Fire near Australie-Occidentale (AU)

19.48°S, 128.56°E · first detected on 22 October at 03:17

What the satellites measured

This fire was tracked from 22 October at 03:17 to 22 October at 19:17, through 124 satellite detections. The detected extent reaches 2,258 ha.

Detected extent: 2,258 ha
Cumulative power: 3,340 MW
Peak power, one pixel: 234 MW
VIIRS and MODIS detections: 124

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 3 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 06:07	1,298 MW	4	Him9
23 October at 05:57	73 MW	1	Him9
23 October at 05:47	52 MW	1	Him9
23 October at 05:37	124 MW	2	Him9
23 October at 05:27	351 MW	3	Him9
23 October at 05:17	1,998 MW	5	Him9
23 October at 05:07	2,058 MW	7	Him9
23 October at 04:57	408 MW	2	Him9
23 October at 04:37	1,558 MW	9	Him9
23 October at 04:27	203 MW	2	Him9
23 October at 04:17	1,727 MW	8	Him9
23 October at 04:07	1,745 MW	9	Him9
23 October at 03:57	1,153 MW	8	Him9
23 October at 03:47	1,726 MW	6	Him9
23 October at 03:37	1,415 MW	6	Him9
23 October at 03:27	1,523 MW	7	Him9
23 October at 03:17	756 MW	5	Him9
23 October at 03:07	805 MW	6	Him9
23 October at 02:57	402 MW	3	Him9
23 October at 02:47	627 MW	4	Him9
23 October at 02:37	689 MW	5	Him9
23 October at 02:27	791 MW	5	Him9
23 October at 02:17	617 MW	4	Him9
23 October at 02:07	186 MW	3	Him9
23 October at 01:27	155 MW	4	Him9
23 October at 01:17	104 MW	3	Him9
23 October at 01:07	372 MW	4	Him9
23 October at 00:57	388 MW	7	Him9
23 October at 00:47	146 MW	4	Him9
23 October at 00:37	271 MW	4	Him9
23 October at 00:27	57 MW	2	Him9
22 October at 19:17	17 MW	8	N21
22 October at 18:35	24 MW	14	N20
22 October at 18:13	28 MW	17	N
22 October at 14:19	42 MW	4	Terra
22 October at 13:47	85 MW	2	Him9
22 October at 13:37	29 MW	1	Him9
22 October at 13:27	47 MW	1	Him9
22 October at 13:07	464 MW	2	Him9
22 October at 12:57	617 MW	3	Him9
22 October at 12:37	90 MW	1	Him9
22 October at 11:57	75 MW	2	Him9
22 October at 11:37	95 MW	2	Him9
22 October at 11:27	116 MW	2	Him9
22 October at 11:17	121 MW	2	Him9
22 October at 10:57	225 MW	2	Him9
22 October at 10:47	473 MW	3	Him9
22 October at 10:37	80 MW	1	Him9
22 October at 09:47	30 MW	1	Him9
22 October at 09:41	71 MW	3	Aqua
22 October at 09:27	51 MW	1	Him9
22 October at 09:17	147 MW	1	Him9
22 October at 09:07	296 MW	3	Him9
22 October at 08:57	681 MW	5	Him9
22 October at 08:47	194 MW	1	Him9
22 October at 08:37	1,234 MW	4	Him9
22 October at 08:27	48 MW	1	Him9
22 October at 08:07	255 MW	1	Him9
22 October at 07:37	1,254 MW	7	Him9
22 October at 07:27	1,393 MW	8	Him9
22 October at 07:23	1,586 MW	50	N20
22 October at 07:17	182 MW	1	Him9
22 October at 07:07	386 MW	3	Him9
22 October at 07:04	1,501 MW	28	N
22 October at 06:57	2,373 MW	9	Him9
22 October at 06:47	675 MW	5	Him9
22 October at 06:37	571 MW	4	Him9
22 October at 06:27	2,615 MW	8	Him9
22 October at 06:25	95 MW	10	N21
22 October at 06:17	1,226 MW	3	Him9
22 October at 06:07	1,682 MW	6	Him9
22 October at 05:57	1,592 MW	5	Him9
22 October at 05:47	495 MW	3	Him9
22 October at 05:37	608 MW	3	Him9
22 October at 05:27	277 MW	2	Him9
22 October at 05:17	326 MW	4	Him9
22 October at 04:37	206 MW	3	Him9
22 October at 04:27	412 MW	4	Him9
22 October at 04:07	78 MW	1	Him9
22 October at 03:57	365 MW	2	Him9
22 October at 03:47	441 MW	3	Him9
22 October at 03:37	313 MW	3	Him9
22 October at 03:27	156 MW	2	Him9
22 October at 03:17	299 MW	3	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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