Product ID: 2554 - English
Published: 13 Mar, 2017
GLIDE: TC20170306MDG
FootPrint (Lat x Long, WSG84 Geographic, decimal degrees)
TopLeft: -15.5231609 x 49.8944686
BottomRight: -15.2781294 x 49.5235376

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This map illustrates satellite-detected flood waters extent and evolution between 08 and 10 March 2017 over Maroantsetra area, Analanjirofo region in Madagascar as detected by TerraSAR-X radar images acquired on 10 and 08 March 2017. Between 08 and 10 March 2017 and within this map extent, waters receded from about 4,270 ha of lands. Many areas within this zone remain affected and ~6,230 ha of lands were still flooded on the 10 March 2017 whereas ~10,500 ha of lands were flooded the 08 March 2017. It corresponds to about 40% decrease. It is likely that flood waters 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.
Satellite Data (1): TerraSAR-X
Imagery Dates: 10 March 2017
Resolution: 15 m
Copyright: TerraSAR-X/TanDEM-X © DLR e.V. 2017,
Distribution Airbus DS Geo GmbH
Source: DLR
Satellite Data (2): TerraSAR-X
Imagery Dates: 08 March 2017
Resolution: 8 m
Copyright: TerraSAR-X/TanDEM-X © DLR e.V. 2017,
Distribution Airbus DS Geo GmbH
Source: DLR
Satellite Data (3): Radarsat-2
Imagery Dates: 04 May 2014
Resolution: 6 m
Copyright: MacDonald, Dewitter and Associates, Ltd. (2017)
Source: CSA
Baseline Data : HDX, OCHA & WFP,
OpenStreetMap
Analysis : UNITAR UNOSAT
Production: UNITAR UNOSAT