Fire near Valdesamario (ES)

42.74°N, 6.03°W · first detected on 22 July at 21:55

What the satellites measured

This fire was tracked from 22 July at 21:55 to 26 July at 15:16, that is 4 days, through 579 satellite detections. The detected extent reaches 3,481 ha.

Detected extent
3,481 ha
Cumulative power
19,401 MW
Peak power
693 MW
Detections
579

“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 satellite detection and are not an official assessment: only the local fire and civil protection authorities are authoritative.

Replay how the fire spread

The map is centred on this fire and loads only its detections. The timeline below covers the whole fire, from the first satellite pass to the last. “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.

The detected extent

Outline of the burned area near Valdesamario (ES), drawn over satellite imagery
The outline is the union of the ground footprints of every satellite detection of this fire, from the first pass to the last. The background is the EOX cloudless Sentinel-2 mosaic, 2024 vintage: it shows the landscape BEFORE these fires, not the burn scar.

The spread, pass after pass

  1. Valdesamario (ES) seen by Sentinel-2 on 19 July

    19 July

    before the fire

  2. Valdesamario (ES) seen by Sentinel-2 on 22 July

    22 July

    during

  3. Valdesamario (ES) seen by Sentinel-2 on 24 July

    24 July

    during

  4. Valdesamario (ES) seen by Sentinel-2 on 26 July

    26 July

    during

  5. Valdesamario (ES) seen by Sentinel-2 on 27 July

    27 July

    after

One image per usable Sentinel-2 pass, on the same framing throughout so that the comparison means something. The satellite comes back every two to five days and clouds rule out some of the passes: the gaps in the series are days without an image, not days without fire.

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 30 days; beyond that, clustering would merge two successive fires in the same place.

Fire dynamics

Loading history…

Satellite passes in detail

PassPowerDetectionsSensor
13 August at 15:2813 MW1Met12
13 August at 14:5814 MW1Met12
26 July at 15:1615 MW2N20
26 July at 14:559 MW2N
26 July at 14:2189 MW5N21
26 July at 05:3237 MW6N20
26 July at 05:13115 MW11N
26 July at 04:38180 MW11N21
26 July at 03:5280 MW13N20
26 July at 03:32102 MW9N
25 July at 22:141,444 MW5Terra
25 July at 17:29353 MW6Aqua
25 July at 16:20318 MW7N21
25 July at 15:33164 MW4N20
25 July at 15:1691 MW3N
25 July at 14:407 MW1N21
25 July at 11:0926 MW1Terra
25 July at 06:2719 MW2Aqua
25 July at 04:5628 MW6N21
25 July at 04:11136 MW31N20
25 July at 03:5260 MW20N
25 July at 03:15268 MW27N21
24 July at 16:521,452 MW5Aqua
24 July at 15:551,965 MW36N20
24 July at 15:332,815 MW31N
24 July at 14:57914 MW7N21
24 July at 14:14483 MW13N20
24 July at 07:27267 MW2Aqua
24 July at 05:49167 MW26N
24 July at 05:4939 MW1Aqua
24 July at 05:13361 MW52N21
24 July at 04:30358 MW72N20
24 July at 04:11354 MW34N
24 July at 03:346 MW4N21
23 July at 22:341,548 MW15Terra
23 July at 17:52651 MW4Aqua
23 July at 16:12339 MW7N20
23 July at 15:53601 MW9N
23 July at 15:18962 MW13N21
23 July at 14:32521 MW14N20
23 July at 14:14255 MW8N
23 July at 11:28202 MW6Terra
23 July at 06:4975 MW4Aqua
23 July at 05:3488 MW7N21
23 July at 04:4790 MW9N20
23 July at 04:28108 MW13N
23 July at 03:54130 MW9N21
22 July at 23:33982 MW4Terra
22 July at 21:55128 MW2Terra

One other fire near Valdesamario (ES)

Separate fires, apart in time or in space, not pieces of this one. A single municipality can have several over one summer, and the forest of Fontainebleau alone covers 172 square kilometres.

Follow live

The map shows active fires in 3D, with smoke plumes, forecast wind, drop zones and the live position of the Canadair, Dash 8 and Air Tractor aircraft of the French Sécurité civile.

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