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Biriwa fire, 30 January 2016 Biriwa

Out · last detection 3 Feb 2016, 13:15 UTC

The fire started on 30 January 2016 in Biriwa, Sierra Leone, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,181 hectares from heat detections, spread across a single municipality.

It is the 778th largest in Northern since 2016 (of 1112 with a page). Number 154 in Sierra Leone in 2016, of 208.

Compare with…
Burnt area
1,181ha
GWIS perimeter (Copernicus)
Duration
5days
30 Jan 2016 – 3 Feb 2016
Municipalities hit
1
chiefdoms
Started on
30 Jan
2016
Heat detections
28
in a single hotspot: 31 MW
Average daily power
32MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 30 Jan3 Feb
3 Feb 2016

How it evolved, day by day

30 Jan 2016 · 6 MW · 2 1 Feb 2016 · 83 MW · 5 2 Feb 2016 · 25 MW · 8 3 Feb 2016 · 15 MW · 7
30 Jan 1 Feb 2 Feb 3 Feb

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 0.7% of the area of London (12 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Biriwa where it started
    1,188 ha reached on 24 Jan
    1.3 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 23 Jan 2016
After · 10 Feb 2016

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 28Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Sierra Leone ›

Frequently asked questions

How long did the Biriwa fire last?
GWIS (Copernicus) dates it between 30 January 2016 and 3 February 2016: 5 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,181 hectares (11.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Biriwa (1,188 ha, 1.3 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Sierra Leone (geoBoundaries). It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Satellite cross-check

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 28 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.

How we build fire pages: methodology ›

Where this data comes from

The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM3 (Creative Commons Attribution 4.0 (CC BY 4.0)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.