Fire near Australie-Occidentale (AU)

20.79°S, 126.19°E · first detected on 21 October at 13:37

What the satellites measured

This fire was tracked from 21 October at 13:37 to 22 October at 19:56, through 156 satellite detections. The detected extent reaches 2,192 ha.

Detected extent: 2,192 ha
Cumulative power: 3,881 MW
Peak power, one pixel: 175 MW
VIIRS and MODIS detections: 156

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 4 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
23 October at 05:57	96 MW	1	Him9
23 October at 05:37	143 MW	1	Him9
23 October at 05:27	341 MW	2	Him9
23 October at 05:17	189 MW	1	Him9
23 October at 05:07	273 MW	1	Him9
23 October at 04:57	726 MW	3	Him9
23 October at 04:37	1,479 MW	4	Him9
23 October at 04:27	1,297 MW	5	Him9
23 October at 04:17	1,195 MW	4	Him9
23 October at 04:07	1,107 MW	5	Him9
23 October at 03:57	1,584 MW	5	Him9
23 October at 03:47	2,723 MW	7	Him9
23 October at 03:37	1,342 MW	7	Him9
23 October at 03:27	650 MW	5	Him9
23 October at 03:17	413 MW	4	Him9
23 October at 03:07	1,075 MW	5	Him9
23 October at 02:57	1,763 MW	5	Him9
23 October at 02:47	1,803 MW	5	Him9
23 October at 02:37	366 MW	3	Him9
23 October at 02:27	663 MW	5	Him9
23 October at 02:17	613 MW	4	Him9
23 October at 02:07	618 MW	3	Him9
23 October at 01:07	75 MW	2	Him9
23 October at 00:27	18 MW	1	Him9
22 October at 23:57	48 MW	1	Him9
22 October at 19:56	5 MW	4	N
22 October at 19:17	27 MW	6	N21
22 October at 18:35	19 MW	9	N20
22 October at 18:13	24 MW	11	N
22 October at 17:17	51 MW	2	Him9
22 October at 16:37	42 MW	2	Him9
22 October at 16:27	92 MW	4	Him9
22 October at 16:07	86 MW	4	Him9
22 October at 15:57	56 MW	3	Him9
22 October at 15:47	96 MW	3	Him9
22 October at 15:37	45 MW	2	Him9
22 October at 15:27	45 MW	2	Him9
22 October at 15:17	53 MW	2	Him9
22 October at 15:07	24 MW	1	Him9
22 October at 14:57	68 MW	3	Him9
22 October at 14:47	94 MW	3	Him9
22 October at 14:37	62 MW	3	Him9
22 October at 14:27	22 MW	1	Him9
22 October at 14:17	35 MW	2	Him9
22 October at 14:17	45 MW	4	Terra
22 October at 14:07	19 MW	1	Him9
22 October at 13:57	23 MW	1	Him9
22 October at 13:47	25 MW	1	Him9
22 October at 13:37	83 MW	3	Him9
22 October at 13:27	356 MW	4	Him9
22 October at 13:17	151 MW	3	Him9
22 October at 13:07	186 MW	5	Him9
22 October at 12:57	126 MW	3	Him9
22 October at 12:47	195 MW	3	Him9
22 October at 12:37	39 MW	1	Him9
22 October at 12:27	21 MW	1	Him9
22 October at 11:57	20 MW	1	Him9
22 October at 11:47	24 MW	1	Him9
22 October at 11:37	242 MW	5	Him9
22 October at 11:27	140 MW	3	Him9
22 October at 11:17	276 MW	4	Him9
22 October at 11:07	263 MW	4	Him9
22 October at 10:57	157 MW	3	Him9
22 October at 10:47	44 MW	1	Him9
22 October at 10:37	109 MW	3	Him9
22 October at 10:27	183 MW	2	Him9
22 October at 10:17	43 MW	1	Him9
22 October at 10:07	135 MW	2	Him9
22 October at 09:57	667 MW	3	Him9
22 October at 09:47	1,832 MW	5	Him9
22 October at 09:41	404 MW	11	Aqua
22 October at 09:37	101 MW	2	Him9
22 October at 09:27	119 MW	1	Him9
22 October at 09:17	269 MW	3	Him9
22 October at 09:07	749 MW	6	Him9
22 October at 08:57	192 MW	2	Him9
22 October at 08:47	220 MW	2	Him9
22 October at 08:37	478 MW	4	Him9
22 October at 08:27	1,585 MW	4	Him9
22 October at 08:17	926 MW	4	Him9
22 October at 08:07	209 MW	1	Him9
22 October at 08:05	1,355 MW	49	N21
22 October at 07:57	1,054 MW	6	Him9
22 October at 07:47	1,014 MW	5	Him9
22 October at 07:37	1,250 MW	6	Him9
22 October at 07:27	784 MW	5	Him9
22 October at 07:23	1,179 MW	43	N20
22 October at 07:17	3,225 MW	5	Him9
22 October at 07:07	5,001 MW	8	Him9
22 October at 07:01	641 MW	14	N
22 October at 06:57	1,557 MW	4	Him9
22 October at 06:47	2,498 MW	4	Him9
22 October at 06:37	635 MW	3	Him9
22 October at 06:27	248 MW	2	Him9
22 October at 06:25	183 MW	5	N21
22 October at 06:17	422 MW	2	Him9
22 October at 06:07	189 MW	2	Him9
21 October at 13:37	21 MW	1	Him9

8 other fires near Australie-Occidentale (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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