Fire near Amazonas (BR)

2.33°S, 57.02°W · first detected on 21 October at 20:10

What the satellites measured

This fire was tracked from 21 October at 20:10 to 22 October at 21:17, through 17 satellite detections. The detected extent reaches 1,295 ha.

Detected extent: 1,295 ha
Cumulative power: 1,096 MW
Peak power, one pixel: 149 MW
VIIRS and MODIS detections: 17

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
22 October at 23:54	11 MW	1	Met12
22 October at 23:44	12 MW	1	Met12
22 October at 23:34	12 MW	1	Met12
22 October at 23:24	23 MW	2	Met12
22 October at 23:15	45 MW	2	G19FRP
22 October at 23:14	43 MW	3	Met12
22 October at 23:05	65 MW	3	G19FRP
22 October at 22:55	72 MW	3	G19FRP
22 October at 22:45	72 MW	3	G19FRP
22 October at 22:35	113 MW	3	G19FRP
22 October at 22:25	221 MW	4	G19FRP
22 October at 22:15	319 MW	5	G19FRP
22 October at 22:14	118 MW	1	Met12
22 October at 22:05	352 MW	4	G19FRP
22 October at 22:04	163 MW	1	Met12
22 October at 21:55	741 MW	5	G19FRP
22 October at 21:54	370 MW	2	Met12
22 October at 21:50	783 MW	4	G19
22 October at 21:45	502 MW	6	G19FRP
22 October at 21:44	91 MW	1	Met12
22 October at 21:40	390 MW	3	G19
22 October at 21:35	194 MW	3	G19FRP
22 October at 21:25	193 MW	3	G19FRP
22 October at 21:24	100 MW	2	Met12
22 October at 21:20	93 MW	1	G19
22 October at 21:17	382 MW	6	Aqua
22 October at 21:15	219 MW	2	G19FRP
22 October at 21:14	119 MW	2	Met12
22 October at 21:10	336 MW	3	G19
22 October at 21:05	346 MW	4	G19FRP
22 October at 21:04	204 MW	4	Met12
22 October at 21:00	365 MW	3	G19
22 October at 20:55	400 MW	3	G19FRP
22 October at 20:54	312 MW	7	Met12
22 October at 20:50	454 MW	3	G19
22 October at 20:45	377 MW	4	G19FRP
22 October at 20:44	372 MW	6	Met12
22 October at 20:40	548 MW	4	G19
22 October at 20:35	531 MW	3	G19FRP
22 October at 20:34	232 MW	4	Met12
22 October at 20:30	762 MW	5	G19
22 October at 20:25	705 MW	4	G19FRP
22 October at 20:24	232 MW	5	Met12
22 October at 20:20	433 MW	2	G19
22 October at 20:15	1,058 MW	6	G19FRP
22 October at 20:14	479 MW	6	Met12
22 October at 20:10	1,064 MW	4	G19
22 October at 20:05	470 MW	3	G19FRP
22 October at 20:04	1,114 MW	9	Met12
22 October at 20:02	175 MW	4	N21
22 October at 20:00	562 MW	4	G19
22 October at 19:55	712 MW	4	G19FRP
22 October at 19:54	575 MW	5	Met12
22 October at 19:50	671 MW	4	G19
22 October at 19:45	929 MW	4	G19FRP
22 October at 19:44	124 MW	2	Met12
22 October at 19:40	389 MW	3	G19
22 October at 19:35	927 MW	3	G19FRP
22 October at 19:34	1,104 MW	9	Met12
22 October at 19:30	871 MW	2	G19
22 October at 19:25	1,071 MW	5	G19FRP
22 October at 19:24	1,225 MW	11	Met12
22 October at 19:20	652 MW	4	G19
22 October at 19:17	532 MW	6	N20
22 October at 19:15	384 MW	3	G19FRP
22 October at 19:14	201 MW	4	Met12
22 October at 19:10	256 MW	2	G19
22 October at 19:05	31 MW	1	G19FRP
22 October at 19:04	85 MW	4	Met12
22 October at 18:58	9 MW	1	N
21 October at 21:04	46 MW	2	Met12
21 October at 20:54	40 MW	1	Met12
21 October at 20:25	574 MW	3	G19FRP
21 October at 20:20	249 MW	2	G19
21 October at 20:15	284 MW	2	G19FRP
21 October at 20:10	134 MW	1	G19
21 October at 02:13	6 MW	1	Terra
20 October at 22:10	29 MW	1	G19
20 October at 22:00	43 MW	1	G19
20 October at 21:50	40 MW	1	G19
20 October at 21:40	46 MW	1	G19
20 October at 21:38	78 MW	4	Aqua
20 October at 21:30	38 MW	1	G19
20 October at 21:20	57 MW	1	G19
20 October at 21:10	86 MW	1	G19
20 October at 21:04	103 MW	3	Met12
20 October at 21:00	100 MW	1	G19
20 October at 20:44	40 MW	1	Met12
20 October at 20:30	104 MW	1	G19
20 October at 20:24	31 MW	1	Met12
20 October at 20:20	54 MW	1	G19
20 October at 20:14	44 MW	2	Met12
20 October at 20:10	49 MW	1	G19
20 October at 20:04	59 MW	2	Met12
20 October at 20:00	57 MW	1	G19
20 October at 19:56	126 MW	7	N20
20 October at 19:54	128 MW	4	Met12
20 October at 19:50	162 MW	2	G19
20 October at 19:40	189 MW	2	G19
20 October at 19:34	111 MW	2	Met12
20 October at 19:30	55 MW	1	G19
20 October at 19:20	380 MW	3	G19
20 October at 19:14	198 MW	3	Met12

8 other fires near Amazonas (BR)

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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