Fire near Amazonas (BR)

5.65°S, 60.24°W · first detected on 5 September at 20:19

What the satellites measured

This fire was tracked from 5 September at 20:19 to 6 September at 14:49, through 35 satellite detections. The detected extent reaches 475 ha.

Detected extent: 475 ha
Cumulative power: 335 MW
Peak power, one pixel: 98 MW
VIIRS and MODIS detections: 35

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 375 m pixel counts in full 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 and loads only its detections. The timeline below covers the whole known life of the fire, from the first trace, satellite or report, to the last announcement from emergency services, and the ticks on the bar mark those announcements. Detections often stop before containment: a fire stops radiating once it stops spreading, which is exactly when it is declared contained. “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. “12 h” stacks twelve hours , as the home map does, where stacking avoids an empty screen between two satellite passes. 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
6 September at 22:00	128 MW	1	G19
6 September at 21:50	66 MW	1	G19
6 September at 21:45	33 MW	1	G19FRP
6 September at 21:34	145 MW	2	Met12
6 September at 21:30	345 MW	4	G19
6 September at 21:25	98 MW	2	G19FRP
6 September at 21:24	172 MW	3	Met12
6 September at 21:20	216 MW	3	G19
6 September at 21:15	152 MW	4	G19FRP
6 September at 21:14	172 MW	2	Met12
6 September at 21:10	404 MW	4	G19
6 September at 21:05	25 MW	1	G19FRP
6 September at 21:04	255 MW	5	Met12
6 September at 21:00	285 MW	4	G19
6 September at 20:54	246 MW	5	Met12
6 September at 20:50	289 MW	4	G19
6 September at 20:45	77 MW	1	G19FRP
6 September at 20:44	252 MW	4	Met12
6 September at 20:40	556 MW	7	G19
6 September at 20:34	435 MW	7	Met12
6 September at 20:30	211 MW	3	G19
6 September at 20:24	363 MW	5	Met12
6 September at 20:20	286 MW	4	G19
6 September at 20:14	277 MW	6	Met12
6 September at 20:10	385 MW	5	G19
6 September at 20:05	316 MW	2	G19FRP
6 September at 20:04	305 MW	5	Met12
6 September at 20:00	693 MW	35	N
6 September at 20:00	646 MW	8	G19
6 September at 19:55	286 MW	2	G19FRP
6 September at 19:54	327 MW	4	Met12
6 September at 19:50	1,078 MW	11	G19
6 September at 19:45	92 MW	1	G19FRP
6 September at 19:44	167 MW	3	Met12
6 September at 19:40	679 MW	8	G19
6 September at 19:34	208 MW	4	Met12
6 September at 19:30	576 MW	6	G19
6 September at 19:25	513 MW	3	G19FRP
6 September at 19:24	341 MW	5	Met12
6 September at 19:24	491 MW	35	N21
6 September at 19:20	361 MW	4	G19
6 September at 19:15	522 MW	3	G19FRP
6 September at 19:14	486 MW	5	Met12
6 September at 19:10	1,004 MW	8	G19
6 September at 19:04	96 MW	2	Met12
6 September at 19:00	691 MW	7	G19
6 September at 18:54	176 MW	4	Met12
6 September at 18:50	286 MW	3	G19
6 September at 18:45	92 MW	1	G19FRP
6 September at 18:44	344 MW	6	Met12
6 September at 18:40	378 MW	4	G19
6 September at 18:35	143 MW	2	G19FRP
6 September at 18:34	354 MW	5	Met12
6 September at 18:30	86 MW	1	G19
6 September at 18:24	46 MW	2	Met12
6 September at 18:20	432 MW	6	G19
6 September at 18:15	192 MW	2	G19FRP
6 September at 18:14	55 MW	1	Met12
6 September at 18:10	299 MW	4	G19
6 September at 18:05	230 MW	2	G19FRP
6 September at 18:04	78 MW	2	Met12
6 September at 18:00	510 MW	5	G19
6 September at 17:55	241 MW	2	G19FRP
6 September at 17:54	190 MW	2	Met12
6 September at 17:50	337 MW	4	G19
6 September at 17:45	191 MW	3	G19FRP
6 September at 17:40	157 MW	2	G19
6 September at 17:35	395 MW	2	G19FRP
6 September at 17:34	403 MW	5	Met12
6 September at 17:30	354 MW	3	G19
6 September at 17:25	390 MW	3	G19FRP
6 September at 17:24	331 MW	3	Met12
6 September at 17:20	408 MW	3	G19
6 September at 17:15	535 MW	4	G19FRP
6 September at 17:14	441 MW	5	Met12
6 September at 17:10	445 MW	3	G19
6 September at 17:05	311 MW	3	G19FRP
6 September at 17:04	264 MW	3	Met12
6 September at 17:00	221 MW	2	G19
6 September at 16:55	229 MW	2	G19FRP
6 September at 16:54	209 MW	2	Met12
6 September at 16:50	263 MW	3	G19
6 September at 16:45	267 MW	2	G19FRP
6 September at 16:44	322 MW	5	Met12
6 September at 16:40	279 MW	3	G19
6 September at 16:35	399 MW	3	G19FRP
6 September at 16:34	277 MW	3	Met12
6 September at 16:30	533 MW	4	G19
6 September at 16:25	327 MW	3	G19FRP
6 September at 16:24	307 MW	4	Met12
6 September at 16:20	457 MW	4	G19
6 September at 16:15	256 MW	2	G19FRP
6 September at 16:14	238 MW	3	Met12
6 September at 16:10	293 MW	2	G19
6 September at 16:05	411 MW	4	G19FRP
6 September at 16:04	336 MW	4	Met12
6 September at 16:00	480 MW	4	G19
6 September at 15:55	510 MW	4	G19FRP
6 September at 15:54	452 MW	6	Met12
6 September at 15:50	521 MW	3	G19
6 September at 15:45	339 MW	2	G19FRP
6 September at 15:44	297 MW	4	Met12
6 September at 15:40	378 MW	2	G19
6 September at 15:35	377 MW	3	G19FRP
6 September at 15:34	330 MW	4	Met12
6 September at 15:30	367 MW	2	G19
6 September at 15:25	293 MW	3	G19FRP
6 September at 15:24	215 MW	4	Met12
6 September at 15:20	281 MW	2	G19
6 September at 15:15	332 MW	3	G19FRP
6 September at 15:14	116 MW	3	Met12
6 September at 15:10	341 MW	2	G19
6 September at 15:05	231 MW	3	G19FRP
6 September at 15:00	232 MW	2	G19
6 September at 14:55	171 MW	2	G19FRP
6 September at 14:50	191 MW	2	G19
6 September at 14:49	155 MW	3	Terra
6 September at 14:45	123 MW	2	G19FRP
6 September at 14:40	83 MW	1	G19
6 September at 14:35	106 MW	2	G19FRP
6 September at 14:30	64 MW	1	G19
6 September at 14:25	108 MW	2	G19FRP
6 September at 14:20	73 MW	1	G19
6 September at 14:15	69 MW	2	G19FRP
6 September at 14:10	41 MW	1	G19
6 September at 14:05	22 MW	1	G19FRP
6 September at 14:00	24 MW	1	G19
6 September at 13:55	21 MW	1	G19FRP
6 September at 13:50	23 MW	1	G19
6 September at 09:22	9 MW	1	Aqua
6 September at 07:42	34 MW	15	N20
6 September at 07:23	26 MW	14	N
6 September at 06:46	22 MW	12	N21
5 September at 20:19	434 MW	25	N

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