Skip to content
worldfires
CN · China · →

East Ujimqin Banner fire, 10 April 2023 China

Out · last measured on 10 Apr 2023

The fire started on 10 April 2023 in East Ujimqin Banner, China, and satellites saw it burning for 1 day. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,436 hectares from heat detections, spread across a single municipality.

It is the 192th largest in Inner Mongolia Autonomous Region since 2016 (of 370 with a page). Number 140 in China in 2023, of 280.

We have the GWIS perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.

Burnt area
1,436ha
GWIS perimeter (Copernicus)
Duration
1day
10 Apr 2023 – 10 Apr 2023
Municipalities hit
0
counties
Started on
10 Apr
2023
Danger at start
12
Moderate · FWI index

Where it burned

The weather it burned in

10°high
72km/h · peak gust
21%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started. Rain came after the fire: 1.2 mm on 19 Apr.

This area had burned before

64% of the perimeter overlaps earlier fires recorded since 2016: 433 ha in 2016, 497 ha in 2022.

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
10 Apr 10.1 °C 21 % 72 km/h 1.1 mm Moderate 12
11 Apr after -2.1 °C 28 % 88 km/h 0.8 mm Low 11
12 Apr after 5.9 °C 13 % 56 km/h 0.0 mm Moderate 12
13 Apr after 8.1 °C 15 % 41 km/h 0.0 mm Low 10
14 Apr after 8.6 °C 19 % 42 km/h 0.0 mm Low 11
15 Apr after 5.3 °C 38 % 26 km/h 0.7 mm Low 6
16 Apr after 10.4 °C 18 % 34 km/h 0.0 mm Low 10
17 Apr after 13.3 °C 25 % 48 km/h 0.0 mm Moderate 13
18 Apr after 9.5 °C 13 % 53 km/h 0.0 mm Moderate 17
19 Apr after 10.0 °C 24 % 59 km/h 1.2 mm Low 9

Before and after, from space

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

Before · 3 Apr 2023
After · 17 Apr 2023

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

The smoke

CAMS · Copernicus

On 12 April 2023 the air beside the fire reached 108 µg/m³ of PM2.5. That day averaged 36: 2.4 times the WHO daily guideline (15).

PM2.5 peak108 µg/m³
Days over the guideline4 days
PM10155 µg/m³
Optical depth1.28
8910111213
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Other fires nearby

All fires in China ›

Frequently asked questions

How long did the East Ujimqin Banner fire last?
GWIS (Copernicus) dates it between 10 April 2023 and 10 April 2023: 1 day 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 1,436 hectares (14.4 km²). It is an estimate: official national figures may differ.
What was the weather like?
During the fire the temperature reached 10.1 °C, humidity dropped to 21 % and gusts hit 72 km/h. The fire danger index (FWI) reached 12, class Moderate.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of China (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.

Emergency number: 119

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 119.

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 (Open Data Commons Open Database License 1.0). 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.