Fire near Territoire du Nord (AU)

20.71°S, 133.09°E · first detected on 22 October at 16:37

What the satellites measured

This fire was tracked from 22 October at 16:37 to 23 October at 01:09, through 70 satellite detections. The detected extent reaches 1,633 ha.

Detected extent: 1,633 ha
Cumulative power: 1,308 MW
Peak power, one pixel: 108 MW
VIIRS and MODIS detections: 70

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 07:47	106 MW	1	Him9
23 October at 07:37	1,531 MW	6	Him9
23 October at 07:27	339 MW	3	Him9
23 October at 07:17	249 MW	3	Him9
23 October at 07:07	132 MW	1	Him9
23 October at 06:57	816 MW	5	Him9
23 October at 06:47	2,973 MW	8	Him9
23 October at 06:37	1,876 MW	7	Him9
23 October at 06:27	282 MW	3	Him9
23 October at 06:17	819 MW	7	Him9
23 October at 06:07	919 MW	6	Him9
23 October at 05:57	1,310 MW	7	Him9
23 October at 05:47	919 MW	5	Him9
23 October at 05:37	1,272 MW	5	Him9
23 October at 05:27	1,076 MW	5	Him9
23 October at 05:17	664 MW	4	Him9
23 October at 05:07	528 MW	5	Him9
23 October at 04:57	269 MW	3	Him9
23 October at 04:27	1,468 MW	4	Him9
23 October at 04:17	2,068 MW	6	Him9
23 October at 04:07	2,103 MW	7	Him9
23 October at 03:57	2,704 MW	8	Him9
23 October at 03:47	1,851 MW	6	Him9
23 October at 03:37	986 MW	6	Him9
23 October at 03:27	349 MW	3	Him9
23 October at 03:17	261 MW	3	Him9
23 October at 03:07	1,385 MW	6	Him9
23 October at 02:57	1,007 MW	6	Him9
23 October at 02:47	781 MW	4	Him9
23 October at 02:37	387 MW	3	Him9
23 October at 02:27	754 MW	6	Him9
23 October at 02:17	176 MW	2	Him9
23 October at 02:07	268 MW	4	Him9
23 October at 01:27	141 MW	3	Him9
23 October at 01:17	283 MW	4	Him9
23 October at 01:09	344 MW	7	Terra
23 October at 01:07	255 MW	4	Him9
23 October at 00:57	20 MW	1	Him9
23 October at 00:47	19 MW	1	Him9
23 October at 00:27	58 MW	2	Him9
22 October at 23:47	38 MW	2	Him9
22 October at 23:37	23 MW	1	Him9
22 October at 23:27	55 MW	2	Him9
22 October at 21:27	171 MW	4	Him9
22 October at 21:17	347 MW	6	Him9
22 October at 21:07	641 MW	6	Him9
22 October at 20:57	171 MW	4	Him9
22 October at 20:47	47 MW	2	Him9
22 October at 20:37	83 MW	2	Him9
22 October at 20:34	63 MW	3	Aqua
22 October at 20:27	61 MW	2	Him9
22 October at 20:17	26 MW	1	Him9
22 October at 20:07	123 MW	2	Him9
22 October at 19:27	81 MW	1	Him9
22 October at 19:17	117 MW	3	Him9
22 October at 19:07	37 MW	2	Him9
22 October at 18:57	100 MW	3	Him9
22 October at 18:47	58 MW	2	Him9
22 October at 18:37	68 MW	1	Him9
22 October at 18:35	215 MW	27	N20
22 October at 18:13	355 MW	17	N
22 October at 17:47	82 MW	2	Him9
22 October at 17:37	316 MW	3	Him9
22 October at 17:37	331 MW	16	N21
22 October at 17:17	194 MW	1	Him9
22 October at 17:07	125 MW	1	Him9
22 October at 16:57	106 MW	2	Him9
22 October at 16:37	75 MW	1	Him9

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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