Overall Orange alert Flood
in Japan

Flood impact summary

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

Updated: this report is based on update 4: (11 Jul 2018 11:00) .

GDACS ID: 1000208
Deaths: 179
Displaced: 11200
Region: Pernambuco
Locations:
Known identifiers for this event: FL-2018-000082-JPN

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 11-07-2018





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 affectedSourceDate added
1 100 killed and 1500000 displaced FloodList provided by Copernicus GloFAS 09 Jul 2018 00:00
2 128 killed and 11200 displaced FloodList provided by Copernicus GloFAS 10 Jul 2018 00:00
3 179 killed and 11200 displaced FloodList provided by Copernicus GloFAS 10 Jul 2018 00:00
4 179 killed and 11200 displaced FloodList provided by Copernicus GloFAS 11 Jul 2018 00:00

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.