Overall Orange alert Flood for China
in China

Flood impact summary

Flood China is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1100514
Deaths: 3
Displaced: 10000
Region: Chongqing, Guizhou, Qijiang District, Tongzi
Countries: China
From - To 21 Jun - 21 Jun
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 21-06-2020

SENDAI Indicator A N Country Location Info
death 3 China Tongzi
SENDAI Indicator B N Country Location Info
affected 43725 China Qijiang District
affected 74000 China Guizhou
displaced 10000 China Tongzi
SENDAI Indicator C N Country Location Info
houses 10 China Tongzi

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2020-06-14 / 2020-07-02  

Sunday 14/06Monday 15/06Tuesday 16/06Wednesday 17/06Thursday 18/06Friday 19/06Saturday 20/06Sunday 21/06Monday 22/06Tuesday 23/06Wednesday 24/06Thursday 25/06Friday 26/06Saturday 27/06Sunday 28/06Monday 29/06Tuesday 30/06Wednesday 01/07Thursday 02/07

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 20 deaths and 7705 displaced 26 Jun 2020 28 Jun 2020 GLOFAS
2 3 deaths and 10000 displaced 21 Jun 2020 21 Jun 2020 GLOFAS
3 3 deaths 29 Jun 2020 30 Jun 2020 GLOFAS
4 0 deaths and 9722 displaced 27 Jun 2020 27 Jun 2020 GLOFAS
5 0 deaths and 27000 displaced 01 Jul 2020 01 Jul 2020 GLOFAS
6 0 deaths and 27397 displaced 01 Jul 2020 01 Jul 2020 GLOFAS
7 0 deaths 25 Jun 2020 25 Jun 2020 GLOFAS

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.