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Madagascar: Satellite Detected Waters Extent in Tomasina Districts, Atsinanana Region

This map illustrates satellite-detected water extent as of 07 January 2018 over Toamasina districts, Atsinanana Region, in Madagascar as detected by Sentinel-1. Some standing water areas could be observed north and south of Toamasina, mainly in the agricultural and/or open areas along the river. It is likely that floodwaters have been systematically underestimated along highly vegetated areas along main river banks and within built-up urban areas because of the special characteristics of the satellite data used. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR UNOSAT.

United Nations Operational Satellite Applications Programme
Original Publication Date: 
10 Jan 2018
Map/Infographic Type: 
Natural Disasters
Natural Disasters
Tropical Cyclone Ava - Jan 2018