Articles | Volume 18, issue 5
Nat. Hazards Earth Syst. Sci., 18, 1493–1516, 2018
https://doi.org/10.5194/nhess-18-1493-2018
Nat. Hazards Earth Syst. Sci., 18, 1493–1516, 2018
https://doi.org/10.5194/nhess-18-1493-2018

Research article 30 May 2018

Research article | 30 May 2018

Low cost, multiscale and multi-sensor application for flooded area mapping

Daniele Giordan et al.

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Cited articles

Ahamed, A., Bolten, J., Doyle, C., and Fayne, J.: Near Real-Time Flood Monitoring and Impact Assessment Systems, in: Remote Sensing of Hydrological Extremes, Springer International Publishing, Cham, 105–118, https://doi.org/10.1007/978-3-319-43744-6_6, 2017. 
Amadio, M., Mysiak, J., Carrera, L., and Koks, E.: Improving flood damage assessment models in Italy, Nat. Hazards, 82, 2075–2088, https://doi.org/10.1007/s11069-016-2286-0, 2016. 
ARPA Piemonte: Evento alluvionale 21–26 novembre 2016 – rapporto preliminare (Italian), 21–25 November flood event preliminary report, available at: http://www.arpa.piemonte.gov.it/pubblicazioni-2/relazioni-tecniche/analisi-eventi/eventi-2016/rapporto-preliminare-novembre-2016-def.pdf/at_download/file (last access: 1 December 2017), 2016. 
Arrighi, C., Brugioni, M., Castelli, F., Franceschini, S., and Mazzanti, B.: Urban micro-scale flood risk estimation with parsimonious hydraulic modelling and census data, Nat. Hazards Earth Syst. Sci., 13, 1375–1391, https://doi.org/10.5194/nhess-13-1375-2013, 2013. 
Barredo, J. I.: Major flood disasters in Europe: 1950–2005, Nat. Hazards, 42, 125–148, https://doi.org/10.1007/s11069-006-9065-2, 2007. 
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We present a multiscale and multi-sensor methodology for flood mapping using free or low-cost data. We first mapped flooded areas at basin scale using free satellite data using both SAR and multispectral sensors. At local scale we refine mapping using very high-resolution images from Remotely Piloted Aerial System and terrestrial car camera, then we used these data to create 3-D model with structure from motion (SfM). All these data allowed creating accurate flooded area and water depth maps.
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