Overall Orange alert Flood
in China

Flood impact summary

This flood is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1101029
Deaths: 0
Displaced: -
Region: Chongqing
Countries: China
From - To 24 Aug - 26 Aug
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 27-08-2021

SENDAI Indicator B N Country Location Info
affected 3055 China Chongqing
SENDAI Indicator C N Country Location Info
agriculture - China Chongqing
houses destroyed 105 China Chongqing

Satellite Observation

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Timeline of revisions

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlert ColorPopulation affectedStart DateEnd DateSource
1 0 deaths and 1659 displaced 13 Aug 2021 15 Aug 2021 FloodList
2 21 deaths and 11000 displaced 11 Aug 2021 13 Aug 2021 FloodList
3 0 deaths and 80794 displaced 07 Aug 2021 11 Aug 2021 FloodList
4 0 deaths and 300 displaced 21 Aug 2021 23 Aug 2021 FloodList
5 0 deaths 24 Aug 2021 26 Aug 2021 FloodList

Flood polygons

This polygon (translucent blue with a blue border) is drawn by the analysts recording the flood event. It is meant to include all the areas reported as affected, by official source or the media. It does not represent the area actually under water.

Microwave flood detection

Flooded area, as detected in microwaves by the Global Flood Detection System of the JRC, based on NASA TRMM/GPM observations. This system has a rather low resolution (of 5-10km) but is not affected by clouds.
For more details, see http://www.unisdr.org/files/9622_LBNA23303ENC002.pdf.
The areas with a flood signal along the coast are an artefact of the system and should not be considered.

Optical Flood detection

Flooded area as detected in optical wavelengths by NASA/MODIS, known as "MODIS Flood Product". Data are made available by NASA GSFC Flood Mapping Project, http://oas.gsfc.nasa.gov/floodmap/index.html. Resolution of 250m, heavily affected by cloud cover.