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Hydrology 2018, 5(3), 39; https://doi.org/10.3390/hydrology5030039

Applications of Open-Access Remotely Sensed Data for Flood Modelling and Mapping in Developing Regions

Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
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Received: 28 March 2018 / Revised: 21 July 2018 / Accepted: 22 July 2018 / Published: 31 July 2018
(This article belongs to the Special Issue Advances in Large Scale Flood Monitoring and Detection)
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Abstract

Flood modelling and mapping typically entail flood frequency estimation, hydrodynamic modelling and inundation mapping, which require specific datasets that are often unavailable in developing regions due to financial, logistical, technical and organizational challenges. This review discusses fluvial (river) flood modelling and mapping processes and outlines the data requirements of these techniques. This paper explores how open-access remotely sensed and other geospatial datasets can supplement ground-based data and high-resolution commercial satellite imagery in data sparse regions of developing countries. The merits, demerits and uncertainties associated with the application of these datasets, including radar altimetry, digital elevation models, optical and radar images, are discussed. Nigeria, located within the Niger river basin of West Africa is a typical data-sparse country, and it is used as a case study in this review to evaluate the significance of open-access datasets for local and transboundary flood analysis. Hence, this review highlights the vital contribution that open access remotely sensed data can make to flood modelling and mapping and to support flood management strategies in developing regions. View Full-Text
Keywords: open-access remotely sensed data; flood mapping and modelling; altimetry; synthetic aperture radar; optical satellite; Digital Elevation Model (DEM); and transboundary floods open-access remotely sensed data; flood mapping and modelling; altimetry; synthetic aperture radar; optical satellite; Digital Elevation Model (DEM); and transboundary floods
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ekeu-wei, I.T.; Blackburn, G.A. Applications of Open-Access Remotely Sensed Data for Flood Modelling and Mapping in Developing Regions. Hydrology 2018, 5, 39.

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