Thermal detections in Tamanghasset1 place with measured heat
Events are grouped by their current status. Quiet or archived does not mean safe, and an unconfirmed event is not an all-clear.
Satellite
Where the measurements are
Heat marks show satellite measurements. Orbit tracks are modelled; glow sizes and place-label positions are display context.
What each mark means
- VIIRS (NASA)375 m—
No detections stored for this frame.
- Meteosat (EUMETSAT)about 1–3 km per cell
Measures radiated power, which is what sizes the glow. Its individual pixel positions are not stored, so no Meteosat footprint is drawn — inferring one from the sharper layer would put a detection pixel on ground nobody measured.
- True geographic scale, corrected for latitude. Frame is about 1232 km across.
- At this scale both sensor footprints are smaller than a pixel, so no true-scale square is drawn. Two squares clamped to the same legible minimum would show a 1:1 ratio for a 5:1 fact.
- The glow means “an event, roughly here”. Its area follows the measured power and its radius is capped, because an uncapped one would assert a burnt extent nobody measured. The number carries the magnitude.
- Grey marks detections shown as history, including those on quiet or archived events. It does not establish that a later satellite pass measured no activity.
- At country scale each event is one glow. Individual 375 m detections resolve on the event page, where they are larger than a pixel.
Current measurable activity
Tamanghasset
Tamanghasset
Confirmed by two independent satellite looksLatest measured power: 9,2 MW ·
Não há dados oficiais integrados para este país.