	FL	29,628	491.2	4.1	34.5	151.1	189.7	38.6	1.7	0.39	0.2	0.89	0.18
	SBS	26,437	427.9	0.2	5.9	183.6	189.7	6.1	1.7	0.44	0.03	0.97	0.03
	MTBS	26,843	361.5	5.3	0.9	183.5	189.7	6.2	1.7	0.52	0.03	0.14	0
2017 wildfires
Diamond Creek	FL	13,018.3	183.9	0	1.3	63.6	64.9	1.3	1.0	0.35	0.02	1	0.02
	SBS	37,755.7	634.4	0	1.3	63.6	64.9	1.3	1.0	0.1	0.02	1	0.02
	MTBS	36,809.5	423.8	0	0.6	64.3	64.9	0.6	1.0	0.15	0.01	1	0.01
Uno Peak	FL	3500.91	109.8	0.9	2.7	113.3	117	3.6	0.3	1.07	0.03	0.74	0.02
	SBS	3463.83	120.9	1	2.6	113.4	117	3.6	0.3	0.97	0.03	0.73	0.02
	MTBS	3592.9	77.5	0.8	2.6	113.6	117	3.4	0.3	1.51	0.03	0.76	0.02

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