Overall Green alert Flood for São Tomé and Príncipe
in São Tomé and Príncipe

Flood impact summary

Flood São Tomé and Príncipe is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1101256
Deaths: 2
Displaced: -
Region: São Tomé and Príncipe
Countries: São Tomé and Príncipe
From - To 28 Dec - 10 Jan
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 13-01-2022

SENDAI Indicator A N Country Location Info
death 2 São Tomé and Príncipe São Tomé and Príncipe
SENDAI Indicator B N Country Location Info
affected 9000 São Tomé and Príncipe São Tomé and Príncipe

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2021-12-21 / 2022-01-17  

Tuesday 21/12Wednesday 22/12Thursday 23/12Friday 24/12Saturday 25/12Sunday 26/12Monday 27/12Tuesday 28/12Wednesday 29/12Thursday 30/12Friday 31/12Saturday 01/01Sunday 02/01Monday 03/01Tuesday 04/01Wednesday 05/01Thursday 06/01Friday 07/01Saturday 08/01Sunday 09/01Monday 10/01Tuesday 11/01Wednesday 12/01Thursday 13/01Friday 14/01Saturday 15/01Sunday 16/01Monday 17/01

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 2 deaths 28 Dec 2021 10 Jan 2022 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.