Volta River floods Ghana

Sentinel-1 CSAR IW acquired on 25 August 2018 from 18:18:07 to 18:18:32 UTC
Sentinel-1 CSAR IW acquired on 26 August 2018 from 18:10:42 to 18:11:07 UTC
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Sentinel-1 CSAR IW acquired on 12 September 2018 from 18:18:51 to 18:19:16 UTC
Sentinel-1 CSAR IW acquired on 13 September 2018 from 18:09:58 to 18:10:23 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Land, emergency, natural disaster, river, flooding, dam, rain, precipitation, monsoon, Ramsar, Ghana, Burkina Faso
Fig. 1 - S1 (25 & 26.08.2018) - vv,vh,vv colour composite - Between Bagre dam in Burkina Faso, W Transborder Park & Volta lake.
Fig. 2 - 31.08.2018 & 01.09.2018 - Excessive September rainfalls force a release in Bagre dam, causing flood on Nakanbé river (White Volta).
Fig. 3 - 06 & 07.09.2018 - Floods worsen, extend downstream and reach affluents such as Daka river (south, centre).
Fig. 4 - 12 & 13.09.2018 - Seasonal floods expand downstream; at east if now affects Pendjari river (aka Oti), a Ramsar site.