Fire near Territoire du Nord (AU)
22.46°S, 133.43°E · first detected on 22 October at 04:37
What the satellites measured
This fire was tracked from 22 October at 04:37 to 22 October at 09:39, through 95 satellite detections. The detected extent reaches 1,460 ha.
- Detected extent
- 1,460 ha
- Cumulative power
- 4,945 MW
- Peak power, one pixel
- 309 MW
- VIIRS and MODIS detections
- 95
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 |
|---|---|---|---|
| 22 October at 14:17 | 10 MW | 1 | Terra |
| 22 October at 13:47 | 55 MW | 1 | Him9 |
| 22 October at 13:27 | 93 MW | 2 | Him9 |
| 22 October at 13:17 | 124 MW | 3 | Him9 |
| 22 October at 13:07 | 59 MW | 2 | Him9 |
| 22 October at 12:57 | 574 MW | 8 | Him9 |
| 22 October at 12:47 | 69 MW | 2 | Him9 |
| 22 October at 12:27 | 16 MW | 1 | Him9 |
| 22 October at 11:37 | 50 MW | 2 | Him9 |
| 22 October at 11:27 | 25 MW | 1 | Him9 |
| 22 October at 11:17 | 234 MW | 3 | Him9 |
| 22 October at 11:07 | 145 MW | 3 | Him9 |
| 22 October at 10:57 | 399 MW | 4 | Him9 |
| 22 October at 10:47 | 251 MW | 3 | Him9 |
| 22 October at 10:37 | 684 MW | 5 | Him9 |
| 22 October at 10:27 | 1,166 MW | 4 | Him9 |
| 22 October at 10:17 | 1,468 MW | 5 | Him9 |
| 22 October at 10:07 | 2,299 MW | 5 | Him9 |
| 22 October at 09:57 | 2,029 MW | 6 | Him9 |
| 22 October at 09:47 | 1,034 MW | 6 | Him9 |
| 22 October at 09:39 | 568 MW | 3 | Aqua |
| 22 October at 09:37 | 204 MW | 1 | Him9 |
| 22 October at 09:27 | 2,310 MW | 10 | Him9 |
| 22 October at 09:17 | 5,221 MW | 14 | Him9 |
| 22 October at 09:07 | 5,140 MW | 12 | Him9 |
| 22 October at 08:57 | 4,943 MW | 8 | Him9 |
| 22 October at 08:47 | 4,768 MW | 7 | Him9 |
| 22 October at 08:37 | 3,914 MW | 7 | Him9 |
| 22 October at 08:27 | 3,536 MW | 8 | Him9 |
| 22 October at 08:17 | 1,562 MW | 7 | Him9 |
| 22 October at 08:07 | 1,290 MW | 6 | Him9 |
| 22 October at 07:57 | 158 MW | 1 | Him9 |
| 22 October at 07:47 | 2,596 MW | 9 | Him9 |
| 22 October at 07:37 | 438 MW | 3 | Him9 |
| 22 October at 07:27 | 1,140 MW | 4 | Him9 |
| 22 October at 07:23 | 1,532 MW | 22 | N20 |
| 22 October at 07:17 | 2,346 MW | 4 | Him9 |
| 22 October at 07:07 | 662 MW | 4 | Him9 |
| 22 October at 07:01 | 1,030 MW | 41 | N |
| 22 October at 06:57 | 1,813 MW | 5 | Him9 |
| 22 October at 06:47 | 3,486 MW | 8 | Him9 |
| 22 October at 06:37 | 2,784 MW | 6 | Him9 |
| 22 October at 06:27 | 2,042 MW | 5 | Him9 |
| 22 October at 06:25 | 2,038 MW | 30 | N21 |
| 22 October at 06:17 | 1,273 MW | 4 | Him9 |
| 22 October at 06:07 | 1,471 MW | 4 | Him9 |
| 22 October at 05:57 | 1,227 MW | 6 | Him9 |
| 22 October at 05:47 | 1,050 MW | 5 | Him9 |
| 22 October at 05:37 | 282 MW | 2 | Him9 |
| 22 October at 05:27 | 260 MW | 2 | Him9 |
| 22 October at 05:17 | 528 MW | 3 | Him9 |
| 22 October at 05:07 | 312 MW | 4 | Him9 |
| 22 October at 04:57 | 250 MW | 3 | Him9 |
| 22 October at 04:37 | 38 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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