Fire near Territoire du Nord (AU)

17.40°S, 135.12°E · first detected on 27 September at 08:37

What the satellites measured

This fire was tracked from 27 September at 08:37 to 5 October at 06:46, that is 8 days, through 2,037 satellite detections. The detected extent reaches 29,893 ha.

Detected extent: 29,893 ha
Cumulative power: 25,672 MW
Peak power, one pixel: 985 MW
VIIRS and MODIS detections: 2,037

These four figures cover the polar orbits alone, the ones that measure an area. The pass table below also counts geostationary detections, more frequent but too coarse for geometry, and its power column sums a whole pass where the peak above is that of a single pixel.

“Detected extent” is not “burned area”: it is the union of the ground footprints of the satellite pixels, and a pixel counts in full (375 m for VIIRS, 1 km for MODIS) even when only a forest edge is burning. Compared with press figures it is in practice one and a half to three times the area reported. Detections taken at the edge of the scan swath, too coarse to measure anything at all, are excluded. These figures come from thermal detection and are not an official assessment: only the emergency services and the competent authorities are authoritative.

Replay how the fire spread

The map is framed on this fire's footprint and loads only its detections. The timeline below covers the period in which satellites saw it, from the first to the last detection, with twelve hours before and twenty-four after; the ticks on the bar mark the emergency services' announcements that fall within it. The cursor opens on the most powerful pass, and playback replays the whole fire in about thirty seconds. “1 h” shows what is burning within an hour of the chosen moment : the map then follows the power curve below and empties when it falls. “24 h” stacks twenty-four hours : a fire stays visible between two satellite passes, which come two to four times a day. Both are true, but they say different things.

How the radiative power evolved

One point per satellite pass: the sum of the fire radiative power measured over the fire. This is the curve that says whether the fire eased off or picked up again, which no cumulative figure shows. The window covers 10 days; beyond that, clustering would merge two successive fires in the same place.

Fire dynamics

Loading history…

Satellite passes in detail

Pass	Power summed over the pass	Detections	Sensor
6 October at 01:33	9 MW	1	Terra
5 October at 18:52	20 MW	12	N20
5 October at 18:33	22 MW	23	N
5 October at 17:56	22 MW	12	N21
5 October at 08:46	187 MW	13	Aqua
5 October at 07:23	244 MW	33	N
5 October at 06:46	298 MW	32	N21
5 October at 06:02	86 MW	15	N20
4 October at 19:09	2 MW	1	N20
4 October at 18:50	10 MW	6	N
4 October at 18:13	10 MW	11	N21
4 October at 17:29	7 MW	4	N20
4 October at 07:40	83 MW	12	N
4 October at 07:04	293 MW	34	N21
4 October at 06:19	197 MW	30	N20
4 October at 06:00	153 MW	25	N
3 October at 19:09	13 MW	9	N
3 October at 18:33	25 MW	14	N21
3 October at 17:48	28 MW	16	N20
3 October at 17:31	7 MW	4	N
3 October at 13:25	71 MW	4	Terra
3 October at 07:23	730 MW	71	N21
3 October at 06:40	966 MW	92	N20
3 October at 05:42	721 MW	43	N21
3 October at 01:14	36 MW	4	Terra
2 October at 18:52	38 MW	27	N21
2 October at 18:07	39 MW	28	N20
2 October at 17:48	26 MW	22	N
2 October at 14:23	82 MW	3	Terra
2 October at 08:31	1,665 MW	12	Aqua
2 October at 06:57	1,217 MW	140	N20
2 October at 06:38	782 MW	98	N
2 October at 06:02	2,335 MW	235	N21
1 October at 20:21	6 MW	1	Aqua
1 October at 19:09	49 MW	22	N21
1 October at 18:26	107 MW	110	N20
1 October at 18:05	134 MW	88	N
1 October at 17:29	132 MW	74	N21
1 October at 13:45	124 MW	21	Terra
1 October at 09:31	264 MW	3	Aqua
1 October at 07:16	1,128 MW	131	N20
1 October at 06:57	2,728 MW	225	N
1 October at 06:19	5,373 MW	206	N21
1 October at 01:35	829 MW	49	Terra
30 September at 18:45	28 MW	8	N20
30 September at 18:26	27 MW	25	N
30 September at 17:50	44 MW	20	N21
30 September at 13:06	3,677 MW	18	Terra
30 September at 08:54	47 MW	3	Aqua
30 September at 07:36	693 MW	66	N20
30 September at 07:16	721 MW	81	N
30 September at 06:40	618 MW	59	N21
30 September at 05:53	4,234 MW	47	N20
29 September at 20:43	10 MW	1	Aqua
29 September at 19:05	645 MW	72	N20
29 September at 18:43	285 MW	104	N
29 September at 18:07	985 MW	277	N21
29 September at 17:24	358 MW	122	N20
29 September at 14:04	563 MW	11	Terra
29 September at 08:14	130 MW	1	Aqua
29 September at 07:33	307 MW	20	N
29 September at 06:57	930 MW	70	N21
29 September at 06:14	1,058 MW	95	N20
29 September at 05:53	731 MW	27	N
29 September at 01:54	40,221 MW	112	Terra
28 September at 20:06	374 MW	10	Aqua
28 September at 19:05	2,981 MW	879	N
28 September at 18:26	3,028 MW	856	N21
28 September at 17:41	1,858 MW	494	N20
28 September at 09:14	64 MW	1	Aqua
28 September at 07:16	416 MW	16	N21
28 September at 06:32	1,550 MW	111	N20
28 September at 06:14	2,628 MW	129	N
28 September at 01:16	4,887 MW	45	Terra
27 September at 19:22	306 MW	49	N
27 September at 18:45	483 MW	83	N21
27 September at 18:03	1,488 MW	190	N20
27 September at 17:41	709 MW	165	N
27 September at 14:25	1,199 MW	6	Terra
27 September at 08:37	120 MW	3	Aqua
27 September at 06:51	474 MW	16	N20
27 September at 06:32	83 MW	10	N
27 September at 05:55	197 MW	23	N21
26 September at 20:26	31 MW	3	Aqua
26 September at 19:05	37 MW	18	N21
26 September at 18:20	59 MW	52	N20
26 September at 17:58	73 MW	45	N
26 September at 17:24	80 MW	25	N21
26 September at 13:47	451 MW	18	Terra
26 September at 07:10	1,897 MW	89	N20
26 September at 06:51	1,653 MW	115	N

8 other fires near Territoire du Nord (AU)

Separate fires, apart in time or in space, not pieces of this one. A single municipality can have several over one summer, and a forest massif often covers more than a hundred square kilometres.

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